Integrates with Google Cloud Translation API using OAuth 2.0 authentication. Configure OAuth credentials and Google Cloud settings to enable Google Translate integration.

Custom Google Translate Engine

Integrates with Google Cloud Translation API using OAuth 2.0 authentication. This engine provides access to Google’s extensive language coverage through your own Google Cloud project.

Required GCP Permissions

Permission	Required For
`roles/cloudtranslate.user`	Basic translation (v2 & v3 API)
`roles/cloudtranslate.admin`	Creating & managing glossaries
`roles/storage.objectViewer`	Reading glossary files from Cloud Storage

Required OAuth Scopes

Scope	Required For
`https://www.googleapis.com/auth/cloud-translation`	Basic translation only
`https://www.googleapis.com/auth/cloud-platform`	Glossary translation (v3 API requires this)

💡 Use https://www.googleapis.com/auth/cloud-platform if you plan to use glossaries — it covers both.

Step 1 — Enable APIs

Go to https://console.cloud.google.com/apis/library
Search for and enable:
- Cloud Translation API (translate.googleapis.com)
- Cloud Storage API (storage.googleapis.com) — only required if glossary files are stored in GCS

Step 2 — Assign IAM Roles to Your Account

Go to https://console.cloud.google.com/iam-admin/iam
Find your Google account (the one you will sign in with during authentication)
Click the pencil (edit) icon → Add another role
Add the following roles:
- Cloud Translation API User — required for basic translation
- Cloud Translation API Admin — required if you need to create or manage glossaries
Click Save

Step 3 — Configure OAuth Consent Screen

Go to https://console.cloud.google.com/apis/credentials/consent