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An application programming interface for making digital resources and capabilities available in many different types of applications and integrations.

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U.S. Steel SteelTrack API

SteelTrack is U.S. Steel's internet-based customer platform providing order status reporting, inventory tracking, shipment history, material release, and physical and chemical test reporting. The A...

UBC Abacus Dataverse API

Abacus is UBC Library's research-data repository running on the open Dataverse platform (version 5.9 confirmed live), which exposes the standard Dataverse REST APIs for discovering, searching, and ...

UCDP API

The Uppsala Conflict Data Program (UCDP) API is a fully RESTful HTTP API returning JSON, providing programmatic access to UCDP conflict datasets including georeferenced events (gedevents), armed co...

UCL API Room Bookings

Fetch details of room bookings and free/empty rooms across UCL. Part of the UCL API platform; data is refreshed roughly every twenty minutes from UCL source systems.

UCSC Genome Browser REST API

REST API providing programmatic access to the UCSC Genome Browser's genomic data, including genome assemblies, DNA sequences, annotation tracks, and track hubs. All endpoints use HTTP GET and retur...

UCalgary Space Remote Sensing API

RESTful API from the University of Calgary Space Remote Sensing group for accessing space physics and remote-sensing data (all-sky imagers, riometers, and related instruments). Usable directly over...

UChile Research Data Repository (Dataverse API)

The University of Chile research data repository runs on Dataverse (version 5.13 confirmed live via /api/info/version) and exposes the standard Dataverse REST/native and Search APIs for discovering...

UG Pure Web Services REST API

The Elsevier Pure web-services REST API exposed at the University of Groningen Pure instance, providing programmatic access to research information (publications, persons, organisations, projects, ...

UK Open Banking Read/Write API

RESTful APIs enabling Third Party Providers (TPPs) to access customer account information and initiate payments on behalf of consumers and businesses, with customer consent, via Account Servicing P...

UKG Pro HCM API

The UKG Pro HCM API provides programmatic access to human capital management data including employees, personnel actions, benefits, payroll, performance, and organizational structure. Uses Basic Au...

UKG Pro Workforce Management API

The UKG Pro WFM API provides programmatic access to time and labor management data including punches, shifts, schedules, accruals, and attendance. Supports timekeeping, scheduling, and compliance w...

UN Comtrade Data API

REST API for extracting international merchandise and services trade statistics. Provides access to final trade data, tariffline data, data availability, metadata, live updates, and bulk file downl...

UNC Dataverse API

Native REST API for UNC Dataverse, the university's research data repository supported by the Office of the Vice Chancellor for Research. The API supports searching, depositing, downloading and man...

UNFI Harmony Core API

UNFI's Harmony Core API provides read-only access to 42 data files covering supplier, product, inventory, and sales data across UNFI's distribution network. Consumers can perform SQL-style queries ...

UNICEF GeoSight API

GeoSight is UNICEF's geospatial data platform for visualizing and analyzing humanitarian and development indicators by geography. The REST API provides access to geospatial indicator data layers, c...

UNICEF Reference Data Manager API

The UNICEF Reference Data Manager (RDM) API provides structured access to UNICEF's reference data including geographic hierarchies, organizational units, and classification codes used across UNICEF...

UPS Shipping API

The UPS Shipping API enables developers to create and manage shipments, generate shipping labels, validate addresses, retrieve rates, track packages, schedule pickups, and access time-in-transit in...

URL Metadata API

Extract URL metadata and Open Graph tags for any web page. Returns a structured JSON document with title, description, image, site name, type, favicon, theme color, author, and published date for u...

US Address Enrichment API

Returns up to 350 property attributes for a US address, including property characteristics, estimated value, ownership data, and neighborhood demographics to enrich address records.

US Army Public API

The US Army Public API provides public access to Army news articles, events, and official announcements. Documented with OpenAPI 3 (OAS3) and a Swagger UI interface at api.army.mil. The API enables...

US Autocomplete Pro API

Provides real-time US address suggestions as users type, returning verified deliverable address candidates to improve form completion speed and accuracy.

US Bank ACH Originations API

The ACH Originations API enables origination of ACH (Automated Clearing House) payments from U.S. Bank corporate accounts. Supports standard ACH credit and debit transactions for payroll, vendor pa...

US Bank Corporate Account Information API

The Corporate Account Information API provides access to U.S. Bank deposit account balances and transaction data for corporate customers. It enables retrieval of current-day and previous-day accoun...

US Bank Positive Pay API

The Positive Pay API helps detect check fraud by electronically matching checks to issued items. Enables retrieval of exception items (checks that don't match issued items), submission of pay/retur...

US Bank Push to Card API

The Push to Card API enables instant fund disbursements directly to Visa and Mastercard debit cards. Ideal for disbursements, refunds, and payouts up to $125,000 per transaction. Transactions are i...

US Bank RTP Real-Time Payments API

The RTP Real-Time Payments API enables 24/7/365 real-time payment origination through The Clearing House RTP network. Supports credit transfer messages, request for payment (RFP), and RTP eligibili...

US Core Server CapabilityStatement

This section describes the expected capabilities of the US Core Server actor which is responsible for providing responses to the queries submitted by US Core Requestors. Implementations meet ONC 20...

US Extract API

Extracts and validates US addresses from freeform, unstructured text input, identifying and standardizing all address mentions within a block of text.

