How AI is applied across API Evangelist and APIs.io. Read my AI disclosure →
API Evangelist API Evangelist
Discovery
Learnings
Guidance
Toolbox
Alignment
API Evangelist LLC
Discovery
Learnings
Guidance
Toolbox
Alignment
API Evangelist LLC

Need help?

Contact us
APIs.io

APIs.io APIs API

Index of HTTP application programming interfaces.

Documentation Provider Profile APIs.io OpenAPI GitHub

APIs.io APIs API is one of 18 APIs that APIs.io publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

This API exposes 2 JSON Schema definitions.

The published artifact set on APIs.io includes an OpenAPI specification, API documentation, authentication docs, rate-limit docs, a changelog, and 2 JSON Schemas.

This API exposes 5 operations across 5 paths, and defines 7 schemas. It is described by OpenAPI 3.2.0, at version 1.5.0.

Requests are made against a single base URL, https://apis.io/api/v1.

5 operations 5 paths 7 schemas 5 GET

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.2.0
API Version
1.5.0
Base URL
https://apis.io/api/v1
Authentication
API Key
Contact
API Evangelist
License
CC BY 4.0
Resource Areas
1

Authentication & Security 1

APIs.io APIs API declares 1 security scheme for authenticating requests. An API key is passed in the header as X-API-Key (ApiKeyAuth).

  • ApiKeyAuth — Send a plan key to be served above the free tier. Keyless callers get the free tier; a call that needs a paid tier answers 402 rather than refusing the connect…

Paths & Operations 5

Across 5 paths, the API surfaces 5 operations — 5 GET. Each is listed below with its method, path, parameters, and response codes.

APIs 5

Individual APIs, each owned by a provider and described by artifacts.

GET
/apis
List and filter APIs across the network.
listApis 15 params → 200400
GET
/apis/{aid}
Get one API by aid.
getApi 4 params → 200404
GET
/apis/{aid}/artifacts
One API's artifacts, grouped by type.
getApiArtifacts 2 params → 200404
GET
/apis/{aid}/similar
APIs similar to a given one.
findSimilarApis 2 params → 200404
GET
/openapis/{aid}
An API's primary OpenAPI.
getOpenapi 2 params → 200404

Schemas 7

The contract defines 7 schemas that model the data the API accepts and returns. The most detailed are Api (11 properties), Artifact (9 properties), Problem (6 properties), Meta (5 properties). Each schema is shown below with its type and property counts.

Band
string
Rating band derived from the composite score.
Problem
object
A Problem Details object per [RFC 9457](https://www.rfc-editor.org/rfc/rfc9457). Served as application/problem+json. Extension members (e.g. parameter) may be…
6 properties 3 required
ArtifactType
string
The type of an artifact. Open enumeration — the catalog carries ~50 types; the most common are listed here. Unknown values are allowed.
ApiList
object
A page of APIs
2 properties 2 required
Meta
object
Pagination and echoed-query metadata for collection responses.
5 properties 4 required
Api
object
An individual API owned by a provider.
11 properties 3 required
Artifact
object
A machine- or human-readable artifact attached to an API.
9 properties 2 required

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

apis-io-apis-api-openapi.yml Raw ↑

Other APIs APIs.io publishes across the network.

APIs.io Submit API
AE Profile APIs.io
APIs.io Areas API
AE Profile APIs.io
APIs.io Artifact Types API
AE Profile APIs.io
APIs.io Industries API
AE Profile APIs.io
APIs.io Insights API
AE Profile APIs.io
APIs.io Providers API
AE Profile APIs.io
APIs.io Ratings API
AE Profile APIs.io
APIs.io Regions API
AE Profile APIs.io
APIs.io Search API
AE Profile APIs.io
APIs.io Synthesis API
AE Profile APIs.io
APIs.io Tags API
AE Profile APIs.io
APIs.io Cohorts API
AE Profile APIs.io
← Back to A APIs
API Details
ID
apis-io:apis-io-apis-api
Base URL
https://apis.io/api/v1
Docs
https://apis.io/developer/overview/
Provider
APIs.io
APIs.io →  GitHub →
Explore more
All APIs Providers APIs.io Network
Work with this as data

Every API here is available over the API and to AI agents over MCP. APIs is not yet its own endpoint on the v1 API. Reach this content through network search and the tag graph, or the MCP server below.

Installs https://mcp.apievangelist.com/mcp in Claude, Cursor, VS Code and the rest — one button, every client.

MCP tools for apis
4 tools reach this content
  • search_api_evangelistSearch every content type across the network at once.
  • find_relatedThe shared-tag relevance graph — what else covers this.
  • get_tagEverything one tag labels, across all content types.
  • guide_topicPRO — a curated bundle for a topic: area, guidance, rules, papers, stories, services.
All tools & prompts
Call it yourself
curl for this page
Search the network for this 
curl "https://api.apievangelist.com/v1/search?q=apis-io-apis-api&limit=10"
Everything under a tag 
curl "https://api.apievangelist.com/v1/tags/apis-io-apis-api"

Discovery needs no key. Full bodies and the synthesis endpoints are Pro.

Get an API key

Free tier, no email required. Sign in with whichever identity you already have.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have. Your account

Where this information came from

This is an independent, third-party profile of APIs.io APIs API, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.

The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.

Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.

info@apievangelist.com · Read the full data-sourcing policy →
On a security or compliance team? Put security in the subject line and you will get a person, not a form — we will tell you exactly which public URLs this profile was built from.