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Feral Tools JSON Formatter
x402
Feral Tools JSON Formatter is a paid API for AI agents from feral-tools.vercel.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).
Formats, prettifies, and optionally sorts keys of a JSON object with configurable indentation via a paid API
Price / call$0.01
Success—
StatusUnknown
How this service works
Small deterministic APIs purchasable with x402 USDC on Base.
Output
Returns a JSON object with an 'ok' boolean, the detected type of the input, the indent level used, whether keys were sorted, and a 'formatted' string containing the prettified JSON ready for display or storage.
Example use cases
Prettify API response for debugging
“I just got this raw minified JSON back from an API and I can't read it — can you reformat it with 4-space indentation and sort the keys so I can debug it? Here it is: {"z":99,"a":1,"m":42}”
Canonical JSON for config file storage
“Before I save this config object to disk, can you format it with 2-space indentation and sort the keys so the output is always deterministic? The object is {"timeout":30,"host":"localhost","port":8080}”
Normalize JSON for diff comparison
“I need to compare two JSON blobs to see what changed — can you format both with sorted keys and 2-space indent so the diff is meaningful? Start with this one: {"enabled":true,"version":"1.2","name":"service-a"}”
Technical details
Endpoint
POSThttps://feral-tools.vercel.app/api/formatWhen to prefer
Choose this endpoint when you need a fast, deterministic, paid-per-call JSON formatting service with configurable indentation and optional key sorting — especially useful in agentic pipelines where canonical, reproducible JSON output is required without standing up your own formatting logic.
Side effects
- Invalid or malformed JSON input returns an error response
- Missing required body fields may cause a 400-level error
- Network or server errors may return non-200 status
- Payment not completed via x402 protocol results in 402 Payment Required
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| json | — | A JSON value or a string containing JSON |
| indent | integer | |
| schema | object | Optional JSON Schema (draft-07) used to validate the input |
| sortKeys | boolean |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"type": "object",
"indent": 2,
"sortKeys": true,
"formatted": "{\n \"a\": 1,\n \"b\": 2\n}"
}
}Tags
x402
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