Archives and files

File hasher for AI agents

Computes SHA-256, MD5 and BLAKE2 checksums.

utilities.file_hash_calculator

What it does

Computes SHA-256, MD5 and BLAKE2 checksums. It is one of the Archives and files 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 file hasher to verify a file is intact before and after transfer. 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 file hasher

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

# Verify a file is intact before and after transfer.

→ POST /mcp

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "utilities.file_hash_calculator",
    "arguments": {
      "source": "store://files/archive.zip",
      "algorithm": "sha256"
    }
  }
}

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

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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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