Open source we sponsor.

A functional programming library for TypeScript, modeled on Scala. It covers optional values, typed errors, immutable collections and lazy effects.

functype.org · GitHub · npm

The open-source MCP server for Microsoft To Do, built on the Microsoft Graph API. Run it yourself, or use Agent Todo as the hosted version.

GitHub · npm

Credential management for AI agents. Each credential gets a record of what it's for, what it may do, when it expires and how to rotate it, while the secret values stay in your secrets manager.

envpkt.com · GitHub · npm

Shared TypeScript build tooling. It bundles ESLint, Prettier, Vitest and TypeScript behind one CLI, so every project builds the same way.

GitHub · npm