CosmWasm MCP Server Template

@drewstaylor

代码仓库

基本信息

分类

开发工具

许可证

Apache-2.0

传输方式

stdio

作者

drewstaylor

关于 CosmWasm MCP Server Template

MCP server template for CosmWasm smart contract projects

#cosmwasm #mcp #smart-contracts

CosmWasm MCP Server Template 配置

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代码仓库

CosmWasm MCP Server Template 工具

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概览

What is CosmWasm MCP Server Template?

A Rust-based MCP (Model Context Protocol) server template for wrapping CosmWasm contract query and execute entry point messages into formats that can be broadcast by a signer. It works with any CosmWasm contract and is intended for developers building MCP servers that enable AI agents to interact with on-chain contracts.

How to use CosmWasm MCP Server Template?

Requires Rust on the nightly channel. Adapt the template to your contract by updating Cargo.toml with your contract dependency, feature‑gating entry points, replacing imports in src/server.rs, and setting deployed contract addresses in src/contract.rs. Optionally customize LLM instructions, enable custom tool schemas, and choose a transport mode (stdio, SSE, or HTTP‑streamable). Build with cargo build --release. Connect to Claude Desktop via stdio, or to LangGraph via @langchain/mcp-adapters.

Key features of CosmWasm MCP Server Template

Wraps CosmWasm query and execute entry points
Generates JSON schemas for AI agents
Supports stdio, SSE, and HTTP‑streamable transports
Customizable LLM instructions and tool descriptions
Works with any CosmWasm contract via template adaptation
Provides 6 default MCP tools for contract interaction

Use cases of CosmWasm MCP Server Template

Building MCP servers for CosmWasm smart contracts
Enabling AI agents to query and transact with on‑chain contracts
Automating contract interactions in LangGraph or Claude Desktop
Creating custom tooling for marketplace, NFT, or multi‑contract systems

常见问题

What are the build requirements?

The server requires the Rust `nightly` build channel (edition 2024). Build with `cargo build` for development or `cargo build --release` for deployment.

How do I adapt the template to my own contract?

Update `Cargo.toml` with your contract’s dependency, ensure entry points are feature‑gated for library mode, replace the contract import in `src/server.rs` with your own `QueryMsg` and `ExecuteMsg`, and update the deployed contract addresses in `src/contract.rs`. Optional steps include enabling custom tool schemas and customizing LLM instructions.

What transport modes are supported?

Three transport modes are supported: **stdio** (default), **SSE** (Server‑Side Events), and **HTTP‑streamable** (a newer standard for remote MCP servers). The mode can be set in the server configuration.

How do I connect the server to Claude Desktop?

For stdio mode, set the `command` in `claude_desktop_config.json` to the path of the release binary. For WSL or VM setups, use the VM executable as the command and provide run arguments to the binary path.

How can I improve AI accuracy when using the server?

Add detailed doc comments (triple‑slash `///`) to your contract’s `QueryMsg` and `ExecuteMsg` variants. The `schemars` crate emb

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