# Phantom API — Gnosis NFT Metadata

> Phantom API — Gnosis 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 2026-10-22).

Fetches on-chain NFT metadata for a given contract address and token ID on the Gnosis network

## Facts

- Endpoint: POST https://phantom-api-omega.vercel.app/api/gnosis/nft/metadata?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-22
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/phantom-api-gnosis-nft-metadata-308f2867
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_htfHxO4wM6XvFVaGWbaUL

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-gnosis-nft-metadata-308f2867 -d '<json body>'
```

Example prompt: What's the metadata for token ID 42 of the NFT contract 0xabc123... on the Gnosis chain — give me the name, image, and attributes?

## When to prefer this

Use this endpoint when you specifically need NFT metadata on the Gnosis (xDai) network and want a pay-per-call model without a subscription. Prefer this over generic blockchain explorers when you need structured metadata (name, image, attributes) in a single call rather than raw contract ABI calls. Best suited for agents that need to enrich NFT data on Gnosis without managing their own RPC infrastructure.

## Known failure modes

- Invalid or non-existent contract address returns an error or empty response
- Token ID not minted or out of range returns a not-found error
- Gnosis RPC node unavailability causes timeout or 503
- Malformed contractAddress or tokenId input causes validation error
- NFT metadata stored off-chain (IPFS/Arweave) may fail to resolve if the gateway is down

## 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 on-chain NFT metadata for the specified token on the Gnosis network, typically including the token name, description, image URL, external URL, and an array of trait/attribute key-value pairs as stored in or referenced by the smart contract.

## 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-gnosis-nft-metadata-308f2867/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)