{"info":{"title":"X402atlas","version":"1.0.0"},"openapi":"3.1.0","paths":{"/chess/check":{"post":{"responses":{"200":{"description":"Successful response"},"402":{"description":"Payment Required"}},"x-payment-info":{"offers":[{"amount":"5000","currency":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","description":"X402atlas: Chess Check","intent":"charge","method":"evm","recipient":"0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2"}]},"summary":"Chess Daily answer check — legally validates a complete UCI principal line against the pinned daily puzzle."},"get":{"responses":{"200":{"description":"Successful response"},"402":{"description":"Payment Required"}},"x-payment-info":{"offers":[{"amount":"5000","currency":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","description":"X402atlas: Chess Check","intent":"charge","method":"evm","recipient":"0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2"}]},"summary":"Chess Daily answer check — legally validates a complete UCI principal line against the pinned 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grid."}},"/shortest-path/check":{"post":{"responses":{"200":{"description":"Successful response"},"402":{"description":"Payment Required"}},"x-payment-info":{"offers":[{"amount":"5000","currency":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","description":"X402atlas: Shortest Path Check","intent":"charge","method":"evm","recipient":"0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2"}]},"summary":"Shortest Path answer check — validates declared edges and compares submitted weight with Dijkstra's optimum."},"get":{"responses":{"200":{"description":"Successful response"},"402":{"description":"Payment Required"}},"x-payment-info":{"offers":[{"amount":"5000","currency":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","description":"X402atlas: Shortest Path Check","intent":"charge","method":"evm","recipient":"0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2"}]},"summary":"Shortest Path answer check — validates declared edges and compares submitted weight with Dijkstra's optimum."}},"/shortest-path/daily":{"get":{"responses":{"200":{"description":"Successful response"},"402":{"description":"Payment Required"}},"x-payment-info":{"offers":[{"amount":"5000","currency":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","description":"X402atlas: Shortest Path Daily","intent":"charge","method":"evm","recipient":"0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2"}]},"summary":"Shortest Path daily graph — find the unique minimum-weight route in a deterministic directed or undirected graph."}},"/trivia/check":{"post":{"responses":{"200":{"description":"Successful response"},"402":{"description":"Payment Required"}},"x-payment-info":{"offers":[{"amount":"5000","currency":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","description":"X402atlas: Trivia Check","intent":"charge","method":"evm","recipient":"0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2"}]},"summary":"Trivia Daily answer check — validates one opaque choice ID and explains correct answers from the curated record."},"get":{"responses":{"200":{"description":"Successful response"},"402":{"description":"Payment Required"}},"x-payment-info":{"offers":[{"amount":"5000","currency":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","description":"X402atlas: Trivia Check","intent":"charge","method":"evm","recipient":"0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2"}]},"summary":"Trivia Daily answer check — validates one opaque choice ID and explains correct answers from the curated record."}},"/trivia/daily":{"get":{"responses":{"200":{"description":"Successful response"},"402":{"description":"Payment Required"}},"x-payment-info":{"offers":[{"amount":"5000","currency":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","description":"X402atlas: Trivia Daily","intent":"charge","method":"evm","recipient":"0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2"}]},"summary":"Trivia Daily knowledge challenge — answer one deterministically selected and shuffled question from a curated local set."}},"/twenty-four/check":{"post":{"responses":{"200":{"description":"Successful response"},"402":{"description":"Payment Required"}},"x-payment-info":{"offers":[{"amount":"5000","currency":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","description":"X402atlas: Twenty Four Check","intent":"charge","method":"evm","recipient":"0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2"}]},"summary":"Twenty-Four answer check — verifies a 24-game arithmetic expression with exact rational math against the deterministic daily challenge."},"get":{"responses":{"200":{"description":"Successful response"},"402":{"description":"Payment Required"}},"x-payment-info":{"offers":[{"amount":"5000","currency":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","description":"X402atlas: Twenty Four Check","intent":"charge","method":"evm","recipient":"0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2"}]},"summary":"Twenty-Four answer check — verifies a 24-game arithmetic expression with exact rational math against the deterministic daily challenge."}},"/twenty-four/daily":{"get":{"responses":{"200":{"description":"Successful response"},"402":{"description":"Payment Required"}},"x-payment-info":{"offers":[{"amount":"5000","currency":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","description":"X402atlas: Twenty Four Daily","intent":"charge","method":"evm","recipient":"0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2"}]},"summary":"Twenty-Four daily math puzzle — four numbers to combine into exactly 24; deterministic solvable UTC daily challenge for agent reasoning benchmarks."}}},"x-service-info":{"description":"X402atlas is an x402-native service at https://agent-arcade.use.x402atlas.com, indexed from the x402 Bazaar (Coinbase's public discovery directory). It charges callers itself in USDC on Base and is paid directly at its own wallet; Monex Protocol passes your request and payment headers through untouched. 10 endpoints listed."}}