{"uid":"cap_WDXD11NMBN9-79LJmtyJ5","slug":"signalharness-agent-tool-schema-validator-8f6ef0e7","name":"SignalHarness Agent Tool Schema Validator","description":"Explore 330 pay-per-call x402 API services and 27 agent-native digital products, with Base USDC pricing, secure Polar checkout, and free discovery.","url":"https://signalharness.ai/api/agent/services/agent_tool_schema_validate/invoke","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"request_json":{"type":"string","maxLength":65536,"minLength":2}}},"responseSchema":{"type":"json","example":{"replay":false,"result":{"warnings":["Verify the caller-supplied data before relying on this result."],"service_id":"agent_tool_schema_validate","analysis_json":"{\"example\":\"schema-valid caller-supplied data\"}","evidence_scope":"caller_supplied_data"},"status":"succeeded","receipt":{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","usage":[],"status":"succeeded","network":"eip155:8453","artifacts":[],"endedAtMs":0,"latencyMs":0,"paymentId":"example-payment","receiptId":"example-receipt","requestId":"example-request","serviceId":"agent_tool_schema_validate","executionId":"example-execution","startedAtMs":0,"amountAtomic":"5000","resultSha256":"a838718609a8352d7307b0b84ce4e18c656b080415fdc8688fc066d0aa53b41a","serviceVersion":"1.0.0","settlementReference":"0x0000000000000000000000000000000000000000000000000000000000000000"},"artifacts":[],"requestId":"example-request","executionId":"example-execution"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_YObOfdPNgTfMbqqGKc6m6","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Validates a JSON string representing an agent tool schema and returns warnings, analysis, and evidence about its correctness.","exampleAgentPrompt":"Can you validate this agent tool schema JSON for me and let me know if there are any warnings or issues: '{\"name\":\"get_weather\",\"description\":\"Returns current weather\",\"parameters\":{\"type\":\"object\",\"properties\":{\"location\":{\"type\":\"string\"}},\"required\":[\"location\"]}}'?","exampleUseCases":[{"title":"Pre-deployment tool schema check","prompt":"Before I deploy this new agent tool, can you run this JSON schema through validation to catch any issues: '{\"name\":\"send_email\",\"description\":\"Sends an email\",\"parameters\":{\"type\":\"object\",\"properties\":{\"to\":{\"type\":\"string\"},\"subject\":{\"type\":\"string\"}},\"required\":[\"to\",\"subject\"]}}'?"},{"title":"Debugging malformed agent function spec","prompt":"My agent keeps failing to call this tool correctly — can you validate this function spec JSON and tell me what warnings come back: '{\"name\":\"search_web\",\"parameters\":{\"query\":{\"type\":\"string\"}}}'?"},{"title":"CI pipeline schema lint step","prompt":"As part of our automated checks, validate this agent tool schema JSON and return any warnings so I can block the build if it's invalid: '{\"name\":\"fetch_data\",\"description\":\"Fetches records from database\",\"parameters\":{\"type\":\"object\",\"properties\":{\"table\":{\"type\":\"string\"},\"limit\":{\"type\":\"integer\"}},\"required\":[\"table\"]}}'"}],"resultDescription":"Returns a JSON object containing a status field (succeeded/failed), a result object with a list of validation warnings, an analysis_json string with structured findings, and an evidence_scope field indicating the data source. Also includes a full execution receipt with payment details, latency, SHA-256 of the result, and artifact references.","failureModes":["Invalid or non-parseable JSON string in request_json returns a validation error","request_json exceeding 65536 characters is rejected","Missing required request_json field causes a schema error","Malformed tool schema may produce warnings rather than hard errors","Payment failure on the x402 layer prevents execution entirely"],"whenToPreferThis":"Choose this endpoint when you need a lightweight, pay-per-call programmatic check of an agent tool schema JSON before deploying or registering it with an AI framework. It is especially useful in CI/CD pipelines, agent marketplaces, or during iterative development where you want fast, structured feedback on schema correctness without running a full agent loop. Prefer this over manual JSON linting when you need structured warnings and evidence metadata returned in a machine-readable format.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T18:44:23.078Z","isFirstParty":false}