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PennyRail SHA-256 Hash Endpoint
x402
PennyRail SHA-256 Hash Endpoint 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 a SHA-256 cryptographic hash of a given input string, delivered as a paid micro-service via x402 settlement.
Price / call$0.001
Success—
StatusUnknown
How this service works
Machine-readable settlement service
Output
Returns a JSON object containing the SHA-256 hex digest of the provided input string. The response schema is open (additionalProperties: true), so the hash value is returned alongside any metadata fields the service includes.
Example use cases
Deduplicate records by content hash
“I need to detect duplicate entries in my pipeline — can you SHA-256 hash this string 'user:john@example.com:2024-01-15' so I can use it as a unique content fingerprint?”
Integrity check before storing data
“Before I store this payload, hash the string 'transaction:abc123:500USD' with SHA-256 so I can keep a checksum and verify it hasn't been tampered with later.”
Generate deterministic key from input
“Hash the string 'my-secret-seed-phrase-42' with SHA-256 — I want a deterministic identifier to use as a lookup key in my database.”
Technical details
Endpoint
POSThttps://pennyrail.vercel.app/api/p/nano/crypto.sha256--sha-256When to prefer
Choose this endpoint when you need a simple, pay-per-call SHA-256 hash computation without setting up local crypto libraries, or when operating inside an agent workflow that already uses x402 micro-payment infrastructure. It is ideal for lightweight, stateless hashing tasks where integrating a full cryptography dependency is undesirable. Avoid it for bulk hashing operations where per-call cost would accumulate significantly.
Side effects
- Missing 'input' field in request body returns a validation error
- Non-string input type may cause schema rejection
- Payment failure via x402 protocol results in 402 Payment Required before computation occurs
- Empty string input is accepted but produces a known fixed hash
- Network timeout on Vercel cold start may cause delayed response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | string |
Output
Schema · Response
{
"type": "object",
"additionalProperties": true
}Tags
x402
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