Tmpstate is a Model Context Protocol (MCP) server: Zero-key temporary JSON database for agents: one tool call, no signup, no OAuth, no API keys. As an MCP server it plugs straight into AI assistants, exposing its functionality as tools the model can invoke on your behalf.
It's a hosted (remote) server — point your client at https://tmpstate.dev/mcp and you're connected, with nothing to install locally. The current release is v1.0.0.
You'll find Tmpstate in the Database category here on mcp.site; it connects to Claude Desktop, Claude Code, Cursor, VS Code, Windsurf, Zed, and any other MCP client — see the install snippets below. If you maintain Tmpstate for tmpstate.dev, claim this listing to verify ownership, earn the Verified badge, and keep the details current.
