EVM gas price + latest block
Latest block and gas price on Ethereum, Base, Arc or BNB Chain: block number, its time and age in seconds, gas price and base fee in gwei, transaction count and chain id. Pass ?chain=
The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.
Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Accepts
The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.
Pay 0.001 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
- 1000 smallest units
That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.
- Paid to
- 0xd334…217ed
- Token contract
- 0x3600…00000
- Payment window
- 5 minutes
That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.
- Paid to
- 0xd334…217ed
- Token contract
- 0x3600…00000
- Payment window
- 168 hours
Pay 0.001 USDC on Base to 0xd334…217ed. The signed payment is good for 168 hours.
- Paid to
- 0xd334…217ed
- USD Coin contract
- 0x8335…02913
- Payment window
- 168 hours
- As published
- 1000 smallest units
That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.
- Paid to
- HYiepS…1x8kJ
- Token contract
- EPjFWd…TDt1v
- Payment window
- 5 minutes
That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.
- Paid to
- 0xd334…217eD
- Token contract
- 0x8d0D…08B0d
- Payment window
- 5 minutes
That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.
- Paid to
- 0xd334…217eD
- Token contract
- 0xcE24…66666
- Payment window
- 5 minutes
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": "1000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "0x3600000000000000000000000000000000000000",
"extra": {
"rpc": "https://rpc.mainnet.arc.io",
"name": "USDC",
"note": "Sign an EIP-3009 transferWithAuthorization to payTo and send it base64 in PAYMENT-SIGNATURE - we settle it and you pay no gas. Or, since USDC is also the native gas token on Arc, send a plain value transfer to payTo and replay the hash in X-PAYMENT-ARC. Finality is instant on inclusion.",
"version": "2",
"replayHeader": "X-PAYMENT-ARC",
"credentialTypes": [
"authorization"
]
},
"payTo": "0xd334ab5151c624cada654854e2879903dc4217ed",
"amount": "1000",
"scheme": "exact",
"network": "eip155:5042",
"maxTimeoutSeconds": 300
},
{
"asset": "0x3600000000000000000000000000000000000000",
"extra": {
"name": "GatewayWalletBatched",
"note": "Circle Gateway nanopayment: pay from your Gateway balance with a gas-free signature (validBefore at least 7 days out). Settled by Circle in batches.",
"version": "1",
"verifyingContract": "0x77777777dcc4d5a8b6e418fd04d8997ef11000ee"
},
"payTo": "0xd334ab5151c624cada654854e2879903dc4217ed",
"amount": "1000",
"scheme": "exact",
"network": "eip155:5042",
"maxTimeoutSeconds": 604900
},
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "GatewayWalletBatched",
"note": "Circle Gateway nanopayment: pay from your Gateway balance with a gas-free signature (validBefore at least 7 days out). Settled by Circle in batches.",
"version": "1",
"verifyingContract": "0x77777777dcc4d5a8b6e418fd04d8997ef11000ee"
},
"payTo": "0xd334ab5151c624cada654854e2879903dc4217ed",
"amount": "1000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 604900
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "D93NE2kMj88BPsHfdZZ4A1HX2CGo14Y18Bdb3J4qtD5c"
},
"payTo": "HYiepS7mNCVVKoaDmZLQ6rNtMWHTQqKheM1NLGn1x8kJ",
"amount": "1000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 300
},
{
"asset": "0x8d0D000Ee44948FC98c9B98A4FA4921476f08B0d",
"extra": {
"name": "World Liberty Financial USD",
"note": "BNB Smart Chain: sign an EIP-3009 transferWithAuthorization in USD1 (18 decimals, EIP-712 name \"World Liberty Financial USD\", version \"1\") to payTo and send it base64 in PAYMENT-SIGNATURE; we settle it and pay the gas. Minimum $0.01 on BNB.",
"minUsd": 0.01,
"symbol": "USD1",
"version": "1",
"decimals": 18,
"credentialTypes": [
"authorization"
]
},
"payTo": "0xd334AB5151C624cAdA654854E2879903Dc4217eD",
"amount": "10000000000000000",
"scheme": "exact",
"network": "eip155:56",
"maxTimeoutSeconds": 300
},
{
"asset": "0xcE24439F2D9C6a2289F741120FE202248B666666",
"extra": {
"name": "United Stables",
"note": "BNB Smart Chain: sign an EIP-3009 transferWithAuthorization in U (18 decimals, EIP-712 name \"United Stables\", version \"1\") to payTo and send it base64 in PAYMENT-SIGNATURE; we settle it and pay the gas. Minimum $0.01 on BNB.",
"minUsd": 0.01,
"symbol": "U",
"version": "1",
"decimals": 18,
"credentialTypes": [
"authorization"
]
},
"payTo": "0xd334AB5151C624cAdA654854E2879903Dc4217eD",
"amount": "10000000000000000",
"scheme": "exact",
"network": "eip155:56",
"maxTimeoutSeconds": 300
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"chain": "base"
},
"discoverable": true
},
"output": {
"type": "json",
"schema": {
"type": "object",
"properties": {
"ok": {
"type": "boolean"
},
"data": {
"type": "object"
},
"paid": {
"type": "number"
}
}
},
"example": {
"ok": true,
"data": {
"ok": true,
"block": 52559420,
"chain": "base",
"chainId": 8453,
"txCount": 130,
"blockTime": "2026-10-13T16:16:27.000Z",
"ageSeconds": 2,
"baseFeeGwei": "0.005",
"gasPriceGwei": "0.006"
},
"paid": 0.001
}
}
},
"schema": {
"type": "object",
"$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",
"properties": {
"chain": {
"enum": [
"ethereum",
"base",
"arc",
"bnb"
],
"type": "string",
"description": "Chain to read: ethereum, base, arc or bnb. Default ethereum."
}
}
}
}
},
"output": {
"type": "object"
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-10-15 01:24Z
- Last indexed by Roundhouse
- 2026-10-19 12:30Z
- Last enriched (probe, favicon, geo)
- 2026-10-13 16:46Z
- x402 version
- 2
- Max timeout
- 300s
- Liveness probe
- HTTP 502
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.
Show the promptHide the prompt
Using Roundhouse, look up the x402 service EVM gas price + latest block 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=EVM%20gas%20price%20%2B%20latest%20block' 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-block, 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.