Read the ETH and USDC balance of any address on Base mainnet (chain 8453) straig
Read the ETH and USDC balance of any address on Base mainnet (chain 8453) straight from the chain, plus transaction count and how many x402 calls the USDC covers. Use it to check your own agent wallet before a paid workflow, to verify a counterparty was paid, or to monitor treasury addresses. Params: address (required, 0x...).
Answeringour last check, 2026-10-10
1 of 1checks answered this week
890 msmedian answer time
$0.002listed price per call
$0.002price 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://agentsvc.io/api/v1/proxy/evm-balance
| Category | Market data |
|---|---|
| Provider host | agentsvc.io |
| Networks | eip155:137, eip155:42161, eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| Payment schemes | exact |
| Self-reported calls, 30 days | 10 from 3 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-10 | valid payment request | 402 | $0.002 | 890 ms |
Example input (from the provider)
{
"body": {
"address": "0x622efA6Ceb83a5b6EdBC931332f4db68B7f74F27"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"properties": {
"address": {
"description": "EVM address on Base",
"pattern": "^0x[0-9a-fA-F]{40}$",
"type": "string"
}
},
"required": [
"address"
]
},
"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": {
"data": {
"properties": {
"address": {
"type": "string"
},
"block_number": {
"type": "integer"
},
"chain_id": {
"type": "integer"
},
"checked_at": {
"format": "date-time",
"type": "string"
},
"eth": {
"description": "ETH balance as decimal string",
"type": "string"
},
"eth_wei": {
"type": "string"
},
"network": {
"enum": [
"base"
],
"type": "string"
},
"tx_count": {
"type": "integer"
},
"usdc": {
"description": "USDC balance as decimal string (6 decimals)",
"type": "string"
},
"usdc_atomic": {
"type": "string"
},
"usdc_contract": {
"type": "string"
},
"x402_calls_affordable": {
"properties": {
"at_0_002": {
"type": "integer"
},
"at_0_005": {
"type": "integer"
}
},
"type": "object"
}
},
"required": [
"address",
"network",
"eth",
"usdc",
"usdc_atomic",
"block_number",
"checked_at"
],
"type": "object"
},
"success": {
"type": "boolean"
}
},
"required": [
"success",
"data"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}