Roundhouse

Bulk wallet balances

Bulk wallet balances on Ethereum, Base, Arc or BNB Chain: up to 50 wallets in one call, the native coin or one ERC20 you name, all read at the same block through Multicall3. Pass ?addresses=0x..,0x..&token=&chain=. Cheaper than 50 single calls, and every row is from one consistent block.

DataLiveeip155:8453Exactvia facilitator:payAI
https://apexfaucet.xyz/api/x402/evm-balances-bulk
Bulk balancesWallet balanceMulticallerc20Portfolio
Calls · 30d
2
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 20 snapshots so far.
$6.17
Verified settled volume
623 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.
—
Calls · 30d
Upstream's own call count for this endpoint, not ours.
—
Unique payers · 30d
Never called
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0xd334ab5151c624cada654854e2879903dc4217ed

The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.

Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Provider
Coming soonAPEX FaucetERC-8004

Live 402 challenge

Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.

{
  "note": "X1 is a Solana fork. The same address (HYiepS7mNCVVKoaDmZLQ6rNtMWHTQqKheM1NLGn1x8kJ) receives funds on both chains. Solana-native agents can pay USDC without bridging anything.",
  "error": "missing required parameter: addresses — nothing has been charged.",
  "usage": "/api/x402/evm-balances-bulk?addresses=0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045,0x024b82335C29Fa5606a8ea5c1D24FC9eAD50700C",
  "accepts": [
    {
      "rpc": "https://api.mainnet-beta.solana.com",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "D93NE2kMj88BPsHfdZZ4A1HX2CGo14Y18Bdb3J4qtD5c"
      },
      "payTo": "HYiepS7mNCVVKoaDmZLQ6rNtMWHTQqKheM1NLGn1x8kJ",
      "amount": "5000",
      "scheme": "exact",
      "symbol": "USDC",
      "chainId": "solana-mainnet",
      "network": "solana",
      "decimals": 6,
      "mimeType": "application/json",
      "priceUsd": "~$0.005",
      "receiver": "HYiepS7mNCVVKoaDmZLQ6rNtMWHTQqKheM1NLGn1x8kJ",
      "resource": "https://apexfaucet.xyz/api/x402/evm-balances-bulk",
      "priceMinor": 5000,
      "description": "Bulk wallet balances on Ethereum, Base, Arc or BNB Chain: up to 50 wallets in one call, the native coin or one ERC20 you name, all read at the same block through Multicall3. Pass ?addresses=0x..,0x..&token=&chain=. Cheaper than 50 single calls, and every row is from one consistent block.",
      "networkName": "solana",
      "validForSec": 300,
      "networkCaip2": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "outputSchema": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "chain": "base",
            "token": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
            "addresses": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045,0x024b82335C29Fa5606a8ea5c1D24FC9eAD50700C"
          },
          "discoverable": true
        },
        "output": {
          "type": "json",
          "schema": {
            "type": "object",
            "properties": {
              "ok": {
                "type": "boolean"
              },
              "data": {
                "type": "object"
              },
              "paid": {
                "type": "number"
              }
            }
          },
          "example": {
            "ok": true,
            "data": {
              "ok": true,
              "asset": {
                "token": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
                "symbol": "USDC",
                "decimals": 6
              },
              "block": 52561137,
              "chain": "base",
              "count": 2,
              "balances": [
                {
                  "raw": "44783666",
                  "address": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
                  "balance": "44.783666"
                },
                {
                  "raw": "17147",
                  "address": "0x024b82335C29Fa5606a8ea5c1D24FC9eAD50700C",
                  "balance": "0.017147"
                }
              ],
              "blockTime": "2026-10-13T17:13:41.000Z"
            },
            "paid": 0.005
          }
        }
      },
      "priceDisplay": "0.005 USDC",
      "replayHeader": "X-PAYMENT-SOL",
      "maxAmountRequired": "5000",
      "maxTimeoutSeconds": 300
    },
    {
      "rpc": "https://rpc.mainnet.arc.io",
      "asset": "0x3600000000000000000000000000000000000000",
      "extra": {
        "name": "USDC",
        "note": "Standard x402: sign an EIP-3009 transferWithAuthorization for this amount to payTo and send it base64 in PAYMENT-SIGNATURE - we settle it, you pay no gas. Or, because USDC is also the native gas token on Arc, send a plain value transfer to payTo and replay the transaction hash in X-PAYMENT-ARC.",
        "version": "2",
        "credentialTypes": [
          "authorization"
        ]
      },
      "payTo": "0xd334ab5151c624cada654854e2879903dc4217ed",
      "amount": "5000",
      "scheme": "exact",
      "symbol": "USDC",
      "chainId": 5042,
      "network": "arc",
      "decimals": 6,
      "mimeType": "application/json",
      "priceUsd": "~$0.005",
      "receiver": "0xd334ab5151c624cada654854e2879903dc4217ed",
      "resource": "https://apexfaucet.xyz/api/x402/evm-balances-bulk",
      "priceMinor": 5000,
