Invoice Simple MCP Server and API by Cotlet for Claude.ai
dev.cotlet/invoice-simple
Invoice Simple small business invoicing MCP server: create invoice, send invoice, create estimate.
client:Claude.ai
transport:streamable-http
Install Invoice Simple MCP Server and API by Cotlet in Claude.ai
Settings → Connectors → Add custom connector
https://cotlet.dev/mcp/v1/invoice-simple/connect
Claude on the web takes a remote URL and completes OAuth in the browser. For a packaged server use Claude Desktop or Claude Code instead. Claude.ai docs