Moltline Merchant Maths is a remote MCP server that gives an AI agent 6 tools, among them charge_to_net, discount_stack, installment_plan. It answers at https://mcp.moltlinestudio.com/merchant over streamable HTTP, and it listed its tools to an anonymous client, so no sign-in was needed for that. Our probes reached it 10 of 10 times since 5 September 2026; the last check, on 18 October 2026, succeeded.
Hosted MCP server for commerce math: fees, invoice totals, discounts, proration, installment plans.
Description as the publisher wrote it.
| Tool | What it does |
|---|---|
charge_to_net | Compute the gross price to charge so you net a target after fees. FREE. 'Charge X to receive Y' after percentage + fixed processor fees. Typical input {"net_target": 100, "pct_fee": 2.9, "fixed_fee": 0.30} returns {"charge": 103.4, "fee": 3 Inputs: net_target, pct_fee, fixed_fee |
discount_stack | Stack discounts correctly: sequential vs additive comparison. PREMIUM (license). The two methods differ — this shows both, the final price, and the true total discount. Typical input {"price": 200, "discounts_pct": [20, 10]} returns {"origi Inputs: price, discounts_pct |
installment_plan | Split a total into an installment schedule with optional deposit. PREMIUM (license). Rounding remainders land on the final payment so the schedule always sums exactly. Typical input {"total": 1000, "installments": 3, "deposit_pct": 10} retu Inputs: total, installments, deposit_pct |
invoice_total | Total an invoice: per-line totals, subtotal, discount, tax, grand total. FREE. Typical input {"line_items": [{"desc": "Design", "qty": 2, "unit_price": 50}], "tax_pct": 8.5, "discount_pct": 10} returns {"lines": [{"desc": "Design", "qty": 2 Inputs: line_items, tax_pct, discount_pct |
processor_fees | Break down payment-processor fees: fee, net, and effective rate. FREE. Uses editable presets for stripe/paypal/square/shopify (verify current rates) or your own custom_pct + custom_fixed. Typical input {"amount": 1000, "processor": "stripe" Inputs: amount, processor, custom_pct, custom_fixed, transactions |
proration | Compute a prorated charge or refund for a partial billing period. PREMIUM (license). Typical input {"amount_per_period": 90, "days_used": 10, "days_in_period": 30} returns {"days_used": 10, "days_in_period": 30, "prorated_charge": 30.0, "pr Inputs: amount_per_period, days_used, days_in_period, refund_mode |
Every block below points at https://mcp.moltlinestudio.com/merchant. Pick your client and copy.
claude mcp add --transport http moltline-merchant-maths https://mcp.moltlinestudio.com/merchant
{
"mcpServers": {
"moltline-merchant-maths": {
"command": "npx",
"args": ["-y", "mcp-remote", "https://mcp.moltlinestudio.com/merchant"]
}
}
}{
"mcpServers": {
"moltline-merchant-maths": {
"url": "https://mcp.moltlinestudio.com/merchant"
}
}
}{
"servers": {
"moltline-merchant-maths": {
"type": "http",
"url": "https://mcp.moltlinestudio.com/merchant"
}
}
}{
"context_servers": {
"moltline-merchant-maths": {
"url": "https://mcp.moltlinestudio.com/merchant"
}
}
}{
"mcpServers": {
"moltline-merchant-maths": {
"serverUrl": "https://mcp.moltlinestudio.com/merchant"
}
}
}{
"mcpServers": {
"moltline-merchant-maths": {
"url": "https://mcp.moltlinestudio.com/merchant"
}
}
}name: Moltline Merchant Maths
version: 0.0.1
schema: v1
mcpServers:
- name: Moltline Merchant Maths
type: streamable-http
url: https://mcp.moltlinestudio.com/merchant{
"mcpServers": {
"moltline-merchant-maths": {
"httpUrl": "https://mcp.moltlinestudio.com/merchant"
}
}
}{
"mcpServers": {
"moltline-merchant-maths": {
"type": "http",
"url": "https://mcp.moltlinestudio.com/merchant"
}
}
}{
"mcpServers": {
"moltline-merchant-maths": {
"url": "https://mcp.moltlinestudio.com/merchant"
}
}
}goose://extension?url=https%3A%2F%2Fmcp.moltlinestudio.com%2Fmerchant&type=streamable_http&id=moltline-merchant-maths&name=Moltline%20Merchant%20Maths
It answered our last check on 18 October 2026 in 401 ms. Over 10 checks since 5 September 2026 it answered 10. Status here comes from Neuronto's own probes, not from the publisher.
Yes. It is published by moltlinestudio.com and served from mcp.moltlinestudio.com, the vendor's own domain: https://mcp.moltlinestudio.com/merchant.
6, as returned by the server's own tools/list on 31 August 2026: charge_to_net, discount_stack, installment_plan, invoice_total, processor_fees, proration.
It answered our last check on 18 October 2026 in 401 ms. Over 10 checks since 5 September 2026 it answered 10.
Put the server under mcpServers in ~/.cursor/mcp.json with the URL https://mcp.moltlinestudio.com/merchant. The exact JSON is above, with the same setup for Claude Code, Claude Desktop, VS Code, Windsurf, Zed, Gemini CLI and the rest.
It listed its tools to an anonymous client, so reading the tool list needs no key. Individual tools can still ask for credentials in their own inputs.
Publisher: com.moltlinestudio. Endpoint host: mcp.moltlinestudio.com. ARD identifier: urn:air:com.moltlinestudio:mcp:merchant.
First indexed 31 August 2026. The tools are exactly what the server returned; nothing on this page
is inferred from its name. Ranking in Neuronto search is never for sale.