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| ❌ Without Context7 | |
| LLMs rely on outdated or generic information about the libraries you use. You get: | |
| ❌ Code examples are outdated and based on year-old training data | |
| ❌ Hallucinated APIs that don't even exist | |
| ❌ Generic answers for old package versions | |
| ✅ With Context7 | |
| Context7 MCP pulls up-to-date, version-specific documentation and code examples straight from the source — and places them directly into your prompt. | |
| Add use context7 to your prompt (or set up a rule to auto-invoke): | |
| Create a Next.js middleware that checks for a valid JWT in cookies | |
| and redirects unauthenticated users to `/login`. use context7 | |
| Configure a Cloudflare Worker script to cache | |
| JSON API responses for five minutes. use context7 | |
| Context7 fetches up-to-date code examples and documentation right into your LLM's context. No tab-switching, no hallucinated APIs that don't exist, no outdated code generation. | |
| Installation | |
| Note | |
| API Key Recommended: Get a free API key at context7.com/dashboard for higher rate limits. | |
| Install in Cursor | |
| Install MCP Server | |
| Install MCP Server | |
| Install in Cursor | |
| Install MCP Server | |
| Install MCP Server | |
| Install in Cursor | |
| Install MCP Server | |
| Install MCP Server | |
| Install in Claude Code | |
| Install in Claude Code | |
| Install in Claude Code | |
| Install in Opencode | |
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| Install in Opencode | |
| Other IDEs and Clients → | |
| OAuth Authentication | |
| OAuth Authentication | |
| Important Tips | |
| Add a Rule | |
| To avoid typing use context7 in every prompt, add a rule to your MCP client to automatically invoke Context7 for code-related questions: | |
| Cursor: Cursor Settings > Rules | |
| Claude Code: CLAUDE.md | |
| Or the equivalent in your MCP client | |
| Example rule: | |
| Always use Context7 MCP when I need library/API documentation, code generation, setup or configuration steps without me having to explicitly ask. | |
| Use Library Id | |
| If you already know exactly which library you want to use, add its Context7 ID to your prompt. That way, Context7 MCP server can skip the library-matching step and directly continue with retrieving docs. | |
| Implement basic authentication with Supabase. use library /supabase/supabase for API and docs. | |
| The slash syntax tells the MCP tool exactly which library to load docs for. | |
| Specify a Version | |
| To get documentation for a specific library version, just mention the version in your prompt: | |
| How do I set up Next.js 14 middleware? use context7 | |
| Context7 will automatically match the appropriate version. | |
| Available Tools | |
| Context7 MCP provides the following tools that LLMs can use: | |
| resolve-library-id: Resolves a general library name into a Context7-compatible library ID. | |
| query (required): The user's question or task (used to rank results by relevance) | |
| libraryName (required): The name of the library to search for | |
| query-docs: Retrieves documentation for a library using a Context7-compatible library ID. | |
| libraryId (required): Exact Context7-compatible library ID (e.g., /mongodb/docs, /vercel/next.js) | |
| query (required): The question or task to get relevant documentation for | |
| More Documentation | |
| More MCP Clients - Installation for 30+ clients | |
| Adding Libraries - Submit your library to Context7 | |
| Troubleshooting - Common issues and solutions | |
| API Reference - REST API documentation | |
| Developer Guide - Run Context7 MCP locally | |
| Disclaimer | |