US Reverse Geocode API

Converts latitude/longitude coordinates into US street addresses, returning the nearest verified addresses with full component breakdown and metadata.

US Street Address API

Verifies and validates US street addresses against the USPS database, returning standardized components, deliverability status, and up to 55 metadata points including ZIP9 geocodes. Supports both s...

US ZIP Code API

Looks up and validates US ZIP codes, returning city and state associations, county data, and related geographic metadata for a given ZIP or city/state combination.

USACE CWMS Data API

The Corps Water Management System Data API (CDA) is a RESTful API providing public access to USACE water management data. It supports retrieval of timeseries data (stream flow, reservoir levels, pr...

USACE Corps Water Management System Data API

The USACE Corps Water Management System Data API (CDA) is a REST service providing programmatic access to USACE water management data including time series measurements, monitoring locations, ratin...

USADF Grant Opportunities API

Access to USADF grant opportunity listings through the Grants.gov API. USADF posts open grant solicitations on Grants.gov for African grassroots enterprises, cooperatives, and social entrepreneurs ...

USADF Grants Data API

Access to USADF grant award data through the USASpending.gov API. Provides programmatic access to USADF grants, awards, recipients, and spending profiles as reported to the federal awards transpare...

USCIS Case Status API

The USCIS Case Status API provides case status information to USCIS customers and their representatives who require regular access to case status information. It accepts a 13-character USCIS receip...

USCIS FOIA Request and Status API

The USCIS FOIA Request and Status API enables consumers to submit Freedom of Information Act (FOIA) or Privacy Act (PA) requests for Alien File records and check the status of submitted requests us...

USDA AMS MARS API (MyMarketNews)

The Market Analysis Reporting System (MARS) API provides programmatic access to USDA AMS agricultural market news data. The API allows users to automatically pull raw market news data including com...

USDA Ag Data Commons CKAN API

The USDA Ag Data Commons is a DKAN/CKAN-based open data repository for USDA agricultural research datasets. The API provides metadata search and retrieval for datasets from ARS national programs in...

USDA ERS ARMS Data API

The USDA Economic Research Service (ERS) ARMS Data API provides access to the Agricultural Resource Management Survey (ARMS), covering farm finances, production practices, and resource use for U.S....

USDA FoodData Central API

The USDA FoodData Central (FDC) API provides access to an integrated data system containing extended nutritional and food component data for thousands of foods. Data types include Foundation Foods,...

USDA FoodData Central API

The FoodData Central API provides REST access to FoodData Central (FDC). It is intended primarily to assist application developers wishing to incorporate nutrient data into their applications or we...

USDA FoodData Central API

The FoodData Central API provides REST access to FoodData Central (FDC), the USDA's integrated data system that provides expanded nutrient profile data and links to related agricultural and experim...

USDA FoodData Central API

REST API providing access to the FoodData Central (FDC) nutrition database, covering over 250,000 food items with detailed nutrient data. Intended for developers building nutrition tracking and foo...

USDA NASS Quick Stats API

The USDA NASS Quick Stats API provides direct access to the National Agricultural Statistics Service's official published aggregate estimates related to U.S. agricultural production. Returns data f...

USDA NASS QuickStats API

The QuickStats API provides direct programmatic access to the statistical information contained in the NASS Quick Stats database, covering official published aggregate estimates related to U.S. agr...

USDA NRCS AWDB Water and Climate REST API

The USDA Natural Resources Conservation Service (NRCS) Air and Water Database (AWDB) REST API provides access to snow, water, and climate data from SNOTEL (SNOw TELemetry) stations and Soil Climate...

USGS Earthquake Catalog API

The USGS Earthquake Catalog API implements the FDSN Event Web Service Specification, providing real-time and historical access to global earthquake data from the USGS National Earthquake Informatio...

USGS Earthquake Hazards Program API

FDSN-compatible earthquake catalog API returning GeoJSON FeatureCollections for queries by time, magnitude, location, and depth.

USGS OGC Continuous Values API

Next-generation OGC API compliant service (api.waterdata.usgs.gov) providing real-time continuous sensor measurements including streamflow, gage height, and hundreds of other parameters. Implements...

USGS OGC Daily Values API

OGC API compliant service for historical summarized daily water data with derived statistics. Part of the next-generation USGS Water Data API platform replacing the legacy WaterServices (slated for...

USGS OGC Monitoring Locations API

OGC API compliant service providing location details, geographic data, and site identifiers for USGS monitoring stations. Returns rich metadata including site type, drainage area, altitude, aquifer...

USGS Water Data APIs

Modernized USGS Water Data APIs providing real-time and historical water resource data including continuous sensor measurements, daily values, and water quality information from thousands of monito...

USGS Water Data APIs

The USGS Water Data OGC APIs provide standardized access to USGS water monitoring data including continuous streamflow, daily values, groundwater levels, discrete water quality measurements, and mo...

USGS Water Data OGC API

The USGS Water Data OGC APIs provide OGC-compliant interfaces to USGS water data including real-time continuous measurements from automated sensor networks, daily summary values, field measurements...

USGS Water Services API

Real-time and historical surface-water, groundwater, and water-quality data via the National Water Information System.

USOS API (University of Warsaw)

The University of Warsaw installation of the USOS API, a REST-like protocol providing access to the university's academic database. It exposes 60+ documented services covering courses, grades, exam...

USPS Addresses API

Validates and corrects address information to USPS specifications, eliminating errors and improving package delivery. Supports full address standardization, city and state lookup by ZIP Code, and Z...

