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Synapse API — ZKSync NFT by Owner
x402
Synapse API — ZKSync NFT by Owner is a paid API for AI agents from synapse-api-brown.vercel.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).
Retrieves all NFTs owned by a given wallet address on the ZKSync blockchain network
Price / call$0.01
Success—
StatusUnknown
How this service works
High-speed API suite for AI processing, web scraping, and smart data utilities across 57+ blockchain networks. Pay-per-call via x402.
Output
Returns a paginated list of NFTs owned by the specified wallet address on ZKSync, including token IDs, contract addresses, NFT metadata, and a pageKey for fetching additional results if the total exceeds the requested limit.
Example use cases
NFT Portfolio Viewer for ZKSync
“Show me all the NFTs held by this ZKSync wallet address 0xAbCd1234...5678 — I want to see the full list, up to 100 items.”
NFT Gallery Curation for dApp
“I'm building a gallery page — pull all NFTs owned by 0xDeadBeef...9999 on ZKSync so I can display their collection in my app, give me the first 20.”
ZKSync NFT Audit for Due Diligence
“Can you retrieve all the NFTs currently owned by ZKSync address 0xAaBbCc...1122? I need the complete list to verify their holdings before a transfer.”
Technical details
Endpoint
POSThttps://synapse-api-brown.vercel.app/api/zksync/nft/by-ownerWhen to prefer
Use this endpoint when you need to look up the NFT holdings of a specific wallet address specifically on the ZKSync Layer 2 network. Prefer this over generic Ethereum NFT APIs when the target address is a ZKSync user, or when you need ZKSync-native NFT data. It supports pagination via pageKey, making it suitable for wallets with large NFT collections.
Side effects
- Invalid or malformed owner address returns an error or empty result
- Non-existent or zero-activity wallet returns an empty NFT list
- Invalid pageKey causes pagination failure or duplicate results
- Exceeding rate limits may result in 429 or payment-related errors
- Network unavailability of ZKSync data provider returns 5xx errors
- Missing required owner field returns a validation error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| limit | number | |
| owner | string | |
| pageKey | string |
Tags
x402
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