ERC20 token balance for a wallet on Base mainnet
ERC20 token balance for a wallet on Base mainnet - balanceOf() and decimals() batched into one Multicall3 round trip.
Answeringour last check, 2026-10-04
1 of 1checks answered this week
915 msmedian answer time
$0.003listed price per call
$0.003price 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
POST https://x402.agentindex.world/base/erc20-balance
| Category | Market data |
|---|---|
| Provider host | x402.agentindex.world |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 1 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-04 | valid payment request | 402 | $0.003 | 915 ms |
Example input (from the provider)
{
"body": {
"token": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"wallet": "0xb3F32bdfe8D07825BC0D7387295aB1D7559BA69d"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"properties": {
"token": {
"title": "Token",
"type": "string"
},
"wallet": {
"title": "Wallet",
"type": "string"
}
},
"required": [
"token",
"wallet"
],
"title": "TokenWalletInput",
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"balance": {
"title": "Balance",
"type": "number"
},
"balance_raw": {
"title": "Balance Raw",
"type": "string"
},
"decimals": {
"title": "Decimals",
"type": "integer"
},
"token": {
"title": "Token",
"type": "string"
},
"wallet": {
"title": "Wallet",
"type": "string"
}
},
"required": [
"token",
"wallet",
"decimals",
"balance_raw",
"balance"
],
"title": "Erc20BalanceOutput",
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}