Constants is a Model Context Protocol (MCP) server: One workspace of tools for Claude and ChatGPT: connect 600+ apps, generate media, build tools. In practice that means any MCP-compatible AI assistant can call Constants's tools directly — the model decides when to use them in a conversation or agent run.
It's a hosted (remote) server — point your client at https://www.constants.io/api/mcp and you're connected, with nothing to install locally. The current release is v2.0.0.
Constants is listed under Communication on mcp.site and works with any MCP client — Claude Desktop, Claude Code, Cursor, VS Code, Windsurf, Zed and the rest of the ecosystem — using the install snippets below. If you maintain Constants for constants-ai, claim this listing to verify ownership, earn the Verified badge, and keep the details current.