openapi: 3.2.0
info:
  title: iwant.fyi Agent Agents API
  description: Reference implementation of the iwant.fyi demand-side protocol v1.0. AI agents express structured purchase intent and receive matched supply across multiple sources. See https://iwant.fyi/protocol/v1 for the spec; the HTTP fallback under /v1/* mirrors the MCP demand.* tools.
  version: 0.20.3
  contact:
    email: hi@iwant.fyi
    url: https://iwant.fyi
  x-implements:
    specification: iwant.fyi demand-side protocol v1.0
    specUrl: https://iwant.fyi/protocol/v1
    conformance: v1.0+httpFallback
servers:
- url: https://iwant.fyi/api
  description: Production
security:
- AgentApiKey: []
tags:
- name: Agents
paths:
  /agents:
    post:
      operationId: registerAgent
      summary: Register a new agent
      description: Create an agent profile and get an API key. Requires human session auth (cookie). API key is shown once.
      security: []
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              required:
              - name
              properties:
                name:
                  type: string
                  minLength: 3
                  maxLength: 100
                description:
                  type: string
                capabilities:
                  type: string
      responses:
        '201':
          description: Agent created with API key
          content:
            application/json:
              schema:
                type: object
                properties:
                  agent:
                    $ref: '#/components/schemas/AgentProfile'
                  apiKey:
                    type: string
                    description: Plaintext API key -- shown once only
                  notice:
                    type: string
      tags:
      - Agents
    get:
      operationId: listAgents
      summary: List user's agents
      responses:
        '200':
          description: List of agents owned by authenticated user
      tags:
      - Agents
  /agents/{id}:
    get:
      operationId: getAgent
      summary: Get public agent profile
      security: []
      parameters:
      - name: id
        in: path
        required: true
        schema:
          type: string
          format: uuid
      responses:
        '200':
          description: Agent profile
          content:
            application/json:
              schema:
                type: object
                properties:
                  agent:
                    $ref: '#/components/schemas/AgentProfile'
        '404':
          description: Agent not found
      tags:
      - Agents
components:
  schemas:
    AgentProfile:
      type: object
      properties:
        id:
          type: string
          format: uuid
        owner_user_id:
          type: string
          format: uuid
        name:
          type: string
        description:
          type: string
        capabilities:
          type: string
        trust_score:
          type: number
        trust_tier:
          type: string
          enum:
          - unverified
          - verified
          - trusted
          - preferred
        created_at:
          type: string
          format: date-time
        updated_at:
          type: string
          format: date-time
  securitySchemes:
    AgentApiKey:
      type: http
      scheme: bearer
      description: 'Agent API key (format: iwant_ak_...)'