DevX Multichain Balances
Wallet balances in one call on 9 chains: native + USDC, USDT, DAI, EURC, bridged USDC, WETH, WBTC/cbBTC on Base, Ethereum, Arbitrum, Optimism, Polygon, Avalanche, BNB Chain; SOL + USDC/USDT on Solana; TRX + USDT on Tron. Pass 0x, Solana and/or Tron addresses, plus up to 10 custom tokens. Live reads, block numbers, stablecoin total. 0.002 USDC.
DataLiveeip155:8453Exactvia cdp
WalletBalancesOnchain-dataerc20Multichain
Calls · 30d
7↑ 14%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 18 snapshots so far.
$3.17
Verified settled volume
113 settlements proven x402 by their on-chain EIP-3009 marker.
$0.0020
Listed price
As published in the catalog. Always read the live 402 before paying.
7
Calls · 30d
Upstream's own call count for this endpoint, not ours.
5
Unique payers · 30d
Last called 2026-11-04 13:05Z
–
Upstream on-chain volume
Reported by the source catalog.
Paid to
0xB3cDDccEe6B150c8efFD55B961afc0Ecefe7f247The wallet the 402 directs payment to. Its full payment record 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.
Recent payments · which agents last used it
Every indexed settlement paid to this service’s wallet, newest first. The index does not record which endpoint a payment was for, so if this wallet serves more than one endpoint, the rows include payments for the others. Paged up to the newest 5,000; the full history is on the merchant page.
Live 402 challenge
Captured by the enrichment pass, not read just now. Prices can change. Always read the 402 the endpoint answers with.
{
"error": "X-PAYMENT header is required (x402 v1) or PAYMENT-SIGNATURE (x402 v2, see PAYMENT-REQUIRED header)",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xB3cDDccEe6B150c8efFD55B961afc0Ecefe7f247",
"scheme": "exact",
"network": "base",
"mimeType": "application/json",
"resource": "https://wallet-balances.nextill-pos.workers.dev/v1/balances",
"description": "Wallet balances in one call on 9 chains: native + USDC, USDT, DAI, EURC, bridged USDC, WETH, WBTC/cbBTC on Base, Ethereum, Arbitrum, Optimism, Polygon, Avalanche, BNB Chain; SOL + USDC/USDT on Solana; TRX + USDT on Tron. Pass 0x, Solana and/or Tron addresses, plus up to 10 custom tokens. Live reads, block numbers, stablecoin total. 0.002 USDC.",
"outputSchema": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"chains": {
"type": "string",
"required": false,
"description": "comma list of 7 EVM chains, solana, tron; default all matching the addresses"
},
"tokens": {
"type": "string",
"required": false,
"description": "chain:token,... custom ERC-20/SPL mint/TRC-20 (max 10)"
},
"address": {
"type": "string",
"required": true,
"description": "wallet address(es), comma list: EVM 0x, Solana base58, Tron T... (max one each)"
}
},
"discoverable": true
},
"output": {
"type": "object",
"properties": {
"chains": {
"type": "object",
"properties": {
"base": {
"type": "object",
"properties": {
"ok": {
"type": "boolean"
},
"block": {
"type": "number"
},
"native": {
"type": "object",
"properties": {
"symbol": {
"type": "string"
},
"balance": {
"type": "string"
}
}
},
"tokens": {
"type": "array",
"items": {
"type": "object",
"properties": {
"raw": {
"type": "string"
},
"symbol": {
"type": "string"
},
"address": {
"type": "string"
},
"balance": {
"type": "string"
},
"decimals": {
"type": "number"
},
"stablecoin": {
"type": "boolean"
}
}
}
},
"chain_id": {
"type": "number"
},
"stablecoins_usd_face_value": {
"type": "number"
}
}
}
}
},
"address": {
"type": "string"
},
"summary": {
"type": "object",
"properties": {
"chains_failed": {
"type": "array"
},
"chains_with_funds": {
"type": "array",
"items": {
"type": "string"
}
},
"stablecoins_usd_face_value_total": {
"type": "number"
}
}
}
}
}
},
"maxAmountRequired": "2000",
"maxTimeoutSeconds": 120
}
],
