# QuoteSheet x402 Multi-URL Price Comparison

> QuoteSheet x402 Multi-URL Price Comparison is a paid API for AI agents from quotesheet.panmediatech.workers.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).

Probes up to 8 x402-enabled API endpoints in parallel, reads their payment requirements, and returns a ranked quote board showing cheapest and fastest valid sellers filtered by budget.

## Facts

- Endpoint: POST https://quotesheet.panmediatech.workers.dev/x402/quote
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/quotesheet-x402-multi-url-price-comparison-7429e5ed
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_mjcwr3DOLp_e3iJS8I5k6

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 quotesheet-x402-multi-url-price-comparison-7429e5ed -d '<json body>'
```

Example prompt: Before I pay any of these APIs, check their x402 prices in parallel — probe these 8 Bazaar endpoint URLs, rank them cheapest to most expensive, flag which ones fit a $0.05 USDC budget, and tell me which is the fastest valid seller.

## When to prefer this

Use this endpoint when an AI agent needs to select among multiple competing x402-priced API sellers before committing to a payment — especially when cost or speed ranking matters and the agent must not overpay or blindly pick the first URL. Prefer over calling each endpoint individually when probing 2–8 candidates simultaneously saves round-trips.

## Known failure modes

- URL unreachable or non-x402 endpoint returns no quote for that slot
- All probed URLs exceed specified budget — budget_fit_count returns 0
- More than 8 URLs submitted — excess URLs may be truncated or rejected
- Payment for the quotesheet itself ($0.01 USDC) fails — request not processed
- Malformed URL list in request body causes 400 error
- Temporarily unavailable Cloudflare Worker returns 5xx

## How this service works

Compare x402 prices before you pay. Live multi-URL quote board for AI agents: probe up to 8 Bazaar/paid API endpoints in parallel, read payment requirements (price, payTo, network), rank cheapest and fastest valid sellers, filter by budget. Agent procurement and shopping for micropayments on Base. Does not pay candidates or settle to sellers. $0.01 USDC per sheet.

## Output

Returns an array of quotes per probed URL (each with price, payTo address, and network), a ranking object with cheapest_valid URL, fastest_valid URL, valid_count, and budget_fit_count, a human-readable summary string, and a checked_at timestamp. May also include a cache hit/miss field.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/quotesheet-x402-multi-url-price-comparison-7429e5ed/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from quotesheet.panmediatech.workers.dev](https://www.zero.xyz/host/quotesheet.panmediatech.workers.dev/llms.txt)