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OpenAPI Specification

openapi: 3.2.0
info:
  title: IGNOREO Backgammon API
  version: 1.0.0
  description: Tools for AI agents. Paid operations are paid per call in USDC over x402 (v2); the free shelf (paths under /v1/free/) needs no payment. No accounts or API keys.
servers:
- url: https://ignoreo.com
tags:
- name: Backgammon
paths:
  /v1/backgammon/analyze:
    post:
      operationId: backgammon.analyze
      summary: 'Backgammon Analysis: Best checker plays for a roll, or the cube decision, from…'
      description: Price $0.003 per call, paid in USDC over x402 on Base. Call without payment to receive a 402 with the payment requirements in the PAYMENT-REQUIRED header.
      parameters: []
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                position_id:
                  type: string
                  description: GNU Backgammon Position ID (14 characters), or use board
                board:
                  type: object
                  description: '{ on_roll: [25], opponent: [25] }: checkers per point, each side from its own home board (0 = its 1-point, 23 = its 24-point, 24 = bar)'
                match_id:
                  type: string
                  description: GNU Backgammon Match ID (12 characters), or use the plain fields below
                dice:
                  type: array
                  items:
                    type: integer
                  description: '[d1, d2] for checker play; leave out for a cube decision'
                cube:
                  type: integer
                  description: Cube value, default 1
                cube_owner:
                  type: string
                  enum:
                  - centered
                  - on_roll
                  - opponent
                match_length:
                  type: integer
                  description: 0 = money game (default)
                score:
                  type: array
                  items:
                    type: integer
                  description: '[on_roll, opponent] in a match'
                crawford:
                  type: boolean
                jacoby:
                  type: boolean
                  description: Money games; default true
                doubled:
                  type: boolean
                  description: 'true: the opponent has just doubled; analyse take or pass'
                depth:
                  type: integer
                  description: 0-2 plies, default 2
                max_moves:
                  type: integer
                  description: 1-20, default 5
            example:
              position_id: 4HPwATDgc/ABMA
              dice:
              - 3
              - 1
      responses:
        '200':
          description: Success (payment settled)
          content:
            application/json:
              schema:
                type: object
                properties:
                  type:
                    type: string
                    enum:
                    - move
                    - cube
                  summary:
                    type: string
                  moves:
                    type: array
                    description: rank, move, equity, loss, depth, chances
                  recommendation:
                    type: string
                  equity:
                    type: object
                    description: no_double, double_take, double_pass, best
                  position_id:
                    type: string
                  match_id:
                    type: string
              example:
                ok: true
                type: move
                dice:
                - 3
                - 1
                summary: 'Best play for 3-1: 8/5 6/5 (equity +0.200). Next best, 24/23 13/10, loses 0.211.'
                moves:
                - rank: 1
                  move: 8/5 6/5
                  equity: 0.2
                  loss: 0
                  depth: 0
                position_id: 4HPwATDgc/ABMA
                match_id: MIEFAAAAAAAA
                engine: GNU Backgammon
        '400':
          description: Bad request (not charged)
        '401':
          description: Wrong or missing workspace secret (not charged)
        '402':
          description: 'Payment required: see the PAYMENT-REQUIRED header'
      x-price-usd: '0.003'
      tags:
      - Backgammon