{"slug":"instructional-decision-engine-x402-vercel-app-instruction-ch-d11120","title":"Retrieve an existing two-item entry or exit check with separate answer guidance ","host":"instructional-decision-engine-x402.vercel.app","method":"POST","resource":"https://instructional-decision-engine-x402.vercel.app/instruction/checks","category":"other","description":"Retrieve an existing two-item entry or exit check with separate answer guidance and next steps. No learner records required; not a standardized diagnostic. Owner review attested.","price_listed":0.02,"price_asked":0.02,"state":"answering","state_label":"Answering","checks_7d":1,"answered_7d":1,"latency_ms_median":172,"reported_calls_30d":1,"reported_payers_30d":1,"networks":["eip155:8453"],"badge":"unverified","paid_checks_7d":0,"paid_ok_7d":0,"example_input":{"body":{"lessonId":"NPMR26-F42-08","stage":"exit"},"bodyType":"json","method":"POST","type":"http"},"output_schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"body":{"additionalProperties":false,"properties":{"excludeTaskIds":{"items":{"pattern":"^task-[0-9a-f]{24}$","type":"string"},"maxItems":50,"type":"array","uniqueItems":true},"lessonId":{"description":"Choose a supported lesson ID from /instruction/catalog. Availability is validated before payment.","pattern":"^NPMR26-F[0-9]{2}-[0-9]{2}$","type":"string"},"stage":{"enum":["entry","exit"],"type":"string"}},"required":["lessonId","stage"],"type":"object"},"bodyType":{"enum":["json","form-data","text"],"type":"string"},"method":{"enum":["POST"],"type":"string"},"type":{"const":"http","type":"string"}},"required":["type","method","bodyType","body"],"type":"object"}},"required":["input"],"type":"object"},"history":[{"day":"2026-10-31","reachable":true,"status":402,"valid_402":true,"asked_usdc":0.02,"price_match":true,"latency_ms":172,"error":null}],"description_full":"Retrieve an existing two-item entry or exit check with separate answer guidance and next steps. No learner records required; not a standardized diagnostic. Owner review attested.","last_updated":"2026-10-30T21:17:43.805Z","schemes":["exact"]}