{"uid":"cap_WzFUonVzyTqIF4BNe_WuT","slug":"agentresolver-json-schema-validator-edb96427","name":"AgentResolver JSON Schema Validator","description":"Verify an x402 endpoint before paying: live payTo, USDC quote, network, asset, resource binding, TLS and endpoint safety for $0.001 on Base or Solana.","url":"https://agentresolver.vercel.app/api/json-schema-validate","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"data":{},"schema":{"type":"object"}}},"responseSchema":{"type":"json","example":{}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.001","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":"$0.001/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_EXhYetk0h9MYtqQ82Nr8Q","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Validates a JSON data string against a provided JSON Schema and returns a boolean result with detailed validation errors","exampleAgentPrompt":"Can you validate this JSON string against my schema and tell me exactly which fields are failing and why: the JSON is '{\"name\": 123, \"age\": \"old\"}' and the schema requires name to be a string and age to be an integer?","exampleUseCases":[{"title":"Validate API response before processing","prompt":"Before I store this API response, validate it against my expected schema — the JSON is '{\"userId\":\"abc\",\"score\":\"high\"}' and the schema requires userId to be a string and score to be a number. Tell me if it's valid and list any errors."},{"title":"Debug failing form submission data","prompt":"I'm getting schema validation errors on a form submission. Can you check this JSON '{\"email\":\"\",\"age\":-1}' against a schema that requires email to be a non-empty string and age to be a positive integer, and tell me exactly what's wrong?"},{"title":"Pre-flight check on generated JSON output","prompt":"Before I send this LLM-generated JSON to the downstream service, can you validate '{\"items\":[1,\"two\",3],\"total\":\"6\"}' against a schema that requires items to be an array of numbers and total to be a number, and give me a count of how many errors there are?"}],"resultDescription":"Returns a JSON object with a boolean 'valid' field indicating overall pass/fail, an integer 'errorCount', and an 'errors' array where each item includes the JSON path where the error occurred, the JSON Schema keyword that was violated (e.g. 'type', 'required', 'minLength'), and a human-readable error message.","failureModes":["Invalid or unparseable JSON string in 'data' field returns validation failure or 400 error","Malformed schema object causes schema parsing failure","Missing required 'data' or 'schema' fields returns error response","Extremely large JSON payloads may time out or be rejected","Schema references external $ref URIs that are unreachable may cause schema resolution failures"],"whenToPreferThis":"Use this endpoint when you need a lightweight, pay-per-call JSON Schema validation service without setting up your own validation infrastructure. Ideal for AI agents doing data quality checks, pre-flight validation of generated or received JSON, or debugging schema compliance issues at runtime. Prefer this over embedding a local JSON Schema library when operating in a serverless or agent environment without native validation libraries.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-18T12:38:10.346Z","isFirstParty":false}