Angr Api

MCP server for angr binary analysis API workflow retrieval.

Extracts real API usage patterns from angr's source code and angr-doc examples, then indexes them with semantic search so LLMs can query correct API call sequences.

Installation

Via Claude Code (recommended)

claude mcp add angr-api-mcp -- uvx angr-api-mcp

Via Claude Desktop

{
  "mcpServers": {
    "angr": {
      "command": "uvx",
      "args": ["angr-api-mcp"]
    }
  }
}

Via pip

pip install angr-api-mcp

First-time setup

After adding the server, build the index by calling the initialize_index tool from Claude:

initialize_index()

This clones angr and angr-doc from GitHub and builds the semantic index (~5–10 minutes). The index is stored at ~/.local/share/angr-api-mcp/chroma_db and persists across restarts.

Or run from the command line:

angr-api-mcp-admin build-index

# Point at local repos to skip cloning
angr-api-mcp-admin build-index --angr-path /path/to/angr --angr-doc-path /path/to/angr-doc

MCP Tools

Tool	Description
initialize_index	Build the workflow index
get_workflows	Search API call sequences by task description
get_api_doc	Look up a class or method
list_related_apis	Find co-occurring APIs
get_index_info	Show index metadata
clear_index	Wipe the index

CLI (admin / inspection)

# Search for workflows by task
angr-api-mcp-admin inspect workflows "run CFG analysis on a binary"
angr-api-mcp-admin inspect workflows "symbolic execution to find target address"

# Look up a class or method
angr-api-mcp-admin inspect api-doc SimulationManager
angr-api-mcp-admin inspect api-doc CFGFast

# Find co-occurring APIs
angr-api-mcp-admin inspect related Project

# Index info
angr-api-mcp-admin inspect info