Idamesh MCP Server

idamesh

A Model Context Protocol (MCP) server for IDA Pro. It exposes IDA's disassembler and the Hex-Rays decompiler to MCP clients (Claude and others) as tools and resources, with a supervisor that fronts multiple databases behind one endpoint so several agents can work in parallel.

What it does

• Read — decompile (Hex-Rays), disassemble, cross-references, call graphs, type and struct inspection, memory reads, and string / byte / text search.
• Query — structured filters over functions, instructions, xrefs, types, imports.
• Analyze — survey / triage, crypto and dangerous-API detection, vulnerability heuristics, stack-string reconstruction, and dataflow / taint tracing.
• Mutate — rename, comment, retype, define code and data, edit stack frames, patch bytes / assembly, bookmarks, and annotation export / import.
• Parallelize — open each database over a private copy so multiple agents can work the same binary at once, and merge their edits back into one database.

Read-only IDB state is also projected as ida://… MCP resources.

Requirements

• Python 3.9+
• A licensed IDA Pro install providing the idapro / idalib Python API. Point the IDADIR environment variable at your IDA installation directory.

Install

pip install idamesh

Or from a clone, for development:

pip install -e .[dev]     # editable install + pytest, to run the test suite

This provides the idamesh command with three subcommands: worker, supervisor, and install.

Usage

Headless worker — one database on stdio (the client launches it):

idamesh worker /path/to/target.exe

Supervisor — one HTTP endpoint fronting many databases:

idamesh supervisor                       # http://127.0.0.1:8745/mcp

Open and close databases behind it with the idb_open / idb_list / idb_close tools; route any tool to a session with an optional database key (omit it when a single database is open). Opening the same binary twice yields two independent sessions; idb_merge reconciles their edits.

GUI plugin — serve MCP over your live, open IDA database:

idamesh install     # deploy the plugin into IDA's user directory, then restart IDA

Run idamesh supervisor (or set IDAMESH_AUTOLAUNCH_SUPERVISOR=1 to have the plugin start one), then open a binary in IDA — the supervisor adopts the live session and routes to it.

Both the worker (--transport http) and the supervisor speak MCP Streamable HTTP at a single /mcp endpoint, loopback-bound with Origin validation.

Connect from Claude Code

claude mcp add --scope user --transport http idamesh http://127.0.0.1:8745/mcp

Or launch a single stdio worker directly:

claude mcp add --scope user -e IDADIR=/path/to/IDA-Pro \
  idamesh -- idamesh worker /path/to/target.exe

Tests

pip install -e .[dev]
python -m pytest -q

The live idalib end-to-end tests skip cleanly when IDA is unavailable (no IDADIR), so the suite is green without an IDA install.

License

MIT.