Perseus Ledger — verifiable, hash-chained event provenance

A local-first MCP server that gives an assistant verifiable, hash-chained event provenance for autonomous systems, exposed through five tools.

What you can do

Record events into a hash-chained ledger so activity can be traced and verified later, using the five MCP tools the server exposes. The registry description gives no tool names or per-tool details, so the exact operations are not documented here. It runs locally on the user's machine over stdio, either as a Python package or a Docker image.

When to use it

Worth considering when you want an assistant's or autonomous system's actions recorded in a tamper-evident, verifiable event log kept on your own machine. Less useful if you only need general-purpose tooling, since the description covers provenance logging only.

Requirements

Runs as a local process over stdio, on desktop only. Install the Python package perseus-ledger or run the Docker image ghcr.io/perseus-computing-llc/ledger:1.2.4. No authentication, environment variables or headers are declared.