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Projects pushed to within the last 7 days. Active repos mean faster PR reviews, responsive maintainers, and momentum worth joining.
Qdrant - High-performance, massive-scale Vector Database and Vector Search Engine for the next generation of AI. Also available in the cloud https://cloud.qdrant.io/
Weaviate is an open-source vector database that stores both objects and vectors, allowing for the combination of vector search with structured filtering with the fault tolerance and scalability of a cloud-native database.
Fair-code workflow automation platform with native AI capabilities. Combine visual building with custom code, self-host or cloud, 400+ integrations.
Debug, evaluate, and monitor your LLM applications, RAG systems, and agentic workflows with comprehensive tracing, automated evaluations, and production-ready dashboards.
🙌 OpenHands: AI-Driven Development
Production-ready platform for agentic workflow development.
🪢 Open source LLM engineering platform: LLM Observability, metrics, evals, prompt management, playground, datasets. Integrates with OpenTelemetry, Langchain, OpenAI SDK, LiteLLM, and more. 🍊YC W23
Open-source observability for your GenAI or LLM application, based on OpenTelemetry
LLM inference in C/C++
Milvus is a high-performance, cloud-native vector database built for scalable vector ANN search
an open source, extensible AI agent that goes beyond code suggestions - install, execute, edit, and test with any LLM
The agent engineering platform
From the team behind Gatsby, Mastra is a framework for building AI-powered applications and agents with a modern TypeScript stack.
The official Python SDK for Model Context Protocol servers and clients
Build AI Agents, Visually
A high-throughput and memory-efficient inference and serving engine for LLMs
The ultimate LLM/AI application development framework in Go.
Python SDK, Proxy Server (AI Gateway) to call 100+ LLM APIs in OpenAI (or native) format, with cost tracking, guardrails, loadbalancing and logging. [Bedrock, Azure, OpenAI, VertexAI, Cohere, Anthropic, Sagemaker, HuggingFace, VLLM, NVIDIA NIM]
Framework for orchestrating role-playing, autonomous AI agents. By fostering collaborative intelligence, CrewAI empowers agents to work together seamlessly, tackling complex tasks.
Developer-friendly OSS embedded retrieval library for multimodal AI. Search More; Manage Less.
Test your prompts, agents, and RAGs. Red teaming/pentesting/vulnerability scanning for AI. Compare performance of GPT, Claude, Gemini, Llama, and more. Simple declarative configs with command line and CI/CD integration. Used by OpenAI and Anthropic.
⚙️🦀 Build modular and scalable LLM Applications in Rust
⏩ Source-controlled AI checks, enforceable in CI. Powered by the open-source Continue CLI
aider is AI pair programming in your terminal
Get up and running with Kimi-K2.5, GLM-5, MiniMax, DeepSeek, gpt-oss, Qwen, Gemma and other models.
Langflow is a powerful tool for building and deploying AI-powered agents and workflows.
AI Observability & Evaluation
Data infrastructure for AI
Autonomous coding agent right in your IDE, capable of creating/editing files, executing commands, using the browser, and more with your permission every step of the way.
AI Agent Framework, the Pydantic way
The official Rust SDK for the Model Context Protocol
Zep | Examples, Integrations, & More
Build resilient language agents as graphs.
Convert documents to structured data effortlessly. Unstructured is open-source ETL solution for transforming complex documents into clean, structured formats for language models. Visit our website to learn more about our enterprise grade Platform product for production grade workflows, partitioning, enrichments, chunking and embedding.
The AI Toolkit for TypeScript. From the creators of Next.js, the AI SDK is a free open-source library for building AI-powered applications and agents
The agent engineering platform
Integrate cutting-edge LLM technology quickly and easily into your apps
Universal memory layer for AI Agents
LlamaIndex is the leading document agent and OCR platform
A guidance language for controlling large language models.
The official Go SDK for Model Context Protocol servers and clients. Maintained in collaboration with Google.
Letta is the platform for building stateful agents: AI with advanced memory that can learn and self-improve over time.
Visual testing tool for MCP servers
Access large language models from the command-line
The LLM Evaluation Framework
A programming framework for agentic AI
SWE-agent takes a GitHub issue and tries to automatically fix it, using your LM of choice. It can also be employed for offensive cybersecurity or competitive coding challenges. [NeurIPS 2024]
Evals is a framework for evaluating LLMs and LLM systems, and an open-source registry of benchmarks.
🧊 Open source LLM observability platform. One line of code to monitor, evaluate, and experiment. YC W23 🍓
The official TypeScript SDK for Model Context Protocol servers and clients
DSPy: The framework for programming—not prompting—language models