NAKONETS JSON Validate

x402

NAKONETS JSON Validate is a paid API for AI agents from x402vercel.vercel.app, paid per call via x402, $0.25/call, status unknown (last checked 2026-10-02).

Validates and normalizes a JSON string, returning whether it is well-formed and a pretty-printed normalized version

Price / call$0.25

Seller volume →—

Success—

StatusUnknown

How this service works

Pay-per-call deterministic utilities for CI diagnosis, data validation, JavaScript syntax checks, market snapshots and opportunity preflight.

Output

Returns a JSON object with a boolean 'valid' field indicating whether the input is valid JSON, and a 'normalized' string containing the pretty-printed, normalized version of the JSON if valid.

Example use cases

CI pipeline JSON config check

“Before I deploy, validate this JSON config string for me: '{"env":"production","replicas":3,"timeout":null}' — I need to know if it's well-formed and get back the normalized version.”

API response debugging

“I got this back from an API and I'm not sure if it's valid JSON — can you check it and normalize it? Here it is: '{"user":{"id":42,"name":"Bob","roles":["admin","editor"]}}'”

Data pipeline pre-validation

“Before I push this user record into the database, validate this JSON for me and return the pretty-printed version: '{"id":"u_001","email":"test@example.com","score":9.5}'”

Technical details

Endpoint

POSThttps://x402vercel.vercel.app/api/data/json-validate?utm_source=zero.xyz

When to prefer

Choose this endpoint when you need a fast, deterministic, pay-per-call JSON syntax check and normalization step — especially in CI pipelines, agent workflows, or data ingestion flows where you want a side-effect-free, reliable validation without spinning up a local parser or depending on a free-tier service with rate limits.

Side effects

Malformed JSON input returns valid:false with no normalized output
Empty string or missing 'text' field may return an error or valid:false
Non-string input types may cause request rejection
Payment failure (HTTP 402) if USDC is not provided or insufficient

Input

Schema · Request body

Field	Type	Description
text	string	JSON text to validate and normalize

Output

Schema · Response

{
  "type": "json",
  "example": {
    "valid": true,
    "normalized": "{\n  \"name\": \"Alice\",\n  \"age\": 30\n}"
  }
}

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