Dry Run MCP

A Monte Carlo cash-flow simulator for small services businesses that runs 10,000 simulations of the next 52 weeks to determine the odds of running out of money, identify the most dangerous weeks, and rank the single changes that most effectively reduce financial risk.

Visit Modern Mustard Seed

Endpoint and access

No sign-in to connect and list tools. Individual tools may still need a vendor account, credentials, or permissions; check the documented prerequisites.

No sign-inEndpoint checked 2026-10-26Operated by Modern Mustard Seed

You need:No sign-in.No account or key is neededOn Team and Enterprise plans, an Owner adds it for the organization first.

MCP endpoint (Streamable HTTP)

https://mcp.modernmustardseed.com/dry-run

Vendor documentation

What you can do with it

Simulate a year of cash flow to find the odds of running short
Identify the specific week most likely to cause a cash shortage
Rank business changes that lower the risk of running out of money

Tools advertised by the last live check:

simulate_cash_year
rank_levers
list_presets

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers a Streamable HTTP server. Use --scope project to write .mcp.json for the repo.

Claude Code configuration

claude mcp add --transport http dry-run-mcp https://mcp.modernmustardseed.com/dry-run

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).

Codex configuration

codex mcp add dry-run-mcp --url https://mcp.modernmustardseed.com/dry-run

Cursor

Merge this server into .cursor/mcp.json in your project, then enable dry-run-mcp in your MCP settings.

Cursor configuration

{
  "mcpServers": {
    "dry-run-mcp": {
      "url": "https://mcp.modernmustardseed.com/dry-run"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure). The type must be streamableHttp for a remote HTTP server.

Cline configuration

{
  "mcpServers": {
    "dry-run-mcp": {
      "type": "streamableHttp",
      "url": "https://mcp.modernmustardseed.com/dry-run",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start dry-run-mcp and inspect its tools.

VS Code configuration

{
  "servers": {
    "dry-run-mcp": {
      "type": "http",
      "url": "https://mcp.modernmustardseed.com/dry-run"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.

Gemini CLI configuration

gemini mcp add --transport http dry-run-mcp https://mcp.modernmustardseed.com/dry-run

Claude Desktop

Merge this into claude_desktop_config.json (macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\), then restart Claude Desktop.

Claude Desktop configuration

{
  "mcpServers": {
    "dry-run-mcp": {
      "url": "https://mcp.modernmustardseed.com/dry-run"
    }
  }
}

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.

Windsurf configuration

{
  "mcpServers": {
    "dry-run-mcp": {
      "serverUrl": "https://mcp.modernmustardseed.com/dry-run"
    }
  }
}

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