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KiteEndpoints.ai - Username Check API
x402
KiteEndpoints.ai - Username Check API is a paid API for AI agents from kite-hub-v2.vercel.app, paid per call via x402, $0.06/call, status unknown (last checked 2026-09-15).
Checks whether a username is available or already taken across social media or other platforms
Price / call$0.06
Success—
StatusUnknown
How this service works
400+ paid API endpoints. Social media, AI, crypto, finance, weather, ecommerce, tools. Pay per request with USDC on Base chain.
Output
Returns an object containing availability status and related data about the queried username, indicating whether it is taken or free on the target platform.
Example use cases
Brand name registration across platforms
“I want to register 'TechNova' as my company brand. Can you quickly check if that username or handle is available on Twitter, Instagram, and TikTok so I know what platforms I can claim it on?”
Social media handle selection during signup
“I'm creating a new YouTube channel and I really like the handle 'CreativeFlow'. Before I commit to signing up, can you verify whether that handle is already taken on YouTube?”
Marketplace seller username validation
“I'm setting up a seller account on Etsy and want to use 'ArtisanCraft2024' as my shop name. Can you check if that username is free or if someone's already using it?”
Technical details
Endpoint
POSThttps://kite-hub-v2.vercel.app/api/username-checkWhen to prefer
Use this endpoint when you need a quick, pay-per-request username availability check without committing to a subscription service. Ideal for agents handling account creation flows, brand registration, or social media handle selection where on-demand lookup is preferred over bulk checking.
Side effects
- Username not provided — returns validation error
- Platform not reachable — returns upstream error
- Invalid username format — returns 400-level error
- Payment not completed — returns 402 Payment Required
- Rate limit exceeded — returns 429 error
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| result | object | API response data |
Tags
x402
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