| 1- Context7 projects are community-contributed and while we strive to maintain high quality, we cannot guarantee the accuracy, completeness, or security of all library documentation. Projects listed in Context7 are developed and maintained by their respective owners, not by Context7. If you encounter any suspicious, inappropriate, or potentially harmful content, please use the "Report" button on the project page to notify us immediately. We take all reports seriously and will review flagged content promptly to maintain the integrity and safety of our platform. By using Context7, you acknowledge that you do so at your own discretion and risk. | |
| 2- This repository hosts the MCP server’s source code. The supporting components — API backend, parsing engine, and crawling engine — are private and not part of this repository. | |
| 🤝 Connect with Us | |
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| 📺 Context7 In Media | |
| Better Stack: "Free Tool Makes Cursor 10x Smarter" | |
| Cole Medin: "This is Hands Down the BEST MCP Server for AI Coding Assistants" | |
| Income Stream Surfers: "Context7 + SequentialThinking MCPs: Is This AGI?" | |
| Julian Goldie SEO: "Context7: New MCP AI Agent Update" | |
| JeredBlu: "Context 7 MCP: Get Documentation Instantly + VS Code Setup" | |
| Income Stream Surfers: "Context7: The New MCP Server That Will CHANGE AI Coding" | |
| AICodeKing: "Context7 + Cline & RooCode: This MCP Server Makes CLINE 100X MORE EFFECTIVE!" | |
| Sean Kochel: "5 MCP Servers For Vibe Coding Glory (Just Plug-In & Go)" | |
| ⭐ Star History | |
| Star History Chart | |
| 📄 License | |
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| MCP Registry | |
| ContextStream MCP Server | |
| ContextStream MCP Server | |
| Get set up in 30 seconds (recommended): | |
| npx -y @contextstream/mcp-server setup | |
| This wizard authenticates you, creates/stores an API key, installs editor rules, and writes MCP config files. | |
| Persistent memory, semantic search, and code intelligence for any MCP-compatible AI tool (Cursor, Claude Code, Windsurf, VS Code, Claude Desktop, Codex CLI, etc.). | |
| At a glance: | |
| Shared "brain" for decisions, preferences, notes (including implementation notes), lessons, tasks, and project context. | |
| Search + analysis across sessions with consistent context (semantic/hybrid/keyword + graph tools). | |
| v0.4.x consolidated domain tools (~11 tools) for ~75% lower tool-registry token overhead vs previous versions. | |
| Just Ask | |
| You don't need to memorize tool names. Describe what you want and your AI will call the right ContextStream tools: | |
| You say… ContextStream does… | |
| "session summary" Summarizes current workspace/project context | |
| "what did we decide about auth?" Recalls decisions related to authentication | |
| "remember we're using PostgreSQL" Captures that fact for future sessions | |
| "search for payment code" Searches your codebase semantically/hybrid/keyword | |
| "what depends on UserService?" Analyzes dependency graph & impact | |
| Tip: For best results, add the recommended editor rules so your AI reliably calls session_init / context_smart when appropriate: | |
| https://contextstream.io/docs/quickstart | |
| ContextStream in action | |
| Choose Your Mode (Token Footprint) | |
| MCP clients often inject the tool catalog into the model context. v0.4.x is designed to keep that overhead small. | |
| Mode What it exposes Best for Enable | |
| Consolidated (default) ~11 domain tools with action / mode dispatch Most users (recommended) CONTEXTSTREAM_CONSOLIDATED=true | |
| Router (extreme minimization) ~2 meta-tools (contextstream, contextstream_help) Tight context budgets / many MCP servers CONTEXTSTREAM_PROGRESSIVE_MODE=true | |
| Legacy (granular tools) Older light/standard/complete toolsets Back-compat / old prompts CONTEXTSTREAM_CONSOLIDATED=false | |
