# Phantom API — Kaia NFT by Owner

> Phantom API — Kaia NFT by Owner 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).

Fetches all NFTs owned by a specific wallet address on the Kaia blockchain network

## Facts

- Endpoint: POST https://phantom-api-omega.vercel.app/api/kaia/nft/by-owner
- 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-kaia-nft-by-owner-5bb11de4
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_pGL448DQtEPq7O6DHuys2

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-kaia-nft-by-owner-5bb11de4 -d '<json body>'
```

Example prompt: Show me all the NFTs held by Kaia wallet address 0xAbC123... — grab up to 50 at a time and let me know if there are more pages.

## When to prefer this

Use this endpoint when you need to enumerate NFTs on the Kaia blockchain specifically for a given owner wallet. It is ideal for building NFT portfolio views, access-gating logic, or collection analytics on Kaia. Prefer this over generic NFT APIs when Kaia network support is required and pay-per-call pricing ($0.01 USDC) fits your cost model.

## Known failure modes

- Invalid or malformed wallet address returns an error or empty result
- Owner address not found on Kaia network returns empty NFT list
- Rate limiting or payment failure (x402) blocks the call
- Invalid pageKey causes pagination error
- Limit value out of acceptable range 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 a list of NFTs owned by the specified wallet address on the Kaia network, including token metadata, contract addresses, and token IDs, along with a pagination cursor (pageKey) for retrieving additional results if the total exceeds the requested limit.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "limit": {
   "type": "number"
  },
  "owner": {
   "type": "string"
  },
  "pageKey": {
   "type": "string"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/phantom-api-kaia-nft-by-owner-5bb11de4/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)