Read ETH and caller-selected ERC-20 balances for a Base address at one finalized
Read ETH and caller-selected ERC-20 balances for a Base address at one finalized block. Exact integer amounts, optional contract-reported metadata, explicit per-token errors. No token discovery or price estimates.
Answeringour last check, 2026-10-25
1 of 1checks answered this week
912 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://kair-os.trade/base-wallet/snapshot
| Category | Market data |
|---|---|
| Provider host | kair-os.trade |
| 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 |
|---|---|---|---|---|
| 2026-10-25 | valid payment request | 402 | $0.003 | 912 ms |
Example input (from the provider)
{
"body": {
"address": "0xab9F87d1faC370eFdCb50Ffb5d45FEc0C4bdC2bf",
"tokens": [
"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"0x4200000000000000000000000000000000000006"
]
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"address": {
"description": "Nonzero Base wallet address.",
"pattern": "^0x[0-9a-fA-F]{40}$",
"type": "string"
},
"tokens": {
"description": "1\u201320 unique nonzero ERC-20 contract addresses; duplicate comparison is case-insensitive.",
"items": {
"pattern": "^0x[0-9a-fA-F]{40}$",
"type": "string"
},
"maxItems": 20,
"minItems": 1,
"type": "array",
"uniqueItems": true
}
},
"required": [
"address",
"tokens"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}