| Note: The env var name for Router mode is CONTEXTSTREAM_PROGRESSIVE_MODE (historical naming). It enables the ~2-tool "router" surface. | |
| Features | |
| Consolidated domain tools (v0.4.x): short tool list with action/mode dispatch | |
| Session-aware context loading (session_init, context_smart) | |
| Memory capture + recall (decisions, preferences, notes, implementation notes, lessons, tasks, bugs) | |
| Code search (semantic, hybrid, keyword, pattern) | |
| Knowledge graph + code analysis (dependencies, impact, call paths, circular deps, unused code) | |
| Graph ingestion for full graph builds (graph(action="ingest")) | |
| Local repo ingestion for indexing (project(action="ingest_local")) | |
| Auto-context: on first tool call in a new session, the server can auto-initialize context | |
| ⚠️ Search-First Rule: For best results, your AI should use ContextStream search(mode="hybrid") before local tools like Glob/Grep/Read. This is enforced via editor rules and context_smart responses. | |
| Graph Tiers | |
| Tier Capabilities | |
| Pro (Graph-Lite) Module-level import graph, dependencies, and 1-hop impact | |
| Elite/Team (Full Graph) Module + call + dataflow + type layers, plus full graph ingestion | |
| Requirements | |
| Node.js 18+ | |
| A ContextStream account | |
| Auth via API key or JWT | |
| Default API URL: https://api.contextstream.io | |
| Quickstart (2 minutes) | |
| 1) Run the Setup Wizard (recommended) | |
| The wizard: | |
| Authenticates (browser/device login by default) | |
| Creates/stores an API key | |
| Installs recommended editor rules (optional) | |
| Writes MCP config files for supported tools | |
| npx -y @contextstream/mcp-server setup | |
| Useful flags: | |
| Flag Description | |
| --dry-run Preview without writing files | |
| Notes: | |
| The wizard stores credentials at ~/.contextstream/credentials.json for convenience. Delete it to force a fresh login. | |
| Codex CLI MCP config is global-only (~/.codex/config.toml), so the wizard writes Codex config globally when selected. | |
| Some tools still require UI/CLI setup (the wizard will tell you when it can't write a config). | |
| 2) Run the MCP Server | |
| Recommended (works well with MCP configs): | |
| npx -y @contextstream/mcp-server | |
| Or install globally: | |
| npm install -g @contextstream/mcp-server | |
| contextstream-mcp | |
| 3) Keeping Updated | |
| If you use npx: Restart your AI tool/editor and run ContextStream again | |
| (or pin the version: npx -y @contextstream/mcp-server@0.4.3) | |
| If you installed globally: | |
| npm update -g @contextstream/mcp-server | |
| After updating, restart your AI tool/editor so it reloads the tool catalog. | |
| Configure Your MCP Client (Manual) | |
| If you ran the setup wizard, you can usually skip this. | |
| Cursor / Windsurf / Claude Desktop (JSON) | |
| These clients use an mcpServers JSON config: | |
| Client Config path | |
| Cursor ~/.cursor/mcp.json (global) or .cursor/mcp.json (project) | |
| Windsurf ~/.codeium/windsurf/mcp_config.json | |
| Claude Desktop (macOS) ~/Library/Application Support/Claude/claude_desktop_config.json | |
| Claude Desktop (Windows) %APPDATA%\Claude\claude_desktop_config.json | |
| Consolidated (default): | |
| { | |
| "mcpServers": { | |
| "contextstream": { | |
| "command": "npx", | |
| "args": ["-y", "@contextstream/mcp-server"], | |
| "env": { | |
| "CONTEXTSTREAM_API_URL": "https://api.contextstream.io", | |
| "CONTEXTSTREAM_API_KEY": "YOUR_API_KEY" | |
| } | |
| } | |
| } | |
| } | |
| Router mode (~2 meta-tools): | |
| { | |
| "mcpServers": { | |
| "contextstream": { | |
| "command": "npx", | |
| "args": ["-y", "@contextstream/mcp-server"], | |
| "env": { | |
| "CONTEXTSTREAM_API_URL": "https://api.contextstream.io", | |
| "CONTEXTSTREAM_API_KEY": "YOUR_API_KEY", | |
