Windsurf Ausca ausca_prepare_invocation

How to: Windsurf Ausca ausca_prepare_invocation

client:Windsurf transport:streamable-http tool:ausca_prepare_invocation

Add Ausca to Windsurf

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

{
  "mcpServers": {
    "agent-services": {
      "serverUrl": "https://ausca.com/mcp"
    }
  }
}

02
Save the file and restart Windsurf.
03
Ask for something ausca_prepare_invocation does. Windsurf lists the server's tools on connect and calls ausca_prepare_invocation itself — you do not invoke it by name.
04
If nothing happens, check the server is running and that Ausca'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

Ausca will not start until these are set, so ausca_prepare_invocation never becomes available.

AUSCA_PRIVATE_KEY
AUSCA_MAX_PAYMENT_USD

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.

Ausca MCP server