context7

context7 is an MCP server for Claude Code from bjzgcai/carter-marketplace. Its token cost is not measured, scanned A, a copy of context7, MIT.

An MCP service that fetches current documentation and code examples for software libraries and frameworks when the agent needs them. MCP is a way for an AI coding tool to call external developer tools.

In plain words
What is it for?
Use it when answering implementation questions or writing code that depends on a library or framework. It retrieves the relevant reference material on demand.
Why use it?
It helps avoid relying on outdated built-in knowledge about changing libraries and frameworks. Developers can get examples matched to the documentation available at the time.

MCP server for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: listed in a Claude config.

Part of the useful-plugin plugin — 4 commands, 2 agents, 1 hook, 3 MCP servers shipped together

One of 3 entries in .mcp.json upstream. Installing this one merges just its entry into your config; the other 2 are separate, each on its own page.

Good fit Use it when answering implementation questions or writing code that depends on a library or framework. It retrieves the relevant reference material on demand.

Compare 6 mcp servers from other repositories ↓
Install with agentmods
npx agentmods add mcp/bjzgcai/carter-marketplace/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/bjzgcai/carter-marketplace

Made for: Claude Code.

Or install useful-plugin, the plugin that ships this one along with the rest of its 4 commands, 2 agents, 1 hook, 3 MCP servers.

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/bjzgcai/carter-marketplace/context7/github.svg)](https://agentmods.dev/mcp/bjzgcai/carter-marketplace/context7)
Your own site
<a href="https://agentmods.dev/mcp/bjzgcai/carter-marketplace/context7"><img src="https://agentmods.dev/badge/mcp/bjzgcai/carter-marketplace/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/bjzgcai/carter-marketplace/context7"><img src="https://agentmods.dev/badge/mcp/bjzgcai/carter-marketplace/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 86% copy Near-identical to another mod 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 10d 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.

Origin

This is a copy

86% identical to context7 — 2 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

useful-plugin/.mcp.json · 9 lines

What it actually says

{
  "context7": {
    "command": "npx",
    "args": [
      "-y",
      "@upstash/context7-mcp"
    ]
  }
}
Same file

What else .mcp.json configures

This page is one entry in a file that holds 3. 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. 10d ago First seen · 9 lines scan A 6f9d71bbe560

Subscribe to this mod's changes

context7 is an MCP server published in the GitHub repository bjzgcai/carter-marketplace (8 stars, last pushed 7mo 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. It is 86% identical to context7, differing in 2 lines, and is treated as a copy.