| "CONTEXTSTREAM_PROGRESSIVE_MODE": "true" | |
| } | |
| } | |
| } | |
| } | |
| VS Code (.vscode/mcp.json) | |
| VS Code uses a top-level servers map: | |
| { | |
| "servers": { | |
| "contextstream": { | |
| "type": "stdio", | |
| "command": "npx", | |
| "args": ["-y", "@contextstream/mcp-server"], | |
| "env": { | |
| "CONTEXTSTREAM_API_URL": "https://api.contextstream.io", | |
| "CONTEXTSTREAM_API_KEY": "YOUR_API_KEY" | |
| } | |
| } | |
| } | |
| } | |
| Strong recommendation: Use inputs so you don't commit secrets: | |
| { | |
| "servers": { | |
| "contextstream": { | |
| "type": "stdio", | |
| "command": "npx", | |
| "args": ["-y", "@contextstream/mcp-server"], | |
| "env": { | |
| "CONTEXTSTREAM_API_URL": "https://api.contextstream.io", | |
| "CONTEXTSTREAM_API_KEY": "${input:contextstreamApiKey}" | |
| } | |
| } | |
| }, | |
| "inputs": [ | |
| { | |
| "id": "contextstreamApiKey", | |
| "type": "promptString", | |
| "description": "ContextStream API Key", | |
| "password": true | |
| } | |
| ] | |
| } | |
| Claude Code (CLI) | |
| User scope (all projects): | |
| claude mcp add --transport stdio contextstream --scope user \ | |
| --env CONTEXTSTREAM_API_URL=https://api.contextstream.io \ | |
| --env CONTEXTSTREAM_API_KEY=YOUR_KEY \ | |
| -- npx -y @contextstream/mcp-server | |
| Router mode: | |
| claude mcp add --transport stdio contextstream --scope user \ | |
| --env CONTEXTSTREAM_API_URL=https://api.contextstream.io \ | |
| --env CONTEXTSTREAM_API_KEY=YOUR_KEY \ | |
| --env CONTEXTSTREAM_PROGRESSIVE_MODE=true \ | |
| -- npx -y @contextstream/mcp-server | |
| Windows caveat (native Windows, not WSL): if npx isn't found, use cmd /c npx -y @contextstream/mcp-server after --. | |
| Codex CLI (~/.codex/config.toml) | |
| [mcp_servers.contextstream] | |
| command = "npx" | |
| args = ["-y", "@contextstream/mcp-server"] | |
| [mcp_servers.contextstream.env] | |
| CONTEXTSTREAM_API_URL = "https://api.contextstream.io" | |
| CONTEXTSTREAM_API_KEY = "YOUR_API_KEY" | |
| Antigravity (Google) | |
| Antigravity uses project-scoped .mcp.json files with the same format as Cursor/Claude Desktop: | |
| Project configuration (.mcp.json in project root): | |
| { | |
| "mcpServers": { | |
| "contextstream": { | |
| "command": "npx", | |
| "args": ["-y", "@contextstream/mcp-server"], | |
| "env": { | |
| "CONTEXTSTREAM_API_URL": "https://api.contextstream.io", | |
| "CONTEXTSTREAM_API_KEY": "YOUR_API_KEY" | |
| } | |
| } | |
| } | |
| } | |
| Windows users: Use cmd /c npx wrapper: | |
| { | |
| "mcpServers": { | |
| "contextstream": { | |
| "command": "cmd", | |
| "args": ["/c", "npx", "-y", "@contextstream/mcp-server"], | |
| "env": { | |
| "CONTEXTSTREAM_API_URL": "https://api.contextstream.io", | |
| "CONTEXTSTREAM_API_KEY": "YOUR_API_KEY" | |
| } | |
| } | |
| } | |
| } | |
| After adding the config, access via the "..." menu → "MCP Servers" → "View raw config" to verify. | |
| Rules files: | |
| Global rules: ~/.gemini/GEMINI.md | |
| Workspace rules: .agent/rules/contextstream.md | |
| Tool Overview (v0.4.x Consolidated) | |
| In consolidated mode, you call domain tools with action / mode: | |
| Core | |
| Tool Description | |
| session_init Initialize workspace/project context | |
| context_smart Retrieve the best bounded context for the current message | |
| Domain Tools | |
| Tool Description | |
| search mode=semantic|hybrid|keyword|pattern | |
| session action=capture|recall|remember|get_lessons|capture_lesson|... | |
| memory Events + nodes CRUD, decisions, lessons, etc. | |
| graph Dependencies, impact, call_path, ingest, etc. | |
| project Indexing, ingest_local, stats, files, etc. | |
| workspace List, get, associate, bootstrap | |
| reminder List, create, snooze, complete, dismiss | |
| integration provider=slack|github, search, activity, etc. | |