USPS Carrier Pickup API

Enables free carrier pickup scheduling for next-day service, Monday through Saturday, excluding federal holidays. Supports creating, retrieving, updating, and canceling pickup requests at residenti...

USPS Domestic Prices API

Provides postage pricing for domestic USPS shipments based on origin and destination ZIP Codes, weight, dimensions, and mail class. Supports base rate lookups, extra service rates (insurance, signa...

USPS Tracking API

Returns tracking status and related details for a given USPS package, including scan events with date, time, and location. Supports single and batch package tracking. Version 3.2 includes enhanced ...

USPTO Bulk Data Storage System (BDSS) API

ODP Bulk Data API exposing the Bulk Data Storage System (BDSS) — SearchBulkProducts and GetBulkProduct operations for downloading patent and trademark bulk datasets (bibliographic, assignment, clas...

USPTO Enriched Citation API

The USPTO Enriched Citation API provides enriched citation reference metadata for patent documents including non-patent literature and patent citations. Returns structured citation data for patent ...

USPTO Office Action APIs

Family of 8 endpoints covering structured Office Action data — Text Retrieval, Citations, Rejections, and Enriched Citations. The Enriched Citation API uses machine-learning information extraction ...

USPTO Office Action Text Retrieval API

The USPTO Office Action Text Retrieval API provides access to the full text of USPTO patent examiner office actions. Returns rejection text, claims analysis, and prior art citations for patent appl...

USPTO Open Data Portal API

The USPTO Open Data Portal (ODP) API allows public users to discover, search, and extract USPTO patent, trademark, PTAB trial, petition decision, and bulk dataset information at no cost. Requires a...

USPTO Patent & Trademark API

The United States Patent and Trademark Office (USPTO) provides REST APIs for patent search, PTAB trial proceedings, trademark status lookup, and patent citation data. APIs are hosted at developer.u...

USPTO Patent File Wrapper API

Core USPTO Open Data Portal (ODP) API for searching and retrieving U.S. patent application file wrappers — bibliographic data, assignment history, prosecution documents (office actions, responses, ...

USPTO Patent Trial and Appeal Board (PTAB) API

The USPTO PTAB API provides access to Patent Trial and Appeal Board proceedings data including inter partes reviews (IPR), post-grant reviews (PGR), and covered business method (CBM) reviews. Retur...

USPTO Patent Trial and Appeal Board (PTAB) API

Patent Trial and Appeal Board (PTAB) API v3 hosted on the Open Data Portal. 19 endpoints covering trial proceedings (IPR, PGR, CBM, derivation), trial decisions (institution, final written, termina...

USPTO PatentsView API

USPTO research-oriented patent data API with inventor disambiguation, assignee, location, CPC/USPC classification, and citation endpoints. The database integrates the best available tools for inven...

USPTO Trademark Search API Endpoints

The core API for accessing USPTO trademark data, offering various search and retrieval functionalities including keyword search, availability check, serial number lookups, owner searches, and datab...

USPTO Trademark Status and Document Retrieval (TSDR) API

The USPTO Trademark Status and Document Retrieval (TSDR) API enables programmatic access to trademark case status, filing history, and associated documents. Returns status information for trademark...

USPTO Trademark Status and Document Retrieval (TSDR) API

Trademark Status & Document Retrieval (TSDR) Data API — 24 endpoints (hosted on a separate server with a separate API key from the rest of ODP) for retrieving trademark case status, documents, and ...

USPTO Trademark Status and Document Retrieval API

The Trademark Status and Document Retrieval (TSDR) REST API provides programmatic access to trademark case status, documents, case images, and related metadata. Requires an API key for bulk data do...

UUID API

Generate unique identifiers in multiple formats including UUID v4, NanoID, short NanoID, hex, base64, numeric, and timestamp-based IDs. Supports batch generation of up to 100 IDs per request and an...

UWA Profiles and Research Repository (Pure CRIS Web Service)

Elsevier Pure CRIS Web Service backing the UWA Profiles and Research Repository, exposing research outputs, persons, organisations, projects, activities, and applications as REST resources. Access ...

Uber Direct (Deliveries) API

Uber Direct exposes Uber's courier network as a delivery-as-a-service API. Merchants request a delivery (or quote), Uber dispatches a courier, and the merchant receives webhook notifications throug...

Uber Direct API

The Uber Direct API allows merchants to leverage Uber's courier network to deliver their orders. It supports on-demand delivery creation, courier tracking, refunds, and location management. Webhook...

Uber Drivers API

The Uber Drivers API allows partners to access driver profile information, payment history, and trip records. It provides access to driver earnings, completed trips, and partner program data via OA...

Uber Eats API

The Uber Eats Marketplace API enables partners to programmatically manage stores, menus, and orders on the Uber Eats platform. It supports real-time menu synchronization, order processing, store op...

Uber Eats Store API

The Store API suite manages store status (online/offline), business hours, holiday schedules, and store configuration on Uber Eats. It lets POS and marketplace integrations programmatically pause a...

Uber Riders API

The Uber Riders API enables applications to interact with the Uber platform on behalf of riders. It allows requesting rides, getting product listings, price and time estimates, viewing trip history...

Uber Vouchers API

The Uber Vouchers API allows businesses to create and manage voucher programs and codes for rides and meals. It supports program creation, code generation, bulk distribution, guest management, and ...

