# Phantom API — Polygon NFT Floor Price

> Phantom API — Polygon 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 2026-10-13).

Returns the current floor price for an NFT collection on the Polygon blockchain given a contract address

## Facts

- Endpoint: POST https://phantom-api-omega.vercel.app/api/polygon/nft/floor-price?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/phantom-api-polygon-nft-floor-price-feab8523
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_qy_hIAInJ9xY8-nPu9iYh

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-polygon-nft-floor-price-feab8523 -d '<json body>'
```

Example prompt: What's the current floor price for the NFT collection at Polygon contract address 0x2953399124F0cBB46d2CbACD8A89cF0599974963?

## When to prefer this

Use this endpoint when you need fast, pay-per-call floor price data for NFT collections specifically on the Polygon network. Prefer it over general NFT aggregators when you want lightweight, programmatic access without API key setup, or when building agents that need on-demand Polygon NFT pricing without a subscription.

## Known failure modes

- Invalid or malformed contract address returns an error
- Contract address not found on Polygon network returns empty or null result
- Network congestion or RPC issues may cause timeout or stale data
- Non-NFT contract addresses may return no floor price data
- Rate limiting or payment failure (x402) blocks the response

## 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 of an NFT collection on the Polygon network for the specified contract address, typically including the price value and currency denomination (e.g. MATIC or USDC).

## 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-polygon-nft-floor-price-feab8523/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)