# Phantom API — opBNB NFT Floor Price

> Phantom API — opBNB NFT Floor Price is a paid API for AI agents from phantom-api-omega.vercel.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).

Returns the current NFT floor price for a given contract address on the opBNB blockchain network

## Facts

- Endpoint: POST https://phantom-api-omega.vercel.app/api/opbnb/nft/floor-price
- 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/phantom-api-opbnb-nft-floor-price-afd2b462
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_h0TX6HAlfecfC-fAtL4jT

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 phantom-api-opbnb-nft-floor-price-afd2b462 -d '<json body>'
```

Example prompt: What's the current NFT floor price for the contract 0xAbC123... on opBNB? I want to know the cheapest entry point into that collection right now.

## When to prefer this

Use this endpoint when you specifically need NFT floor price data on the opBNB network (BNB Chain's Layer 2). It is pay-per-call at $0.01 USDC via x402, making it cost-effective for spot queries. Prefer this over general NFT APIs when opBNB-specific data is required, and over full node RPC calls when you want a simple abstracted floor-price lookup without parsing raw marketplace events.

## Known failure modes

- Invalid or non-existent contract address returns an error or empty result
- Contract address exists but has no active NFT listings, resulting in null floor price
- opBNB network congestion or RPC issues may cause timeouts
- Malformed contract address (wrong length or format) returns validation error
- Rate limiting or payment failure via x402 protocol returns 402 status

## How this service works

Lightning-fast access to blockchain data, smart contract insights, and Web3 infrastructure across 57+ networks. Pay-per-call via x402.

## Output

Returns the current floor price for the specified NFT collection on the opBNB network, typically including the minimum listing price in native token (BNB or equivalent) and possibly USD value, derived from on-chain or marketplace data.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "contractAddress": {
   "type": "string"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/phantom-api-opbnb-nft-floor-price-afd2b462/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from phantom-api-omega.vercel.app](https://www.zero.xyz/host/phantom-api-omega.vercel.app/llms.txt)