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context7

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

A tool that fetches current documentation and code examples for software libraries and frameworks when needed. It helps an agent use information newer than its built-in training knowledge.

In plain words
What is it for?
Use it when answering questions or writing code that depends on a library or framework's current documentation. It runs locally through the Context7 MCP package.
Why use it?
It reduces the risk of relying on outdated APIs or examples. Documentation is retrieved on demand rather than assumed from memory.

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 y-context7 plugin — 1 MCP server shipped together

not rated 2repo 1mo ago A scan tokens not measured copy · 86% MIT

Good fit Use it when answering questions or writing code that depends on a library or framework's current documentation. It runs locally through the Context7 MCP package.

Compare 6 mcp servers from other repositories ↓
Install with agentmods
npx agentmods add mcp/yesterday-ai/skills/y-context7-context7
View source ↗ Yesterday-AI/skills
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/Yesterday-AI/skills

Made for: Claude Code.

Or install y-context7, the plugin that ships this one along with the rest of its 1 MCP server.

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/yesterday-ai/skills/y-context7-context7/github.svg)](https://agentmods.dev/mcp/yesterday-ai/skills/y-context7-context7)
Your own site
<a href="https://agentmods.dev/mcp/yesterday-ai/skills/y-context7-context7"><img src="https://agentmods.dev/badge/mcp/yesterday-ai/skills/y-context7-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/yesterday-ai/skills/y-context7-context7"><img src="https://agentmods.dev/badge/mcp/yesterday-ai/skills/y-context7-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 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.

Origin

This is a copy

86% identical to context7 — 1 line 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.

plugins/y-context7/.mcp.json · 10 lines

What it actually says

{
  "context7": {
    "type": "stdio",
    "command": "npx",
    "args": [
      "-y",
      "@upstash/context7-mcp@latest"
    ]
  }
}
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 · 10 lines scan A 42de3bd1b70b

Subscribe to this mod's changes

context7 is an MCP server published in the GitHub repository Yesterday-AI/skills (2 stars, last pushed 1mo 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 1 line, and is treated as a copy.

Building agentsClaude Codeagent-skillsai-agentsclaude-code-pluginscursorcursor-plugins
Related

context7 compared with mcp servers from other repositories

context7 next to 6 mcp servers from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
context7Yesterday-AI/skillsMCP server21mo agoMITA—Claude Code
seotrendsmcp-ai/Trends-MCPMCP server4810d agoMITA—Claude Code, Codex, Cursor, Gemini CLI, OpenCode
chronicle-mcpLeviathan0x0/Chronicle-MCPMCP server319d agoMITA—Claude Code, Codex, Cursor, Gemini CLI, OpenCode
mcp-google-docsA1-x-Tech/mcp-google-docsMCP server08d agoMITA—Cursor
chisthiropon164/chist-serverMCP server0todayMITA—Claude Code, Codex, Cursor, Gemini CLI, OpenCode
kaidn-mcpKaidn-io/kaidn-mcpMCP server02mo agoMITA—Claude Code, Codex, Cursor, Gemini CLI, OpenCode
hookray-mcpShotaTanikawa/hookray-mcpMCP server06mo agoMITA—Claude Code, Codex, Cursor, Gemini CLI, OpenCode