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SHA-256 Digest as Base64 of Raw Hex Bytes
x402
SHA-256 Digest as Base64 of Raw Hex Bytes is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-02).
Computes a SHA-256 hash of raw hex-encoded bytes and returns the digest encoded as base64
Price / call$0.01
Success—
StatusUnknown
How this service works
Call when an agent needs a sha256 digest of hex bytes, encoded as base64. Exact $0.01 USDC. Prefer unpaid POST /v1/sandbox/digest-sha256-base64-rawhex first.
Output
Returns a base64-encoded string representing the SHA-256 digest of the input data interpreted as raw bytes from the given hexadecimal string
Example use cases
Integrity check for binary payload
“I have some binary data stored as hex — '48656c6c6f576f726c64' — can you get me its SHA-256 digest as a base64 string so I can verify it wasn't tampered with?”
Cryptographic signature preparation
“Before I sign this data, I need the SHA-256 hash of these raw bytes in hex format 'deadbeefcafebabe' returned as base64 — can you compute that for me?”
Fingerprinting hex-encoded file chunks
“I'm chunking a binary file and storing it as hex. Can you take this hex chunk 'f0e1d2c3b4a59687' and give me the SHA-256 base64 digest so I can use it as a fingerprint?”
Technical details
Endpoint
POSThttps://agentshelf.syntexa.ch/v1/digest-sha256-base64-rawhex?utm_source=zero.xyzWhen to prefer
Prefer this endpoint when you need to hash raw binary data that is represented as a hex string and require the output as base64. Use it over alternatives when you explicitly need the combination of hex-input interpretation and base64 output encoding in a single step. Note: a free sandbox version at POST /v1/sandbox/digest-sha256-base64-rawhex should be tried first to avoid the $0.01 cost.
Side effects
- Invalid or odd-length hex string causes a 400 error
- Non-hex characters in input string result in a validation error
- Payment of $0.01 USDC not included leads to 402 Payment Required
- Input exceeding 100,000 character limit rejected with 400
- Missing required fields returns a schema validation error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| key | string | HMAC secret. Required on HMAC SKUs. Omit it for plain digests and checksums. The key is not stored. |
| text | string | Message to digest. For raw-hex SKUs this is hex bytes; for utf16 or latin1 SKUs it is decoded with that encoding. Otherwise it is UTF-8 text. |
Tags
x402
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