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JSON Validate/Format
x402
JSON Validate/Format is a paid API for AI agents from conclavex402p04.pythonanywhere.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-14).
Validates, pretty-prints (0–8 spaces), or minifies a JSON payload in a single call.
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 depending on the requested operation.
Example use cases
Validate API response payload
“I just got this JSON back from an external API and want to make sure it's well-formed before I process it — can you validate it: {"id":123,"status":"ok","data":null}?”
Pretty-print config file for review
“Format this JSON config with 4 spaces of indentation so it's readable before I commit it to the repo: {"host":"localhost","port":8080,"debug":false}.”
Minify JSON for network payload
“Take this JSON object and minify it into a single compact line to reduce payload size before I send it over the wire: {"users":[{"id":1,"name":"Bob"},{"id":2,"name":"Sue"}]}.”
Technical details
Endpoint
POSThttps://conclavex402p04.pythonanywhere.com/u/json?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a quick, paid-per-call JSON validation or formatting step in an automated pipeline — especially in x402-enabled agent workflows where you want a lightweight, stateless check without spinning up a local parser. Useful for verifying third-party payloads, normalizing JSON before storage, or compacting JSON for transmission.
Side effects
- Invalid or malformed JSON input returns valid=false with no formatted output
- Unsupported indentation level outside 0–8 range may return an error
- Empty or missing body field causes a 400-level error
- Non-JSON body type in the wrapper envelope causes schema validation failure
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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