"resource": {
"url": "https://wallet-balances.nextill-pos.workers.dev/v1/balances",
"tags": [
"wallet",
"balances",
"onchain-data",
"erc20",
"multichain",
"solana",
"tron",
"usdt",
"base",
"agents",
"x402"
],
"mimeType": "application/json",
"description": "Wallet balances in one call on 9 chains: native + USDC, USDT, DAI, EURC, bridged USDC, WETH, WBTC/cbBTC on Base, Ethereum, Arbitrum, Optimism, Polygon, Avalanche, BNB Chain; SOL + USDC/USDT on Solana; TRX + USDT on Tron. Pass 0x, Solana and/or Tron addresses, plus up to 10 custom tokens. Live reads, block numbers, stablecoin total. 0.002 USDC.",
"serviceName": "DevX Multichain Balances"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"chains": "base,ethereum",
"address": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045"
},
"discoverable": true
},
"output": {
"type": "json",
"example": {
"chains": {
"base": {
"ok": true,
"block": 53299201,
"native": {
"symbol": "ETH",
"balance": "3.128822813472737"
},
"tokens": [
{
"raw": "79528679",
"symbol": "USDC",
"address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"balance": "79.528679",
"decimals": 6,
"stablecoin": true
}
],
"chain_id": 8453,
"stablecoins_usd_face_value": 94.92
}
},
"address": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
"summary": {
"chains_failed": [],
"chains_with_funds": [
"base"
],
"stablecoins_usd_face_value_total": 94.92
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [
"address"
],
"properties": {
"chains": {
"type": "string",
"description": "comma list of ethereum,base,arbitrum,optimism,polygon,avalanche,bsc,solana,tron (default: all chains matching the given addresses)"
},
"tokens": {
"type": "string",
"description": "optional custom tokens, comma list of chain:token (ERC-20 0x, SPL mint, TRC-20 T...; max 10)"
},
"address": {
"type": "string",
"description": "wallet address(es), comma list, max one each: EVM 0x, Solana base58, Tron T..."
}
}
},
"discoverable": {
"type": "boolean"
}
}
},
"output": {
"type": "object",
"properties": {
"type": {
"type": "string",
"const": "json"
},
"example": {
"type": "object",
"properties": {
"chains": {
"type": "object",
"properties": {
"base": {
"type": "object",
"properties": {
"ok": {
"type": "boolean"
},
"block": {
"type": "number"
},
"native": {
"type": "object",
"properties": {
"symbol": {
"type": "string"
},
"balance": {
"type": "string"
}
}
},
"tokens": {
"type": "array",
"items": {
"type": "object",
"properties": {
"raw": {
"type": "string"
},
"symbol": {
"type": "string"
},
"address": {
"type": "string"
},
"balance": {
"type": "string"
},
"decimals": {
"type": "number"
},
"stablecoin": {
"type": "boolean"
}
}
}
},
"chain_id": {
"type": "number"
},
"stablecoins_usd_face_value": {
"type": "number"
}
}
}
}
},
"address": {
"type": "string"
},
"summary": {
"type": "object",
"properties": {
"chains_failed": {
"type": "array"
},
"chains_with_funds": {
"type": "array",
"items": {
"type": "string"
}
},
"stablecoins_usd_face_value_total": {
"type": "number"
}
}
}
}
}
}
}
}
}
}
},
"x402Version": 1
}Accepts
The payment requirements as published to the catalog. Read the live 402 before paying: a price here is a claim, not a quote.
0.002USDC≈ $0.002 USD
on Base · exact scheme
Pay 0.002 USDC on Base to 0xB3cD…7f247. The signed payment is good for 2 minutes.
- Paid to
- 0xB3cD…7f247
- USD Coin contract
- 0x8335…02913
- Payment window
- 2 minutes
- As published
- 2000 smallest units
- Buys
- Wallet balances in one call on 9 chains: native + USDC, USDT, DAI, EURC, bridged USDC, WETH, WBTC/cbBTC on Base, Ethereum, Arbitrum, Optimism, Polygon, Avalanche, BNB Chain; SOL + USDC/USDT on Solana; TRX + USDT on Tron. Pass 0x, Solana and/or Tron addresses, plus up to 10 custom tokens. Live reads, block numbers, stablecoin total. 0.002 USDC.
