FIXSIM MCP Server: Install & Setup

Install FIXSIM in Claude Code

Claude Code

claude mcp add --transport http fixsim https://mcp.fixsim.com/mcp

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

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

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

Yes, most likely. Open source and no paid account or API key is mentioned in the listing. Check the provider for current pricing.

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

Run: claude mcp add --transport http fixsim https://mcp.fixsim.com/mcp

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