102 MCP tools • Most complete invoicing MCP server

Invoicing your AI agent can actually use.

Connect InvoiceCave to Claude Desktop, Claude Code, Cursor, or any MCP-compatible client in 30 seconds. 102 first-party tools — invoices, quotes, expenses, recurring billing, full double-entry accounting, and reports.

Free plan available. No credit card. Sign up to grab your API key.

AI-native, by design

FreshBooks, Wave, and Bill.com don't have official MCP servers. We do — and we shipped 102 tools.

102 first-party tools

Every dashboard action is a single AI prompt. Create invoices, send reminders, run P&L, post journal entries — natively.

30-second setup

Drop the JSON snippet into Claude Desktop, run one CLI command in Claude Code, or paste the URL into Cursor. Done.

Tenant-scoped & rate-limited

Bearer-token auth per organization. Every MCP call appears in your audit log. Revocable in one click.

Modern protocol

Latest MCP streamable HTTP transport. Negotiates protocol versions back to 2024-11-05. Works with every spec-compliant client.

Plain-English workflows

“Set up a $2,500/mo retainer for Acme Corp starting Jan 1” — and it does. No glue code, no Zapier.

Open & inspectable

Public manifest at /api/mcp/manifest. Tool schemas are self-describing. No vendor lock-in.

Three lines to wire it up

Pick your AI client.

// Claude Code (terminal)
claude mcp add invoicecave --transport http \
  https://www.invoicecave.com/api/mcp/mcp \
  --header "Authorization: Bearer ic_your_api_key"
// Claude Desktop / Cursor — paste into MCP config
{
  "mcpServers": {
    "invoicecave": {
      "url": "https://www.invoicecave.com/api/mcp/mcp",
      "headers": {
        "Authorization": "Bearer ic_your_api_key"
      }
    }
  }
}

Every tool, one click away

All 102 tools indexed below. Click any to see schema + example AI prompts.

Integrations (1)

Real prompts. Real workflows.

Type these into Claude Desktop or Cursor — they actually work.

Create a $5,000 invoice for Acme Corp using the modern template, due Net 30, and email it now.

Set up a $2,500/month retainer for Globex starting January 1 — payable via Wise EUR.

What's my profit and loss for Q4? Break it down by currency.

Show me everyone with overdue invoices > 30 days, then send all of them a reminder.

Convert the latest quote for Initech into a Draft invoice and add it to my outstanding pipeline.

Apply the configured late fee to every invoice past due by 45 days.

Stop clicking. Start prompting.

Free plan covers 3 customers and 5 invoices/month. No credit card.