Invoice Simple MCP Server and API by Cotlet
cotlet-connect/invoice-simple-mcp
Invoice Simple small business invoicing MCP server: create invoice, send invoice, create estimate.
- tools
- 7
- auth
- Secret needed
- transport
- HTTP
- last updated
- Nov 10, 2026
Tools
7 toolsPublic tool metadata for what this MCP can expose to an agent.
invoice_simple_guideLocal stdio MCP server tool; lists the Invoice Simple screens and sign-in link.
Local stdio MCP server tool; lists the Invoice Simple screens and sign-in link.
No parameter schema in public metadata yet.
invoice_simple_statusLocal stdio MCP server tool; checks whether Invoice Simple is ready in the Cotlet.dev account.
Local stdio MCP server tool; checks whether Invoice Simple is ready in the Cotlet.dev account.
No parameter schema in public metadata yet.
invoice_simple_openLocal stdio MCP server tool; opens Invoice Simple in the Cotlet.dev cloud browser.
Local stdio MCP server tool; opens Invoice Simple in the Cotlet.dev cloud browser.
No parameter schema in public metadata yet.
invoice_simple_readLocal stdio MCP server tool; reads the current Invoice Simple page.
Local stdio MCP server tool; reads the current Invoice Simple page.
No parameter schema in public metadata yet.
invoice_simple_clickLocal stdio MCP server tool; clicks an element in Invoice Simple.
Local stdio MCP server tool; clicks an element in Invoice Simple.
No parameter schema in public metadata yet.
invoice_simple_typeLocal stdio MCP server tool; types text into Invoice Simple.
Local stdio MCP server tool; types text into Invoice Simple.
No parameter schema in public metadata yet.
invoice_simple_closeLocal stdio MCP server tool; closes the Invoice Simple browser session.
Local stdio MCP server tool; closes the Invoice Simple browser session.
No parameter schema in public metadata yet.
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How to connect Invoice Simple to Claude Code, ChatGPT and any AI agent
Yes, Claude, ChatGPT and other AI agents can work in your Invoice Simple account. Invoice Simple has no publicly documented official app in ChatGPT or connector in Claude. Cotlet.dev connects your own signed-in Invoice Simple account to any AI agent, so you describe the job in plain words and the AI writes the estimate or invoice for you.
What you can ask
Create an invoice for Mark Davis: 6 hours of drywall repair at $65 an hour plus $140 in materials, due in 14 days.
Write an estimate for Linda Chen for a full bathroom repaint, $1,200 labor and $310 paint, valid for 30 days.
Turn yesterday's estimate for the Patel kitchen job into an invoice and send it to them.
Which invoices are still unpaid after 30 days? List the client, amount and due date.
Duplicate last month's lawn care invoice for Green Street Apartments, change the date to today and send it.
Connect in 2 minutes
Get your API key at https://cotlet.dev/app and export it as COTLET_API_KEY.
Claude Code
Details
- Repository
- github.com/cotlet-connect/invoice-simple-mcp
- Website
- cotlet.dev/integrations/invoice-simple-api-mcp-server
- Category
- Finance & Commerce
- Transport
- HTTP
- Auth
- Required
- Registry
- MCP registry, active
