1gateway
Use when a contract deploy, test suite or CI job needs more Sepolia gas than a faucet gives: one x402 call, no faucet login or mainnet history. Input: to (recipient address); sends 1 SepETH. Output: JSON txHash (confirmed before settling), explorerUrl, amountEth, from, to. Daily limits (UTC): 5 SepETH per address (both sizes), 20 overall; checked before payment. Test ETH has no monetary value. Example: ?to=0x000000000000000000000000000000000000dEaD
The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.
Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
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.
Pay 0.5 USDC on Base to 0x6246…cC5a1. The signed payment is good for 5 minutes.
- Paid to
- 0x6246…cC5a1
- USD Coin contract
- 0x8335…02913
- Payment window
- 5 minutes
- As published
- 500000 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
- AwV6UZ…L26WT
- Token contract
- EPjFWd…TDt1v
- Payment window
- 5 minutes
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x6246eee0355Dd7A93C888fE59e1151388A0cC5a1",
"amount": "500000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"
},
"payTo": "AwV6UZobYPyTdsuNa2NknZZrnmmUoH5ckEv3wNgL26WT",
"amount": "500000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 300
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"to": "0x000000000000000000000000000000000000dEaD"
}
},
"output": {
"type": "json",
"example": {
"to": "0x000000000000000000000000000000000000dEaD",
"from": "0xdB00079cad3e665853Bf766eFe26F4C38cdbdCDA",
"nonce": 42,
"notes": [
"Sepolia test ETH has no monetary value; it is for testing only."
],
"status": "confirmed",
"txHash": "0x5e5e5e5e5e5e5e5e5e5e5e5e5e5e5e5e5e5e5e5e5e5e5e5e5e5e5e5e5e5e5e5e",
"chainId": 11155111,
"network": "sepolia",
"amountEth": "1",
"amountWei": "1000000000000000000",
"blockNumber": 11978027,
"explorerUrl": "https://sepolia.etherscan.io/tx/0x5e5e5e5e5e5e5e5e5e5e5e5e5e5e5e5e5e5e5e5e5e5e5e5e5e5e5e5e5e5e5e5e"
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [
"to"
],
"properties": {
"to": {
"type": "string",
"pattern": "^0x[0-9a-fA-F]{40}$",
"examples": [
"0x000000000000000000000000000000000000dEaD"
],
"description": "Recipient Ethereum address (EIP-55 checksum if mixed case). Bad input, caps reached or out of stock → 4xx/503 before payment (not charged)"
}
},
"additionalProperties": false
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"network",
"chainId",
"status",
"blockNumber",
"amountEth",
"amountWei",
"from",
"to",
"txHash",
"nonce",
"explorerUrl",
"notes"
],
"properties": {
"to": {
"type": "string"
},
"from": {
"type": "string"
},
"nonce": {
"type": "integer"
},
"notes": {
"type": "array",
"items": {
"type": "string"
}
},
"status": {
"type": "string"
},
"txHash": {
"type": "string"
},
"chainId": {
"type": "integer"
},
"network": {
"type": "string"
},
"amountEth": {
"type": "string"
},
"amountWei": {
"type": "string"
},
"blockNumber": {
"type": "integer"
},
"explorerUrl": {
"type": "string"
}
}
}
}
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-10-24 15:24Z
- Last indexed by Roundhouse
- 2026-10-26 14:50Z
- Last enriched (probe, favicon, geo)
- 2026-10-24 18:46Z
- x402 version
- 2
- Max timeout
- 300s
- 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
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 1gateway 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=1gateway' 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://1gateway.dev/v1/testnet/sepolia-eth/1, 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.