x402-seller.558686.xyz
No description published for this endpoint.
DataLiveeip155:8453Exactvia facilitator:payAI
Settlements · 30d
67↓ 56%
No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days.
$49.81
Verified settled volume
A floor: summed over 5,000 of 8,197 verified settlements.
$0.0060
Listed price
As published in the catalog. Always read the live 402 before paying.
—
Calls · 30d
Upstream's own call count for this endpoint, not ours.
—
Unique payers · 30d
Never called
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x1f0130669ca6fd02e025a984cc038f139df19a2fThe 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.
Live 402 challenge
Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2",
"x402Provider": "xpay"
},
"payTo": "0x1f0130669ca6fd02e025a984cc038f139df19a2f",
"amount": "6000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://gpt55.558686.xyz/v1/paid/x402-seller-mini-check",
"tags": [
"x402-seller-mini-check",
"x402-merchant-readiness",
"merchant-readiness",
"buyer-ready-api-audit",
"x402-market-benchmark"
],
"iconUrl": "https://gpt55.558686.xyz/favicon.ico",
"category": "developer-tool",
"mimeType": "application/json",
"description": "Lowest-friction paid x402 seller mini-check for machine buyers. Runs the market benchmark entry point for x402 and paid MCP sellers that want a quick competitor price and directory positioning snapshot before buying the full growth plan. Short stable alias for marketplace probes and machine buyers. Pay up to $0.006 per request with x402 USDC on Base.",
"serviceName": "gpt55-token-gateway"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"limit": 50,
"pages": 1,
"query": "ai",
"sources": [
"x402.direct",
"cdp-bazaar"
],
"page_size": 50
}
},
"output": {
"type": "json",
"example": {
"ok": true,
"tool": "x402MarketBenchmark",
"query": "ai",
"aiLikeCount": 18,
"pricedCount": 42,
"ownPriceComparison": [
{
"id": "chat-completions-standard",
"path": "/v1/chat/completions/standard",
"price": 0.00293,
"display": "$0.00293",
"belowMarketMedian": true
}
],
"aiLikePriceSummaryUsd": {
"max": 1,
"min": 0.0001,
"p25": 0.01,
"p75": 0.08,
"count": 18,
"median": 0.03
}
}
}
},
"schema": {
"type": "object",
"$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"
},
"pathParams": {
"type": "object",
"additionalProperties": true
},
"queryParams": {
"type": "object",
"required": [
"query"
],
"properties": {
"limit": {
"type": "integer",
"maximum": 100,
"minimum": 1
},
"pages": {
"type": "integer",
"maximum": 3,
"minimum": 1
},
"query": {
"type": "string",
"maxLength": 120,
"minLength": 1
},
"sources": {
"type": "array",
"items": {
"enum": [
"402index",
"x402.direct",
"x402scout",
"cinderwright",
"pay-sh",
"cdp-bazaar",
"agora402",
"x402-list",
"a2alist",
"payai-discovery",
"gate402"
],
"type": "string"
},
"maxItems": 10
},
"page_size": {
"type": "integer",
"maximum": 100,
"minimum": 10
},
"timeout_ms": {
"type": "integer",
"maximum": 15000,
"minimum": 1000
}
},
"additionalProperties": false
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"properties": {
"ok": {
"type": "boolean"
},
"tool": {
"type": "string"
},
"fetchedAt": {
"type": "string"
}
},
"additionalProperties": true
}
}
}
}
}
}
},
"x402Version": 2,
"buyerPaymentHandoff": {
"quote": {
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"payTo": "0x1f0130669ca6fd02e025a984cc038f139df19a2f",
"scheme": "exact",
"status": 402,
