Windsurf

FIXSIM for Windsurf

io.github.gammathreetrading/fixsim

Test FIX from Claude, ChatGPT, or Cursor: free sandbox FIX sessions or your own FIXSIM instances.

client:Windsurf transport:streamable-http tools:21

Install FIXSIM in Windsurf

~/.codeium/windsurf/mcp_config.json · windows: %USERPROFILE%\.codeium\windsurf\mcp_config.json

{
  "mcpServers": {
    "fixsim": {
      "serverUrl": "https://mcp.fixsim.com/mcp"
    }
  }
}

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

What Windsurf can do once it is connected

FIXSIM in other clients

FIXSIM MCP server