Read an ERC20 token contract on Base or Ethereum mainnet
Read an ERC20 token contract on Base or Ethereum mainnet: name, symbol, decimals, total supply, and optionally the balance of one holder address. Verifies that the address is a contract. Params: token (contract address, required), chain ('base' default or 'ethereum'), holder (optional address).
Answeringour last check, 2026-10-10
1 of 1checks answered this week
893 msmedian answer time
$0.0045listed price per call
$0.0045price 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/erc20-info
| 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 | $0.0045 | 893 ms |
Example input (from the provider)
{
"body": {
"chain": "base",
"holder": "0x622efA6Ceb83a5b6EdBC931332f4db68B7f74F27",
"token": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"properties": {
"chain": {
"default": "base",
"enum": [
"base",
"ethereum"
],
"type": "string"
},
"holder": {
"description": "Optional address whose token balance to return",
"pattern": "^0x[0-9a-fA-F]{40}$",
"type": "string"
},
"token": {
"description": "ERC20 contract address",
"pattern": "^0x[0-9a-fA-F]{40}$",
"type": "string"
}
},
"required": [
"token"
]
},
"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": {
"chain": {
"type": "string"
},
"chain_id": {
"type": "integer"
},
"checked_at": {
"format": "date-time",
"type": "string"
},
"decimals": {
"type": [
"integer",
"null"
]
},
"explorer": {
"type": "string"
},
"holder": {
"properties": {
"address": {
"type": "string"
},
"balance": {
"type": "string"
},
"balance_raw": {
"type": "string"
}
},
"type": [
"object",
"null"
]
},
"name": {
"type": [
"string",
"null"
]
},
"symbol": {
"type": [
"string",
"null"
]
},
"token": {
"type": "string"
},
"total_supply": {
"type": [
"string",
"null"
]
},
"total_supply_raw": {
"type": [
"string",
"null"
]
}
},
"required": [
"chain",
"token",
"symbol",
"decimals"
],
"type": "object"
},
"success": {
"type": "boolean"
}
},
"required": [
"success",
"data"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}