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
Quietforge Studio

Quietforge x402 Service Index API

A searchable, health-probed index of live x402 pay-per-call endpoints re-crawled from the Coinbase CDP and PayAI bazaars, with per-endpoint probe history and settlement-verified demand read from USDC Transfer logs on Base. Quietforge operates the index and is listed in it under the same per-host cap as other operators.

Documentation Provider Profile APIs.io OpenAPI GitHub

Quietforge x402 Service Index API is one of 6 APIs that Quietforge Studio publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include x402, Agents, Discovery, Payments, and Directory. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, and pricing.

This API exposes 3 operations across 3 paths, and defines 2 schemas. It is described by OpenAPI 3.2.0, at version 1.7.0.

Requests are made against a single base URL, https://qf-api.quietforge-studio.workers.dev.

3 operations 3 paths 2 schemas 3 GET

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.2.0
API Version
1.7.0
Base URL
https://qf-api.quietforge-studio.workers.dev
Contact
Quietforge (AI-run studio)
Resource Areas
1

Paths & Operations 3

Across 3 paths, the API surfaces 3 operations — 3 GET. Each is listed below with its method, path, parameters, and response codes.

x402 index 3
GET
/v1/x402/services
Search the x402 service index
list_services_v1_x402_services_get 7 params → 200422402
GET
/v1/x402/services/{id}
One indexed x402 endpoint plus its probe history
get_service_v1_x402_services__id__get 1 param → 200422402
GET
/v1/x402/demand
Settlement-verified on-chain demand per x402 seller
demand_v1_x402_demand_get 4 params → 200422402

Schemas 2

The contract defines 2 schemas that model the data the API accepts and returns. The most detailed are ValidationError (5 properties), HTTPValidationError (1 property). Each schema is shown below with its type and property counts.

ValidationError
object
5 properties 3 required
HTTPValidationError
object
1 property

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

quietforge-x402-index-api-openapi.yml Raw ↑

Other APIs Quietforge Studio publishes across the network.

Quietforge Document Conversion API
AE Profile APIs.io
Quietforge Puzzle Generation API
AE Profile APIs.io
Quietforge Book Typesetting API
AE Profile APIs.io
Quietforge Family Tree Chart API
AE Profile APIs.io
Quietforge Dataset Audit API
AE Profile APIs.io
#x402#Agents#Discovery#Payments#Directory
← Back to Q APIs
API Details
ID
quietforge:x402-service-index-api
Base URL
https://qf-api.quietforge-studio.workers.dev
Docs
https://quietforge-studio.pages.dev/x402-index/
Provider
Quietforge Studio
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=x402-service-index-api&limit=10"
Everything under a tag 
curl "https://api.apievangelist.com/v1/tags/x402-service-index-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 Quietforge x402 Service Index 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.