# Phantom API — Unichain NFT Metadata

> Phantom API — Unichain NFT Metadata 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).

Retrieves NFT metadata for a given token ID and contract address on the Unichain network

## Facts

- Endpoint: POST https://phantom-api-omega.vercel.app/api/unichain/nft/metadata
- 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-metadata-1b43c198
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_FJUCQNNRVNsOy4GQ1bJCy

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-metadata-1b43c198 -d '<json body>'
```

Example prompt: Can you pull the metadata for token ID 42 from the NFT contract at 0xAbC123... on Unichain — I want to see its name, image, and traits?

## When to prefer this

Choose this endpoint when you specifically need NFT metadata (name, image, attributes) for a token on the Unichain network and want a pay-per-call model without API key subscription overhead. Prefer this over general-purpose NFT APIs when targeting Unichain specifically, or over direct RPC calls when you want parsed, structured metadata rather than raw contract data.

## Known failure modes

- Invalid or non-existent contract address returns an error or empty response
- Token ID not found on the contract returns null or 404-style error
- Unichain RPC node unavailability causes timeouts
- Malformed contract address (wrong checksum or length) causes validation error
- Metadata hosted on IPFS or arweave may fail to resolve if the gateway is down
- Payment failure via x402 if insufficient USDC balance

## 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 NFT metadata for the specified token on Unichain, typically including the token name, description, image URL, external URL, and any on-chain or off-chain attributes/traits associated with that token ID.

## Request schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/phantom-api-unichain-nft-metadata-1b43c198/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)