Understanding NFT Listings
This API interface allows you to retrieve active OKX Seaport protocol listings for specified NFTs. It's an essential tool for traders and collectors navigating the Web3 marketplace.
API Endpoint
GET https://web3.okx.com/api/v5/mktplace/nft/markets/listings
Request Parameters
| Parameter | Type | Required | Description |
|---|---|---|---|
| chain | String | Yes | Blockchain name (see supported networks) |
| collectionAddress | String | No | NFT contract address |
| tokenId | String | No | Unique NFT identifier |
| maker | String | No | Filter by wallet address of order creator |
| createAfter | String | No | Show orders created after this timestamp (in seconds) |
| createBefore | String | No | Show orders created before this timestamp (in seconds) |
| updateAfter | String | No | Show orders updated after this timestamp (in seconds) |
| updateBefore | String | No | Show orders updated before this timestamp (in seconds) |
| status | String | No | Filter by order status: active, inactive, cancelled, or sold |
| platform | String | No | Target listing platform (default: okx) |
| sort | String | No | Sorting method (create_time_desc, update_time_desc, price_desc, price_asc) |
| limit | String | No | Results per page (default: 50) |
| cursor | String | No | Pagination cursor |
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Response Parameters
Returns an array of OKX Order Model objects:
| Parameter | Type | Description |
|---|---|---|
| orderId | String | Unique order identifier |
| createTime | Long | Order creation timestamp |
| updateTime | Long | Last update timestamp |
| listingTime | Long | When the listing became active |
| expirationTime | Long | Order expiry timestamp |
| status | String | Current status: active, cancelled, sold, or inactive |
| orderHash | String | Cryptographic order hash |
| protocolData | String | Order parameters (JSON format) |
| protocolAddress | String | Smart contract address for the transaction |
| chain | String | Blockchain name |
| maker | String | Creator's wallet address |
| orderType | String | Offer (bid) or BuyNow (listing) |
| price | String | Unit price per NFT |
| currencyAddress | String | Token address for payment |
| collectionAddress | String | NFT contract address |
| tokenId | String | Unique NFT identifier |
| amount | String | Quantity of NFTs in order |
Practical Implementation
Best Practices for API Integration:
- Rate Limiting: Implement proper request throttling
- Error Handling: Account for network instability
- Data Caching: Store frequent queries locally when possible
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FAQ Section
Q: How frequently should I poll for listing updates?
A: For most applications, polling every 5-15 minutes balances freshness with API load.
Q: What's the difference between createTime and listingTime?
A: createTime marks when the order was submitted, while listingTime indicates when it became active on-chain.
Q: Can I filter by multiple statuses simultaneously?
A: Current API version requires separate queries for each status filter.
Q: How do I handle paginated results effectively?
A: Use the cursor parameter with consistent limit values for reliable pagination.
Q: What's the maximum historical data available?
A: Typically 90 days of order history, though this may vary by platform.
Q: How are prices denominated in the response?
A: All prices are in the smallest unit of the specified currency (wei for ETH).
Advanced Usage
For high-volume applications, consider these optimizations:
- Implement WebSocket connections for real-time updates
- Use batch processing for large data sets
- Leverage IPFS for off-chain order data storage