Tools / Free tools

Hash free

SHA-1/256/384/512 hex digest.

GET /v1/hash

Returns the hex digest of a string using SHA-1, SHA-256, SHA-384, or SHA-512.

Parameters

`data` required	String to hash
`algo`	sha1, sha256 (default), sha384, sha512

Example

macOS / Linux

curl -s "https://quartermaster.surewhynot.app/v1/hash?data=hello&algo=sha256"

Windows (cmd or PowerShell)

curl.exe -s "https://quartermaster.surewhynot.app/v1/hash?data=hello&algo=sha256"

This endpoint is free — no payment required.

FAQ

Is this really free?

Yes — this endpoint takes no payment. It exists so you can try Quartermaster instantly and so agents can discover the service before paying for the heavier tools.

What are the paid tools?

Web extraction, AI summaries and embeddings, DNS, transaction status, settlement receipts, x402 inspection, and more — each a fraction of a cent per call. See the full catalog on the home page.

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