- Returns
- application/json
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xB3cDDccEe6B150c8efFD55B961afc0Ecefe7f247",
"amount": "2000",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://wallet-balances.nextill-pos.workers.dev/v1/balances",
"description": "Wallet balances in one call on 9 chains: native + USDC, USDT, DAI, EURC, bridged USDC, WETH, WBTC/cbBTC on Base, Ethereum, Arbitrum, Optimism, Polygon, Avalanche, BNB Chain; SOL + USDC/USDT on Solana; TRX + USDT on Tron. Pass 0x, Solana and/or Tron addresses, plus up to 10 custom tokens. Live reads, block numbers, stablecoin total. 0.002 USDC.",
"maxAmountRequired": "2000",
"maxTimeoutSeconds": 120
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"chains": "base,ethereum",
"address": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045"
},
"discoverable": true
},
"output": {
"type": "json",
"example": {
"chains": {
"base": {
"ok": true,
"block": 53299201,
"native": {
"symbol": "ETH",
"balance": "3.128822813472737"
},
"tokens": [
{
"raw": "79528679",
"symbol": "USDC",
"address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"balance": "79.528679",
"decimals": 6,
"stablecoin": true
}
],
"chain_id": 8453,
"stablecoins_usd_face_value": 94.92
}
},
"address": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
"summary": {
"chains_failed": [],
"chains_with_funds": [
"base"
],
"stablecoins_usd_face_value_total": 94.92
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [
"address"
],
"properties": {
"chains": {
"type": "string",
"description": "comma list of ethereum,base,arbitrum,optimism,polygon,avalanche,bsc,solana,tron (default: all chains matching the given addresses)"
},
"tokens": {
"type": "string",
"description": "optional custom tokens, comma list of chain:token (ERC-20 0x, SPL mint, TRC-20 T...; max 10)"
},
"address": {
"type": "string",
"description": "wallet address(es), comma list, max one each: EVM 0x, Solana base58, Tron T..."
}
}
},
"discoverable": {
"type": "boolean"
}
}
},
"output": {
"type": "object",
"properties": {
"type": {
"type": "string",
"const": "json"
},
"example": {
"type": "object",
"properties": {
"chains": {
"type": "object",
"properties": {
"base": {
"type": "object",
"properties": {
"ok": {
"type": "boolean"
},
"block": {
"type": "number"
},
"native": {
"type": "object",
"properties": {
"symbol": {
"type": "string"
},
"balance": {
"type": "string"
}
}
},
"tokens": {
"type": "array",
"items": {
"type": "object",
"properties": {
"raw": {
"type": "string"
},
"symbol": {
"type": "string"
},
"address": {
"type": "string"
},
"balance": {
"type": "string"
},
"decimals": {
"type": "number"
},
"stablecoin": {
"type": "boolean"
}
}
}
},
"chain_id": {
"type": "number"
},
"stablecoins_usd_face_value": {
"type": "number"
}
}
}
}
},
"address": {
"type": "string"
},
"summary": {
"type": "object",
"properties": {
"chains_failed": {
"type": "array"
},
"chains_with_funds": {
"type": "array",
"items": {
"type": "string"
}
},
"stablecoins_usd_face_value_total": {
"type": "number"
}
}
}
}
}
}
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-11-04 13:05Z
- Last indexed by Roundhouse
- 2026-11-14 13:00Z
- Last enriched (probe, favicon, geo)
- 2026-11-01 22:46Z
- x402 version
- 2
- Max timeout
- 120s
- Liveness probe
- HTTP 402
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. 18 snapshots so far. Verified volume counts only settlements with an on-chain EIP-3009 marker.
Show the promptHide the prompt
Using Roundhouse, look up the x402 service DevX Multichain 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=DevX%20Multichain%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://wallet-balances.nextill-pos.workers.dev/v1/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.