# Phantom API — SEI NFT Sales

> Phantom API — SEI NFT Sales 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 sales transaction history on the SEI blockchain, filterable by block range and contract address.

## Facts

- Endpoint: POST https://phantom-api-omega.vercel.app/api/sei/nft/sales
- 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-sei-nft-sales-b6f73081
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_jcINAWIL9F1RfCqHYtvlp

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-sei-nft-sales-b6f73081 -d '<json body>'
```

Example prompt: Pull the last 50 NFT sales on the SEI blockchain for contract address 0xAbC123..., ordered from newest to oldest, covering blocks 1000000 to 1100000.

## When to prefer this

Use this endpoint when you need historical or recent NFT sales data specifically on the SEI blockchain and want fine-grained control over block range, sort order, and result count. Prefer this over generic blockchain explorers when you need structured, machine-readable sale event data for a specific contract, or when building analytics pipelines around SEI NFT activity. The pay-per-call x402 model makes it cost-effective for low-frequency queries without subscription overhead.

## Known failure modes

- Invalid contract address format returns validation error
- fromBlock greater than toBlock returns empty result or error
- Block range too large may result in timeout or truncated response
- Invalid order enum value (not 'asc' or 'desc') returns schema validation error
- Blocks not yet indexed return empty result set
- Payment failure via x402 protocol blocks the request entirely

## 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 NFT sale events from the SEI blockchain, each containing transaction details such as block number, contract address, token IDs, sale amounts, buyer/seller addresses, and timestamps, filtered by the specified block range and contract address, paginated up to the requested limit.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "limit": {
   "type": "number"
  },
  "order": {
   "enum": [
    "asc",
    "desc"
   ],
   "type": "string"
  },
  "toBlock": {
   "type": "number"
  },
  "fromBlock": {
   "type": "number"
  },
  "contractAddress": {
   "type": "string"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/phantom-api-sei-nft-sales-b6f73081/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)