# Context7

40 Hacker News commenters recommended Context7 and 7 criticized it, November 2025 to November 2026. It was recommended in 10 of 13 months. It meets the Hacker Approved badge rule.

**Verdict:** Gives coding agents current library documentation over MCP, so answers rely less on outdated training data. Critics say it returns whole pages that crowd the context window.

## Why people recommend it

- Keeps library docs current for agents (6 comments): "I have some MCP servers like Context7 and Fetch that make sure the models have up to date information." ([source](https://news.ycombinator.com/item?id=46371497)) "Context7 takes care of keeping _all_ the documentation available and provides a search function." ([source](https://news.ycombinator.com/item?id=46002283)) "access to some MCP like Context7 to get up to date documentations" ([source](https://news.ycombinator.com/item?id=47003003))
- Agents can be told to use it (4 comments): "You need to give it access to look up how do things, like context7." ([source](https://news.ycombinator.com/item?id=46909690)) "You should instead positive enforcement to use tools like context7." ([source](https://news.ycombinator.com/item?id=47045503)) "they should use context7 when unsure about a library" ([source](https://news.ycombinator.com/item?id=48925287))
- Used in every session (3 comments): "Since MCP came out the quality of code has improved since there is always context7" ([source](https://news.ycombinator.com/item?id=46705817)) "Superpowers, Serena, Context7 feel like requried plugins to me." ([source](https://news.ycombinator.com/item?id=47663870)) "Context7 MCP is the one I keep enabled for all sessions" ([source](https://news.ycombinator.com/item?id=45789227))
- Helps with new or beta APIs (3 comments): "The official plugin integration removes friction, but I still manually toggle it for beta APIs or very recent changes where the indexed docs lag." ([source](https://news.ycombinator.com/item?id=46526322)) "The first is great on planning sessions and leads to better usage of new-ish libraries" ([source](https://news.ycombinator.com/item?id=46853260)) "Context7 (coming soon) great at code, way better than exa for code" ([source](https://news.ycombinator.com/item?id=49333690))

## What people warn about

- Small gains in results (3 comments): "hallucaniton rate decreased only a small bit" ([source](https://news.ycombinator.com/item?id=48246067)) "I even gave it access to a Context7 MCP server for documentation and it barely made a difference." ([source](https://news.ycombinator.com/item?id=46866331)) "which in a narrow context helps but not perfect" ([source](https://news.ycombinator.com/item?id=47207544))
- Returns too much text for context (2 comments): "If one were to point an agent to a docs website, the amount of tokens consumed would use up too much of the context window" ([source](https://news.ycombinator.com/item?id=47214494)) "context7 just returns whole pages of documentation, polluting the context window with info that isn't relevant" ([source](https://news.ycombinator.com/item?id=46100801))

## Alternatives hackers recommend

- [Playwright MCP](https://hackerapproved.com/p/playwright-mcp.md): 40 recommend
- [Chrome DevTools MCP](https://hackerapproved.com/p/chrome-devtools-mcp.md): 36 recommend
- [Serena MCP](https://hackerapproved.com/p/serena.md): 18 recommend
- [Context Mode](https://hackerapproved.com/p/context-mode.md): 16 recommend
- [Figma MCP](https://hackerapproved.com/p/figma-mcp.md): 15 recommend

## Where to get it

- [Visit the official site](https://context7.com/)

## Cite as

Hacker Approved, "Context7", https://hackerapproved.com/p/context7/ (counts from 1,795,640 Hacker News comments, November 2025 to November 2026).