# whatchuneed Compare Endpoint

> 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.

## Facts

- Endpoint: POST https://whatchuneed.vercel.app/api/alpha/compare
- Price: $0.15/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/whatchuneed-compare-endpoint-bf513c19
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_b9POACMI3lRpeA5fy7znq

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability whatchuneed-compare-endpoint-bf513c19 -d '<json body>'
```

Example prompt: Can you compare Airbnb vs a hotel stay in terms of cost and flexibility for a 3-night trip — give me a side-by-side breakdown so I can decide which is better value?

## When to prefer this

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.

## Known failure modes

- 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

## 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.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "string",
   "description": "Request input"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "result": {
   "type": "object",
   "description": "Response data"
  },
  "status": {
   "type": "string"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/whatchuneed-compare-endpoint-bf513c19/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from whatchuneed.vercel.app](https://www.zero.xyz/host/whatchuneed.vercel.app/llms.txt)