Reports

Try to use a service account and authenticate with a Bearer token on your backend to call the ReCAPTCHA Enterprise API:

In this documentation, scroll down to the section: “REST API: Use the gcloud CLI”

POST https://recaptchaenterprise.googleapis.com/v1/projects/{PROJECT_ID}/assessments
Authorization: Bearer {ACCESS_TOKEN}
Content-Type: application/json

Then, ensure the URL is not URL encoded in code:

Tip: Try replacing %7B and &7D with your actual project-id and %7BAPI_KEY%7D with your raw API key. Do not enclosed them to {} or use it

From:

https://recaptchaenterprise.googleapis.com/v1/projects/%7BPROJECT_ID%7D/assessments?key=%7BAPI_KEY%7D

To:

https://recaptchaenterprise.googleapis.com/v1/projects/PROJECT_ID/assessments?key=API_KEY

If you’ve recently upgraded to Enterprise but haven’t updated your verification backend, that’s likely the source of your issue.

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