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Vextorium Hashing & Encoding API
x402
Vextorium Hashing & Encoding API is a paid API for AI agents from api.vextorium.com, paid per call via x402, $0.0045/call, status unknown (last checked 2026-10-02).
Computes cryptographic hashes (SHA-256, SHA-512, SHA-3, Keccak-256, MD5, SHA-1, BLAKE2, RIPEMD-160, CRC32), HMAC signatures, encodes/decodes Base64/Base64URL/Hex/URL/Base58, decodes JWTs with expiry check, and generates UUIDs v4/v5 — all in a single POST endpoint.
Price / call$0.0045
Success—
StatusUnknown
How this service works
One endpoint for hashing and encoding: sha256, sha512, sha3, keccak256, md5, sha1, blake2, ripemd160, crc32, all-hashes-at-once, HMAC, base64/base64url, hex, URL and base58 encode/decode, JWT decode (with expiry check) and UUID v4/v5. Input as text, hex or base64.
Output
Returns a JSON object with an 'operacion' field (the operation name), a 'resultado' field (the output: hash hex string, encoded/decoded string, JWT claims object, UUID string, or for 'todos_los_hashes' a map of all algorithms to their digests), and 'bytes_entrada' (the number of bytes in the input).
Example use cases
Verify smart contract function selector
“Compute the Keccak-256 hash of the string 'transfer(address,uint256)' — I need the first 4 bytes to confirm the function selector for my Solidity contract.”
Sign webhook payload with HMAC
“Generate an HMAC-SHA256 signature for the text payload 'user_id=42&event=purchase' using the secret key 'mysecretkey123' so I can attach it to my webhook request.”
Decode and validate a JWT token
“Decode this JWT for me and check whether it's expired: eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIiwibmFtZSI6IkpvaG4gRG9lIiwiaWF0IjoxNTE2MjM5MDIyfQ.SflKxwRJSMeKKF2QT4fwpMeJf36POk6yJV_adQssw5c”
Technical details
Endpoint
POSThttps://api.vextorium.com/codificar-pago?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a single, paid-per-call API that consolidates a wide variety of hashing and encoding operations without deploying your own crypto library or server. Especially useful in agentic pipelines that need keccak256 (for EVM/blockchain work), Base58 (for Bitcoin/Solana address handling), JWT validation, or all-hashes-at-once comparison in one request. Prefer it over custom code when you want a serverless, stateless crypto utility with no infrastructure overhead.
Side effects
- Missing 'operacion' field returns a 400-level error
- Invalid or unsupported operation name returns an error response
- HMAC operation without a 'clave' secret key fails
- Input data exceeding 1 MB size limit is rejected
- Invalid base64 or hex input when formato_entrada is set to hex/base64 causes a parse error
- Invalid UUID namespace for uuid5 operation returns an error
- JWT decode on a malformed token string returns an error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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