Describe the issue/error/question
Cannot connect to Invoice Ninja V5. Credentials are valid and tested with other tools.
Version 4 is still active, whereas the integration does not seem to work with the current v5. Is there an update to v5 planned?
What is the error message (if any)?
ERROR: Forbidden - perhaps check your credentials?
Invalid Token
“message”: “Request failed with status code 403”,
“name”: “Error”,
Information on your n8n setup
- n8n version: Windows 1.0
- Running n8n via [Docker, npm, n8n.cloud, desktop app]: Desktop App
Hi @SteffenN, welcome to the community 
I don’t think this is planned yet, but from looking at their new docs it should certainly be possible. It seems the main difference would be the X-Ninja-Token header being renamed to X-Api-Token in v5 and two additional headers (X-Api-Secret, X-Requested-With) are now required to authenticate requests. This is from taking a first look at their v5 Swagger page for a random request.
Unfortunately, they won’t let me test this with my trial account:
In addition, simply changing the respective function in n8n would break v4 API requests, meaning it’s not a trivial change and would require additional consideration.
So for the time being you would need to call their API v5 manually through the HTTP Request node I am afraid.
I shall however convert your question into a feature request, so you and other Invoice Ninja users can vote on this and help the team prioritize development efforts.
Hi @MutedJam ,
thanks for the quick feedback.
In case you need an api token, we have an enterprise plan and a test tenant.
Cheers,
Steffen
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