Uber for Business API

The Uber for Business API enables organizations to automate workflows within their enterprise Uber accounts. Provides access to trip invoices, receipts, and business travel data for expense managem...

Ubuntu CVE API

API for Ubuntu security notices and CVE vulnerability information, enabling programmatic queries of the Ubuntu CVE database including affected packages and patch status across Ubuntu releases.

UdeM Borealis Dataverse

Université de Montréal's collection within Borealis, the Canadian Dataverse Repository, for depositing, sharing, and discovering research data. Dataverse provides a documented native REST API for d...

UiPath Automation Hub API

The UiPath Automation Hub API provides access to the automation pipeline and idea management platform, allowing developers to programmatically create, retrieve, and manage automation ideas, project...

UiPath Data Service API

The UiPath Data Service API provides programmatic access to structured data storage within the UiPath Platform. Developers can create, read, update, and delete records in custom data entities, enab...

UiPath Document Understanding API

The UiPath Document Understanding API enables intelligent document processing using machine learning and AI models. Developers can submit documents for digitization, classification, and data extrac...

UiPath Orchestrator API

The UiPath Orchestrator API provides programmatic access to the core automation management platform, enabling developers to manage robots, jobs, processes, queues, assets, schedules, and more. Buil...

UiPath Platform Management API

The UiPath Platform Management API provides administrative access to organization and tenant management capabilities, including user management, license management, and account configuration. Used ...

UiPath Test Manager API

The UiPath Test Manager API enables programmatic interaction with the automated testing platform, allowing CI/CD pipelines and external tools to create test sets, execute tests, and retrieve test r...

Umami API

The Umami API provides programmatic access to website analytics data including pageviews, sessions, events, and metrics, allowing developers to collect tracking data and retrieve analytics reports....

UniFi Site Manager API

The UniFi Site Manager API is Ubiquiti's official cloud API at api.ui.com for programmatic access to UniFi deployments across all sites linked to a UI account. Endpoints expose hosts (UniFi OS cons...

UniProtKB REST API

Search and retrieve protein entries from UniProtKB, which integrates Swiss-Prot (manually reviewed) and TrEMBL (computationally annotated) databases. Supports full-text and field-specific queries, ...

Uniblock Direct API

The Uniblock Direct API gives developers access to provider-specific endpoints exactly as offered by upstream blockchain data providers. This is intended for use cases where a specific method is no...

Uniblock JSON-RPC API

The Uniblock JSON-RPC API provides a single endpoint for standard JSON-RPC calls across hundreds of blockchain networks. Rather than managing individual node provider connections for each chain, de...

Uniblock Unified API

The Uniblock Unified API provides a single standardized interface for interacting with multiple blockchain networks and data providers. It offers higher-level endpoints for common data needs includ...

Unified.to ATS API

Unified ATS API providing real-time access to recruiting data including jobs, candidates, applications, interviews, and hiring decisions across 73 integrations.

Unified.to Accounting API

Unified accounting API providing real-time access to accounting data across 41 integrations including QuickBooks, Xero, FreshBooks, and more.

Unified.to Advertising API

Unified advertising API providing real-time access to advertising platform data across 13 integrations.

Unified.to Assessment API

Unified assessment API providing real-time access to assessment and evaluation data across 6 integrations.

Unified.to CRM API

Unified CRM API providing real-time access to customer relationship data including contacts, companies, deals, pipelines, leads, and activities across 47 integrations.

Unified.to Calendar & Meetings API

Unified calendar and meetings API providing real-time access to calendar and scheduling data across 27 integrations.

Unified.to Call Center API

Unified call center API providing real-time access to calls, contacts, recordings, and voice activity data across 16 integrations.

Unified.to E-Commerce API

Unified e-commerce API providing real-time access to e-commerce data across 30 integrations.

Unified.to HR & Directory API

Unified HR and directory API providing real-time access to HR, payroll, and employee directory data across 223 integrations.

Unified.to Messaging API

Unified messaging API providing real-time access to messaging and chat data across 17 integrations.

Unified.to Payments API

Unified payments API providing real-time access to transaction, refund, payout, and subscription data across 16 integrations.

Unified.to Ticketing API

Unified ticketing API providing real-time access to support ticket and issue resolution data across 7 integrations.

Unify Universal API

The Unify Universal API provides a single REST endpoint with Bearer token authentication for routing LLM requests to 100+ model providers including OpenAI, Anthropic, Mistral, Together AI, Replicat...

Union FlyteAdmin Executions API

Launch, relaunch, recover, list, get, terminate, and inspect Workflow Executions, plus their Node Executions and Task Executions and associated I/O data. HTTP/JSON gateway under /api/v1/executions,...

Union FlyteAdmin Launch Plans API

Create, list, retrieve, and activate/deactivate Launch Plans - the bindable, schedulable entry points that wrap a workflow with inputs, schedules, and notifications. HTTP/JSON gateway under /api/v1...

Union FlyteAdmin Projects API

Create, update, list, and get Projects and the Domains scoped within them - the top-level logical grouping for workflows, tasks, launch plans, and executions. gRPC (FlyteIDL AdminService) with an H...

Union FlyteAdmin Tasks API

Register, list, and retrieve versioned Tasks - the strongly-typed units of work that compose workflows. gRPC AdminService with an HTTP/JSON gateway under /api/v1/tasks and /api/v1/task_ids.

