AI Agent Frameworks, MCP Servers and SDKs

OpenChatCut is a local-first AI video editor for creators who want conversational editing with control over the finished cut. AI changes become editable clips, captions, effects and audio tracks in the same project you can adjust manually. It's a free, open-source ChatCut alternative under AGPL-3.0, with a desktop app for macOS, Windows and Linux.

PenEcho is an open-source workspace that puts handwritten notes, diagrams and AI-generated widgets on an infinite canvas. It runs on your computer as a macOS or Windows app, or through Node.js with a browser interface. It's for people who want to work through technical ideas visually and give AI feedback by drawing directly on the result.

Reef is self-hosted infrastructure for developers who want AI agents to improve through feedback on actual interactions. It connects inference and learning with versioned deployment, so an agent can update its model weights or its prompts, rules, and skills while continuing to serve requests. It's open source under Apache 2.0.

CozyClay is a local 3D previsualization studio for filmmakers and AI video creators who want to plan framing and movement before generating a finished clip. You build a rough scene, pose characters, and edit camera moves and cuts on a timeline. Those shots become visual references for models such as Seedance, Kling and Veo, so you can specify the camera through a clip rather than relying on text alone.

ripwire helps AI coding agents find relevant code and assess changes without filling their context with whole files. It runs offline on your machine as a self-contained binary, with a CLI and an optional MCP server. It's for developers who want their agents to spend less context on repository research and check the effects of their edits.

Karakeep is a bookmark manager for people who collect links, notes, images and PDFs in one place. You can run the open source app on your own server with Docker under the AGPL-3.0 license, or use the managed Karakeep Cloud service. It has a web app, iOS and Android apps, and extensions for Chrome, Firefox and Safari.

deja-vu gives coding assistants a shared memory of work already recorded on your machine. It searches sessions from before you installed it, so developers can recover an old fix or carry context between Claude Code, Codex CLI, Cursor and opencode without starting a separate collection of notes.

Bifrost is a self-hosted AI gateway for developers and teams whose applications use multiple model providers. It puts Ollama, custom model deployments, and cloud services behind one OpenAI-compatible API, so applications can switch models without maintaining a separate integration for each provider.

Pipecat is a Python framework for developers building conversational AI agents that handle speech, video, text, and images. You can run it on your own machine or servers, wherever Python runs. It's open source under the BSD 2-Clause license.

Graphiti is a self-hosted Python framework for developers building AI agents that need to remember changing facts. It builds knowledge graphs from conversations, structured records and unstructured text, so an agent can query current information or recover what was true earlier. It's open source under Apache 2.0.

Sim is an AI agent workspace for teams that need to build automations and control how people use them across an organization. You can self-host it on your own server or cloud with Docker or Kubernetes. Its open-source code uses the Apache 2.0 license.

Mastra is a TypeScript framework for developers building AI agents and applications on their own servers or inside existing web apps. Its server runs locally or as a standalone deployment; Mastra Cloud provides a hosted alternative. Model routing connects to providers such as OpenAI, Anthropic, and Gemini, so running the framework locally doesn't keep those model requests on your machine.

Firecrawl helps developers give AI agents and applications access to current web content. It searches for pages, extracts their contents, and returns data in forms an application can use. The project is open source under AGPL-3.0 and can run on a self-hosted server. Firecrawl also offers a hosted service that requires an account and API key and includes additional features. Reaching live websites requires an internet connection.

Langflow is a visual builder for developers creating AI agents and retrieval-augmented generation (RAG) applications. You can run it locally or on your own server, with Docker support and desktop apps for Windows and macOS. The open-source software uses the MIT license. A hosted cloud offering provides a separate deployment option.

Superpowers adds a structured development process to AI coding assistants. It's for developers who want their agent to agree on a design before writing code, follow an implementation plan, and check its work against that plan. The open-source framework uses the MIT license and works inside coding tools including Claude Code, Codex, Cursor, Gemini CLI and OpenCode.

Onyx is an AI search and chat platform for teams whose information is spread across workplace apps. It indexes company knowledge so employees can ask questions across sources and get answers grounded in relevant documents. Teams can deploy it in their own cloud or on bare metal, including an air-gapped environment.

GPT Researcher is a self-hosted AI research agent for people who need detailed, cited reports drawn from the web, their own documents, or both. You choose the language model and search provider, and can run the software on your own server or through Docker. It's open source under Apache 2.0.

