74 technologies with at least 50 repos in the corpus, counted from declared dependencies across 388,317 public repositories. Smaller categories are tracked but not given a page until there is enough to say.
| Claude Code | 69,712 |
| AGENTS.md | 57,206 |
| Cursor | 8,419 |
| GitHub Copilot | 5,460 |
| Gemini CLI | 3,692 |
| Model Context Protocol | 74,911 |
| FastMCP | 7,205 |
| OpenAI | 36,908 |
| Anthropic | 18,088 |
| 7,643 | |
| Vercel AI SDK | 3,607 |
| AWS | 453 |
| Mistral AI | 452 |
| Cohere | 291 |
| DeepSeek | 265 |
| Azure AI Foundry | 206 |
| xAI | 78 |
| LangGraph | 15,902 |
| Claude Agent SDK | 3,043 |
| CrewAI | 2,148 |
| OpenAI Agents | 1,310 |
| Google ADK | 1,283 |
| Pydantic AI | 776 |
| Cloudflare Agents | 616 |
| AutoGen | 607 |
| DeepAgents | 531 |
| Strands | 500 |
| Agno | 465 |
| smolagents | 321 |
| DSPy | 318 |
| Mastra | 269 |
| AG2 | 98 |
| Genkit | 92 |
| Microsoft Agent Framework | 80 |
| Inngest AgentKit | 64 |
| LangChain | 21,179 |
| LlamaIndex | 829 |
| Haystack | 137 |
| Semantic Kernel | 118 |
| Groq | 9,639 |
| Hugging Face | 3,537 |
| Together AI | 265 |
| Fireworks AI | 105 |
| Cerebras | 97 |
| LangSmith | 5,096 |
| Langfuse | 1,562 |
| Arize Phoenix | 146 |
| Opik (Comet) | 64 |
| Traceloop | 59 |
| AgentOps | 51 |
| LiteLLM | 3,896 |
| OpenRouter | 573 |
| Portkey | 57 |
| Ragas | 980 |
| DeepEval | 315 |
| Braintrust | 89 |
| Promptfoo | 89 |
| Microsoft Presidio | 382 |
| NeMo Guardrails | 89 |
| Guardrails AI | 60 |
| RunPod | 106 |