AI agent for InvoiceXpress
Connect InvoiceXpress to your AI agent through the WorkAist MCP server.
Marketplace
Pre-built connector templates · install with one click.
- 1Install in one click
Pick InvoiceXpress from the marketplace. WorkAist handles API key and stores the credentials encrypted — no JSON keys to paste.
- 2Tools auto-generated
InvoiceXpress exposes 6 MCP tools to every agent in your workspace: list_invoices, create_invoice, send_invoice, mark_paid, and more. Each tool is a typed function, not a brittle script.
- 3Data flows to your graph
Historical invoicing records sync to your private knowledge graph. Agents query relationships across all connected sources, not just InvoiceXpress in isolation.
- 4Your agents take action
Your AI agent picks the right tool, runs it under your access policies, and answers in plain language — with a full audit trail of every InvoiceXpress call.
InvoiceXpress is invoicing software built for businesses in Portugal you can connect to WorkAist in minutes. Through the open MCP standard, your AI agents categorise transactions, reconcile accounts and prepare reports — autonomously, under explicit permissions, with no manual hand-offs. InvoiceXpress authenticates via a secure API key, and because WorkAist is self-hosted under AGPL-3.0, your data never leaves your own infrastructure.
Authentication & setup
The InvoiceXpress connector authenticates via API key.
Generate an API key in the service dashboard and paste it at install time. WorkAist encrypts it at rest.
Frequently paired with InvoiceXpress
FAQ
Can a WorkAist AI agent really automate InvoiceXpress end-to-end?▼
Yes. The connector exposes read and write tools through Model Context Protocol. AI agents call them through plain-language instructions in a CLAUDE.md file — no glue code.
How does this differ from using the InvoiceXpress API directly?▼
The connector adds permission isolation, audit logging, cost tracking per agent, and reversible PII redaction at the LLM boundary. It also presents InvoiceXpress as part of a unified Knowledge Graph alongside your other tools.
What does it cost?▼
WorkAist is open-source under AGPL-3.0 and self-hosted, so the connector itself is free. You pay only for InvoiceXpress's own API costs (if any) and the LLM tokens your agent consumes.
Is my InvoiceXpress data sent to a third party?▼
No. WorkAist runs in your own infrastructure. Data flows from InvoiceXpress → your WorkAist instance → the LLM you choose. Sensitive fields can be tokenized before reaching the LLM.
What if InvoiceXpress changes its API?▼
The connector is versioned and published openly. When InvoiceXpress ships breaking changes, we bump the connector version and the marketplace UI surfaces the upgrade as a one-click apply.