Core helpers

Hashing and keyed hashes for AI agents

SHA-2, BLAKE2 and keyed hashes using secrets held in Memory.

utilities.hash_hmac

What it does

SHA-2, BLAKE2 and keyed hashes using secrets held in Memory. It is one of the Core helpers tools in the Ahura Utilities catalogue: a ready-made MCP tool that an agent calls with a typed input and gets a structured result back, with no library to install and no sandbox to start.

How agents use it

Agents use hashing and keyed hashes to fingerprint and authenticate data. Because it is a plain tool call, it slots into a single agent turn or a step in an Ahura Workflow, and large inputs and outputs are passed by reference using a store:// address from Ahura Store.

Interactive simulation

Run hashing and keyed hashes

Press Run to send the call. The dashboard shows what it would use in a partition. Simulated: nothing is actually executed.

ahura mcp · ptn_demo_7f3a

# Fingerprint and authenticate data.

→ POST /mcp

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "utilities.hash_hmac",
    "arguments": {
      "input": {
        "key": "value"
      }
    }
  }
}

Ready. Press Run.

ptn_demo_7f3a

Partition · N. Virginia · created just now

Simulated

Activeus-eastRetention hold

days left

Run time

0.0s

0 calls

Size

2.3MB

0.00 ACU used

Services in this partition

Utilities
0 calls · 0.00 ACU

Spend by service

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No usage yet.

Good to know

Billed per call, with the price shown in tools/list. See pricing
Runs inside your partition, so inputs and results stay isolated and follow its retention settings.
Safe to chain: pair it with Ahura Workflows for retries and approvals.

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