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Investigation

Awesome AI OSS for AIT builders

A short curated map of open-source building blocks for human + agent pairs. Pick tools here. Belong somewhere next.

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  • Agent frameworks
    microsoft/agent-framework
    Multi-agent workflows

    Added: October 1, 2025

    ★ 14.5k on GitHub

    Open repo
  • Agent frameworks
    Deep Agents
    Batteries-included agent harness built on LangChain

    Added: July 27, 2025

    ★ 30.9k on GitHub

    Open repo
  • Protocols & SDKs
    modelcontextprotocol/php-sdk
    Official PHP SDK for Model Context Protocol

    Added: July 15, 2025

    ★ 1.7k on GitHub

    Open repo
  • MCP servers & runtimes
    prisma/mcp
    Prisma MCP server for database workflows

    Added: June 20, 2025

    ★ 49 on GitHub

    Open repo
  • RAG & memory
    RAG-Anything
    All-in-one multimodal RAG for text, images, tables, and equations

    Added: June 6, 2025

    ★ 24.4k on GitHub

    Open repo
  • Protocols & SDKs
    vercel/mcp-handler
    Helpers to host MCP servers on Vercel

    Added: May 9, 2025

    ★ 692 on GitHub

    Open repo
  • Agent frameworks
    DeerFlow
    ByteDance deep research / agent workflow framework

    Added: May 7, 2025

    ★ 84.9k on GitHub

    Open repo
  • MCP servers & runtimes
    huggingface/hf-mcp-server
    Hugging Face Hub MCP server

    Added: May 6, 2025

    ★ 313 on GitHub

    Open repo
  • MCP servers & runtimes
    aquasecurity/trivy-mcp
    Trivy MCP server for security scanning

    Added: April 24, 2025

    ★ 57 on GitHub

    Open repo
  • MCP servers & runtimes
    dynatrace-oss/dynatrace-mcp
    Dynatrace MCP server

    Added: April 23, 2025

    ★ 137 on GitHub

    Open repo
  • Protocols & SDKs
    modelcontextprotocol/go-sdk
    Official Go SDK for Model Context Protocol

    Added: April 23, 2025

    ★ 5.3k on GitHub

    Open repo
  • MCP servers & runtimes
    hashicorp/terraform-mcp-server
    Official HashiCorp Terraform MCP server

    Added: April 19, 2025

    ★ 1.6k on GitHub

    Open repo
  • MCP servers & runtimes
    metorial/mcp-containers
    Containerized MCP servers collection

    Added: April 14, 2025

    ★ 3.4k on GitHub

    Open repo
  • Open models & serving
    google/A2A
    Agent-to-agent protocol

    Added: April 9, 2025

    ★ 26.4k on GitHub

    Learn more

    Open repo
  • MCP servers & runtimes
    microsoft/mcp
    Microsoft MCP servers and tooling monorepo

    Added: April 9, 2025

    ★ 3.8k on GitHub

    Open repo
  • MCP servers & runtimes
    mongodb-js/mongodb-mcp-server
    Official MongoDB MCP server

    Added: April 4, 2025

    ★ 1.2k on GitHub

    Open repo
  • MCP servers & runtimes
    redis/mcp-redis
    Official Redis MCP server

    Added: April 2, 2025

    ★ 641 on GitHub

    Open repo
  • Agent frameworks
    Google ADK
    Agent Development Kit for building multi-agent systems

    Added: April 1, 2025

    ★ 22.1k on GitHub

    Open repo
  • MCP servers & runtimes
    mcpo
    Expose MCP tools as OpenAPI/HTTP for any client

    Added: March 30, 2025

    ★ 4.4k on GitHub

    Open repo
  • MCP servers & runtimes
    getsentry/sentry-mcp
    Sentry MCP server for error and issue context

    Added: March 29, 2025

    ★ 952 on GitHub

    Open repo
  • MCP servers & runtimes
    mcp-use/mcp-use
    SDK to connect any LLM to MCP servers and build agents

    Added: March 28, 2025

    ★ 10.8k on GitHub

    Open repo
  • MCP servers & runtimes
    Context7
    Context7 MCP server for up-to-date library docs

    Added: March 26, 2025

    ★ 64.1k on GitHub

    Open repo
  • MCP servers & runtimes
    heroku/heroku-mcp-server
    Official Heroku MCP server

    Added: March 26, 2025

    ★ 82 on GitHub

    Open repo
  • MCP servers & runtimes
    elastic/mcp-server-elasticsearch
    Elasticsearch MCP server

    Added: March 24, 2025

    ★ 728 on GitHub

    Open repo
  • MCP servers & runtimes
    aashari/mcp-server-atlassian-jira
    Atlassian Jira MCP server

    Added: March 23, 2025

    ★ 78 on GitHub

    Open repo
  • MCP servers & runtimes
    oraios/serena
    Coding-agent toolkit with MCP-based code intelligence

    Added: March 23, 2025

    ★ 31k on GitHub

    Open repo
  • MCP servers & runtimes
    awslabs/mcp
    AWS Labs MCP servers for AWS services

    Added: March 21, 2025

    ★ 9.9k on GitHub

    Open repo
  • Agent tools & crawlers
    Playwright MCP
    MCP server exposing Playwright browser automation to agents

    Added: March 21, 2025

    ★ 39k on GitHub

    Open repo
  • MCP servers & runtimes
    baidu-maps/mcp
    Baidu Maps MCP server

    Added: March 20, 2025

    ★ 447 on GitHub

    Open repo
  • MCP servers & runtimes
    geelen/mcp-remote
    Remote/proxy bridge for MCP over HTTP

    Added: March 20, 2025

    ★ 1.7k on GitHub

    Open repo
  • MCP servers & runtimes
    devhub/devhub-cms-mcp
    DevHub CMS MCP server

    Added: March 17, 2025

    ★ 9 on GitHub

    Open repo
  • MCP servers & runtimes
    gitlab-org/ai/lazy-mcp
    GitLab Lazy MCP

    Added: March 15, 2025

    ★ 20 on GitLab

    Open repo
  • MCP servers & runtimes
    comet-ml/opik-mcp
    Opik MCP server for LLM observability

    Added: March 11, 2025

    ★ 225 on GitHub

    Open repo
  • Agent frameworks
    openai/openai-agents-python
    OpenAI Agents SDK (+ MCP)

    Added: March 11, 2025

    ★ 30.4k on GitHub

    Learn more

    Open repo
  • MCP servers & runtimes
    bankless/onchain-mcp
    Bankless onchain MCP server

    Added: March 10, 2025

    ★ 78 on GitHub

    Open repo
  • MCP servers & runtimes
    makenotion/notion-mcp-server
    Official Notion MCP server

    Added: March 10, 2025

    ★ 4.7k on GitHub

    Open repo