stackcrawler

Stackcrawler MCP for Claude

Connect Claude Code to Stackcrawler’s MCP server to scan websites and discover the technologies they use.
Get your API keyExplore the API

1. Get ready

Install Claude Code and get a Stackcrawler API key from your API dashboard. This guide uses Claude Code’s remote HTTP connection.

2. Add Stackcrawler

Run this in your terminal, replacing the placeholder with your API key. User scope makes the connection available across your projects.

claude mcp add --transport http --scope user stackcrawler https://api.stackcrawler.com/mcp \
  --header "Authorization: Bearer YOUR_STACKCRAWLER_API_KEY"

Keep your API key private. Do not commit it to a repository or paste it into a conversation.

3. Check the connection

Open Claude Code and run /mcp to check the Stackcrawler server status and available tools.

See the official Claude Code MCP documentation for client configuration options.

Try it out

Ask your assistant to use Stackcrawler explicitly:

  • Use Stackcrawler to scan https://example.com and explain its technology stack.
  • Use Stackcrawler to find 10 websites using Shopify with English content.
  • Use Stackcrawler to find websites using the dawn theme.
  • Use Stackcrawler to show websites where Shopify was recently detected as a new technology.

Connection troubleshooting

  • Use the full server URL, including /mcp, and the Streamable HTTP transport.
  • If authentication fails, check your API key or reconnect your Stackcrawler account.
  • Tool calls use your existing API allowance. Check your usage and subscription in the API dashboard if a request is rejected.
  • If browser sign-in cannot complete, contact Stackcrawler support. OAuth must be enabled on the hosted service and linked to your Stackcrawler account.