Union FlyteAdmin Workflows API

Register, list, and retrieve versioned Workflows - the compiled DAGs of tasks. Served over gRPC with an HTTP/JSON gateway under /api/v1/workflows and /api/v1/workflow_ids.

Union Serverless

The fully-managed, pay-as-you-go Union control plane and compute. Same FlyteAdmin control-plane surface (gRPC + HTTP/JSON gateway) accessed through the union CLI and Union SDK, billed per action an...

Uniswap Trading API

The Uniswap Trading API provides REST endpoints for token swaps, bridges, liquidity management, and execution planning across 25+ blockchain networks. It supports swap quoting, gasless UniswapX ord...

United Airlines NDC API

United Airlines NDC (New Distribution Capability) API enables travel agencies, online booking tools, and corporate travel platforms to search, book, and service United flights with full access to c...

United Rentals Total Control Integration API

United Rentals provides a broad selection of APIs to simplify the procure-to-pay lifecycle for equipment rentals. The Total Control platform supports system integration via EDI, cXML, JSON, spreads...

UnitedHealth Group Optum API

The UnitedHealth Group interoperability APIs provide FHIR R4-compliant access to healthcare data including patient records, claims history, provider directories, and formulary information in compli...

UnitedHealthcare Interoperability API

The UnitedHealthcare Interoperability APIs provide FHIR R4-compliant access to patient health data in compliance with CMS Interoperability and Patient Access final rule (CMS-9115-F). Includes Patie...

UnitedHealthcare Provider API

The UnitedHealthcare Provider API provides real-time access to eligibility verification, claims management, prior authorization, and provider directory services through the UHC API Marketplace. Ena...

Unity Access API

The Access API provides endpoints for managing access control, resource policies, and permissions that control who can access, modify, or delete game data and resources across Unity Gaming Services.

Unity Analytics API

The Analytics REST API provides endpoints for tracking player behavior, recording custom events, and querying analytics data for Unity projects. Supports custom event ingestion, funnel analysis, an...

Unity Asset Manager API

The Asset Manager REST API provides endpoints for uploading, managing, transforming, sharing, and accessing complex real-time 3D assets for use across Unity projects and workflows.

Unity Build Automation API

The Build Automation REST API enables automating and integrating continuous integration builds into custom workflows, providing insight into build history and webhook callbacks for build events acr...

Unity Catalog

Unity Catalog is an open-source, multi-modal catalog for data and AI that supports Apache Iceberg REST Catalog API, Apache Hive Metastore (HMS) API, and Delta Sharing. It provides unified governanc...

Unity Cloud Code API

The Cloud Code API enables running serverless game logic in the cloud, allowing you to create, manage, and execute scripts and modules without maintaining dedicated servers. Supports JavaScript and...

Unity Cloud Content Delivery API

The Cloud Content Delivery (CCD) REST API enables building and releasing game updates with powerful asset management and content delivery through the cloud. Supports buckets, entries, releases, and...

Unity Cloud Save API

The Cloud Save REST API provides endpoints for persisting player data and game state in the cloud, with both a Player API for client-side actions and an Admin API for server-side management. Suppor...

Unity Distributed Authority API

The Distributed Authority API enables decentralized multiplayer networking where game clients share responsibility for owning and tracking the state of networked objects, reducing server load and l...

Unity Economy API

The Economy REST API allows you to manage in-game economies including virtual currencies, inventory items, purchases, and player balances through both admin and player endpoints. Supports currencie...

Unity Friends API

The Friends API helps players connect with others to add a social experience to games, providing endpoints for managing friend lists, friend requests, incoming requests, and blocking players.

Unity Leaderboards API

The Leaderboards REST API provides a Player API for submitting and fetching scores and an Admin API for creating, updating, and managing leaderboard configurations. Supports bucket leaderboards, sc...

Unity Lobby API

The Lobby REST API provides endpoints for creating, managing, and querying multiplayer game lobbies, allowing players to group together before joining a game session. Supports public and private lo...

Unity Matchmaker API

The Matchmaker REST API provides endpoints for creating and managing matchmaking tickets, defining matchmaking rules, and configuring match pools and queues for skill-based and attribute-based play...

Unity Moderation API

The Moderation API provides endpoints for actioning incidents, reviewing evidence, and monitoring community health scores to manage player behavior and content moderation across Unity Gaming Services.

Unity Monetize API

The Unity Monetize API (formerly Unity Ads) provides REST endpoints for managing ad placements, revenue reporting, and monetization configuration for mobile and desktop games.

Unity Multiplay Game Server Hosting API

The Multiplay Game Server Hosting REST API provides Admin API endpoints for resource configuration and a Game Server Lifecycle API for managing the lifecycle of dedicated game servers in cloud, bar...

Unity Player Authentication API

The Player Authentication REST API verifies player identity and manages authentication workflows, providing endpoints for sign-in, sign-up, token management, and linking external identity providers...

Unity Push Notifications API

The Push Notifications API allows scheduling messages to players on iOS and Android mobile devices when they are not actively playing, with support for immediate, scheduled, and recurring notificat...

Unity Relay API

The Relay REST API provides the Relay Allocations API and QoS Discovery API, enabling peer-to-peer multiplayer connectivity without dedicated game servers through secure relay servers.

Unity Remote Config API

The Remote Config REST API enables launching new features, testing functionality, and modifying game configurations without requiring app updates, with both a Runtime API and an Admin API for manag...

