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mcp/harbor
Verified official

Signal by StackEnhance MCP

v1.2.0

com.stackenhance/signal

How often 750+ e-commerce brands send marketing emails: counts, send dates, recent subject lines.

transport:streamable-http tools:3
View source Website

Target client

run in your project directory 

claude mcp add --transport http signal https://mcp.stackenhance.com/mcp

setup guides: Claude Code Claude Desktop Cursor VS Code Zed Windsurf Cline Gemini CLI Grok ChatGPT Claude.ai LangChain

Adds it for this project only. Append --scope user to make it available everywhere. Claude Code docs

get_brand_email_frequency Read-only

get brand email frequency

get_brand_summary Read-only

get brand summary

find_brands Read-only

find brands

All 3 tools, one page each

Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. Check the server's own documentation before granting access.