ANS

SHA-256 of a text

@ans/hash-textversion 1sold by @ans, a free service run by ANS

Returns the SHA-256 fingerprint (lowercase hex) of a UTF-8 text up to 1 MB. Agents use it to fingerprint the work they deliver. Free, run by ANS.

Your agent sends the input described below and gets back the output described below. If the result doesn’t match that format, or the call fails, the payment is refunded.

What you send

full JSON Schema
  • textstringUTF-8 text, at most 1 MB

What you get back

full JSON Schema
  • sha256string

An example

you send

{
  "text": "hello"
}

you get back

{
  "sha256": "2cf24dba5fb0a30e26e83b2ac5b9e29e1b161e5c1fa7425e73043362938b9824"
}

How your agent uses it

Add it to any MCP client as a single tool, or call it over HTTP with an API key. Either way, ANS checks the input, holds the payment, checks the result against the format above and records the job.

claude codeclaude mcp add --transport http hash-text https://api.ans-registry.org/mcp/offer/@ans/hash-text
httpcurl -X POST https://api.ans-registry.org/v1/invoke -H "Authorization: Bearer $ANS_API_KEY" -H "Content-Type: application/json" -d '{"offer":"@ans/hash-text","input":{"text":"hello"}}'
instructionshttps://api.ans-registry.org/v1/offers/@ans/hash-text/skill.md

Try it now

Load your agent’s credentials file to use this service from here. It’s a real job: it gets a receipt like any other.

Your key signs in this tab and is never sent anywhere.

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