| help Tools, auth, version, editor_rules | |
| Examples | |
| search(mode="semantic", query="auth middleware", limit=3) | |
| memory(action="create_node", node_type="decision", title="Auth strategy", content="...") | |
| graph(action="impact", target="UserService") | |
| Full tool catalog: https://contextstream.io/docs/mcp/tools | |
| Authentication | |
| Set one of: | |
| Variable Use case | |
| CONTEXTSTREAM_API_KEY Recommended for local/dev | |
| CONTEXTSTREAM_JWT Useful for hosted/user-session flows | |
| Environment Variables | |
| Required | |
| Variable Description | |
| CONTEXTSTREAM_API_URL Base API URL (default https://api.contextstream.io) | |
| CONTEXTSTREAM_API_KEY API key (unless using JWT) | |
| CONTEXTSTREAM_JWT JWT (unless using API key) | |
| Token + Tool Surface Controls | |
| Variable Description | |
| CONTEXTSTREAM_CONSOLIDATED true (default in v0.4.x) uses consolidated domain tools | |
| CONTEXTSTREAM_PROGRESSIVE_MODE Enables Router mode (~2 meta-tools) | |
| CONTEXTSTREAM_CONTEXT_PACK Enable Context Pack for context_smart (code + graph + distill). Defaults to true | |
| CONTEXTSTREAM_TOOLSET Legacy granular tool bundle: light / standard / complete (only when consolidated is off) | |
| CONTEXTSTREAM_TOOL_ALLOWLIST Comma-separated tool names to expose (legacy granular mode) | |
| CONTEXTSTREAM_SCHEMA_MODE Reduce schema verbosity; e.g., compact | |
| CONTEXTSTREAM_OUTPUT_FORMAT Output formatting; e.g., compact / pretty | |
| CONTEXTSTREAM_SEARCH_LIMIT Default MCP search limit (default: 3) | |
| CONTEXTSTREAM_SEARCH_MAX_CHARS Max chars per search result content (default: 400) | |
| Optional Defaults | |
| Variable Description | |
| CONTEXTSTREAM_WORKSPACE_ID Default workspace fallback | |
| CONTEXTSTREAM_PROJECT_ID Default project ID fallback | |
| CONTEXTSTREAM_USER_AGENT Custom user agent string | |
| CONTEXTSTREAM_PRO_TOOLS Comma-separated tool names treated as PRO | |
| CONTEXTSTREAM_UPGRADE_URL Upgrade link for Free users calling PRO tools | |
| Migration Notes (pre-0.4.x → 0.4.x) | |
| Most workflows just work, but tool names change in consolidated mode. | |
| Before (granular) After (consolidated) | |
| search_semantic(query="auth") search(mode="semantic", query="auth") | |
| session_capture(...) session(action="capture", ...) | |
| graph_dependencies(...) graph(action="dependencies", ...) | |
| If you rely on granular tool names, you can temporarily set: | |
| CONTEXTSTREAM_CONSOLIDATED=false | |
| Troubleshooting | |
| Issue Solution | |
| Tools not appearing Restart the client after editing MCP config; confirm Node 18+ is available in the client runtime | |
| Unauthorized / 401 Verify CONTEXTSTREAM_API_URL + CONTEXTSTREAM_API_KEY (or JWT) | |
| Wrong workspace/project Run session_init and/or associate your folder with the correct workspace | |
| Client warns about tool context size Use Router mode (CONTEXTSTREAM_PROGRESSIVE_MODE=true), or keep consolidated mode and reduce schema/output verbosity | |
| Development | |
| git clone https://github.com/contextstream/mcp-server.git | |
| cd mcp-server | |
| npm install | |
| npm run dev | |
| npm run typecheck | |
| npm run build | |
| Links | |
| Resource URL | |
| Website https://contextstream.io | |
| Docs https://contextstream.io/docs/mcp | |
| Tool Catalog https://contextstream.io/docs/mcp/tools | |
| Pricing https://contextstream.io/pricing | |
| npm https://www.npmjs.com/package/@contextstream/mcp-server | |
| GitHub https://github.com/contextstream/mcp-server | |
| License | |
| MIT | |
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| ContextStream MCP Server | |
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| ContextStream MCP server for code context, memory, search, and AI tools. | |
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