"network": "eip155:8453",
"amountUsd": 0.006,
"amountAtomic": "6000"
},
"route": {
"id": "seller-mini-check",
"method": "GET",
"paidUrl": "https://gpt55.558686.xyz/v1/paid/x402-seller-mini-check"
},
"purpose": "buyer-owned-wallet-first-payment",
"warning": "Do not paste a private key into a website, chat, directory, or server. Run the payment command only in a buyer-controlled shell.",
"commands": {
"install": "npm install @x402/fetch @x402/core @x402/evm viem",
"download": "curl -fsSLO https://gpt55.558686.xyz/x402/first-payment-client.mjs",
"quoteOnly": "TARGET_URL=\"https://gpt55.558686.xyz/v1/paid/x402-seller-mini-check\" MAX_USDC=0.01 node first-payment-client.mjs",
"realPayment": "PAY_REAL_X402=1 TARGET_URL=\"https://gpt55.558686.xyz/v1/paid/x402-seller-mini-check\" MAX_USDC=0.01 EVM_PRIVATE_KEY=$EVM_PRIVATE_KEY node first-payment-client.mjs",
"firstPaymentClientJson": "https://gpt55.558686.xyz/x402/first-payment-client.json",
"walletFundingPreflight": "TARGET_URL=\"https://gpt55.558686.xyz/v1/paid/x402-seller-mini-check\" WALLET_ADDRESS=0xBuyerWallet USDC_AVAILABLE=<base-usdc-balance> MAX_USDC=0.01 node first-payment-client.mjs"
},
"copyPasteCurl": "curl -i \"https://gpt55.558686.xyz/v1/paid/x402-seller-mini-check?query=ai&limit=50\"",
"checksBeforePay": [
"status is HTTP 402 payment-required",
"amountAtomic matches route price",
"selected accepts[] entry matches either expected Base or Solana network and merchant wallet",
"payTo matches the selected network merchant wallet",
"amountUsd is within MAX_USDC spend cap",
"PAY_REAL_X402=1 is explicitly set only after local review",
"EVM_PRIVATE_KEY or SVM_PRIVATE_KEY stays in the buyer-owned runtime and is never sent to the service"
],
"minimalJsonBody": {
"limit": 50,
"query": "ai",
"sources": [
"x402.direct",
"cdp-bazaar"
]
},
"x402FetchClient": {
"maxUsdc": "0.01",
"package": "@x402/fetch",
"routeId": "seller-mini-check",
"firstPaymentClientJson": "https://gpt55.558686.xyz/x402/first-payment-client.json"
},
"buyerExecutionPack": {
"id": "seller-mini-check-quote-to-payment-execution-pack",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"payTo": "0x1f0130669ca6fd02e025a984cc038f139df19a2f",
"method": "GET",
"maxUsdc": "0.01",
"network": "eip155:8453",
"paidUrl": "https://gpt55.558686.xyz/v1/paid/x402-seller-mini-check",
"routeId": "seller-mini-check",
"amountUsd": 0.006,
"retryHeader": "X-PAYMENT",
"amountAtomic": "6000",
"installCommand": "npm install @x402/fetch @x402/core @x402/evm viem",
"failureFallback": {
"id": "x402-payment-failure-doctor",
"paidUrl": "https://gpt55.558686.xyz/v1/tools/x402-payment-failure-doctor",
"quoteOnlyCommand": "curl -i -X POST \"https://gpt55.558686.xyz/v1/tools/x402-payment-failure-doctor\" -H \"content-type: application/json\" -d '{\"url\":\"https://gpt55.558686.xyz/v1/paid/x402-seller-mini-check\",\"method\":\"GET\",\"status\":402,\"x_payment_header_present\":false,\"expected_pay_to\":\"0x1f0130669ca6fd02e025a984cc038f139df19a2f\",\"expected_network\":\"eip155:8453\",\"expected_amount_atomic\":\"6000\"}'"
},
"safeToPayChecks": [
"statusIs402",
"amountMatchesRoute",
"networkMatches",
"payToMatches",
"withinSpendCap"
],
"successEvidence": [
"paid.status=200",
"paid.headers.x-x402-receipt-id",
"paid.headers.x-x402-receipt-url",
"paid.json.decision",
"local last-run.evidence.json"
],
