openapi: 3.2.0
info:
  title: crvUSD Yield Optimizer A2a API
  description: 'Multi-chain crvUSD yield optimizer with A2A protocol support. Sources: scrvUSD, LlamaLend, Convex, StakeDAO. Chains: Ethereum, Arbitrum, Base, Optimism, Fraxtal. Supports Google A2A (Agent-to-Agent) protocol for agent interoperability.'
  version: 1.1.0
servers:
- url: /yo
tags:
- name: A2a
paths:
  /a2a:
    post:
      summary: A2A Endpoint
      description: 'A2A JSON-RPC 2.0 endpoint.


        Supports A2A protocol methods:

        - message/send: Send a task to the agent (natural language or structured)

        - tasks/get: Retrieve task status and results by ID

        - tasks/cancel: Cancel a running task


        Legacy aliases also supported: SendMessage, GetTask, CancelTask, ListTasks.


        Example - Natural language:

        ```json

        {

        "jsonrpc": "2.0",

        "method": "message/send",

        "params": {

        "message": {

        "role": "user",

        "parts": [{"type": "text", "text": "find best yield for 10000 crvUSD"}]

        }

        },

        "id": 1

        }

        ```


        Example - Explicit skill:

        ```json

        {

        "jsonrpc": "2.0",

        "method": "message/send",

        "params": {

        "skill": "best-yield",

        "message": {

        "role": "user",

        "parts": [{"type": "data", "data": {"chain": "ethereum", "top": 5}}]

        }

        },

        "id": 1

        }

        ```'
      operationId: a2a_endpoint_a2a_post
      parameters:
      - name: X-API-Key
        in: header
        required: false
        schema:
          anyOf:
          - type: string
          - type: 'null'
          title: X-Api-Key
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema: {}
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
      tags:
      - A2a
  /a2a/stream:
    post:
      summary: A2A Stream Endpoint
      description: 'A2A SSE streaming endpoint (message/stream).


        Same request format as /a2a but returns Server-Sent Events stream

        with real-time task status updates and results.


        Example:

        ```json

        {

        "skill": "best-yield",

        "message": {

        "role": "user",

        "parts": [{"type": "text", "text": "find best yield"}]

        }

        }

        ```'
      operationId: a2a_stream_endpoint_a2a_stream_post
      parameters:
      - name: X-API-Key
        in: header
        required: false
        schema:
          anyOf:
          - type: string
          - type: 'null'
          title: X-Api-Key
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema: {}
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
      tags:
      - A2a
components:
  schemas:
    ValidationError:
      properties:
        loc:
          items:
            anyOf:
            - type: string
            - type: integer
          type: array
          title: Location
        msg:
          type: string
          title: Message
        type:
          type: string
          title: Error Type
        input:
          title: Input
        ctx:
          type: object
          title: Context
      type: object
      required:
      - loc
      - msg
      - type
      title: ValidationError
    HTTPValidationError:
      properties:
        detail:
          items:
            $ref: '#/components/schemas/ValidationError'
          type: array
          title: Detail
      type: object
      title: HTTPValidationError