GrayMatter MCP Server: Install & Setup

Install GrayMatter in Claude Code

Claude Code

claude mcp add --transport http graymatter https://api-0.valkyrlabs.com/graymatter/mcp

mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)

{
  "mcpServers": {
    "graymatter": {
      "url": "https://api-0.valkyrlabs.com/graymatter/mcp"
    }
  }
}

Frequently asked questions

What does the GrayMatter MCP server do?

Secure durable memory and bounded context for AI agents, with hosted OAuth and local Lite support.

Is the GrayMatter MCP server free?

The server is free, but you will likely need an account. The server itself is free, but it connects to a service that needs an account or API key, which may have paid tiers. Check the provider for current pricing.

Does GrayMatter run locally or remotely?

Remote. Hosted by the provider. You connect with a URL, nothing to install.

How do I add GrayMatter to Claude Code?

Run: claude mcp add --transport http graymatter https://api-0.valkyrlabs.com/graymatter/mcp

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