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PennyRail JSON Sort Keys
x402
PennyRail JSON Sort Keys is a paid API for AI agents from pennyrail.vercel.app, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).
Sorts the keys of a JSON object alphabetically and returns the transformed result
Price / call$0.001
Success—
StatusUnknown
How this service works
Machine-readable settlement service
Output
Returns a JSON object with an 'operation' field indicating the action performed (e.g. 'sort-keys') and a 'result' field containing the original JSON object with all top-level keys sorted alphabetically.
Example use cases
Canonical JSON for cache key hashing
“I need to produce a stable, deterministic JSON string for hashing — can you sort all the keys in this object so the key order is always the same: {"userId": "abc", "action": "buy", "timestamp": 1700000000}?”
Diffing two API responses
“Before I diff these two API responses, can you sort the keys alphabetically on this one so the structure matches the other: {"status": "ok", "count": 42, "items": []}?”
Normalizing config files before version control
“Sort the keys in this config JSON alphabetically so it looks clean and consistent in git diffs: {"timeout": 30, "retries": 3, "host": "localhost", "port": 8080}?”
Technical details
Endpoint
POSThttps://pennyrail.vercel.app/api/f/json.sort-keysWhen to prefer
Choose this endpoint when you need a lightweight, pay-per-call microservice to sort JSON object keys alphabetically without setting up your own transformation pipeline. It is ideal for agents that need deterministic, canonicalized JSON key ordering for hashing, comparison, or storage normalization, and want to pay only per transformation without API keys or subscriptions.
Side effects
- Missing 'input' field in request body returns a validation error
- Non-object JSON values (arrays, strings, numbers) may not be sortable and could return an error or unexpected result
- Malformed JSON input causes a parse error
- Payment failure via x402 protocol blocks the request before processing
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | JSON value |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| resultrequired | — | |
| operationrequired | string |
Tags
x402
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