Your provider account stays yours
Trenith sends requests only when you run them and does not include bundled provider credits.
AI Studio · Uses your API key
AI Grammar Checker
Correct grammar, spelling and clarity while preserving the writer’s meaning and preferred regional English.
Run Grammar Checker with your provider
Trenith supplies the interface and request workflow. You supply credentials for a provider you already use. Keys are session-only unless you explicitly encrypt them for this device.
01
Connect a language model
02
Paste the text and choose a regional style
03
Review the corrected text and explanations
HOW IT WORKS
Three clear steps
No hidden queue, upgrade screen or misleading result state.
- 01
Connect a language model
- 02
Paste the text and choose a regional style
- 03
Review the corrected text and explanations
No Trenith usage price
Device tools and the Trenith interface are free. External providers may separately charge the account associated with your own API key.
FAQ
Common questions
Is AI Grammar Checker free to use?
Yes. AI Grammar Checker is free from Trenith with no account, subscription or artificial usage limit. You connect your own provider API key, and that provider bills your account directly for any model usage.
Where does my API key go?
Keys stay in this browser's session storage and are sent only to the provider you selected over a fixed, allowlisted route. They never appear in URLs, logs or page source, and an optional passphrase-encrypted device vault is available.
How do I use AI Grammar Checker?
1. Connect a language model 2. Paste the text and choose a regional style 3. Review the corrected text and explanations No sign-up is required.
NEED THIS AT BUSINESS SCALE?
Build with Trenith ↗Turn a useful tool into your workflow.
Trenith builds SaaS backends, AI integrations, cloud infrastructure, CRM workflows and automation for teams that need more than a one-off browser task.