pg_vectorize - Postgres extension + server that automates embedding generation, indexing, and hybrid search for RAG on Postgres.

Perplexica - Self-host a deep search engine that orchestrates web search, scraping, and reasoning to return source-backed answers.

Agent Evaluation (AWS Labs) - Simulate multi-turn conversations with your agent, auto-judge, and integrate into CI/CD to catch regressions.

Clawd - Self-hosted assistant that runs on your machine and via WhatsApp etc, can kick off claude code loops and much more.

GitButler - GUI Git client that lets you split and manage changes into parallel or stacked branches plus hooks to drive AI agents.

OpenHands Software Agent SDK - Composable Python + REST SDK to build code-editing agents in ephemeral Docker/Kubernetes workspaces.

Universal Tool Calling Protocol (UTCP) - Open standard and SDKs for calling native HTTP/gRPC/WebSocket/CLI tools directly (no wrappers).