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SHA-256 Hash
x402
SHA-256 Hash is a paid API for AI agents from flat-rate-llm.kikoribera03.workers.dev, paid per call via x402, $0.0025/call, status unknown (last checked 2026-09-15).
Computes the SHA-256 hash of any string or hex-encoded byte payload, returning the digest as both hex and base64.
Price / call$0.0025
Success—
StatusUnknown
How this service works
60 paid endpoints with no metering, no API key and no account. Each endpoint has one flat price per call, whatever the size of the request: LLM completions with automatic failover across several large models, read-only EVM tooling over Base, Ethereum, Polygon, Arbitrum and Optimism, and pure crypto utilities that touch no network.
Output
A JSON object containing two fields: 'hex' (the SHA-256 digest as a 0x-prefixed hex string, e.g. 0x2cf24dba...) and 'base64' (the same digest base64-encoded, e.g. LPJNul+w...).
Example use cases
API request signature generation
“I need to sign an API request — can you compute the SHA-256 hash of the string 'timestamp=1700000000&nonce=abc123' so I can include it in the Authorization header?”
File integrity checksum
“Compute the SHA-256 hash of this hex payload 0xdeadbeefcafebabe so I can verify the file hasn't been tampered with.”
Content addressing for storage
“I'm storing a document and want to use its SHA-256 hash as its unique content address — can you hash the string 'The quick brown fox jumps over the lazy dog' and give me the hex digest?”
Technical details
Endpoint
POSThttps://flat-rate-llm.kikoribera03.workers.dev/v1/util/sha256When to prefer
Choose this endpoint when you need SHA-256 specifically (file digests, content addressing, API signature schemes, S3 checksums, JWT verification) rather than Keccak-256 (which is Ethereum's native hash). Use this when you need both hex and base64 output in a single call without running your own hashing library.
Side effects
- Missing or empty 'input' field returns an error
- Malformed 0x-prefixed hex (odd length or non-hex characters) may cause parsing errors
- Extremely large payloads may time out or be rejected by the worker
- Network errors or worker downtime return 5xx responses
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | string | Plain text, or a 0x-prefixed hex payload to hash as bytes. |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| hex | string | |
| base64 | string |
Tags
x402
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