Scalelist MCP

The Scalelist MCP server enables AI agents to access verified B2B lead data, including work emails and mobile numbers. It allows users to find qualified leads, discover contact details, verify email validity to keep bounce rates low, and enrich CSV files with professional contact information directly within AI chat interfaces like Claude or ChatGPT.

Endpoint and access

OAuth sign-in: the first time you connect, your client opens the vendor's own authorization prompt in a browser.

OAuth sign-inEndpoint checked 2026-10-18Operated by Scalelist

MCP endpoint (Streamable HTTP)

https://mcp.scalelist.com/mcp

Vendor documentation

What you can do with it

Find qualified B2B leads with verified work emails and mobile numbers
Enrich CSV files with verified professional contact details
Verify email addresses to maintain low bounce rates
Build target lists of decision-makers directly in AI chat

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers a Streamable HTTP server. Use --scope project to write .mcp.json for the repo.

Claude Code configuration

claude mcp add --transport http scalelist-mcp https://mcp.scalelist.com/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).

Codex configuration

codex mcp add scalelist-mcp --url https://mcp.scalelist.com/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable scalelist-mcp in your MCP settings.

Cursor configuration

{
  "mcpServers": {
    "scalelist-mcp": {
      "url": "https://mcp.scalelist.com/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure). The type must be streamableHttp for a remote HTTP server.

Cline configuration

{
  "mcpServers": {
    "scalelist-mcp": {
      "type": "streamableHttp",
      "url": "https://mcp.scalelist.com/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start scalelist-mcp and inspect its tools.

VS Code configuration

{
  "servers": {
    "scalelist-mcp": {
      "type": "http",
      "url": "https://mcp.scalelist.com/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.

Gemini CLI configuration

gemini mcp add --transport http scalelist-mcp https://mcp.scalelist.com/mcp

Claude Desktop

Merge this into claude_desktop_config.json (macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\), then restart Claude Desktop.

Claude Desktop configuration

{
  "mcpServers": {
    "scalelist-mcp": {
      "url": "https://mcp.scalelist.com/mcp"
    }
  }
}

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.

Windsurf configuration

{
  "mcpServers": {
    "scalelist-mcp": {
      "serverUrl": "https://mcp.scalelist.com/mcp"
    }
  }
}

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