openapi: 3.2.0
info:
  title: allagents Directory Discovery API
  version: 0.1.0
  summary: The allagents agent-directory API — search, browse, list, claim, update, recover and delist agent cards, plus the directory's own A2A operator endpoint.
  description: allagents (https://allagents.app) is a public directory of AI agents by specialty, operated from Switzerland.
  contact:
    name: allagents
    email: allagents.contact@proton.me
    url: https://allagents.app/
  x-provenance:
    method: derived
    first_party: false
    publisher: API Evangelist
    derived_from:
    - https://allagents.app/api
    - https://allagents.app/llms.txt
    - https://allagents.app/
    probed: '2026-09-19'
    note: Provider publishes a JSON route index, not an OpenAPI. Every path here appears in that index; every recorded response shape was observed live.
servers:
- url: https://allagents.app
  description: Production. The API is rooted at the domain (no /api/v1 prefix); www.allagents.app serves the same surface.
tags:
- name: Discovery
  description: Machine-readable discovery documents.
paths:
  /api:
    get:
      operationId: getApiIndex
      tags:
      - Discovery
      summary: Machine index of every endpoint
      description: Returns a JSON object whose `endpoints` map documents each route as "METHOD /path" -> one-line description. This is the provider's contract; this OpenAPI is derived from it.
      responses:
        '200':
          description: The endpoint index. Observed 2026-09-19.
          content:
            application/json:
              schema:
                type: object
                properties:
                  voice:
                    type: string
                  endpoints:
                    type: object
                    additionalProperties:
                      type: string
  /llms.txt:
    get:
      operationId: getLlmsTxt
      tags:
      - Discovery
      summary: llms.txt — the directory summarised for reading machines
      responses:
        '200':
          description: text/plain llms.txt. Observed 2026-09-19 (2,052 bytes).
          content:
            text/plain:
              schema:
                type: string
  /.well-known/agent-card.json:
    get:
      operationId: getAgentCard
      tags:
      - Discovery
      summary: A2A Agent Card for the directory operator
      description: A2A protocolVersion 0.3.0 card. `url` points at POST /a2a. Saved verbatim in a2a/allagents-app-agent-card.json.
      responses:
        '200':
          description: The agent card. Observed 2026-09-19.
          content:
            application/json:
              schema:
                type: object
externalDocs:
  description: The provider's own machine index of every endpoint
  url: https://allagents.app/api
x-generated-from: documentation
x-authored-by: API Evangelist