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Synapse AI Text Rewriter
x402
Synapse AI Text Rewriter is a paid API for AI agents from anibalb.duckdns.org, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-31).
Rewrites or paraphrases input text with a specified tone (e.g. formal) using AI, paid per call in USDC via x402 on Base
Price / call$0.005
Success—
StatusUnknown
How this service works
Public data and utility APIs paid per call in USDC on Base (x402). No accounts, no API keys. 174 routes: crypto/equity data, onchain reads, DNS/email/security intel, geo/weather, x402 payment diagnostics, dev utilities and more.
Output
A JSON object containing the original input text, the rewritten version with the requested tone applied, and a label confirming the tone used (e.g. {tone: 'formal', original: '...', rewritten: '...'})
Example use cases
Formal email tone polish
“Rewrite this casual email draft in a formal tone so it's appropriate to send to a client: 'Hi! We wanted to reach out and see if you'd be down to meet sometime next week to go over the project stuff.'”
Professional bio rewrite
“Take this informal bio I wrote and rewrite it to sound formal and professional: 'I'm a developer who loves building cool stuff and figuring out hard problems with my team.'”
Customer message tone correction
“I need this support reply rewritten with a formal tone before I send it: 'Thanks so much for reaching out! We'll look into it ASAP and get back to you soon.'”
Technical details
Endpoint
GEThttps://anibalb.duckdns.org/x402/ai-rewrite?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a quick, pay-per-use text rewriting or tone-shifting capability with no account setup or API key — ideal for agents that need on-demand paraphrasing in a formal style via x402 micropayments on Base.
Side effects
- Missing or malformed 'input' parameter returns a 400 error
- Payment failure or insufficient USDC balance causes a 402 response before processing
- Text too long or unsupported content may result in a processing error
- Network issues with the duckdns.org host may cause timeouts or 503 errors
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"tone": "formal",
"original": "...",
"rewritten": "..."
}
}Tags
x402
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