1gateway
Use when an agent must price or time a Base transaction. Input: none. Output: JSON current and next base fee, priority fee tiers (slow/standard/fast from the last 20 blocks), suggested maxFeePerGas, block fullness, and typical cost of an ETH transfer, ERC-20 transfer/approve, DEX swap, NFT mint and contract deploy (L2 fee + L1 data fee) in ETH and USD. Example: /v1/onchain/base/gas
SearchLiveeip155:8453Exactvia cdp
BaseGasFeesTransaction-costOnchain
Calls · 30d
2
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 5 snapshots so far.
$1.16
Verified settled volume
188 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.
2
Calls · 30d
Upstream's own call count for this endpoint, not ours.
2
Unique payers · 30d
Last called 2026-10-19 00:25Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x6246eee0355Dd7A93C888fE59e1151388A0cC5a1The 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.
0.002USDC≈ $0.002 USD
on Base · exact scheme
Pay 0.002 USDC on Base to 0x6246…cC5a1. The signed payment is good for 5 minutes.
- Paid to
- 0x6246…cC5a1
- USD Coin contract
- 0x8335…02913
- Payment window
- 5 minutes
- As published
- 2000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x6246eee0355Dd7A93C888fE59e1151388A0cC5a1",
"amount": "2000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {}
},
"output": {
"type": "json",
"example": {
"rpc": {
"kind": "public",
"source": "base-rpc.publicnode.com"
},
"note": "Costs use the next base fee + the standard (median 50th-percentile) tip over the last 20 blocks, plus the L1 data fee upper bound from the GasPriceOracle. Gas …",
"block": {
"number": 52774276,
"timestamp": "2026-10-18T15:38:19.000Z",
"gasUsedPct": 11.7
},
"chain": "base",
"costs": [
{
"label": "ETH transfer",
"action": "eth_transfer",
"l2FeeEth": 1.26e-7,
"totalEth": 1.267e-7,
"totalUsd": 0.0003011,
"typicalGas": 21000,
"l1DataFeeEth": 7.056e-10
}
],
"ethUsd": 2376,
"chainId": 8453,
"suggested": {
"fast": {
"maxFeePerGasGwei": 0.0122,
"maxPriorityFeePerGasGwei": 0.0022
},
"slow": {
"maxFeePerGasGwei": 0.0105,
"maxPriorityFeePerGasGwei": 0.0005001
},
"standard": {
"maxFeePerGasGwei": 0.011,
"maxPriorityFeePerGasGwei": 0.001
}
},
"baseFeeGwei": 0.005,
"recentBlocks": {
"count": 20,
"avgGasUsedPct": 8.5
},
"nextBaseFeeGwei": 0.005,
"priorityFeeGwei": {
"fast": 0.0022,
"node": 0.001,
"slow": 0.0005001,
"standard": 0.001
}
}
}
},
"schema": {
"type": "object",
"$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",
"required": [],
"properties": {},
"additionalProperties": false
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"chain",
"chainId",
"block",
"baseFeeGwei",
"nextBaseFeeGwei",
"priorityFeeGwei",
"suggested",
"recentBlocks",
"ethUsd",
"costs",
"rpc",
"note"
],
"properties": {
"rpc": {
"type": "object",
"properties": {
"kind": {
"type": "string"
},
"source": {
"type": "string"
}
}
},
"note": {
"type": "string"
},
"block": {
"type": "object",
"properties": {
"number": {
"type": "integer"
},
"timestamp": {
"type": [
"string",
"null"
]
},
"gasUsedPct": {
"type": [
"number",
"null"
]
}
}
},
"chain": {
"type": "string"
},
"costs": {
"type": "array",
"items": {
"type": "object",
"properties": {
"label": {
"type": "string"
},
"action": {
"type": "string"
},
"l2FeeEth": {
"type": "number"
},
"totalEth": {
"type": "number"
},
"totalUsd": {
"type": [
"number",
"null"
]
},
"typicalGas": {
"type": "integer"
},
"l1DataFeeEth": {
"type": [
"number",
"null"
]
}
}
}
},
"ethUsd": {
"type": [
"number",
"null"
]
},
"chainId": {
"type": "integer"
},
"suggested": {
"type": "object",
"properties": {
"fast": {
"type": "object",
"properties": {
"maxFeePerGasGwei": {
"type": "number"
},
"maxPriorityFeePerGasGwei": {
"type": "number"
}
}
},
"slow": {
"type": "object",
"properties": {
"maxFeePerGasGwei": {
"type": "number"
},
"maxPriorityFeePerGasGwei": {
"type": "number"
}
}
},
"standard": {
"type": "object",
"properties": {
"maxFeePerGasGwei": {
"type": "number"
},
"maxPriorityFeePerGasGwei": {
"type": "number"
}
}
}
}
},
"baseFeeGwei": {
"type": "number"
},
"recentBlocks": {
"type": "object",
"properties": {
"count": {
"type": "integer"
},
"avgGasUsedPct": {
"type": [
"number",
"null"
]
}
}
},
"nextBaseFeeGwei": {
"type": "number"
},
"priorityFeeGwei": {
"type": "object",
"properties": {
"fast": {
"type": "number"
},
"node": {
"type": "number"
},
"slow": {
"type": "number"
},
"standard": {
"type": "number"
}
}
}
}
}
}
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-10-19 00:25Z
- Last indexed by Roundhouse
- 2026-10-23 21:40Z
- Last enriched (probe, favicon, geo)
- 2026-10-18 17:15Z
- 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
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 5 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 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/onchain/base/gas, 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.