67 technologies with at least 50 repos in the corpus, counted from declared dependencies across 290,197 public repositories. Smaller categories are tracked but not given a page until there is enough to say.
| Claude Code | 53,013 |
| AGENTS.md | 38,656 |
| Cursor | 7,040 |
| GitHub Copilot | 4,510 |
| Gemini CLI | 2,643 |
| Model Context Protocol | 59,670 |
| FastMCP | 6,345 |
| OpenAI | 31,788 |
| Anthropic | 14,791 |
| 6,712 | |
| Vercel AI SDK | 2,970 |
| Mistral AI | 388 |
| AWS | 379 |
| Cohere | 265 |
| DeepSeek | 204 |
| Azure AI Foundry | 172 |
| xAI | 66 |
| LangGraph | 12,803 |
| Claude Agent SDK | 2,480 |
| CrewAI | 1,943 |
| OpenAI Agents | 1,111 |
| Google ADK | 1,058 |
| Pydantic AI | 713 |
| AutoGen | 555 |
| Cloudflare Agents | 497 |
| Agno | 407 |
| DeepAgents | 405 |
| Strands | 395 |
| smolagents | 284 |
| DSPy | 283 |
| Mastra | 226 |
| AG2 | 88 |
| Genkit | 84 |
| Microsoft Agent Framework | 61 |
| LangChain | 18,896 |
| LlamaIndex | 773 |
| Haystack | 115 |
| Semantic Kernel | 106 |
| Groq | 8,207 |
| Hugging Face | 3,048 |
| Together AI | 242 |
| Cerebras | 90 |
| Fireworks AI | 84 |
| LangSmith | 4,422 |
| Langfuse | 1,239 |
| Arize Phoenix | 123 |
| Opik (Comet) | 50 |
| LiteLLM | 3,431 |
| OpenRouter | 480 |
| Ragas | 825 |
| DeepEval | 244 |
| Braintrust | 78 |
| Promptfoo | 58 |
| Microsoft Presidio | 267 |
| NeMo Guardrails | 61 |
| RunPod | 103 |