      "description": "Bulk wallet balances on Ethereum, Base, Arc or BNB Chain: up to 50 wallets in one call, the native coin or one ERC20 you name, all read at the same block through Multicall3. Pass ?addresses=0x..,0x..&token=&chain=. Cheaper than 50 single calls, and every row is from one consistent block.",
      "networkName": "arc",
      "validForSec": 300,
      "networkCaip2": "eip155:5042",
      "priceDisplay": "0.005 USDC",
      "replayHeader": "X-PAYMENT-ARC",
      "maxAmountRequired": "5000",
      "maxTimeoutSeconds": 300
    },
    {
      "rpc": "https://mainnet.base.org",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "note": "Standard x402: sign an EIP-3009 transferWithAuthorization for this amount to payTo and send it base64 in PAYMENT-SIGNATURE — we settle it, you pay no gas. Or send USDC to payTo and replay the tx hash in X-PAYMENT-BASE.",
        "version": "2",
        "credentialTypes": [
          "authorization"
        ]
      },
      "payTo": "0xd334ab5151c624cada654854e2879903dc4217ed",
      "amount": "5000",
      "scheme": "exact",
      "symbol": "USDC",
      "chainId": 8453,
      "network": "base",
      "decimals": 6,
      "mimeType": "application/json",
      "priceUsd": "~$0.005",
      "receiver": "0xd334ab5151c624cada654854e2879903dc4217ed",
      "resource": "https://apexfaucet.xyz/api/x402/evm-balances-bulk",
      "priceMinor": 5000,
      "description": "Bulk wallet balances on Ethereum, Base, Arc or BNB Chain: up to 50 wallets in one call, the native coin or one ERC20 you name, all read at the same block through Multicall3. Pass ?addresses=0x..,0x..&token=&chain=. Cheaper than 50 single calls, and every row is from one consistent block.",
      "networkName": "base",
      "validForSec": 300,
      "networkCaip2": "eip155:8453",
      "priceDisplay": "0.005 USDC",
      "replayHeader": "X-PAYMENT-BASE",
      "maxAmountRequired": "5000",
      "maxTimeoutSeconds": 300
    },
    {
      "rpc": "https://rpc.mainnet.x1.xyz",
      "note": "X1 is an SVM chain without a registered CAIP-2 namespace; standard x402 clients cannot pay on it. Pay the USDC option, or send XNT yourself and replay the signature.",
      "asset": "native",
      "payTo": "HYiepS7mNCVVKoaDmZLQ6rNtMWHTQqKheM1NLGn1x8kJ",
      "amount": "26400000",
      "scheme": "exact",
      "symbol": "XNT",
      "chainId": "x1-mainnet",
      "network": "x1",
      "decimals": 9,
      "mimeType": "application/json",
      "priceUsd": "~$0.005",
      "receiver": "HYiepS7mNCVVKoaDmZLQ6rNtMWHTQqKheM1NLGn1x8kJ",
      "resource": "https://apexfaucet.xyz/api/x402/evm-balances-bulk",
      "priceMinor": 26400000,
      "description": "Bulk wallet balances on Ethereum, Base, Arc or BNB Chain: up to 50 wallets in one call, the native coin or one ERC20 you name, all read at the same block through Multicall3. Pass ?addresses=0x..,0x..&token=&chain=. Cheaper than 50 single calls, and every row is from one consistent block.",
      "networkName": "x1",
      "validForSec": 300,
      "priceDisplay": "0.0264 XNT",
      "replayHeader": "X-PAYMENT",
      "maxAmountRequired": "26400000",
      "maxTimeoutSeconds": 300
    }
  ],
  "revenue": "Payment funds the public APEX faucet — every paid request lets a stranger claim free XNT.",
  "version": "1",
  "cardPass": {
    "buy": "https://apexfaucet.xyz/pass/",
    "what": "$5 by card, tax included: a key that pays this and every other tool at list prices; no crypto wallet needed",
    "header": "X-APEX-PASS"
  },
  "required": [
    {
      "name": "addresses",
      "example": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045,0x024b82335C29Fa5606a8ea5c1D24FC9eAD50700C",
      "description": "Up to 50 wallet addresses, comma separated."
    }
  ],
  "resource": "/api/x402/evm-balances-bulk",
  "standard": "x402",
  "discovery": "/.well-known/x402",
  "facilitator": "/api/x402/verify",
  "x402Version": 1,
  "holderAccess": {
    "rule": "value at the live pool price when you qualify; after that, selling or moving the tokens ends it for good",
    "sign": "personal_sign of \"APEX data access for <your address, lowercase> at <unix seconds>\" with the holding wallet",
    "chain": "Arc (eip155:5042)",
    "tiers": [
      {
        "free": "lifetime",
        "holdUsd": 10000
      },
      {
        "free": "year",
        "holdUsd": 500
      },
      {
        "free": "month",
        "holdUsd": 50
      }
    ],
    "token": "0xaaedbd8c51645c6669692d32c67625527121f3aa",
    "header": "X-APEX-HOLDER: <address>.<unix seconds>.<signature>",
    "dailyCap": 1000,
    "buyFaucet": "https://ubi.fun/markets/0xaaedbd8c51645c6669692d32c67625527121f3aa",
    "lifetimeKey": {
      "buy": "https://apexfaucet.xyz/api/pay/unlock?product=lifetime&tx=<transaction>",
      "header": "X-Unlock",
      "priceUsd": 10000
    }
  },
  "instructions": [
    "Standard x402 clients: sign the Solana USDC option (exact scheme, fee payer D93NE2kMj88BPsHfdZZ4A1HX2CGo14Y18Bdb3J4qtD5c) and send it in the PAYMENT-SIGNATURE header. We settle it and return PAYMENT-RESPONSE with the transaction.",
    "Or pay yourself on ONE network and replay the signature:",
    "— Solana USDC: send 0.005 USDC to HYiepS7mNCVVKoaDmZLQ6rNtMWHTQqKheM1NLGn1x8kJ on Solana mainnet; replay with header X-PAYMENT-SOL: <tx_sig>",
    "— X1 native: send 0.0264 XNT to HYiepS7mNCVVKoaDmZLQ6rNtMWHTQqKheM1NLGn1x8kJ on rpc.mainnet.x1.xyz; replay with header X-PAYMENT: <tx_sig>",
    "Every payment is verified on chain before the content is served."
  ]
}

