Moltline Merchant MCP MCP server

The Moltline Merchant server provides administrative math tools for e-commerce, including calculating processor fees, charge-to-net amounts, and invoice totals. It also offers premium features for discount stacking, proration, and installment plans, operating purely on arithmetic without requiring external API connections.

Endpoint and access

No sign-in: your client connects and lists tools immediately, with no account or key.

No sign-inEndpoint checked 2026-10-05Operated by Moltline Studio

MCP endpoint (Streamable HTTP)

https://mcp.moltlinestudio.com/merchant

Vendor documentation

What you can do with it

Calculate processor fees for transactions
Determine charge-to-net amounts
Compute total invoice values
Manage discount stacking and proration

Tools advertised by the last live check:

processor_fees
charge_to_net
invoice_total
discount_stack
proration
installment_plan

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 moltline-merchant-mcp https://mcp.moltlinestudio.com/merchant

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 moltline-merchant-mcp --url https://mcp.moltlinestudio.com/merchant

Cursor

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

Cursor configuration

{
  "mcpServers": {
    "moltline-merchant-mcp": {
      "url": "https://mcp.moltlinestudio.com/merchant"
    }
  }
}

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": {
    "moltline-merchant-mcp": {
      "type": "streamableHttp",
      "url": "https://mcp.moltlinestudio.com/merchant",
      "disabled": false
    }
  }
}

VS Code

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

VS Code configuration

{
  "servers": {
    "moltline-merchant-mcp": {
      "type": "http",
      "url": "https://mcp.moltlinestudio.com/merchant"
    }
  }
}

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 moltline-merchant-mcp https://mcp.moltlinestudio.com/merchant

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": {
    "moltline-merchant-mcp": {
      "url": "https://mcp.moltlinestudio.com/merchant"
    }
  }
}

Windsurf

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

Windsurf configuration

{
  "mcpServers": {
    "moltline-merchant-mcp": {
      "serverUrl": "https://mcp.moltlinestudio.com/merchant"
    }
  }
}

See all 353

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