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Tempest AI Proofreader
x402
Tempest AI Proofreader is a paid API for AI agents from trempest.vercel.app, paid per call via x402, $0.15/call, status unknown (last checked 2026-09-14).
Proofreads submitted text using AI, identifying and correcting grammar, spelling, punctuation, and style errors.
Price / call$0.15
Success—
StatusUnknown
How this service works
Compose, rewrite, translate, and refine content at scale. 25 AI-powered endpoints. Pay-per-call with USDC on Tempo.
Output
Returns a JSON object with a success flag and a data object containing the proofread result — typically the corrected version of the input text along with identified errors or suggested fixes.
Example use cases
Pre-send email grammar check
“Before I send this client email, can you proofread it and fix any errors? 'Dear Mr. Smith, I wanted to folllow up on are meeting from last weak and discuss the propsal you mentioned.'”
Blog post polish before publishing
“My blog post intro needs proofreading — catch any typos or grammatical issues: 'Starting a buisness is one of the most challanging things a person can do, but with the write mindset its also one of the most rewarding.'”
Academic essay correction
“Can you proofread this thesis sentence and fix anything wrong with it? 'The study demostrate that regular excercise have a significant affect on mental health outcomes amoung adolescents.'”
Technical details
Endpoint
POSThttps://trempest.vercel.app/api/proofreadWhen to prefer
Use this endpoint when you need a fast, pay-per-call AI proofreading step without a subscription — ideal for agents that need to polish user-generated text, validate copy before publishing, or clean up drafts on demand. Prefer this over generic LLM prompting when you want a dedicated, consistently priced proofreading call billed in USDC via x402.
Side effects
- Empty or missing 'text' field returns a 400 validation error
- Extremely long texts may time out or be truncated
- Ambiguous or domain-specific jargon may be incorrectly flagged as errors
- Non-English text may not be proofread accurately
- Payment failure (insufficient USDC) results in a 402 response blocking the call
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| textrequired | string | Text to proofread |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| data | object | |
| success | boolean |
Tags
x402
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