Dify is a source-available platform for teams building AI agents and apps on a visual canvas. Its Community Edition runs on your own server with Docker. Dify also offers a hosted cloud service, while Enterprise deployments can run in a VPC or on a self-hosted server. The Community Edition uses a custom Apache 2.0 derivative license.

Agno is a Python framework and runtime for developers building customer-facing or internal AI agents. You can run its agent platform locally with Docker, on your own servers or in your cloud. The open-source framework uses the Apache 2.0 license, and the platform keeps sessions, memory, knowledge and traces in your database.

RAGFlow is an Apache 2.0 licensed RAG engine for teams building AI agents that need to answer questions from their own documents. It can run on a self-hosted server through Docker on Windows, macOS or Linux. A separate hosted cloud service is available.

Activepieces brings AI agents and workflow automation into one workspace for teams that need to connect their apps and internal data. It runs on your own servers with Docker or Kubernetes, or as a managed cloud service. An isolated deployment can keep platform data on its own infrastructure; connected apps and model providers may still require external access. Its core and app integration pieces are MIT-licensed.

Serena is a locally run MCP toolkit that gives AI coding agents access to code structure: functions, classes and the references between them. It's for developers who want their agent to find and change specific parts of a codebase without reading whole files or relying on text matching. It requires an LLM client and works with Claude Code, Codex, OpenCode, Cursor and OpenWebUI.

Cua gives AI agents access to computers they can inspect and operate, with tools for desktop automation, local virtual machines, and hosted fleets. It's for developers building agents that work across native apps and browsers, or evaluating how well those agents complete computer tasks. You bring the agent and model.

Context7 brings current library documentation and code examples into an AI coding assistant's context. It's for developers who want answers grounded in the libraries and versions they're actually using, rather than an assistant's older training data. It works with Claude Code, Codex, Cursor, Devin Desktop and Antigravity.

Pydantic AI is a Python SDK for developers building AI agents into their own applications. Its main draw is Pydantic validation across agent tools and results, so an agent can return structured data that application code can check and use. The SDK is MIT licensed.

Cline is an AI coding agent for developers who want help understanding a codebase and changing it. Its shared agent core is open source under Apache 2.0. You can use it in VS Code, JetBrains IDEs, or a terminal. A native desktop app runs on macOS and Windows. No editor is required for desktop sessions. The JetBrains plugin itself is not open source.

Docling is an MIT-licensed, open source document parser for developers turning files into structured content for search and AI applications. It runs locally on macOS, Linux, and Windows, including in air-gapped environments. Its PDF processing identifies page layout and reading order, extracts tables, code, and formulas, and classifies images.

LiteLLM gives platform teams one place to manage access to LLMs across providers. Its self-hosted AI gateway puts cloud services and internal or locally hosted models behind an OpenAI-compatible API, so applications can change models without changing their integration. Developers can also use its Python SDK directly.

Screenpipe records screen activity and audio as searchable local history that AI agents can use as context. It's for people who want to recall past work and teams that want agents to draft follow-ups or update work records using what actually happened. Raw history stays on your device by default.

LangGraph is a free, MIT-licensed Python framework for developers building AI agents that need to keep state and handle complex tasks. It gives teams control over how an agent moves between steps, where people can intervene, and what happens when a long-running task is interrupted.

MinerU parses documents locally into structured text for AI agents, RAG systems and knowledge bases. It's for people working with scanned PDFs, academic papers and Office files whose tables, formulas or page layouts need more care than plain text extraction.

Mem0 is a memory layer for developers building AI agents and assistants that need to recall earlier interactions. It retains user, session, and agent context across conversations, so an assistant can remember preferences or a support bot can refer to past tickets. The self-hosted code is open source under Apache 2.0; Mem0 also has a managed service.

Transformers is a Python library for developers and researchers who want to run pretrained AI models or train their own on hardware they control. It covers language, images, audio, video and multimodal work through a shared way of defining models. The library runs in a local Python environment; pretrained checkpoints are available from the separate Hugging Face Hub.

Browser Use is an MIT licensed browser agent for developers who want AI to carry out tasks on websites. You can run the open source agent on your own machine from Python, choose a model, and use either a local or cloud browser. A CLI is available for browser tasks too.

Whisper Notes is an offline transcription app for iPhone, iPad and Apple Silicon Macs. It's for people recording interviews, lectures or meetings who need the audio and transcripts to stay on their device. It requires no account and has no cloud sync, analytics or tracking.

Pi is a terminal-based coding assistant for developers who want to shape the agent around their own workflow. Its core stays small, while extensions can change its tools, commands and terminal interface. It's open source under the MIT license.