context7

context7 is an MCP server for Claude Code, Codex, Cursor, Gemini CLI, OpenCode from krzemienski/claude-code-builder. Its token cost is not measured, scanned A, original, MIT.

An MCP server that gives the coding agent access to documentation and library information. MCP is a standard way for an agent to connect to external tools and data sources.

In plain words
What is it for?
Use it whenever the project requires a documentation lookup or information about a software library.
Why use it?
It provides a designated source for looking up documentation while working on code.

MCP server for Claude CodeCodexCursorGemini CLIOpenCode

Written for no agent in particular: it speaks MCP, so any client can run it. Also seen: listed in a Claude config.

One of 5 entries in .mcp.json upstream. Installing this one merges just its entry into your config; the other 4 are separate, each on its own page.

Good fit Use it whenever the project requires a documentation lookup or information about a software library.

Compare 6 mcp servers from other repositories ↓
Install with agentmods
npx agentmods add mcp/krzemienski/claude-code-builder/context7
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Clone the repo
git clone --depth 1 https://github.com/krzemienski/claude-code-builder

Made for: Claude Code, Codex, Cursor, Gemini CLI, OpenCode.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for context7

README.md
[![agentmods](https://agentmods.dev/badge/mcp/krzemienski/claude-code-builder/context7/github.svg)](https://agentmods.dev/mcp/krzemienski/claude-code-builder/context7)
Your own site
<a href="https://agentmods.dev/mcp/krzemienski/claude-code-builder/context7"><img src="https://agentmods.dev/badge/mcp/krzemienski/claude-code-builder/context7/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for context7

Your own site · 80×15
<a href="https://agentmods.dev/mcp/krzemienski/claude-code-builder/context7"><img src="https://agentmods.dev/badge/mcp/krzemienski/claude-code-builder/context7.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session not measured What this adds to a session before it is invoked.
When invoked not measured Not applicable: nothing here is loaded into a session.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Security

Grade A, and why

context7 scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.mcp.json · 11 lines

What it actually says

{
  "context7": {
    "command": "npx",
    "args": [
      "@context/mcp"
    ],
    "description": "Access documentation and library information",
    "required": true,
    "usage": "MANDATORY for all documentation lookups"
  }
}
Same file

What else .mcp.json configures

This page is one entry in a file that holds 5. Installing the file brings all of them; each is measured and scanned on its own page.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 1mo ago First seen · 11 lines scan A 5b6ec68f330f

Subscribe to this mod's changes

context7 is an MCP server published in the GitHub repository krzemienski/claude-code-builder (25 stars, last pushed 11mo ago), licensed MIT. Its token cost is not measured: an MCP server costs its tool schemas, not its config file. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Related

Other mcp servers, from other repositories

github

Lets the agent work with GitHub: search code, read and create issues and pull requests, and manage repositories through the GitHub API. Runs locally from the @modelcontextprotocol/server-github npm package. Needs 1 environment variable to run.

Wania-Kazmi/claude-code-autonomous-agent-workflow · not measured

filesystem

Gives the agent read and write access to a set of allowed directories on the local filesystem. Runs locally from the @modelcontextprotocol/server-filesystem npm package.

Wania-Kazmi/claude-code-autonomous-agent-workflow · not measured

sequential-thinking

Adds a structured step-by-step reasoning tool the agent can call to break a problem into revisable thoughts. Runs locally from the @modelcontextprotocol/server-sequential-thinking npm package.

Wania-Kazmi/claude-code-autonomous-agent-workflow · not measured

firecrawl

Lets the agent scrape, crawl and search the web through Firecrawl, returning clean markdown. Runs locally from the firecrawl-mcp npm package. Needs 1 environment variable to run.

Wania-Kazmi/claude-code-autonomous-agent-workflow · not measured

memory

Gives the agent a persistent knowledge graph it can write facts to and recall across sessions. Runs locally from the @modelcontextprotocol/server-memory npm package.

Wania-Kazmi/claude-code-autonomous-agent-workflow · not measured

context7

MCP server "context7" as configured in Wania-Kazmi/claude-code-autonomous-agent-workflow. Runs locally from the @context7/mcp-server npm package.

Wania-Kazmi/claude-code-autonomous-agent-workflow · not measured