# Phantom API — Soneium NFT Floor Price

> Phantom API — Soneium 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 Soneium blockchain given a contract address.

## Facts

- Endpoint: POST https://phantom-api-omega.vercel.app/api/soneium/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-soneium-nft-floor-price-adb60200
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_5xYUxDdT55-t-WSt-W3KH

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-soneium-nft-floor-price-adb60200 -d '<json body>'
```

Example prompt: What's the current floor price for the NFT collection at contract address 0xAbC123... on Soneium?

## When to prefer this

Choose this endpoint when you need real-time or near-real-time NFT floor price data specifically on the Soneium network. Prefer it over generic NFT APIs when Soneium coverage is required and pay-per-call pricing (rather than subscription) is acceptable.

## Known failure modes

- Invalid or malformed contract address returns an error
- Contract address not found on Soneium network returns empty or 404
- Collection has no active listings so floor price is null or zero
- Network congestion may cause stale or delayed data
- Missing contractAddress field in request body causes validation error

## 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 Soneium network, likely including the price value and currency denomination, sourced 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-soneium-nft-floor-price-adb60200/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)