Coresignal MCP Server

Coresignal mcp server lets Claude, Cursor and other MCP clients work with Coresignal directly. Access comprehensive B2B data on companies, employees, and job postings for your LLMs and AI workflows.

What Coresignal does

The Coresignal MCP Server enables seamless integration of Coresignal's data with AI-powered applications. By connecting to this server, AI assistants can access fresh multi-source B2B data about companies, employees, and job postings directly within chat interfaces.

Installing the coresignal mcp server

Setup follows the standard MCP pattern: clone or install the server, then register it in your client's configuration file and restart the client. The configuration snippets on this page cover Claude Desktop, Claude Code and Cursor.

Configuration

Before the server will start you need to supply one environment variable: APIKEY_VALUE. Keep credentials in your client's env block or a secrets manager rather than committing them.

Where it fits

Developer-tool servers are usually the first ones people connect, because they turn "help me with this code" into an assistant that can actually read the repo and act on it. Coresignal sits in that group. Worth comparing against the other developer tools servers in this directory before you commit to one, since several overlap in scope but differ sharply in setup cost and permissions.

Practical notes

• This is a hosted server — you point your client at an endpoint rather than running a local process, so there is nothing to keep updated on your machine.
• It will not start until its required credentials are present, so set those before wondering why the tools never appear.
• MCP clients ask for confirmation before each tool call by default. Keep that on while you learn what the coresignal mcp server actually does with your data.
• Every entry in this directory is reviewed by hand before it goes live, and details are checked against the project's own documentation.