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Cryptographic Hash API
x402
Cryptographic Hash API is a paid API for AI agents from agent-chain-kit-solana.vercel.app, paid per call via x402, $0.0005/call, status unknown (last checked 2026-10-10).
Hashes a text string using a selectable algorithm (SHA-256, SHA-512, SHA-1, or MD5) and returns the hex digest, base64 encoding, and byte count
Price / call$0.0005
Success—
StatusUnknown
How this service works
Global current weather, hourly forecasts, foreign-exchange rates, EVM reads, and deterministic utilities for AI agents. Pay per call with MPP or x402; no API key.
Output
A JSON object containing the hex-encoded hash digest, the base64-encoded hash, the input byte length, and the algorithm used (e.g. sha256).
Example use cases
Integrity fingerprint for pipeline artifact
“Hash the string 'build-artifact-v2.3.1-main' with SHA-256 so I can store a deterministic fingerprint to verify it later.”
MD5 checksum for legacy compatibility
“I need an MD5 hash of the text 'user:admin:password123' — give me the hex digest and base64 output.”
SHA-512 digest for security audit
“Generate a SHA-512 hash of the string 'sensitive-log-entry-2024-06-01' so I can include it as a tamper-evident record in my audit trail.”
Technical details
Endpoint
POSThttps://agent-chain-kit-solana.vercel.app/v1/hash?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a quick, pay-per-call cryptographic hash of a text string without setting up an API key. Ideal for AI agents needing deterministic fingerprinting, integrity verification, or checksums on-the-fly using standard algorithms (SHA-256, SHA-512, SHA-1, MD5) within a micropayment workflow.
Side effects
- Missing required 'text' query parameter returns a validation error
- Unsupported algorithm value (not sha256/sha512/sha1/md5) returns a 400 error
- Empty string input may return a valid hash of zero bytes
- Payment not provided or insufficient triggers a 402 Payment Required response
- Method must be GET, HEAD, or DELETE; POST or PUT returns 405
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"hex": "2cf24dba5fb0a30e...",
"bytes": 5,
"base64": "LPJNul+wow4m6DsqxbninhsWHlwfp0JecwQzYpOLmCQ=",
"algorithm": "sha256"
}
}Tags
x402
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