This API is being replaced. New integrations should use the new API.
Existing integrations keep working while you move over.
Base URL
/v1. Requests and answers are JSON, except invoice uploads, which send
files as multipart/form-data.
What you can do
How it works
1
Create an API key
Create a key with Write access under Settings → Personal → API keys.
2
Upload an invoice
Send the invoice file. You get back the new invoice’s ID.
3
Check the result
Fetch the invoice until Watchdog has finished processing and checking it.
Authentication
Create an API key and send it with your requests.
Upload and poll
Upload an invoice and follow it until it has been checked.