MCP stdio server for radare2
Connect Radare2 to Claude, Cursor or any other MCP client and it stops being a tab you switch to. MCP stdio server for radare2. The radare2 mcp server is what makes that connection.
An MCP server to use radare2 with AI agents such as OpenCode, Mai, VSCode, Claude, CLION, ...
The toolset is worth reading before you wire it up, because it tells you what the integration is really for:
macOS — ~/Library/Application Support/Claude/claude_desktop_config.jsonWindows — %APPDATA%\Claude\claude_desktop_config.jsonCodex — This will create a personal marketplace in your home and copy the files from dist/codex-plugin insideSetup follows the usual MCP pattern — install or clone the server, register it in your client's configuration file, restart the client. The configuration blocks on this page cover the common clients.
Configuration is passed through the environment: R2MCP_AUTH_TOKEN. Treat anything key-shaped as a real credential — scope it to the minimum the server needs, and rotate it if it ever lands in a shared config.
Among the developer tooling options, the useful question is rarely "what can it do" but "what does it cost you to run" — permissions, credentials, and how much of your context its toolset consumes. Radare2's toolset — macOS, Windows, Codex — is a fair guide to whether it matches your workflow. It is maintained by radareorg; worth a glance at recent repository activity before you build anything load-bearing on it.
SyncDev reviews every entry in this directory against the project's own documentation before publishing, and revisits them as servers change.
| Tool | What it does |
|---|---|
| macOS | ~/Library/Application Support/Claude/claude_desktop_config.json |
| Windows | %APPDATA%\Claude\claude_desktop_config.json |
| Codex | This will create a personal marketplace in your home and copy the files from dist/codex-plugin inside. |
{
"mcpServers": {
"radare2": {
"command": "r2pm",
"args": ["-r", "r2mcp"]
}
}
}Configuration as documented by the project. Restart the client after saving.
| Variable | Description | Required |
|---|---|---|
| R2MCP_AUTH_TOKEN | Credential the server authenticates with. | Yes |
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