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Tempest AI Proofreader
x402
Tempest AI Proofreader is a paid API for AI agents from tempest-2zzx.vercel.app, paid per call via x402, $0.15/call, status unknown (last checked 2026-09-14).
Proofreads submitted text using AI, returning corrected and refined content with grammar, spelling, and style improvements.
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` boolean and a `data` object containing the proofread version of the submitted text, with grammar, spelling, punctuation, and style corrections applied by AI.
Example use cases
Polish a professional email draft
“Proofread this email before I send it to my client: 'Dear John, I wanted to follow-up on our meeting last weak. Please find attached the proposal we discussed, let me know you're thoughts when you get a chance. Best regards, Sarah.'”
Fix grammar in a blog post
“Can you proofread this blog intro and correct any mistakes? 'There are many reason why small businesses fail in there first year. Most of this reason are related to cashflow problems and lack of costumer awarness.'”
Clean up academic writing
“Proofread this section of my research paper and fix any grammatical or spelling errors: 'The study were conducted over a period of six months and involvd 200 participents who was selected randomly from the general popualtion.'”
Technical details
Endpoint
POSThttps://tempest-2zzx.vercel.app/api/proofreadWhen to prefer
Choose this endpoint when you need AI-powered proofreading that corrects grammar, spelling, punctuation, and style in a single API call with pay-per-use USDC pricing via x402. Prefer it over standalone grammar tools when integrating into an automated content pipeline that already uses Tempest's ecosystem of 25 AI content endpoints, or when you need lightweight per-call billing without a subscription.
Side effects
- Empty or missing `text` field returns a 400 validation error
- Extremely long text may exceed token limits and return an error or truncated result
- Payment failure (insufficient USDC) results in 402 Payment Required before processing
- Ambiguous text with domain-specific jargon may be over-corrected by the AI
- Non-English text submitted without context may be incorrectly processed
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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