AgentProof JSON Repair

x402

AgentProof JSON Repair is a paid API for AI agents from agentproof-murex.vercel.app, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-15).

Fixes malformed JSON strings and returns a valid, structured JSON output suitable for AI agent consumption.

Price / call$0.001

Seller volume →—

Success—

StatusUnknown

How this service works

JSON repair for AI agents - fix malformed JSON and return structured output.

Output

Returns a valid, well-formed JSON object reconstructed from the malformed input, with syntax errors corrected, missing delimiters added, and structure normalized for downstream consumption.

Example use cases

Example prompt

“This JSON string is broken and won't parse — can you repair it and give me back valid, structured JSON? Here it is: {"name": "Alice", "age": 30, "city": "New York",.}”

Technical details

Endpoint

POSThttps://agentproof-murex.vercel.app/json/repair

When to prefer

Choose this endpoint when an AI agent or pipeline receives malformed, truncated, or syntactically invalid JSON that must be recovered without discarding the data. Especially useful when LLMs produce near-valid JSON with minor errors, or when external APIs return subtly broken payloads. Prefer this over manual parsing logic or regex hacks when you need a reliable, automated repair step in an agent workflow.

Side effects

Input is so severely corrupted that repair is impossible — returns error or best-effort partial output
Input is not JSON-like at all (e.g., plain text or binary) — may return an error indicating unparseable input
Ambiguous repairs where multiple valid interpretations exist — repair may silently choose one interpretation
Service unavailable or timeout — HTTP 5xx response
Payment not processed correctly — HTTP 402 payment required

Input

{
  "schema": {
    "type": "object",
    "required": [
      "name",
      "age",
      "city"
    ],
    "properties": {
      "age": {
        "type": "number"
      },
      "city": {
        "type": "string"
      },
      "name": {
        "type": "string"
      }
    }
  },
  "response": {
    "age": 30,
    "city": "New York",
    "name": "Alice"
  }
}

Schema · Request body

Field	Type	Description
inputrequired	object
output	object

Output

{
  "valid": true,
  "parsed": {
    "schema": {
      "type": "object",
      "required": [
        "name",
        "age",
        "city"
      ],
      "properties": {
        "age": {
          "type": "number"
        },
        "city": {
          "type": "string"
        },
        "name": {
          "type": "string"
        }
      }
    },
    "response": {
      "age": 30,
      "city": "New York",
      "name": "Alice"
    }
  },
  "changed": false,
  "service": "AgentProof",
  "endpoint": "json.repair",
  "warnings": [],
  "repairedText": "{\n  \"response\": {\n    \"name\": \"Alice\",\n    \"age\": 30,\n    \"city\": \"New York\"\n  },\n  \"schema\": {\n    \"type\": \"object\",\n    \"properties\": {\n      \"name\": {\n        \"type\": \"string\"\n      },\n      \"age\": {\n        \"type\": \"number\"\n      },\n      \"city\": {\n        \"type\": \"string\"\n      }\n    },\n    \"required\": [\n      \"name\",\n      \"age\",\n      \"city\"\n    ]\n  }\n}"
}

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Technical details

Endpoint

POSThttps://agentproof-murex.vercel.app/json/repair

When to prefer

Side effects

Input is so severely corrupted that repair is impossible — returns error or best-effort partial output
Input is not JSON-like at all (e.g., plain text or binary) — may return an error indicating unparseable input
Ambiguous repairs where multiple valid interpretations exist — repair may silently choose one interpretation
Service unavailable or timeout — HTTP 5xx response
Payment not processed correctly — HTTP 402 payment required

Input

{
  "schema": {
    "type": "object",
    "required": [
      "name",
      "age",
      "city"
    ],
    "properties": {
      "age": {
        "type": "number"
      },
      "city": {
        "type": "string"
      },
      "name": {
        "type": "string"
      }
    }
  },
  "response": {
    "age": 30,
    "city": "New York",
    "name": "Alice"
  }
}

Schema · Request body

Field	Type	Description
inputrequired	object
output	object

Output

{
  "valid": true,
  "parsed": {
    "schema": {
      "type": "object",
      "required": [
        "name",
        "age",
        "city"
      ],
      "properties": {
        "age": {
          "type": "number"
        },
        "city": {
          "type": "string"
        },
        "name": {
          "type": "string"
        }
      }
    },
    "response": {
      "age": 30,
      "city": "New York",
      "name": "Alice"
    }
  },
  "changed": false,
  "service": "AgentProof",
  "endpoint": "json.repair",
  "warnings": [],
  "repairedText": "{\n  \"response\": {\n    \"name\": \"Alice\",\n    \"age\": 30,\n    \"city\": \"New York\"\n  },\n  \"schema\": {\n    \"type\": \"object\",\n    \"properties\": {\n      \"name\": {\n        \"type\": \"string\"\n      },\n      \"age\": {\n        \"type\": \"number\"\n      },\n      \"city\": {\n        \"type\": \"string\"\n      }\n    },\n    \"required\": [\n      \"name\",\n      \"age\",\n      \"city\"\n    ]\n  }\n}"
}