Unity SCIM API

The SCIM v2 API provides a standardized protocol for automating user and group provisioning between your Identity Provider and Unity Cloud, streamlining cross-domain identity management and user li...

Unity Safe Text API

The Safe Text API provides AI-powered text chat moderation, filtering inappropriate content and generating evidence reports for review through the Unity Moderation Platform.

Unity Scheduler API

The Scheduler API enables scheduling events to occur at a set or recurring moment in time, which can be used to trigger Cloud Code execution on a defined schedule using cron expressions.

Unity Triggers API

The Triggers API monitors a stream of internal events emitted by Unity Gaming Services and the Scheduler service, enabling Cloud Code scripts and modules to run automatically based on event conditi...

Unity Version Control API

Unity Version Control (previously Plastic SCM) provides REST API access for managing version-controlled repositories, branches, changesets, and merge requests in both cloud and on-premise deployments.

University of Alberta Research Data (Borealis Dataverse) API

The University of Alberta research data collection is hosted on Borealis, the Canadian Dataverse Repository (operated by Scholars Portal / Ontario Council of University Libraries). The underlying D...

University of Auckland Figshare Research Repository API

Figshare-hosted institutional research data repository for the University of Auckland. The Figshare v2 REST API exposes public articles, datasets, collections, and projects; University of Auckland ...

University of Rochester Research Repository (URRR) - Figshare API

The University of Rochester Research Repository (URRR) is the institution's official research and data repository, hosted on the Figshare platform at rochester.figshare.com. Figshare provides a pub...

University of Sussex Research Repository (Figshare)

The University of Sussex research repository is hosted on Figshare and contains publications, research data, theses, and other research artefacts. The repository portal is publicly browsable and th...

University of Waterloo Open Data API (v3)

Public REST API powered by the University of Waterloo Open Data Initiative, providing access to authoritative, approved datasets covering academic, campus, and student information (such as subjects...

Unkey API

Unkey's REST API providing programmatic access to all platform resources: API namespace management, API key lifecycle (create, verify, update, reroll, delete), identity management, permissions and ...

Unleash Admin API

Comprehensive REST API providing full programmatic control over Unleash resources including feature flags, projects, environments, users, API tokens, strategies, segments, integrations (addons), ev...

Unleash Client API

API endpoint consumed by backend Unleash SDKs to fetch complete feature flag configurations including all activation strategies. Supports server-side flag evaluation with zero additional latency af...

Unleash Frontend API

API endpoint consumed by frontend/client-side SDKs. Returns only the evaluated state (enabled/disabled) of feature flags for a given Unleash Context, without exposing strategy configuration. Safe f...

Unpaywall API

Free REST API providing open access status and full-text links for 120M+ scholarly articles. Look up any article by DOI to get its OA status, best open access location (publisher or repository), li...

Unsplash API

REST API providing access to Unsplash's full photo library with endpoints for photo search, random photos, editorial feed browsing, photo detail and statistics, collection management, topic browsin...

Unstoppable Domains Partner API

RESTful Partner API v3 for Web3 domain distribution and management. Enables searching, registering, and managing domains in custody wallets and self-custody wallets on Polygon and Base blockchains....

Unstoppable Domains Reseller API

RESTful API for resellers offering traditional DNS domain registration and management alongside Web3 domains. Supports domain search with pricing and availability, registration workflows, DNS recor...

Unstoppable Domains Resolution API

HTTP-based REST API for resolving Web3 domain names to cryptocurrency addresses and records. Supports 310+ cryptocurrencies, reverse lookups, batch queries, TLD enumeration, and RPC proxy for Ether...

Unstoppable Domains User API

MCP-compatible REST API for programmatic user account operations including domain search and purchase, portfolio management, DNS record configuration (A, AAAA, CNAME, MX, TXT, NS, SRV, CAA), market...

Unstructured Partition Endpoint

The Unstructured Partition Endpoint is the legacy serverless API for processing individual files on demand. It supports PDFs, images, DOCX, HTML, and dozens of other formats, returning structured e...

Unstructured Platform API

The Unstructured Platform API provides programmatic access to workflow operations including source connectors, destination connectors, workflows, and jobs. It enables headless, push-style data tran...

Unum HR Connect API

The Unum HR Connect API provides a secure, real-time connection between Unum benefits and major HR platforms including Workday, ADP, and UKG. It automates eligibility checks, evidence of insurabili...

UpKeep API

The UpKeep API provides programmatic access to the UpKeep CMMS platform, enabling management of work orders, assets, locations, preventive maintenance schedules, parts inventory, purchase orders, m...

UpLead API

REST API for accessing UpLead's B2B contact and company database. Supports company search and enrichment, person search and enrichment, combined person-and-company lookup, prospector search for dis...

UpTrain Evaluations API

Runs evaluations (POST /evaluate) on supplied LLM input/output/context rows against a list of named checks such as context_relevance, factual_accuracy, response_completeness and response_concisenes...

UpTrain Log and Evaluate API

Logs evaluation data under a named project and evaluates it in one call (POST /log_and_evaluate), persisting results so they appear on the managed UpTrain dashboard with real-time monitoring. The s...

UpTrain Root Cause Analysis API

Performs root cause analysis (POST /perform_root_cause_analysis) on failing RAG or LLM responses, classifying why a response was poor - e.g. incomplete context, poor retrieval, or hallucination - t...

UpTrain Runs and Datasets API

Manages evaluation datasets, checksets (reusable bundles of checks), and runs that pair a dataset with a checkset - create a run (POST /run), poll its status (GET /run/{run_id}) and download its re...

