Invx docs

Invx is invoicing for independent contractors and small studios who bill clients abroad. It is also an MCP server: your AI agent can create, find and repeat invoices for you.

Start in three steps#

1. Create an account. Afterwards, sign in with your password, an email link or a code.
2. Add your business details: company name, address, currency and payment instructions. They print on every invoice.
3. Add a client and issue your first invoice, or let your agent do it.

Connect your agent#

Invx speaks the Model Context Protocol. Point any MCP client at the server URL:

https://invx.app/api/mcp

• Connect an agent: Claude Code, Codex, Cursor, Claude Desktop and apps with custom connectors.
• Tool reference: the 13 tools your agent gets.
• API keys: scoped, expiring, revocable.
• Limits and safety: rate limits, errors and how your data is protected.

For agents and LLMs#

Every page here is also plain Markdown: add .md to the URL, for example /docs/mcp.md. The whole site is indexed at /llms.txt, and /llms-full.txt holds every page in one file.