{"uid":"cap_qev2HaAs67ownkepVLtaH","slug":"canaryguard-json-repair-sanitize-83761ef5","name":"CanaryGuard JSON Repair & Sanitize","description":"Deterministically repairs malformed or truncated LLM JSON payloads (missing quotes, trailing commas, markdown fences) while scrubbing embedded prompt-injection payloads.","url":"https://canaryguard-402.onrender.com/v1/json-repair-and-sanitize?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","required":["raw_json"],"properties":{"raw_json":{"type":"string"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","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":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_8McsY7PPg-_Q8iy-Di73E","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Deterministically repairs malformed or truncated LLM JSON payloads and scrubs embedded prompt-injection content from the repaired output.","exampleAgentPrompt":"The LLM just returned this broken JSON string with missing quotes, trailing commas, and what looks like an injected instruction buried inside — can you repair and sanitize it so I can safely parse it?","exampleUseCases":[{"title":"Fixing truncated LLM API responses","prompt":"The model's JSON response got cut off mid-object and has unclosed brackets and missing quotes — can you repair this raw string so I can parse it without crashing my pipeline?"},{"title":"Stripping prompt injection from agent input","prompt":"I received this JSON payload from an untrusted source and I'm worried it has prompt-injection instructions embedded in the values — can you sanitize it before I pass it to my agent?"},{"title":"Cleaning markdown-wrapped JSON from chat models","prompt":"The LLM wrapped its JSON response in triple-backtick markdown fences and added trailing commas — can you strip the fences, fix the syntax, and give me a clean parseable JSON object?"}],"resultDescription":"A repaired and sanitized JSON object with all syntax errors corrected (missing quotes, trailing commas, markdown fences, truncation) and any embedded prompt-injection payloads scrubbed, ready for safe downstream parsing.","failureModes":["Input JSON is so corrupted that deterministic repair is impossible — returns an error indicating irrecoverable malformation","Non-JSON content submitted as raw_json — returns validation error","Payload exceeds size limits — returns a size or timeout error","Missing required 'raw_json' field — returns a schema validation error"],"whenToPreferThis":"Choose this endpoint when you need deterministic, rule-based JSON repair rather than LLM-based regeneration — particularly when the payload may contain adversarial prompt-injection content that must be scrubbed before any LLM processes the data. Ideal for agentic pipelines where untrusted or LLM-generated JSON must be safely parsed without re-invoking a model.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-20T12:32:33.868Z","isFirstParty":false,"canonicalSlug":"canaryguard-json-repair-sanitize-83761ef5"}