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SHA-512/224 Digest — Base64url Encoded
x402
SHA-512/224 Digest — Base64url Encoded is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-01).
Computes a SHA-512/224 cryptographic hash of the provided text and returns it encoded as a base64url string.
Price / call$0.003
Success—
StatusUnknown
How this service works
Call when an agent needs a sha512-224 digest of text, encoded as base64url. No network and no LLM. Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/digest-sha512-224-base64url first.
Output
Returns a base64url-encoded SHA-512/224 digest string of the provided input text. The output is a fixed-length, URL-safe hash suitable for use in checksums, cache keys, identifiers, or integrity verification.
Example use cases
Content fingerprinting for deduplication
“Take this article text and generate a SHA-512/224 base64url hash so I can use it as a unique fingerprint to detect duplicates: 'The quick brown fox jumps over the lazy dog.'”
Compact checksum for file metadata
“I have this JSON blob and need a short, URL-safe SHA-512/224 hash in base64url format to use as a cache key — can you hash the string '{"user":42,"action":"login"}'?”
Password pre-hashing before storage
“Before I store it, hash the passphrase 'CorrectHorseBatteryStaple' with SHA-512/224 and return it as a base64url string so I can use it as a derived key.”
Technical details
Endpoint
POSThttps://agentshelf.syntexa.ch/v1/digest-sha512-224-base64url?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a SHA-512/224 digest (a truncated SHA-512 variant offering 224-bit security) and require the output in base64url (URL-safe) encoding specifically. Prefer it over SHA-256 or SHA-512 endpoints when your system is constrained to SHA-512/224, and over hex or base64 siblings when the output must be URL-safe without padding. Use the sandbox endpoint /v1/sandbox/digest-sha512-224-base64url first to avoid charges during development.
Side effects
- Empty or missing 'text' field returns a validation error
- Text exceeding 100,000 characters is rejected
- Missing required 'key' field returns an authentication or validation error
- Malformed request body returns a 400-level error
- Payment failure (insufficient USDC balance) returns a 402 Payment Required
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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