Windsurf Proof Holdings preview_template

How to: Windsurf Proof Holdings preview_template

client:Windsurf transport:streamable-http tool:preview_template

Add Proof Holdings to Windsurf

01
Open ~/.codeium/windsurf/mcp_config.json and merge this in. Keep any servers already there.

{
  "mcpServers": {
    "mcp-server": {
      "serverUrl": "https://api.proof.holdings/mcp"
    }
  }
}

02
Save the file and restart Windsurf.
03
Ask for something preview_template does. Windsurf lists the server's tools on connect and calls preview_template itself — you do not invoke it by name.
04
If nothing happens, check the server is running and that Proof Holdings's identifier in your config matches the one above exactly.

Global only — Windsurf has no per-project MCP config. Refresh Cascade after saving. Windsurf docs

Set these first

Proof Holdings will not start until these are set, so preview_template never becomes available.

PROOF_API_KEY
PROOF_BASE_URL

Same tool, other clients

This list was read from the server itself, by connecting to it and calling tools/list on 24 September 2026. It is what the server actually exposes, not what its listing claims.

Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. The registry stores tool names only; connect the server for its live schemas.

Proof Holdings MCP server