NFT balance, zkSync
NFT balance, zkSync. 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.
Answeringour last check, 2026-10-26
1 of 1checks answered this week
16 msmedian answer time
$0.01listed price per call
$0.01price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
GET https://agent-data-tools.revmesh2074.workers.dev/zksync/nft-balance
| Category | Market data |
|---|---|
| Provider host | agent-data-tools.revmesh2074.workers.dev |
| Networks | eip155:137, eip155:42161, eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| Payment schemes | exact |
| Self-reported calls, 30 days | 0 from 0 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-26 | valid payment request | 402 | $0.01 | 16 ms |
Example input (from the provider)
{
"method": "GET",
"queryParams": {
"address": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
"contract": "0x0616e5762c1E7Dc3723c50663dF10a162D690a86"
},
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"address": {
"description": "0x wallet address",
"examples": [
"0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045"
],
"pattern": "^0x[0-9a-fA-F]{40}$",
"type": "string"
},
"contract": {
"description": "0x ERC-721 collection contract address",
"examples": [
"0x0616e5762c1E7Dc3723c50663dF10a162D690a86"
],
"pattern": "^0x[0-9a-fA-F]{40}$",
"type": "string"
}
},
"required": [
"contract",
"address"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"address": {
"type": "string"
},
"balance": {
"type": "string"
},
"chain": {
"type": "string"
},
"chainId": {
"type": "number"
},
"contract": {
"type": "string"
},
"name": {
"type": "string"
},
"symbol": {
"type": "string"
}
},
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}