gapfill
Balances of a Base address: ETH and 22 major Base tokens (USDC, WETH, cbBTC, cbETH, DAI, AERO, DEGEN and more), plus up to 20 token addresses passed, read live in one batch, with USD prices from Chainlink feeds on Base or the deepest Uniswap/Aerodrome pool, and a total. Only listed tokens are checked; it is not a full portfolio. For checking a wallet's funds before a payment or trade.
TradingUnknowneip155:8453Exactvia cdp
BaseWalletBalancesPortfolioerc20
Settlements · 30d
17
No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days.
$0.07
Verified settled volume
17 settlements proven x402 by their on-chain EIP-3009 marker.
$0.0050
Listed price
As published in the catalog. Always read the live 402 before paying.
1
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-10-26 10:38Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x91A71892231A256d69d4bf8a442234701a762AaFThe wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.
Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Provider
The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service — most of the catalog is unregistered.
Accepts
The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.
0.005USDC≈ $0.005 USD
on Base · exact scheme
Pay 0.005 USDC on Base to 0x91A7…62AaF. The signed payment is good for 5 minutes.
- Paid to
- 0x91A7…62AaF
- USD Coin contract
- 0x8335…02913
- Payment window
- 5 minutes
- As published
- 5000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x91A71892231A256d69d4bf8a442234701a762AaF",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"chain": "base",
"address": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"data": [
{
"chain": "base",
"listed": true,
"address": "0xd8da6bf26964af9d7eed9e03e53415d37aa96045",
"decimals": 18,
"price_usd": 2294.9002,
"value_usd": 7180.34,
"raw_amount": "3128822813472737280",
"token_name": "Ether",
"price_source": "Chainlink ETH/USD on Base",
"token_amount": 3.12882281347,
"token_symbol": "ETH",
"token_address": "0xeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee"
},
{
"chain": "base",
"listed": true,
"address": "0xd8da6bf26964af9d7eed9e03e53415d37aa96045",
"decimals": 18,
"price_usd": 0.00089370836,
"value_usd": 2681.64,
"raw_amount": "3000574185146692290319902",
"token_name": "Degen",
"price_source": "Uniswap v3 DEGEN/WETH 0.3% pool 0xc9034c3e7f58003e6ae0c8438e7c8f4598d5acaa",
"token_amount": 3000574.18515,
"token_symbol": "DEGEN",
"token_address": "0x4ed4e862860bed51a9570b96d89af5e1b0efefed"
},
{
"chain": "base",
"listed": true,
"address": "0xd8da6bf26964af9d7eed9e03e53415d37aa96045",
"decimals": 18,
"price_usd": 2294.9002,
"value_usd": 510.64,
"raw_amount": "222512739074208417",
"token_name": "Wrapped Ether",
"price_source": "Chainlink ETH/USD on Base",
"token_amount": 0.222512739074,
"token_symbol": "WETH",
"token_address": "0x4200000000000000000000000000000000000006"
},
{
"chain": "base",
"listed": true,
"address": "0xd8da6bf26964af9d7eed9e03e53415d37aa96045",
"decimals": 6,
"price_usd": 0.99985622,
"value_usd": 78.98,
"raw_amount": "78995979",
"token_name": "USD Coin",
"price_source": "Chainlink USDC/USD on Base",
"token_amount": 78.995979,
"token_symbol": "USDC",
"token_address": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913"
},
{
"chain": "base",
"listed": true,
"address": "0xd8da6bf26964af9d7eed9e03e53415d37aa96045",
"decimals": 6,
"price_usd": 0.99821821,
"value_usd": 6.76,
"raw_amount": "6768453",
"token_name": "Tether USD",
"price_source": "Aerodrome Slipstream USDT/WETH (tick spacing 100) pool 0x9785ef59e2b499fb741674ecf6faf912df7b3c1b",
"token_amount": 6.768453,
"token_symbol": "USDT",
"token_address": "0xfde4c96c8593536e31f229ea8f37b2ada2699bb2"
}
],
"block": 53098758,
"chain": "base",
"source": "Base mainnet over public JSON-RPC (Multicall3 balanceOf and getEthBalance); prices from Chainlink feeds on Base and Uniswap/Aerodrome pool reserves",
"address": "0xd8da6bf26964af9d7eed9e03e53415d37aa96045",
"checked": [
"ETH",
"USDC",
"WETH",
"USDbC",
"cbBTC",
"cbETH",
"DAI",
"USDS",
"USDT",
"EURC",
"wstETH",
"rETH",
"weETH",
"LBTC",
"tBTC",
"AERO",
"VIRTUAL",
"ZORA",
"MORPHO",
"WELL",
"DEGEN",
"BRETT",
"TOSHI"
],
"eth_usd": {
"price": 2294.90020373,
"source": "Chainlink ETH/USD on Base",
"updatedAt": "2026-10-26T03:51:09.000Z"
},
"chain_id": 8453,
"coverage": "Only ETH and 22 listed Base tokens (plus any token addresses passed) are checked: this is not a full portfolio. Other tokens, NFTs and DeFi positions (LP, lending, staking) aren't seen.",
"problems": [],
"unpriced": [],
"pagination": {
