rustok-mcp

MCP Server for Rustok — connects Claude Desktop, Cursor, and cloud agents to the Rustok wallet via Gateway.

Two editions

Rustok ships two wallet products — pick the trust model you want:

Related MCP server: seashail

Install (rustok-wallet-tui, self-custody)

curl --proto '=https' --tlsv1.2 -fsSL \
  https://raw.githubusercontent.com/rustok-org/mcp/wallet-tui-v0.8.2/scripts/install.sh | sh

rustok init             # creates the wallet — prints the 12 words + PIN once
rustok connect claude   # registers it with your agent (or: cursor / hermes)

The installer verifies the wallet image's cosign signature before anything touches disk, pulls it by digest, and installs the rustok command — it never touches a secret, a keystore or your wallet. Requires podman (or docker) and cosign; you can read the script before running it. Full walkthrough, including the by-hand setup without the shim: Installation Guide.

The wallet is one self-contained image (Core + Gateway + MCP over stdio + the human-approval console); keys live only in a local container volume and never leave your machine. Transactions that move funds are approved by a human in a second terminal with rustok console — the agent cannot drive it.

Install as an agent skill

The wallet skill (skills/rustok-wallet-tui/) installs straight from this repo:

# skills CLI (Claude Code, Cursor, and other agents) — https://skills.sh
npx skills add rustok-org/mcp

# Hermes Agent
hermes skills tap add rustok-org/mcp
hermes skills install rustok-org/mcp/rustok-wallet-tui

The agent edition skill for OpenClaw is published on ClawHub; a ClawHub listing for the TUI edition ships separately.

Registries

• Official MCP Registry — the agent edition is published as io.github.rustok-org/rustok-wallet (OCI package ghcr.io/rustok-org/rustok-wallet, stdio). A TUI-edition registry entry ships separately as io.github.rustok-org/rustok-wallet-tui.

• ClawHub — the agent edition skill for OpenClaw: clawhub.ai/temrjan/skills/rustok-wallet.

Quick Start (Development)

# Install dependencies
uv sync --dev

# Run the server
uv run rustok-mcp

# Or run stdio transport
uv run rustok-mcp-stdio

Docker

docker build -t rustok-mcp .
docker run -p 127.0.0.1:3001:3001 -e RUSTOK_MCP_HOST=0.0.0.0 rustok-mcp

To run the full stack (MCP → Gateway → Core + Redis), use the compose file in rustok-org/meta.

Authentication

The network-facing SSE transport is gated by a shared bearer token.

• Inbound (RUSTOK_MCP_INBOUND_API_KEY) — clients must send Authorization: Bearer <token> to reach /mcp/sse and /mcp/message. Distinct from the outbound RUSTOK_MCP_API_KEY (MCP → Gateway).

• Dev: leave it empty — the loopback flow stays open and the server logs a warning at startup.

• Prod: required. The token must travel in the request header, never in a query string (query strings leak into access logs). Generate one with openssl rand -hex 32.

• The browser EventSource API cannot set headers and is not a supported client; use an MCP client that sends request headers.

• /health is always public (used by the container healthcheck).

• The local stdio transport is process-trusted and not gated.

⚠️ The MCP has no built-in brute-force / rate-limit protection. Terminate it behind the edge proxy (Caddy) with host-level rate limiting (see the rustok-org/meta deploy docs); do not expose it to the internet directly.

What is Rustok?

Rustok is a self-custody AI-native crypto wallet. The MCP Server is a thin bridge between LLM agents and the Rustok Gateway — private keys never leave the Core service (they stay in the local keystore volume).

• Self-custody: keys are encrypted at rest (Argon2id + AES-256-GCM) and only decrypted inside Core on your machine.

• Capability-gated tools (read_wallet / preview_tx / execute_tx): the stdio transport is process-trusted (all by default; restrict with RUSTOK_MCP_CAPABILITIES); the network-facing SSE transport is bearer-gated.

• No spending policy by design: no hard-coded limits, budgets, or blocklists — you consciously accept the risk of funds on the agent wallet. txguard surfaces a risk level on preview but does not block. Opt-in limits may come later.

• Chains are opt-in: set RUSTOK_ALLOWED_CHAINS (default 1,8453 — Ethereum + Base); enable another chain by providing its RPC (RUSTOK_RPC_URLS_<id> or an Alchemy key).

• Informed preview: preview_transaction returns the decoded call (who/what is authorized), a pre-sign simulation (revert check), gas, and a txguard risk level. Execution is not exposed as an MCP tool.

• Audit logging: every action is append-only logged to SQLite in Core.

Documentation

• Installation Guide

• Configuration

• Troubleshooting

• Changelog

• Security Policy

License

This repository is licensed under MIT-0.

The Rustok Core wallet engine is a proprietary artifact built from the private rustok-org/core repository.