https://agent-data-tools.revmesh2074.workers.dev/zksync/nft-balance
https://agent-data-tools.revmesh2074.workers.dev/zksync/nft-balanceOverview
How many NFTs of one ERC-721 collection a wallet holds on zkSync Era (balanceOf), with the collection's name and symbol. Use to check a holder before a token-gated action or to see whether a wallet still holds a collection; for who holds one token id use zksync_nft_owner. Both inputs are 0x addresses; a missing contract is 404, a contract that is not ERC-721 422, both uncharged.
Protocol
x402
Price
$0.0030
Payment Asset
USD Coin
Payment Network
Base
Category
uncategorized
Provider
agent-data-tools
Source
bazaar
Indexed
2026-10-26 14:43:58
Health
Status
degraded
Latency (p50)
271ms
Uptime (30d)
100.0%
Reliability Score
90/100
Last Checked
2026-10-27 21:19:46
Last Healthy
2026-10-27 21:00:28
Consecutive Failures
0
x402 Payment Validation
Payment Requirements
Valid
Asset Verified
Known USDC
Facilitator
—
Input Schema
{
"method": "GET",
"queryParams": {
"address": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
"contract": "0x0616e5762c1E7Dc3723c50663dF10a162D690a86"
},
"type": "http"
}
Output Schema
{
"example": {
"address": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
"balance": "2",
"chain": "zkSync Era",
"chainId": 324,
"contract": "0x0616e5762c1E7Dc3723c50663dF10a162D690a86",
"name": "Uniswap V3 Positions NFT-V1",
"symbol": "UNI-V3-POS"
},
"type": "json"
}
Recent Health Checks
| Time | Status | HTTP | Latency | Error |
|---|---|---|---|---|
| 2026-10-27 21:19:46 | degraded | 402 | 271ms | |
| 2026-10-27 21:00:28 | healthy | 402 | 272ms | |
| 2026-10-27 20:01:11 | healthy | 402 | 271ms | |
| 2026-10-27 18:57:57 | healthy | 402 | 57ms | |
| 2026-10-27 18:44:24 | healthy | 402 | 114ms | |
| 2026-10-27 18:32:44 | healthy | 402 | 134ms |