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PennyRail SHA-256 Hash
x402
PennyRail SHA-256 Hash 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).
Computes the SHA-256 cryptographic hash of a given input string and returns the hex digest
Price / call$0.001
Success—
StatusUnknown
How this service works
Machine-readable settlement service
Output
Returns a JSON object with an 'operation' field (e.g. 'crypto.sha256') confirming what was performed, and a 'result' field containing the SHA-256 hex digest of the input string.
Example use cases
Data integrity fingerprinting
“Hash this JSON payload string for me so I can store its SHA-256 fingerprint and detect any future tampering: '{"user":"alice","balance":100}'”
Password pre-hashing before storage
“Take the plaintext password 'MyS3cur3Pass!' and give me its SHA-256 hash so I can compare it against what's stored in our database.”
Content deduplication key generation
“I need a unique key for this document — can you SHA-256 hash this text so I can use it as a deduplication ID: 'Invoice #4892 dated 2024-06-01 for $500'?”
Technical details
Endpoint
POSThttps://pennyrail.vercel.app/api/f/crypto.sha256When to prefer
Choose this endpoint when you need a pay-per-call, serverless SHA-256 hashing service accessible via HTTP without managing any infrastructure. It is ideal for agents that need occasional, lightweight cryptographic hashing billed at fractions of a cent per call via x402/USDC micropayments, rather than running a local crypto library.
Side effects
- Missing 'input' field returns a validation error
- Non-string input types may cause a 400 error
- Payment failure (insufficient USDC balance) returns a 402 Payment Required
- Network timeouts on the Vercel edge function may return 504
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | string | string |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| resultrequired | — | |
| operationrequired | string |
Tags
x402
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