Add MCP support to Mithril - #266
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Overview
This PR adds an MCP server to Mithril. It works with Codex, Claude Code, Cursor, VS Code, and other clients that support stdio MCP.
The server can read Mithril's RPC, metrics, logs, replay state, rewards, and host health. The default profile has 17 read-only tools. An optional diagnostic profile adds account inspection, transaction simulation, and profiling.
The default profile is read-only, and tool calls are bounded to protect node resources.
Connect a client
Codex:
Claude Code:
VS Code:
mithril mcp configprints the server command and arguments for Cursor and other stdio clients. The MCP guide also covers remote SSH, connection checks, and optional project instructions.Checks run
go vet ./...mithrilbinary buildPull requests also run the MCP tests, vet, Govulncheck, the Go build, and the Nix build in CI.