# rust-mcp-servers

> Seven local MCP servers rewritten in Rust. Each replaces a Node (npx) or
> Python (uvx) server that would otherwise sit resident in RAM for the whole
> session. Compiled, they are 3-9 MB idle and ready in single-digit
> milliseconds, against 115-620 MB and 0.4-1.6 s warm. Same tools, same
> JSON-RPC, no runtime underneath. MIT.

Made by Luka Löhr — https://lukaloehr.com

    git clone https://github.com/luka-loehr/rust-mcp-servers
    cd rust-mcp-servers && cargo build --release

Then point an MCP client at target/release/<name> instead of an npx or uvx
command.

IMPORTANT: two of the seven are not full parity. n8n-mcp-rs does not proxy to a
live n8n instance, and browser-mcp-rs is macOS-only with a smaller tool surface
than Playwright. Details in the setup runbook and the servers reference.

## Setup

- [Agent setup runbook](https://rmcp.lukaloehr.com/setup.txt): written for a coding agent. Asks what the user runs today, maps it, flags the two partial servers before touching anything, then builds, configures and verifies. Start here.
- [Servers reference](https://rmcp.lukaloehr.com/servers.txt): the seven, what each replaces, and exactly where coverage stops.

## Reference

- [Benchmarks](https://rmcp.lukaloehr.com/benchmarks.txt): idle RSS and time-to-ready per server against the original, with the measurement method.
- [Everything in one file](https://rmcp.lukaloehr.com/llms-full.txt): all of the above concatenated.

## Source

- [GitHub repository](https://github.com/luka-loehr/rust-mcp-servers): full source and per-server READMEs. MIT.
- [BENCHMARKS.md](https://github.com/luka-loehr/rust-mcp-servers/blob/main/BENCHMARKS.md): the authoritative numbers and the reproduction script.