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Flatland

Official registry Cloud and DevOps

Financial reasoning infrastructure for AI agents: typed models, deterministic compilation, receipts

Website

Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

NPM package flatland-client
Claude Code 
claude mcp add flatland -e 'FLATLAND_API_KEY=<your flatland_api_key>' -- npx -y flatland-client@0.1.4 mcp
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "flatland": {
            "command": "npx",
            "args": [
                "-y",
                "flatland-client@0.1.4",
                "mcp"
            ],
            "env": {
                "FLATLAND_API_KEY": "<your flatland_api_key>"
            }
        }
    }
}

Environment variables

  • FLATLAND_API_KEY required secret Your Flatland API key (fl_live_...). Get one at https://flatlandfi.com/install

Frequently asked questions

What is Flatland?

Financial reasoning infrastructure for AI agents: typed models, deterministic compilation, receipts

How do I install Flatland?

It runs on your machine. In Claude Code: claude mcp add flatland -e 'FLATLAND_API_KEY=<your flatland_api_key>' -- npx -y flatland-client@0.1.4 mcp. For other clients, paste the JSON configuration from this page into their MCP settings.

Does Flatland need an API key?

Yes. It expects FLATLAND_API_KEY, which you set in its configuration.

Who maintains Flatland?

It is published by com.flatlandfi. AI.tn lists it but does not maintain or endorse it.

From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.