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Agent Dev Tools – Hashing (x402)
x402
Agent Dev Tools – Hashing (x402) is a paid API for AI agents from agent-dev-tools.frcompanycheck.workers.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-16).
Computes MD5, SHA-1/256/384/512, and HMAC hashes of a given text string, returning hex digests per algorithm, paid per call in USDC via x402.
Price / call$0.001
Success—
StatusUnknown
How this service works
Fast deterministic developer utilities for AI agents, paid per call in USDC via x402 (no account, no API key): UUID v4/v7, secure random numbers, dice, MD5/SHA/HMAC hashing, base64/hex/URL/HTML encoding, JSON validation/formatting, QR code SVG, password generation, JWT decoding and text statistics. Pure computation, nothing stored. Errors are never charged.
Output
A JSON object containing a map of requested algorithm names (e.g. md5, sha256) to their computed hex digest strings. Each algorithm returns at minimum a 'hex' field with the hash output. Multiple algorithms can be returned in a single response.
Example use cases
Data integrity fingerprinting
“Hash the string 'order-id-98432-confirmed' using SHA256 so I can use it as a fingerprint for deduplication.”
HMAC signature for webhook verification
“Generate an HMAC-SHA256 signature for the payload 'user=alice&action=login' using the secret key 'mysecretkey123'.”
Multi-algorithm checksum comparison
“Give me the MD5, SHA1, and SHA256 hashes of the text 'The quick brown fox jumps over the lazy dog' all at once so I can compare them.”
Technical details
Endpoint
GEThttps://agent-dev-tools.frcompanycheck.workers.dev/v1/hash?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need fast, deterministic cryptographic hashing of text without setting up an account or API key — especially in agent workflows that already use x402 micropayment rails. Ideal for one-off hashing tasks, HMAC generation, or computing multiple hash algorithms in a single call. Prefer over self-hosted solutions when your agent environment lacks a native crypto library or when you want pay-per-use billing with no subscription overhead.
Side effects
- Missing required 'text' query parameter returns an error (not charged)
- Invalid algorithm name in 'algo' list returns an error (not charged)
- Empty text string may return a valid hash of empty input
- HMAC key provided without a supported algorithm may be silently ignored or error
- x402 payment failure prevents the request from being processed
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"algorithms": {
"md5": {
"hex": "5eb63bbbe01eeed093cb22bb8f5acdc3"
},
"sha256": {
"hex": "b94d27b9…"
}
}
}
}Tags
x402
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