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 0xd334…217ed. The signed payment is good for 5 minutes.

Paid to
0xd334…217ed
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",
      "note": "Sign an EIP-3009 transferWithAuthorization to payTo and send it base64 in PAYMENT-SIGNATURE - we settle it and you pay no gas. Or pay and replay the hash in X-PAYMENT-BASE.",
      "version": "2",
      "replayHeader": "X-PAYMENT-BASE",
      "credentialTypes": [
        "authorization"
      ]
    },
    "payTo": "0xd334ab5151c624cada654854e2879903dc4217ed",
    "amount": "5000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "type": "http",
        "method": "GET",
        "queryParams": {
          "chain": "base",
          "token": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
          "addresses": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045,0x024b82335C29Fa5606a8ea5c1D24FC9eAD50700C"
        },
        "discoverable": true
      },
      "output": {
        "type": "json",
        "schema": {
          "type": "object",
          "properties": {
            "ok": {
              "type": "boolean"
            },
            "data": {
              "type": "object"
            },
            "paid": {
              "type": "number"
            }
          }
        },
        "example": {
          "ok": true,
          "data": {
            "ok": true,
            "asset": {
              "token": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
              "symbol": "USDC",
              "decimals": 6
            },
            "block": 52561137,
            "chain": "base",
            "count": 2,
            "balances": [
              {
                "raw": "44783666",
                "address": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
                "balance": "44.783666"
              },
              {
                "raw": "17147",
                "address": "0x024b82335C29Fa5606a8ea5c1D24FC9eAD50700C",
                "balance": "0.017147"
              }
            ],
            "blockTime": "2026-10-13T17:13:41.000Z"
          },
          "paid": 0.005
        }
      }
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "input"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "method",
            "queryParams"
          ],
          "properties": {
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "GET"
              ],
              "type": "string"
            },
            "queryParams": {
              "type": "object",
              "required": [
                "addresses"
              ],
              "properties": {
                "chain": {
                  "enum": [
                    "ethereum",
                    "base",
                    "arc",
                    "bnb"
                  ],
                  "type": "string",
                  "description": "Chain: ethereum, base, arc or bnb. Default ethereum."
                },
                "token": {
                  "type": "string",
                  "pattern": "^0x[0-9a-fA-F]{40}$",
                  "description": "Optional ERC20; without it, the native coin."
                },
                "addresses": {
                  "type": "string",
                  "pattern": "^0x[0-9a-fA-F]{40}(,0x[0-9a-fA-F]{40}){0,49}$",
                  "description": "Up to 50 wallet addresses, comma separated."
                }
              }
            }
          }
        },
        "output": {
          "type": "object"
        }
      }
    }
  }
}

Provenance

Seen in the source catalog
2026-10-13 17:13Z
Last indexed by Roundhouse
2026-10-24 09:47Z
Last enriched (probe, favicon, geo)
2026-10-14 04:16Z
x402 version
2
Max timeout
300s
Liveness probe
HTTP 402
Report

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

This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 20 snapshots so far. Verified volume counts only settlements with an on-chain EIP-3009 marker.

Open skill.md
Show the prompt
Using Roundhouse, look up the x402 service Bulk wallet balances 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=Bulk%20wallet%20balances'
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://apexfaucet.xyz/api/x402/evm-balances-bulk, 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.