Building agents

6,130 projects whose own agent configuration covers building agents. These are not mods to install — they are how the maintainers of these repositories tell an agent what to do, and what to avoid.

All projects Claude Code6,614Data and AI3,687Backend and APIs3,492Languages3,397Planning3,211Git and workflow3,159Code review2,735Memory and context2,362Testing2,357DevOps and cloud2,306Writing and docs2,299Research2,296

Any agent Claude CodeCodexOpenCodeGitHub CopilotGemini CLICursorWindsurfKiro

ProjectStarsConfiguresFilesAlways loaded
lleontor705/agent-mailbox-mcp MCP Server for inter-agent messaging — SQS-style mailbox for multi-agent AI systems 0 Claude Code 1 1,433 tok
cstillick/statefinance-mcp State-level campaign finance as an MCP server, through one common schema. Donors, expendit 0 Claude Code 1 757 tok
henryperkins/my-mcp-github 0 Claude Code 4 2,817 tok
olaoluwagureje1/my-mcp-server 0 Claude Code 3 5,279 tok
ianphil/promptbin Web and MCP for sharing prompts 0 Claude Code, Codex, OpenCode 10 2,164 tok
zriyansh/customgpt-mcp 0 Claude Code 1 1,500 tok
xpcoffee/nvim-markdown-notes-memgraph Standalone CLI for Memgraph + MCP server with Docker Compose orchestration for nvim-markdo 0 Claude Code 3 356 tok
jarrettmeyer/redactor-mcp 0 Claude Code 6
Mutigen/packforge AI Agent Instruction Hub — orchestrates context-aware instruction packs for Cursor, Claude 0 Claude Code, Codex, Cursor, OpenCode 3 3,123 tok
sejongjeong/runai-mcp 0 Claude Code 1 807 tok
vtmade/excalidraw-mcp-app 0 Claude Code 1 1,800 tok
OperatingSystem-1/mcp-git-coord MCP server that coordinates multiple AI coding agents working on the same codebase 0 Claude Code 6 171 tok
khill1269/servalsheets-v2 ServalSheets v2.0.0 — Production MCP Server for Google Sheets. 25 tools, 407 actions, MCP 0 Claude Code 25 2,947 tok
marcocavanna/mailbridge MCP server that gives an AI assistant access to IMAP/SMTP mailboxes: read, search, organiz 0 Claude Code 1 2,102 tok
zzhiyuann/cortex zzhiyuann.github.io The missing plug-in layer for AI coding agents — memory, delegation, tool generation, and 0 Claude Code 1 1,063 tok
hwandam77/Hybrid-Gemini-mcp Hybrid Gemini MCP server — combines the conversation management strengths of claude-gemini 0 Claude Code 1
Flagsmith/flagsmith-mcp 0 Claude Code, Codex 6
mythopoeic/mcp-server-demo Demo MCP server wrapping the sheet-compressor library (tools, resources, prompts) over std 0 Claude Code, Codex 18 134 tok
conraddiao/remote-mcp-server-with-auth 0 Claude Code 3 5,279 tok
elvatis/elvatis-mcp MCP server for OpenClaw - expose smart home, memory, and automation tools to Claude Deskto 0 Claude Code 6 1,963 tok
jagadeesh52423/ConfluenceMcp MCP server with 84 tools for Jira, Confluence, and Bitbucket Cloud -- full CRUD, smart tra 0 Claude Code 1 737 tok
jblacketter/engram Personal semantic memory for AI — PostgreSQL + pgvector + MCP + embeddings 0 Claude Code 1
prgmr99/agora Agora — MCP-native smart task router for AI agents. An open protocol where AI agents disco 0 Claude Code 1 696 tok
trash-panda-v91-beta/truenas-mcp 0 Claude Code, Codex, OpenCode 2 917 tok
ArmorNGlory/armornglory-mcp-server MCP server for Christian streetwear, faith-based clothing, trucker hats, and foam clogs. E 0 Claude Code, Codex, Gemini CLI, OpenCode 3 2,374 tok
adam-s/rubiks-cube-mcp 0 Claude Code 9
Raghu23-dev/trigsight trigsight.vercel.app Portfolio with an AI assistant that cannot make a claim it can't prove — every citation is 0 Claude Code, Codex, OpenCode 2 159 tok
sebahrens/bpmn-mcp 0 Claude Code, Codex, OpenCode 4 1,526 tok
eidos-agi/resume-resume pypi.org Search, read, and merge your Claude Code session history in plain English. MCP server + TU 0 Claude Code 3
10-gaurav-01/nexus-mcp Universal multi-AI gateway MCP server — 27 providers, orchestration, councils, autonomous 0 Claude Code 1 1,623 tok
samuellawrence/openapi-mcp-bridge A generic MCP server that takes any OpenAPI/Swagger specification and exposes it as MCP to 0 Claude Code 2 689 tok
Omm2005/Canvas-LMS-MCP 0 Claude Code, Codex 1
J-o-n-a-t-h-a-n-M-u-e-l-l-e-r/lattice Infers the dependency graph hidden in a GitHub backlog, writes it into GitHub's native iss 0 Claude Code, Codex, GitHub Copilot, OpenCode 7 1,948 tok
kthy/felt-mcp MCP server for agents working with Felt.com 0 Claude Code, Codex, OpenCode 2 999 tok
goods9999-ai/personal-file-analysis-mcp_test_20260826 A FastMCP-based test suite for locally reading and analyzing specific files 0 Claude Code, Codex, OpenCode 2 9,797 tok
omalleyandy/kenpom-client Python MCP server and API client for KenPom basketball analytics with automated odds fetch 0 Claude Code, Cursor 10 917 tok
sanshan1978/codeguard-rag-mcp Evidence-grounded Python defect and vulnerability diagnosis with Hybrid RAG, MCP, ChromaDB 0 Claude Code, Codex 9
sairamaraov/AI-Agent-MCP-Server A fun MCP server for allowing AI agent communication through MCP. We can monitor their com 0 Claude Code 1 4,050 tok
ftaricano/mcp-hub TypeScript MCP gateway for aggregating, searching, and routing tools across multiple Model 0 Claude Code, Codex, OpenCode 2 1,099 tok
igoyetche/paperboy A Model Context Protocol (MCP) server that exposes a tool for sending content directly to 0 Claude Code 48 8,994 tok
t-ogawa-dev/octopus-mcp-proxy t-ogawa-dev.github.io MCP Development Server 0 Claude Code, GitHub Copilot 7 1,171 tok
kevinkiklee/gemini-nano-banana-mcp Global MCP server for image generation and editing using Google Gemini Nano Banana models 0 Claude Code 1 922 tok
ihwooMil/long-term-memory pypi.org Intelligent memory MCP server for AI assistants — auto-save, semantic search, RL-powered r 0 Claude Code 6 127 tok
JorgeHI/mcp-harmony-context MCP to provide harmony API and tool context 0 Claude Code 1 558 tok
nnaveenraju/smara-mcp Smara: Sovereign Universal Memory MCP 0 Claude Code 1 2,281 tok
Safefy-Pay/safefy-mcp 0 Claude Code, Codex 1
shooebill/unified-mcp A wrapper MCP server that bundles OpenMemory and Cipher 0 Claude Code, Codex, OpenCode 5 459 tok
chittyos/chittymcp Multi-Tenant Model Context Protocol Server - Enterprise-grade MCP with OAuth, rate limitin 0 Claude Code, Codex, Gemini CLI, OpenCode 3 3,187 tok
mainpart/confluence-mcp 0 Claude Code 1 1,994 tok
techskies11/datadog-mcp 0 Claude Code, Cursor 3