Native and (optional) ERC-20 token balance for a wallet address across major EVM chains (b
Native and (optional) ERC-20 token balance for a wallet address across major EVM chains (base, ethereum, polygon, arbitrum, optimism)
2000 (raw units)
price
1
calls / 30d
1
unique payers
2026-09-09
updated
Provider
x402tap.com · discovered, not yet claimed by its owner
Payment (x402 accepts[])
[
{
"scheme": "exact",
"network": "eip155:8453",
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "2000",
"maxTimeoutSeconds": 300
},
{
"scheme": "exact",
"network": "eip155:137",
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"amount": "2000",
"maxTimeoutSeconds": 300
},
{
"scheme": "exact",
"network": "eip155:42161",
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"amount": "2000",
"maxTimeoutSeconds": 300
},
{
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "9fqXniDAn8hNMYC5C9waGv5u126bkwjU6qGgAoQeoWyo",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"amount": "2000",
"maxTimeoutSeconds": 300
}
]Output schema
{
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"address": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
"chain": "base"
},
"type": "http"
},
"output": {
"example": {
"address": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
"chain": "Base",
"native": {
"balance": "1.24031",
"symbol": "ETH"
},
"token": {
"address": "0x8335...",
"balance": "500.0",
"decimals": 6,
"symbol": "USDC"
}
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"address": {
"description": "EVM wallet address (0x...)",
"type": "string"
},
"chain": {
"description": "Chain to query: base, ethereum, polygon, arbitrum, optimism (default base)",
"type": "string"
},
"token": {
"description": "Optional ERC-20 token contract address to also check",
"type": "string"
}
},
"required": [
"address"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
},
"offer-receipt": {
"info": {
"offers": [
{
"acceptIndex": 0,
"format": "eip712",
"payload": {
"amount": "2000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"network": "eip155:8453",
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"resourceUrl": "https://x402tap.com/api/wallet-balance",
"scheme": "exact",
"validUntil": 1788970737,
"version": 1
},
"signature": "0xd63c12ccf1c47503b10a7f28cd966de3529f8e99990335c24935d99a755cda85754114d147e3cd24a506280d58b92dc41448e76a753af86ca03d9e9925b275be1c"
},
{
"acceptIndex": 1,
"format": "eip712",
"payload": {
"amount": "2000",
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"network": "eip155:137",
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"resourceUrl": "https://x402tap.com/api/wallet-balance",
"scheme": "exact",
"validUntil": 1788970737,
"version": 1
},
"signature": "0x5ad30ea7db117da1fe79caaedd2571e872965eca7b5699d10628eb0d5543f0ba2862e65f5817a36794a6f48b9af44e54fb50ab53f1de4d0dd5861a3d430ddb4e1b"
},
{
"acceptIndex": 2,
"format": "eip712",
"payload": {
"amount": "2000",
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"network": "eip155:42161",
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"resourceUrl": "https://x402tap.com/api/wallet-balance",
"scheme": "exact",
"validUntil": 1788970737,
"version": 1
},
"signature": "0xf701bd868045c4e2de14bd883b6b93cef6756765b95b5592e37ed47234f5e60531153cf900ed8ff568f301d12d574e57a7724b308e8c413636890190b30a223b1b"
},
{
"acceptIndex": 3,
"format": "eip712",
"payload": {
"amount": "2000",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "9fqXniDAn8hNMYC5C9waGv5u126bkwjU6qGgAoQeoWyo",
"resourceUrl": "https://x402tap.com/api/wallet-balance",
"scheme": "exact",
"validUntil": 1788970737,
"version": 1
},
"signature": "0x967761d9b62362068726ac99edeaf540330a06eb235e134632124903748b7e9229e0588326bbca8d22390b58bcd8e254bfea5346cdd6135d15cc0177a6afb7441b"
}
]
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"offers": {
"items": {
"properties": {
"acceptIndex": {
"type": "integer"
},
"format": {
"type": "string"
},
"payload": {
"properties": {
"amount": {
"type": "string"
},
"asset": {
"type": "string"
},
"network": {
"type": "string"
},
"payTo": {
"type": "string"
},
"resourceUrl": {
"type": "string"
},
"scheme": {
"type": "string"
},
"validUntil": {
"type": "integer"
},
"version": {
"type": "integer"
}
},
"required": [
"version",
"resourceUrl",
"scheme",
"network",
"asset",
"payTo",
"amount"
],
"type": "object"
},
"signature": {
"type": "string"
}
},
"required": [
"format",
"signature"
],
"type": "object"
},
"type": "array"
}
},
"required": [
"offers"
],
"type": "object"
}
}
}Use it
curl
curl "https://x402tap.com/api/wallet-balance" # -> 402 Payment Required, accepts[] lists how to pay # retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid
JavaScript
const res = await fetch("https://x402tap.com/api/wallet-balance");
if (res.status === 402) {
const { accepts } = await res.json();
// pay one of accepts[] via an x402 client, then retry with the payment header
}Python
import httpx
res = httpx.get("https://x402tap.com/api/wallet-balance")
if res.status_code == 402:
accepts = res.json()["accepts"]
# pay one of accepts[] via an x402 client, then retry with the payment headerMachine-readable
Everything on this page is also available as clean JSON at /resources/1138.json, and this resource appears in /discovery/resources and /discovery/search.