ColdState — Deterministic Knowledge Infrastructure

Overview

ColdState is a deterministic knowledge infrastructure server that gives AI agents access to search, fetch, cite and verify facts from a 48-million-entry knowledge base. By connecting as a Model Context Protocol server, it exposes this functionality as tools your AI assistant can invoke directly, ensuring responses are grounded in verifiable data.

The service runs as a remote endpoint at https://cold-api.coldstate.ai/mcp, requiring only an API key for authentication. There is nothing to install locally—simply configure your MCP client to point to the endpoint and you gain instant access. The latest release is v0.1.0.

ColdState appears in the AI & Agents category on mcp.site and works with Claude Desktop, Claude Code, Cursor, VS Code, Windsurf, Zed and any MCP-compatible client. If you maintain ColdState for coldstate.ai, claim this listing to verify your ownership and keep the information up to date.

Installation

Settings → Connectors → Add custom connector
Name: ColdState — Deterministic Knowledge Infrastructure
URL:  https://cold-api.coldstate.ai/mcp