Get help
Connection problems
| Problem | What to do |
|---|---|
| Browser sign-in does not open | Confirm your client supports remote HTTP MCP servers with browser OAuth. Remove InvoicePig, add the exact URL again, and reconnect. |
401 Unauthorized | Clear InvoicePig authentication in your client, then sign in and approve the connection again. Do not paste a token manually. |
| Premium layout is forbidden | Choose classic, corporate, formal, or minimal, or use an account with premium access. Reconnect if you recently upgraded. |
Invalid Origin header | Remove and reconnect InvoicePig using a supported client. If the same message returns, contact support with the client name and error text. |
| Tools are missing | Confirm the server URL is exactly https://invoicepig.com/mcp, enable the server, and restart the client. |
| Prompts or guides are missing | Some clients display only tools. You can still create invoices by asking normally. |
Invoice and download problems
| Problem | What to do |
|---|---|
| Invoice details are rejected | Check the invoice fields. Every line item needs an ID, description, details, quantity, and rate. |
| Rate limited | Wait briefly, then ask the client to retry. InvoicePig does not automatically retry generation. |
| PDF generation failed | Retry once with a supported layout and simpler valid data. If it still fails, keep the visible error message for support. |
| Some batch invoices failed | Ask the client to report the failed item numbers. Successful PDFs remain available. Correct only the failed entries and retry them. |
| Download link expired | Generate the invoice again to receive a new 15-minute link. |
| Link does not open | Copy the complete link without changing its query string. Try opening it before it expires. |
Common mistakes
- Using a URL other than
https://invoicepig.com/mcp. - Adding an API key, bearer token, command, or package to the client configuration.
- Expecting InvoicePig itself to open a URL or read an attachment. Give the source to an AI client that can read it.
- Sending more than 10 invoices in one batch. Split them into smaller groups.
- Asking the assistant to guess the issuer, customer, tax treatment, or payment details. Confirm these before generation.
Contact support
If the problem continues, contact InvoicePig support or email support@invoicepig.com. Include:
- Your AI client name and version
- The visible error message
- The action that caused the problem
- Whether reconnecting changed the result
Never share an access token, password, API key, invoice contents, or signed invoice download link.