Plugins, MCPs, CLI tools

IDE plugins, concrete MCP servers, and CLI tools that give agents tools and context.

#ProjectStarsTierOSSDescription
1MCP Servers
mcpmemorytypescript
89.1kmostly simpleThe official reference collection of Model Context Protocol servers (filesystem, git, fetch, memory, time, and more)—the canonical, vetted toolset agents connect to, and the pattern every other MCP server is measured against.
2Context7
mcptrainingtypescript
60.2ksuper simpleMCP server that injects up-to-date, version-specific library docs into an agent's context on demand; kills the stale-training-data hallucinations that plague codegen.
3chrome-devtools-mcp
mcpbrowsertypescript
48.4kmostly simpleGoogle's official Chrome DevTools MCP server: exposes console, network, and performance-trace inspection as tool calls agents can drive directly, instead of a human clicking through the DevTools panel.
4aider
mcpclipython
47.9kslightly complexGit-aware CLI pair programmer; edits in-repo, supports multiple models and MCP so agents see version control and tools.
5Playwright MCP
mcpvisionbrowsertypescript
35.7kmostly simplePlaywright's official MCP server: structured browser control (navigate, click, fill, extract) via the accessibility tree rather than screenshots, so web tasks stay fast and deterministic.
6continue
idetypescript
35.3kcomplexOpen-source IDE extension (VS Code, JetBrains); in-editor completion and chat with local or API models.
7github-mcp-server
mcp
31.9kslightly complexGitHub's official MCP server (Go): repos, issues, PRs, code search, Actions. Replaces the older community `cyanheads/github-mcp-server` as the canonical way to give agents GitHub access.
8MCP Python SDK
mcppython
23.8kmostly simpleOfficial SDK to build and consume MCP servers/clients in Python; stdio and SSE transports.
9MCP TypeScript SDK
mcptypescript
13kmostly simpleOfficial MCP implementation for Node/TS; reference for the protocol.
10MCP Inspector
mcptypescript
10.6ksuper simpleGUI to test and debug MCP servers; inspect tools, resources, and prompts.
11MCP Registry
mcp
7.1kslightly complexOfficial, community-driven registry for MCP servers—the "app store" MCP clients use to discover servers. Maintained by Anthropic + ecosystem maintainers; v0.1 API frozen, production-grade.
12Agent Governance Toolkit
sandboxpython
5.6kslightly complexMicrosoft's policy-enforcement layer for autonomous agents: zero-trust identity, execution sandboxing, and OWASP Agentic Top-10 coverage sit in front of the agent loop as a **harness** security layer—the governance counterpart to Infisical's agent-vault.
13mcp-context-forge
mcppython
4.2kcomplexIBM's official AI gateway/registry/proxy that sits in front of any MCP, A2A, or REST/gRPC API: unified endpoint, centralized discovery, guardrails, and plugin support—the enterprise front door for **harness** tool calling. Graduated off the radar this cycle.
14cocoindex-code
mcpcli
2.6kmostly simpleEmbedded, tree-sitter/AST-based code-search CLI and MCP server that gives coding agents fast semantic lookups over a repo instead of grepping or re-reading whole files into context.
15agent-vault
2kmostly simpleInfisical's HTTP credential proxy that fronts secrets for Claude Code, OpenClaw, and other agent harnesses so the agent's tool calls never see raw credentials—a **harness** security layer, not an agent loop itself.
16Docker MCP Gateway
mcpsandboxcli
1.5kslightly complexDocker's official MCP CLI plugin / gateway; container-aware MCP tooling from Docker (replaces deprecated `docker/mcp-servers` path).
17puppeteer-real-browser-mcp
mcpbrowsertypescript
25mostly simplePuppeteer MCP with real-browser and anti-detection; for agents that need to drive sites that block headless.
18Better-OpenCodeMCP
mcptypescript
9mostly simpleMCP server for OpenCode/Crush: async task execution, model bridging (e.g. Claude→Gemini), process pooling.
19agentlog
memoryclipython
1super simplePersistent decision memory for any project: `remember`, `recall`, `reflect`. Single-file Python CLI that stores decisions as JSONL and uses Claude or Gemini to retrieve and synthesize patterns—Karpathy's LLM Wiki concept as a CLI.