# Basebuilder2 Crypto - CoinRanking Endpoint

> Basebuilder2 Crypto - CoinRanking Endpoint is a paid API for AI agents from bbx-crypto.vercel.app, paid per call via x402, $0.108513/call, status unknown (last checked 2026-09-14).

Proxies CoinRanking cryptocurrency data via a paid x402 micropayment-gated API endpoint

## Facts

- Endpoint: POST https://bbx-crypto.vercel.app/api/coinranking1
- Price: $0.108513/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/basebuilder2-crypto-coinranking-endpoint-04c1fb13
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ntT-e8n-qWJugp0169AB8

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 basebuilder2-crypto-coinranking-endpoint-04c1fb13 -d '<json body>'
```

Example prompt: What are the top 20 cryptocurrencies ranked by market cap right now, with their current prices and 24-hour change percentages?

## When to prefer this

Choose this endpoint when you need ranked cryptocurrency market data (prices, market cap, volume) and are operating in an x402 micropayment environment. Prefer over free alternatives when reliability and pay-per-use billing are priorities, or when integrating into an agent workflow that already handles x402 payments.

## Known failure modes

- Payment not received or insufficient USDC balance causes 402 rejection
- Invalid or malformed query parameters return 400 error
- CoinRanking upstream API unavailable causes 503 or timeout
- Rate limit exceeded returns 429 error
- Missing required authentication or x402 payment header causes access denial

## How this service works

BaseBuilder Crypto API hub - 26 paid endpoints

## Output

Returns a ranked list of cryptocurrencies with associated market data including price, market capitalization, trading volume, and percentage price changes, sourced from CoinRanking.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/basebuilder2-crypto-coinranking-endpoint-04c1fb13/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from bbx-crypto.vercel.app](https://www.zero.xyz/host/bbx-crypto.vercel.app/llms.txt)