Observed arrival · 2026-09-08

Elixir MCP: Model Context Protocol on the BEAM

elixirmcp.dev Observed source

Editorial interest 84/100 Selection signal · not a rating of the site

An open-source Elixir SDK for building MCP servers and clients with compile-time tool schemas, stdio, and Streamable HTTP transports.

Landing page captured for the 2026-09-08 issue.

Field notes

The project combines an Elixir MCP SDK with a hosted authorization-specific sandbox: visitors can read and edit virtual files, send messages through virtual device endpoints, and inspect the same session through Postgres. Its local daemon materializes the sandbox as ordinary files over an authenticated WebSocket rather than FUSE. The page identifies package version 0.4.0, stdio and Streamable HTTP transports, MCP negotiation to 2025-06-18, and more than 1,500 tests.

Observed signals

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Editorial observations of this landing page, not a rating.

○OpenPublic substance visible

⊠LoginAccess appeared gated

✦PrettyNotable craft visible

●ProPolished or operationally mature

◎NicheUnusually specific use

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