# Phantom API — Unichain NFT Floor Price

> Phantom API — Unichain 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 floor price for an NFT collection on the Unichain network given a contract address

## Facts

- Endpoint: POST https://phantom-api-omega.vercel.app/api/unichain/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-unichain-nft-floor-price-f9416265
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_tdjutuo21HRFdj1nSem1Z

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-unichain-nft-floor-price-f9416265 -d '<json body>'
```

Example prompt: What's the current floor price for the NFT collection at contract address 0x1234...abcd on Unichain?

## When to prefer this

Choose this endpoint when you need real-time NFT floor price data specifically on the Unichain network. It is pay-per-call via x402, making it cost-effective for low-frequency lookups without subscription overhead. Prefer it over generic NFT APIs when Unichain coverage is required.

## Known failure modes

- Invalid or malformed contract address returns an error
- Contract address not found on Unichain returns null or 404
- No NFT listings available resulting in no floor price data
- Network or RPC issues causing timeout or 500 error
- Payment failure via x402 protocol blocking the call

## 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 Unichain network, typically including the price value and currency denomination, enabling agents to assess entry cost for a collection.

## 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-unichain-nft-floor-price-f9416265/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)