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whatchuneed Compare Endpoint
x402
whatchuneed Compare Endpoint is a paid API for AI agents from whatchuneed.vercel.app, paid per call via x402, $0.15/call, status unknown (last checked 2026-09-15).
Compares options or items across categories (accommodation, finance, crypto, etc.) based on a free-text input request, returning structured comparison results.
Price / call$0.15
Success—
StatusUnknown
How this service works
320+ pay-per-call API endpoints across accommodation, LLM, code execution, crypto, medical, finance, and more. One API, one payment. Powered by x402 protocol.
Output
A structured result object containing the comparison outcome, including ranked options, key differentiators, scores or metrics relevant to the comparison criteria, and a status string indicating success or failure.
Example use cases
Crypto exchange fee comparison
“Compare Coinbase and Binance for buying $500 worth of Ethereum — which one has lower fees and better rates right now?”
LLM provider cost comparison
“I need to compare GPT-4o and Claude Sonnet for my coding assistant use case — which one is cheaper per token and which performs better on code tasks?”
Accommodation value comparison
“Compare staying at a 3-star hotel versus a short-term Airbnb rental for a week in Lisbon — which gives me more value for around $800?”
Technical details
Endpoint
POSThttps://whatchuneed.vercel.app/api/alpha/compareWhen to prefer
Use this endpoint when you need a structured side-by-side comparison of two or more items across domains like crypto, accommodation, LLM providers, or financial products, and want a single unified API call rather than querying multiple domain-specific APIs. Particularly useful when the comparison is cross-domain or when you want a pay-per-call model without subscription commitments.
Side effects
- Vague or ambiguous input string may yield unhelpful comparison results
- Input not specifying what to compare may return generic or empty result
- Unsupported comparison domain may return null result object
- Payment failure via x402 protocol results in 402 response before processing
- Rate limiting or server errors on Vercel hosting may cause 5xx responses
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | string | Request input |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| result | object | Response data |
| status | string |
Tags
x402
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