Linchpin: Open-source self-hostable runtime for managed AI agents
By
NIkhil Aourpally
A good honest bake. Not flashy, but you'll finish the whole bagel.
Summary
Linchpin is an open-source, self-hostable runtime for managing AI agents, launched on Product Hunt. It provides a complete agent platform that can be deployed with a single `docker compose up` command, featuring REST + SSE APIs, per-session Docker sandboxes, MCP tools, and encrypted vaults. It supports both cloud models via OpenRouter and local models via Ollama. The project is Apache-2.0 licensed and was created in response to demand for open-source alternatives to proprietary AI agent platforms like Devin, Manus, and Operator.
Key quotes
· 4 pulledEvery time Devin, Manus, or Operator launched, the top comment on HN was some variant of 'is this open source?' The answer kept being no. So we built Linchpin.
It's the runtime layer under a managed agent — the thing you run on a VM that hosts the agents, manages the per-session Docker sandbox, persists the event log, and exposes a clean HTTP/SSE contract.
Closer to 'LangGraph + your-own-FastAPI + your-own-docker-py + your-own-event-log, but pre-wired' than to a library.
One `docker compose up` and you get a full agent platform — REST + SSE API, per-session Docker sandbox, MCP tools, encrypted vaults.
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