Upbit Exchange API

The Upbit Exchange API provides authenticated access to account management, order execution, and fund operations on the Upbit cryptocurrency exchange. Developers can query account balances and asse...

Upbit Quotation API

The Upbit Quotation API provides public, unauthenticated access to real-time and historical market data across all trading pairs on the Upbit exchange. Developers can retrieve current ticker prices...

Upbound API

The Upbound API provides programmatic management of the Upbound universal cloud platform, including organizations, teams, managed Crossplane control planes, package repositories, and robot accounts...

Upload-Post Analytics API

Retrieves per-profile performance metrics, aggregated total impressions across platforms, and per-post analytics by request_id or platform post ID.

Upload-Post Profiles and Users API

Creates, lists, and deletes managed user profiles, generates single-use JWT URLs for end users to link their own social accounts, and validates those tokens.

Upload-Post Upload Photos API

Publishes single photos and image carousels to Instagram, LinkedIn, Facebook, X (Twitter), TikTok, Threads, Pinterest, and Bluesky using multipart photos[] uploads with title and description fields.

Upload-Post Upload Text API

Creates and distributes text-only posts across supported social platforms such as X (Twitter), Threads, LinkedIn, Facebook, and Bluesky.

Upload-Post Upload Video API

Publishes video posts to TikTok, Instagram, YouTube, LinkedIn, Facebook, X (Twitter), Threads, Pinterest, Bluesky, Reddit, Discord, and Telegram via a single multipart upload, with synchronous and ...

Uploadcare CDN & Image Transformation API

URL-based CDN API for on-the-fly image transformations including resizing, cropping, format conversion, compression, and effects. Transformed images are cached on the global Smart CDN network and n...

Uploadcare REST API

Low-level REST API providing access to Uploadcare platform features including managing files, metadata, groups, add-ons, projects, webhooks, file conversions, and video encoding. All requests must ...

Uploadcare Upload API

Upload API for direct binary file uploads, multipart uploads for large files (up to 5 TB), URL-based uploads, UUID-based uploads, and file group creation. Supports direct uploads from browser or se...

Uptime.com Checks & Monitors API

Create, list, retrieve, update, pause, resume, and delete monitoring checks including HTTP(S), API/transaction, DNS, TCP, SMTP, SSH, ping, blacklist, malware, and group checks, plus probe-server lo...

Uptime.com Contacts & Integrations API

Manage contact groups (email, SMS, voice, on-call schedules) and notification integrations (Slack, PagerDuty, Opsgenie, webhooks, and more) used to route check and outage alerts.

Uptime.com Outages API

List and retrieve detected outage records produced by checks, including start/end timestamps, duration, the originating check, and resolution state.

Uptime.com SLA Reports API

Create, list, retrieve, update, and delete SLA reports that summarize uptime, response time, and outage performance across selected checks and tags over a default or custom reporting period.

Uptime.com Status Pages API

Create, list, retrieve, update, and delete public and private status pages along with their components and incidents for communicating service health to users.

Uptime.com Tags API

Create, list, retrieve, update, and delete color-coded check tags used to group and filter checks, SLA reports, and status pages across the account.

Uptrace API

The Uptrace REST API provides programmatic management of projects, chart annotations for deployment tracking, alert rules using PromQL, dashboard management, and Prometheus Remote Write for metrics...

Upvest Investment API

The Upvest Investment API provides a unified interface for building embedded investment experiences. It supports placing and managing orders, creating portfolios, configuring savings plans, handlin...

Upwork GraphQL API

The primary Upwork API surface, providing GraphQL queries and mutations for job search, profile access, contract management, and messaging. Authentication uses OAuth 2.0 authorization code flow. Th...

Upwork REST API

The legacy REST API surface for Upwork, covering job search, contracts, reporting, organization management, and freelancer profiles. OAuth 2.0 authentication is required. Many endpoints have been m...

Urban Outfitters Affiliate Program

Urban Outfitters affiliate program managed through Rakuten Advertising (formerly LinkShare) network. Provides affiliate tracking links, banner ads, marketing copy, and product data feeds for affili...

Urban Outfitters Marketplace (UO MRKT) Integration

Urban Outfitters operates a curated third-party marketplace called UO MRKT for independent lifestyle and fashion brands. Seller integration is managed through EDI and third-party connectors such as...

UrbanPiper Catalog & Menu API

Create and update the full restaurant catalogue (categories, items, option groups, options, taxes and charges) for a brand and push it to the connected aggregator platforms, with flush operations f...

UrbanPiper Item Availability API

Toggle stores on and off and mark items and options in or out of stock in real time during operational hours, including marking items out-of-stock on an active order, with availability changes prop...

UrbanPiper Orders API

Receive aggregator orders relayed to the POS via webhook and push order status updates (Acknowledged, Food Ready, Dispatched, Completed, Cancelled) back to UrbanPiper, including self-delivery rider...

UrbanPiper Stores & Locations API

Create and update store/location records and map each location to a brand using the POS/ERP reference ID, so that menus and orders can be synced per location across aggregator platforms.

UrbanPiper Webhooks API

Register and manage webhook endpoints that UrbanPiper calls to relay orders, item-action callbacks and rider status updates to the POS, with an X-UPR-Biz-Id header identifying the brand and a webho...

