Base Gas Snapshot
Live Base x402 transfer fee from the rail index.
Tradingoffline · HTTP 525eip155:8453Exactvia cdp
GasBasex402
Settlements · 30d
2↓ 100%
No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days.
$13.12
Verified settled volume
3,394 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.
1
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-08-13 08:33Z
–
Upstream on-chain volume
Reported by the source catalog.
Paid to
0xc85f0CF16F5e677bBE5dFc94662Cc86F2FbA0604The 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.
{
"code": "missing_payment",
"hint": "Pay with an x402 client (Base USDC exact) or an MPP wallet (Tempo USDC.e/pathUSD), then retry with PAYMENT-SIGNATURE or Authorization: Payment. Metadata also in PAYMENT-REQUIRED header. Free contract: ?meta=1",
"name": "Base Gas Snapshot",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"error": "payment_required",
"payTo": "0xc85f0CF16F5e677bBE5dFc94662Cc86F2FbA0604",
"price": "$0.005 USDC per call",
"network": "eip155:8453",
"pricing": {
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"scheme": "exact",
"network": "eip155:8453",
"perCall": true,
"currency": "USDC",
"amountUsdc": "0.005",
"networkName": "Base",
"amountAtomic": "5000"
},
"service": "base-gas-snapshot",
"currency": "USDC",
"provider": "K-2SO",
"priceUsdc": "0.005",
"protocols": [
"x402",
"mpp"
],
"description": "Live Base x402 transfer fee from the rail index.",
"inputSchema": {
"type": "object",
"title": "Base Gas Snapshot query parameters",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"meta": {
"enum": [
"0",
"1"
],
"type": "string",
"description": "Set to 1 for free metadata JSON (no payment required)"
}
},
"additionalProperties": false
},
"networkName": "Base",
"x402Version": 2,
"outputSchema": {
"type": "object",
"title": "Base Gas Snapshot paid response",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"ok",
"paid",
"service",
"provider",
"result"
],
"properties": {
"ok": {
"type": "boolean"
},
"paid": {
"type": "boolean"
},
"result": {
"type": "object",
"required": [
"ok",
"service"
],
"properties": {
"ok": {
"type": "boolean",
"description": "Handler success"
},
"score": {
"type": "number"
},
"service": {
"type": "string",
"description": "Service slug"
},
"summary": {
"type": "string"
},
"evidence": {
"type": "object"
},
"strengths": {
"type": "array",
"items": {
"type": "string"
}
},
"confidence": {
"type": "string"
},
"generatedAt": {
"type": "string",
"description": "ISO-8601 timestamp"
},
"riskFactors": {
"type": "array",
"items": {
"type": "string"
}
}
}
},
"payment": {
"type": "object",
"properties": {
"code": {
"type": "string"
},
"payer": {
"type": "string"
},
"detail": {
"type": "string"
},
"selfPay": {
"type": "boolean"
},
"transaction": {
"type": "string"
}
}
},
"service": {
"type": "string"
},
"provider": {
"type": "string",
"const": "K-2SO"
}
}
},
"verifyDetail": "missing PAYMENT-SIGNATURE"
}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≈ $0.005 USD
on Base · exact scheme
Pay 0.005 USDC on Base to 0xc85f…A0604. The signed payment is good for 5 minutes.
- Paid to
- 0xc85f…A0604
- USD Coin contract
- 0x8335…02913
- Payment window
- 5 minutes
- As published
- 5000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xc85f0CF16F5e677bBE5dFc94662Cc86F2FbA0604",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"meta": "0"
}
},
"output": {
"type": "json",
"example": {
"ok": true,
"paid": true,
"result": {
"ok": true,
"service": "base-gas-snapshot"
},
"service": "base-gas-snapshot",
"provider": "K-2SO"
}
}
},
"schema": {
"type": "object",
"$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",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"type": "object",
"properties": {
"meta": {
"enum": [
"0",
"1"
],
"type": "string",
"description": "Set to 1 for free metadata JSON (no payment required)"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"title": "Base Gas Snapshot paid response",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"ok",
"paid",
"service",
"provider",
"result"
],
"properties": {
"ok": {
"type": "boolean"
},
"paid": {
"type": "boolean"
},
"result": {
"type": "object",
"required": [
"ok",
"service"
],
"properties": {
"ok": {
"type": "boolean",
"description": "Handler success"
},
"score": {
"type": "number"
},
"service": {
"type": "string",
"description": "Service slug"
},
"summary": {
"type": "string"
},
"evidence": {
"type": "object"
},
"strengths": {
"type": "array",
"items": {
"type": "string"
}
},
"confidence": {
"type": "string"
},
"generatedAt": {
"type": "string",
"description": "ISO-8601 timestamp"
},
"riskFactors": {
"type": "array",
"items": {
"type": "string"
}
}
}
},
"payment": {
"type": "object",
"properties": {
"code": {
"type": "string"
},
"payer": {
"type": "string"
},
"detail": {
"type": "string"
},
"selfPay": {
"type": "boolean"
},
"transaction": {
"type": "string"
}
}
},
"service": {
"type": "string"
},
"provider": {
"type": "string",
"const": "K-2SO"
}
}
}
}
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-08-13 08:33Z
- Last indexed by Roundhouse
- 2026-08-29 00:30Z
- Last enriched (probe, favicon, geo)
- 2026-09-21 15:15Z
- x402 version
- 2
- Max timeout
- 300s
- Liveness probe
- HTTP 525
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 Base Gas Snapshot 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=Base%20Gas%20Snapshot' 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://k2so.wrong.systems/api/services/base-gas-snapshot, 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.