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OpenAPI Specification

openapi: 3.2.0
info:
  title: SigRank SignalAF Leaderboard API
  version: 1.0.0
  description: Versioned public API for AI operator benchmark data. Read endpoints are public unless stated otherwise. Errors use RFC 9457 Problem Details. API versioning uses URL path segments (/api/v1, /api/v2, etc.). Breaking changes ship under a new major version. Deprecated operations return a Deprecation header (RFC 8594) and a Sunset header with the retirement date. See the versioning and deprecation policy at /developers#versioning.
  contact:
    name: SigRank SignalAF
    url: https://signalaf.com/contact
  x-deprecation-policy: https://signalaf.com/developers#versioning
  x-sunset-policy: https://signalaf.com/developers#versioning
servers:
- url: https://signalaf.com/api/v1
  description: Production API v1
tags:
- name: Leaderboard
paths:
  /leaderboard:
    get:
      summary: Get the operator leaderboard
      description: Get current AI-operator rankings by Yield with optional window, platform, and limit filters. Rate-limit state is returned in RateLimit headers.
      operationId: getLeaderboard
      tags:
      - Leaderboard
      parameters:
      - name: window
        in: query
        description: 'Time window for leaderboard rankings: 7d, 30d, 90d, or all_time.'
        schema:
          type: string
          enum:
          - 7d
          - 30d
          - 90d
          - all_time
      - name: limit
        in: query
        description: Maximum number of operators to return (1–2000, default 25).
        schema:
          type: integer
          default: 25
          minimum: 1
          maximum: 2000
      - name: platform
        in: query
        description: Filter by AI platform (e.g. claude, chatgpt).
        schema:
          type: string
      responses:
        '200':
          description: Leaderboard data
          headers:
            RateLimit-Policy:
              schema:
                type: string
            RateLimit:
              schema:
                type: string
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Leaderboard'
        '400':
          $ref: '#/components/responses/BadRequest'
        '429':
          $ref: '#/components/responses/RateLimited'
        '500':
          $ref: '#/components/responses/InternalError'
components:
  schemas:
    Operator:
      type: object
      properties:
        codename:
          type: string
        rank:
          type: integer
        yield:
          type: number
        leverage:
          type: number
        velocity:
          type: number
        snr:
          type: number
    Leaderboard:
      type: object
      properties:
        entries:
          type: array
          items:
            $ref: '#/components/schemas/Operator'
  responses:
    RateLimited:
      description: Rate limited
    BadRequest:
      description: Bad request
    InternalError:
      description: Internal server error
externalDocs:
  description: SignalAF Developer Portal
  url: https://signalaf.com/developers
x-service-info:
  name: SigRank SignalAF
  categories:
  - ai-benchmarking
  - operator-scoring
  - token-efficiency
  - developer-tools
  description: Ranks AI operators by token-cascade efficiency using privacy-preserving token telemetry.
  url: https://signalaf.com
  docs: https://signalaf.com/developers
  mcp: https://signalaf.com/.well-known/mcp.json
  cli: npx sigrank