Urjanet Credentials & Connections API

Submit and manage end-user utility account login credentials so the platform can connect to utility providers and begin collecting data, and look up supported utility providers.

Urjanet Meters API

List and manage utility meters and service points associated with connected accounts and sites.

Urjanet Statements & Bills API

Retrieve collected utility statements and bill documents, including billing periods, charges, and source bill PDFs, organized by account and site.

Urjanet Usage Data API

Access normalized consumption and high-resolution interval (usage) data captured from utility meters and statements across electricity, gas, water, and other commodities.

Urjanet Webhooks API

Configure webhook notifications for important platform events, such as new data becoming available or a credential status change that requires action.

Urlbox Asynchronous Render API

POST /render/async accepts the same render options and returns immediately with a renderId and statusUrl (201 Created); the render is processed in the background and results are retrieved by pollin...

Urlbox Render Links API

GET /{api_key}/{token}/{format} returns a render directly from a stateless, cacheable URL, where token is an HMAC-SHA256 signature of the URL-encoded options query string generated server-side with...

Urlbox Render Status API

GET /render/{renderId} polls the status of an asynchronous render, returning created, retrying, succeeded, failed, or not-found, along with the renderUrl and size once the render has succeeded.

Urlbox Synchronous Render API

POST /render/sync renders a screenshot, PDF, or video of a URL or HTML and blocks until the asset is ready, returning a temporary renderUrl plus size, renderTime, queueTime, and bandwidth metrics.

Urlbox Usage API

Reports renders used, allowed, and remaining for the current billing period; usage is also surfaced on every render response via x-renders-used, x-renders-allowed, and x-renders-remaining headers.

Urlbox Webhooks API

Async renders configured with a webhook_url receive a POST callback carrying render.succeeded or render.failed events with the result payload, verified via the X-Urlbox-Signature HMAC-SHA256 header.

Usage Analytics Read API

Usage Analytics Read API

Usage Analytics Write API

The [Coveo Cloud](https://docs.coveo.com/en/186/) [Usage Analytics](https://docs.coveo.com/en/182/) Write API service allows you to log all end-user interactions with search interfaces and optional...

User Agent

Parse a User-Agent string into browser, engine, device, and operating system attributes. Supports single (GET /v3/user-agent — header-based, or POST /v3/user-agent — body-based) and bulk lookup (PO...

User Interface API

Access record data, layouts, list views, and navigation items for building custom user interfaces. Powers Lightning web components in Experience Cloud sites with metadata-driven UI rendering.

User-Controlled Wallets

Create wallets that end users control via PIN, biometrics, or social recovery while Circle handles the cryptography. Used to embed non-custodial USDC wallets directly inside consumer apps.

UserGems API

The UserGems outbound REST API lets customers programmatically add and remove contacts UserGems should track for job changes, add and remove target accounts to source prospects against, and submit ...

UserVoice Admin API

The UserVoice Admin API v2 provides a fast and easy way of working with your feedback data, enabling you to build client applications and custom integrations for administrative operations including...

Usercentrics App CMP SDK

Mobile and TV consent management SDK with native iOS (11+), tvOS (11+), Android (API 16+), AndroidTV, Unity (2018.4+), Flutter (1.20+), and React Native (0.65+) support. Comprises UsercentricsCore ...

Usercentrics Web CMP (V3)

Browser-side consent management platform for websites. Exposes the UC_UI JavaScript API, IAB __tcfapi (TCF 2.3), IAB __gpp (GPP), dataLayer events, and Google Consent Mode v2 / Microsoft UET Consen...

Userflow REST API

The Userflow REST API allows back-end applications to synchronize user data, track events, and manage groups or companies within the Userflow platform. It provides endpoints for creating, updating,...

Userpilot API

Aggregate Userpilot API spec covering identification, tracking, bulk operations, imports/exports, and lookups.

Userpilot Analytics Export API (appex)

Userpilot Analytics Export API for triggering and retrieving export jobs and looking up resources (segments, flows, surveys, banners, checklists, properties).

Userpilot Realtime API (analytex)

Userpilot Realtime API for identifying users and companies and tracking events in real time. Hosted at analytex.userpilot.io with EU at analytex-eu.userpilot.io.

Users API

The Users API allows you to query and modify the state of your Connected Users and their integrations. Endpoints cover retrieving user info, setting metadata, listing and disconnecting integrations...

Userset Details API

Returns the full contents of a single Rijksstudio set including the owner profile, the ordered list of set items (each linking to a Collection object and image), and crop metadata for cover images.

Usersets API

Lists user-generated sets ("Rijksstudio sets") of objects curated by Rijksstudio members. Each set has an owner, name, slug, object count, and created/updated timestamps. Useful for surfacing commu...

Utility Data Integration APIs

Third-party platforms that authenticate against retail electric, gas, and water utilities to retrieve customer meter, interval, and billing data on behalf of a consumer or business. These APIs coll...

UtilityAPI

UtilityAPI provides a REST API for accessing utility data including meters, bills, intervals, authorizations, and webhook events. Supports Green Button standard for energy data sharing.

UvA Library Linked Open Data API (Triply)

REST API over the University of Amsterdam Library's Linked Open Data datasets (books, catalogue, images, letters, maps, audio, video, music, archaeological objects, and more), served on the Triply ...

umd.io API

umd.io is a student-run open-source REST API for University of Maryland data. It is not an official university service. The v1 API exposes endpoints for courses, course sections, semesters, departm...