IGNOREO Chess API
The Chess API from IGNOREO — 1 operation(s) for chess.
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curl "https://apis.io/api/v1/apis/ignoreo-com:ignoreo-com-chess-api"
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OpenAPI Specification
openapi: 3.2.0
info:
title: IGNOREO Chess 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: Chess
paths:
/v1/chess/analyze:
post:
operationId: chess.analyze
summary: 'Chess Analysis: Best moves for a chess position, from Stockfish'
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:
fen:
type: string
description: The position as a FEN, or use moves
moves:
type: array
items:
type: string
description: Moves from the starting position, SAN ("Nf3") or UCI ("g1f3")
lines:
type: integer
description: How many best moves, 1-5, default 3
depth:
type: integer
description: Search depth 1-22, default 16
example:
moves:
- e4
- e5
- Nf3
- Nc6
- Bc4
- Nf6
- Ng5
lines: 3
responses:
'200':
description: Success (payment settled)
content:
application/json:
schema:
type: object
properties:
summary:
type: string
side_to_move:
type: string
enum:
- white
- black
lines:
type: array
description: rank, move (SAN), move_uci, evaluation, pawns or mate, depth, line, chances { white, draw, black }
game_over:
type: boolean
description: true when the position is already mate or a draw
fen:
type: string
example:
ok: true
side_to_move: black
summary: 'Best for Black: d5 (-0.01). Also Bc5 (+1.05), Nxe4 (+1.92).'
lines:
- rank: 1
move: d5
move_uci: d7d5
evaluation: '-0.01'
pawns: -0.01
depth: 16
line:
- d5
- exd5
- Na5
- Bb5+
- c6
engine: Stockfish 19 (lite)
'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:
- Chess