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unprice Hash Compute API
x402
unprice Hash Compute API is a paid API for AI agents from volkov.evgeny.m2.fvds.ru, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-23).
Computes a SHA-256 hash and byte size of a given text string, returning cryptographic hash metadata for the input
Price / call$0.001
Success—
StatusUnknown
How this service works
Tiny paid web services for agents. Pay per request with USDC on Base via x402, plus non-x402 Base USDC tx-hash checkouts for Merchant Feed Audit, Base USDC receipts, and recent wallet statements.
Output
Returns a JSON object with two fields: 'bytes' (integer byte length of the input text) and 'sha256' (hex-encoded SHA-256 hash of the input text). Example: {"bytes":5,"sha256":"2cf24dba5fb0a30e26e83b2ac5b9e29e1b161e5c1fa7425e73043362938b9824"}
Example use cases
Verify message integrity before storage
“Hash the string 'user:alice:session:abc123' so I can compare it later and confirm nothing was tampered with.”
Generate deduplication key for text content
“Compute a SHA-256 fingerprint for the text 'Order confirmed: #4892' so I can use it as a dedup key in my database.”
Check byte length and hash of a payload
“Take the string 'Hello, World!' and tell me its SHA-256 hash and how many bytes it is.”
Technical details
Endpoint
GEThttps://volkov.evgeny.m2.fvds.ru/pay/hash?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a pay-per-use, micropayment-gated SHA-256 hash computation without setting up your own infrastructure. It is especially useful in agent workflows that require cryptographic integrity checks on small text payloads and can pay via USDC on Base. Not ideal for hashing large binary files or for high-volume batch hashing where per-call USDC costs would accumulate.
Side effects
- Missing 'text' query parameter may return an error or hash of empty string
- Non-UTF8 or very large text inputs may cause unexpected byte counts
- Payment failure via x402 returns 402 status before processing
- Service unavailability on the VPS host results in connection timeout
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"bytes": 5,
"sha256": "2cf24dba5fb0a30e26e83b2ac5b9e29e1b161e5c1fa7425e73043362938b9824"
}
}Tags
x402
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