"page": 1,
"total": 14,
"per_page": 100,
"is_last_page": true
},
"tokens_checked": 23,
"total_value_usd": 10470.29,
"eip7702_delegate": "0x5a7fc11397e9a8ad41bf10bf13f22b0a63f96f6d",
"address_is_contract": false
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"required": [
"address"
],
"properties": {
"chain": {
"enum": [
"base"
],
"type": "string",
"description": "Base only (the default)"
},
"tokens": {
"type": "array",
"items": {
"type": "string"
},
"maxItems": 20,
"description": "Up to 20 more token addresses to check besides the listed ones"
},
"address": {
"type": "string",
"pattern": "^0x[0-9a-fA-F]{40}$",
"description": "The Base address (0x…; names aren't resolved)"
},
"pagination": {
"type": "object",
"properties": {
"page": {
"type": "integer",
"minimum": 1
},
"per_page": {
"type": "integer",
"maximum": 100,
"minimum": 1
}
},
"description": "Default page 1 of 100"
},
"hide_spam_token": {
"type": "boolean",
"description": "Accepted as Nansen takes it; the listed tokens carry no spam"
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"address",
"chain",
"block",
"data",
"pagination",
"total_value_usd",
"tokens_checked",
"coverage"
],
"properties": {
"data": {
"type": "array",
"items": {
"type": "object",
"required": [
"chain",
"address",
"token_address",
"token_symbol"
],
"properties": {
"chain": {
"type": "string"
},
"listed": {
"type": "boolean",
"description": "In the built-in list (false: passed in tokens)"
},
"address": {
"type": "string"
},
"decimals": {
"type": "integer"
},
"price_usd": {
"type": [
"number",
"null"
]
},
"value_usd": {
"type": [
"number",
"null"
]
},
"raw_amount": {
"type": "string",
"description": "Exact, in the token's smallest unit"
},
"token_name": {
"type": [
"string",
"null"
]
},
"price_source": {
"type": [
"string",
"null"
]
},
"token_amount": {
"type": "number"
},
"token_symbol": {
"type": [
"string",
"null"
]
},
"token_address": {
"type": "string",
"description": "0xeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee for ETH"
}
}
},
"description": "Non-zero balances, most valuable first"
},
"block": {
"type": "integer"
},
"chain": {
"type": "string",
"const": "base"
},
"address": {
"type": "string"
},
"checked": {
"type": "array",
"items": {
"type": "string"
}
},
"coverage": {
"type": "string"
},
"problems": {
"type": "array",
"items": {
"type": "string"
}
},
"unpriced": {
"type": "array",
"items": {
"type": "string"
}
},
"pagination": {
"type": "object",
"properties": {
"page": {
"type": "integer"
},
"total": {
"type": "integer"
},
"per_page": {
"type": "integer"
},
"is_last_page": {
"type": "boolean"
}
}
},
"tokens_checked": {
"type": "integer"
},
"total_value_usd": {
"type": "number",
"description": "Sum of the priced balances"
},
"eip7702_delegate": {
"type": [
"string",
"null"
],
"description": "The contract an EOA delegates to under EIP-7702, if any"
},
"address_is_contract": {
"type": "boolean",
"description": "Code at the address (a smart wallet or other contract)"
}
}
}
}
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-10-26 10:38Z
- Last indexed by Roundhouse
- 2026-10-26 17:20Z
- Last enriched (probe, favicon, geo)
- —
- x402 version
- 2
- Max timeout
- 300s
- Liveness probe
- Not probed
Hand this page to an agent
Copy the prompt and paste it into Claude, an MCP client or your own agent — it will vet this service and call it over the free read API. No key, no account.
GET api.roundhouseai.io/v0/endpoints
No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days. Verified volume counts only settlements with an on-chain EIP-3009 marker.
Show the promptHide the prompt
Using Roundhouse, look up the x402 service gapfill and tell me whether it is worth paying: what a call costs, whether the endpoint answered when last probed, and what its payment record actually shows. curl -s 'https://api.roundhouseai.io/v0/endpoints?q=gapfill' curl -s 'https://api.roundhouseai.io/v0/merchants/<the payTo wallet returned above>' Then call it: read the price from the live 402 at https://jotowl.com/v1/base/balances, never from a cached figure, and pay with an x402 client. The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except /v0/unified* and /v0/endpoints. Either pay over x402 (mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402), or ask me for an organization key, which I create at https://roundhouseai.io/dashboard/connections. If you have neither, ask before going further. If you do not have Roundhouse tools or skills installed, read https://roundhouseai.io/skill.md first — it is the whole procedure.