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JSON Validate/Format
x402
JSON Validate/Format is a paid API for AI agents from conclavex402.pythonanywhere.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-18).
Validates JSON for correctness, pretty-prints it with configurable indentation (0–8 spaces), or minifies it into compact form.
Price / call$0.005
Success—
StatusUnknown
How this service works
Validate, pretty-print (0-8 spaces), or minify JSON — json formatter/validator.
Output
Returns a JSON object with a 'valid' boolean indicating whether the input is valid JSON, and a 'formatted' string containing the pretty-printed or minified result. If invalid, an error description is typically included.
Example use cases
Validate API response payload
“I just got this JSON back from an external API and I'm not sure if it's well-formed — can you validate it and tell me if there are any errors? Here it is: {"user":{"id":42,"name":"Bob","roles":["admin","editor"]}}”
Pretty-print config file for readability
“Can you reformat this minified JSON config with 2 spaces of indentation so my team can read it easily? {"host":"localhost","port":5432,"db":"prod","ssl":true}”
Minify JSON before embedding in request
“I need to shrink this JSON down to its smallest form before I embed it in a URL parameter — can you minify it and remove all the whitespace? {
"key": "value",
"count": 10
}”
Technical details
Endpoint
POSThttps://conclavex402.pythonanywhere.com/u/json?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a quick, pay-per-call JSON validation or formatting step inside an automated pipeline without standing up your own JSON tooling. Ideal for agents that need to verify third-party data payloads before processing them, or to normalize JSON formatting for human review or downstream storage. Its low per-call cost ($0.005 USDC) makes it practical for high-frequency formatting tasks.
Side effects
- Malformed input JSON causes validation failure with an error message rather than a formatted result
- Missing required 'input' field returns a 400-level error
- Indentation level outside 0–8 range may be rejected or clamped
- Non-JSON body type may cause deserialization errors
- Payment failure or insufficient funds returns a 402 Payment Required
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"valid": true,
"formatted": "{\n \"a\": 1\n}"
}
}Tags
x402
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