{"uid":"cap_fB_SKKMqzOxX4OFF3L0gq","slug":"mcp-security-agentdiet-dev-deterministic-a2a-broken-json-repair-2d44ea37","name":"Deterministic A2A Broken-JSON Repair & Schema Validator","description":"Repairs truncated or malformed LLM JSON outputs (trailing commas, markdown fences, single quotes) so multi-agent pipelines never crash. (Live x402 v2, IETF MPP & MCP endpoint at https://mcp-security.agentdiet.dev/v1/structured-output)","url":"https://mcp-security.agentdiet.dev/v1/structured-output?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","required":["raw_json"],"properties":{"raw_json":{"type":"string","minLength":1,"description":"Malformed, truncated, or markdown-wrapped JSON string to deterministically repair"}}},"responseSchema":{"type":"object"},"example":null,"exampleRequest":null,"tags":[],"displayCostAmount":"0.002","displayCostAsset":"USD","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":"mpp","network":"tempo","amountUsd":"0.002","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"mpp","network":"tempo","amountUsd":"0.002","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_jyOC7JaO6EhXl7bxxCe6p","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.002","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"mcp-security.agentdiet.dev","brandSlug":"mcp-security-agentdiet-dev-mpp","brandBaseUrl":"https://mcp-security.agentdiet.dev","brandDocsUrl":null,"whatItDoes":"Repairs truncated or malformed LLM JSON outputs (trailing commas, markdown fences, single quotes) deterministically so multi-agent pipelines never crash on bad JSON.","exampleAgentPrompt":"This JSON came back from the LLM and it's broken — it has trailing commas and is wrapped in markdown fences. Can you repair it so my pipeline doesn't crash? Here it is: ```{\"name\": \"Alice\", \"age\": 30,}```","exampleUseCases":[{"title":"Fix LLM pipeline JSON crash","prompt":"My agent just got this response from GPT and it's crashing my pipeline because the JSON has a trailing comma and single quotes instead of double quotes — can you clean it up and give me valid JSON back? Here's the raw output: {'name': 'Bob', 'score': 42,}"},{"title":"Strip markdown fences from structured output","prompt":"The model returned its answer wrapped in triple backticks with a json tag, and my downstream parser can't handle it. Can you strip the markdown fences and return just the clean JSON object?"},{"title":"Repair truncated JSON from streaming response","prompt":"I was streaming a response from the LLM and it got cut off mid-object — the JSON is incomplete and missing its closing braces. Can you deterministically repair it so I can extract the fields I need?"}],"resultDescription":"A repaired, valid JSON object derived from the malformed input. The endpoint returns a structured JSON response with the corrected content, having resolved issues like trailing commas, markdown code fences, single-quoted keys/values, and truncated structures.","failureModes":["Input JSON is so severely malformed that deterministic repair is impossible — returns error","Input string is empty or whitespace — fails minLength validation","JSON structure is ambiguous and cannot be deterministically resolved — may return best-effort or error","Network timeout or service unavailability — HTTP 5xx response","Payment not provided — HTTP 402 response requiring x402 USDC payment"],"whenToPreferThis":"Choose this endpoint when you need deterministic, rule-based JSON repair rather than probabilistic LLM-based fixing. Ideal for multi-agent pipelines where LLM outputs frequently contain markdown fences, trailing commas, or single quotes that break downstream parsers. Prefer this over ad-hoc string manipulation when reliability and consistency are critical, especially in production agent workflows.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:18:47.433Z","isFirstParty":false,"canonicalSlug":"mcp-security-agentdiet-dev-deterministic-a2a-broken-json-repair-fe1334e3"}