---
type: source
title: "This MCP Server for AI Coding Assistants Will 10x Your Productivity"
description: "Context7, a free MCP server, gives AI coding assistants instant, up-to-date, example-rich documentation via RAG so they stop hallucinating APIs for the tools and frameworks you build with."
youtube_id: G7gK8H6u7Rs
url: https://www.youtube.com/watch?v=G7gK8H6u7Rs
slug: this-mcp-server-for-ai-coding-assistants-will-10x-your-productivity
published: 2025-04-20
duration: "0:15:33"
recency_rank: 98
raw: "../raw/this-mcp-server-for-ai-coding-assistants-will-10x-your-productivity.md"
tags: [mcp, context7, ai-coding, rag]
created: 2026-07-21
updated: 2026-07-21
---

# This MCP Server for AI Coding Assistants Will 10x Your Productivity

Cole introduces Context7, a free MCP server that solves the biggest limitation of AI coding assistants: hallucinating APIs and giving generic answers from outdated package versions. Context7 indexes nearly 1,900 tools and frameworks (Next.js, MongoDB, Supabase, Pydantic AI, React, LangGraph, MCP, and more) as curated, example-heavy documentation snippets that an assistant can retrieve on demand rather than dumping an entire llms.txt file into context. The curation around code examples is what Cole argues makes it provably more powerful than the custom-docs feature baked into tools like Cursor.

The server exposes two tools: resolve-library-id (turn a search term like 'supabase' into an exact documentation ID) and get-library-docs (perform RAG over that library for a chosen topic and token budget). Because the agent itself reasons about the topic and how many tokens to fetch, you can steer it through global rules (Cole starts at 5,000 tokens, escalates to 20,000 if needed, and falls back to a Brave web-search MCP). He installs it in Windsurf by pasting the JSON config into the MCP config file.

To demonstrate, Cole runs a meta example: using Context7 inside Windsurf to build a Pydantic AI agent that itself integrates Context7 as an MCP server, with model/base-URL as environment variables and a CLI to chat with it. The agent makes resolve-library-id then get-library-docs calls, pulls back the familiar Pydantic AI example chunks, and after a couple of off-camera iterations produces 13 working files. He then queries the running agent for Supabase docs and real-time-changes code, showing the whole retrieval loop working end to end without ever scraping or embedding docs himself.

## Concepts covered

- [Retrieval-Augmented Generation (RAG)](../concepts/rag.md)
- [Context Engineering](../concepts/context-engineering.md)
- [Model Context Protocol (MCP)](../concepts/mcp.md)
- [Global Rules](../concepts/global-rules.md)
- [AI Coding Harness](../concepts/ai-coding-harness.md)
- [Agentic Coding](../concepts/agentic-coding.md)
- [Chunking](../concepts/chunking.md)

## Entities

- [Context7](../entities/tools/context7.md)
- [MCP (Model Context Protocol)](../entities/tools/mcp.md)
- [Windsurf](../entities/tools/windsurf.md)
- [Cursor](../entities/tools/cursor.md)
- [Pydantic AI](../entities/tools/pydantic-ai.md)
- [Supabase](../entities/tools/supabase.md)
- [Brave Search API](../entities/tools/brave-search.md)
- [Cole Medin](../entities/people/cole-medin.md)

## Key moments

- **[0:00:15]** Core problem: AI coding assistants hallucinate on specific tools/frameworks; we need instant RAG for their docs
- **[0:00:34]** Introduces Context7 as a free tool that provides that context
- **[0:00:48]** Homepage tour: 1,856 tools/frameworks available to add for RAG over documentation
- **[0:02:17]** Why Context7 is better: curated example snippets, not a dumped llms.txt file
- **[0:04:44]** Installing Context7 in Windsurf by pasting JSON config into MCP config
- **[0:05:29]** The two tools: resolve-library-id and get-library-docs (agent picks topic + token count)
- **[0:07:26]** Steering token budget via global rules (5k -> 20k -> Brave fallback)
- **[0:07:55]** Meta demo: build a Pydantic AI agent in Windsurf that itself uses Context7
- **[0:13:21]** Running the finished agent and querying live Supabase docs through Context7

## Transcript

[Raw transcript](../raw/this-mcp-server-for-ai-coding-assistants-will-10x-your-productivity.md)
