For Claude Code Users

Your Claude Code Doesn't Know What Packages Actually Work

Claude suggests packages from its training data, not from live deprecation and security data. PatternStack fixes this by watching ~50,000 packages across six registries — and warns your agent before it suggests deprecated or abandoned code.

Setup in 30 Seconds View Pricing

The Problem with Claude's Package Suggestions

Without PatternStack

✗Suggests moment.js (deprecated, 287kb)
✗Recommends request (deprecated since 2020)
✗Proposes incompatible version combinations
✗No awareness of CVEs or security issues

With PatternStack

Suggests date-fns (maintained, tree-shakeable)
Flags breaking major versions before Claude writes them
Validates version compatibility before suggesting
CVE and deprecation awareness

How PatternStack Works with Claude Code

Add MCP Server

One command to add PatternStack to Claude Code. Works via the Model Context Protocol.

Code Normally

Ask Claude about packages, dependencies, or migrations. It automatically queries PatternStack.

Get Better Answers

Responses now include real data from production projects, not just training data.

What PatternStack Gives Your Claude Code

Live Package Intelligence

Live deprecation and abandonment status from OSV, GitHub Advisory, and Dependabot — all 50,000+ tracked packages updated in real time.

Security Awareness

Vulnerability and deprecation context to help your AI avoid known-risk packages.

Framework Context

Recommendations are partitioned by framework. Next.js projects get Next.js patterns.

All MCP Tools

Health checks, alternatives, migrations, stack validation, and more — all available to Claude Code.

Quick Start

1. Get Your API Key

2. Add MCP Server (Option A: CLI)

# Run this command in your terminal

claude mcp add patternstack -- npx -y @patternstack/mcp

Package lookups work immediately — no key needed. To watch your repo, re-add with your API key: claude mcp remove patternstack && claude mcp add patternstack -e PATTERNSTACK_API_KEY=psk_proj_... -- npx -y @patternstack/mcp

2. Add MCP Server (Option B: Manual Config)

Add to ~/.claude/mcp.json:

{
  "mcpServers": {
    "patternstack": {
      "transport": "http",
      "url": "https://patternstack.ai/api/mcp/tools/call",
      "headers": {
        "Authorization": "Bearer ts_your_api_key"
      }
    }
  }
}

3. Verify It Works

Ask Claude Code: "What packages work well with React?" or "Is lodash healthy and maintained?"

Make Your Claude Code Actually Useful

Stop your AI from suggesting deprecated packages. Start with a free watchlist.

Get Started Free