175 listed
Harnesses & SDKs
Frameworks and SDKs for building agents: the Claude Agent SDK, OpenAI Agents SDK, LangGraph, CrewAI and many more. Each page lists languages, packages, MCP and A2A support and how it orchestrates agents, with a link to the page every fact came from.
Showing 1–9 of 9
| Name | Language | Stars | Downloads / month (approx.) | MCP | A2A | Multi-agent |
|---|---|---|---|---|---|---|
| docx-editor Browser DOCX editor and document engine built on OOXML, with a Document API that agents reach through SDKs, a CLI and an MCP server. | JavaScript, Python | 1.1K | — | Via adapter | Not stated | — |
| notte Browser infrastructure for AI agents: local and cloud Playwright-based browser sessions, scraping and deployable browser functions. | Python, JavaScript, TypeScript | 2K | ~2.6K | Via adapter | Not stated | — |
| python-utcp Official Python implementation of the Universal Tool Calling Protocol, calling HTTP, CLI, MCP and text-file tools through plugins. | Python | 653 | ~8.1K | Via adapter | Not stated | — |
| Langroid Python framework for LLM apps built from collaborating agents that hold conversation state, tools and vector-store memory. | Python | 4.1K | ~14.5K | Via adapter | Not stated | Yes |
| datachain Python library that turns files in S3, GCS and Azure into versioned, typed datasets for pipelines and agents. | Python | 2.8K | ~19.3K | Via adapter | Not stated | — |
| flint-chart Visualization language and MCP server that lets AI agents create charts from editable chart specs. | TypeScript | 4.4K | — | Via adapter | Not stated | — |
| AutoGen Archived Microsoft Python framework for multi-agent apps; Microsoft directs new users to Microsoft Agent Framework. | Python | 61.5K | ~381.3K | Via adapter | Not stated | Yes |
| SkillNet Open infrastructure for discovering, evaluating, creating and routing reusable AI agent skills, with a Python SDK. | Python | 1.4K | ~10.1K | Via adapter | Not stated | — |
| RAGLight Typed Python toolkit for composing classic and agentic retrieval-augmented generation pipelines with pluggable LLMs and stores. | Python | 673 | ~330 | Via adapter | Not stated | — |