{"uid":"cap_OSfoeO-A-g_ilOOC0907u","slug":"delx-json-schema-quickcheck-337e8536","name":"Delx JSON Schema Quickcheck","description":"Lightweight type/required/property check for agent-held JSON (not full draft validation) — first-party local utility for agent preflight and proven micro-utils expansion. Returns deterministic machine-readable JSON for $0.002 USDC via x402 on Base. Execution is first-party, local-only, stateless, and memory-only with no paid upstream, no input retention, no web search, no live RPC, and no mediagen. Results are advisory; the caller owns authorization, budgets, and production controls. Sibling of…","url":"https://api.delx.ai/api/v1/x402/json-schema-quickcheck","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"schema":{"type":"object","description":"Input field: schema."},"instance":{"type":"object","description":"Input field: instance."}}},"responseSchema":{"type":"json","example":{"ok":true,"note":"quickcheck only — not full draft-2020-12 validation","errors":[],"schema":"delx/util-json-schema-quickcheck/v1","error_count":0}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.002","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":"$0.002/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_w8qk72rJn0EnJNFIlwC2p","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.002","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Performs a lightweight type, required-field, and property check on a caller-supplied JSON instance against a caller-supplied JSON schema without full draft validation.","exampleAgentPrompt":"Can you do a quick schema check on this JSON object to make sure all the required fields are present and the types are correct before I send it downstream? Here's my schema and my instance.","exampleUseCases":[{"title":"Agent preflight before API call","prompt":"Before I submit this order payload to the fulfillment API, run a quick schema check to make sure all required fields are there and the types are right — here's the schema and the JSON object I'm about to send."},{"title":"Catching type mismatches in pipeline data","prompt":"I've got a JSON blob coming out of my data pipeline and a schema it's supposed to conform to — can you do a lightweight type and required-property check to flag anything that looks wrong?"},{"title":"Validating LLM-generated JSON output","prompt":"The LLM just generated this JSON response and I have the expected schema — can you run a quick check to verify the required fields are present and the types match before I use it?"}],"resultDescription":"Returns a deterministic machine-readable JSON object indicating whether the instance passes or fails the schema check, with details about which type checks, required fields, or property checks failed — advisory results only, with no state retained.","failureModes":["Malformed or non-object schema input returns an error response","Malformed or non-object instance input returns an error response","Only lightweight checks performed — full JSON Schema draft features (e.g. $ref, allOf, pattern, format) may not be evaluated","Payment failure via x402 results in a 402 response before execution","Network timeout if the caller's connection is interrupted"],"whenToPreferThis":"Choose this endpoint when you need a fast, cheap, stateless preflight check on agent-held JSON — particularly when you want deterministic machine-readable output at $0.002 per call with no external dependencies, no data retention, and no need for full JSON Schema draft compliance. Prefer this over a full schema validator library when the agent is operating in a constrained environment or when only type, required, and property presence checks are needed.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T13:16:32.107Z","isFirstParty":false}