"quoteOnlyCommand": "TARGET_URL=\"https://gpt55.558686.xyz/v1/paid/x402-seller-mini-check\" MAX_USDC=0.01 node first-payment-client.mjs",
"realPaymentCommand": "PAY_REAL_X402=1 TARGET_URL=\"https://gpt55.558686.xyz/v1/paid/x402-seller-mini-check\" MAX_USDC=0.01 EVM_PRIVATE_KEY=$EVM_PRIVATE_KEY node first-payment-client.mjs",
"downloadClientCommand": "curl -fsSLO https://gpt55.558686.xyz/x402/first-payment-client.mjs",
"expectedResponseHeader": "X-PAYMENT-RESPONSE",
"privateKeySentToService": false,
"sameRequestRetryRequired": true
},
"privateKeySentToService": false,
"expectedReceiptAfterPayment": [
"mode",
"paymentSent",
"paid.status",
"paid.headers.x-x402-receipt-id",
"paid.headers.x-x402-receipt-url",
"paid.json"
]
},
"quoteToPaymentHandoff": {
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"payTo": "0x1f0130669ca6fd02e025a984cc038f139df19a2f",
"steps": [
"Read accepts[0] and this handoff from the HTTP 402 JSON body.",
"Create X-PAYMENT locally with @x402/fetch or an equivalent buyer-owned x402 client; never send the private key to this service.",
"Retry the exact same method, URL, query, body, and content-type with X-PAYMENT.",
"Treat HTTP 200 plus X-PAYMENT-RESPONSE or x-x402 receipt headers as payment evidence."
],
"method": "GET",
"scheme": "exact",
"network": "eip155:8453",
"paidUrl": "https://gpt55.558686.xyz/v1/paid/x402-seller-mini-check",
"purpose": "short-official-x402-quote-to-payment-handoff",
"routeId": "seller-mini-check",
"amountUsd": 0.006,
"retryHeader": "X-PAYMENT",
"amountAtomic": "6000",
"clientPackage": "@x402/fetch",
"quoteOnlyCommand": "TARGET_URL=\"https://gpt55.558686.xyz/v1/paid/x402-seller-mini-check\" MAX_USDC=0.01 node first-payment-client.mjs",
"realPaymentCommand": "PAY_REAL_X402=1 TARGET_URL=\"https://gpt55.558686.xyz/v1/paid/x402-seller-mini-check\" MAX_USDC=0.01 EVM_PRIVATE_KEY=$EVM_PRIVATE_KEY node first-payment-client.mjs",
"sameRequestRequired": true,
"expectedResponseHeader": "X-PAYMENT-RESPONSE",
"firstPaymentClientJson": "https://gpt55.558686.xyz/x402/first-payment-client.json",
"privateKeySentToService": false,
"walletFundingPreflightCommand": "TARGET_URL=\"https://gpt55.558686.xyz/v1/paid/x402-seller-mini-check\" WALLET_ADDRESS=0xBuyerWallet USDC_AVAILABLE=<base-usdc-balance> MAX_USDC=0.01 node first-payment-client.mjs"
}
}Accepts
The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.
0.006USDC≈ $0.006 USD
on Base · exact scheme
Pay 0.006 USDC on Base to 0x1f01…19a2f. The signed payment is good for 5 minutes.
- Paid to
- 0x1f01…19a2f
- USD Coin contract
- 0x8335…02913
- Payment window
- 5 minutes
- As published
- 6000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x1f0130669ca6fd02e025a984cc038f139df19a2f",
"amount": "6000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
]Provenance
- Seen in the source catalog
- 2026-07-06 00:56Z
- Last indexed by Roundhouse
- 2026-09-24 03:15Z
- Last enriched (probe, favicon, geo)
- 2026-09-18 14:45Z
- 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 x402-seller.558686.xyz 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=x402-seller.558686.xyz' 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://x402-seller.558686.xyz/v1/tools/x402-market-benchmark, 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. Mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402, or use an organization key from https://roundhouseai.io/dashboard/team. If you do not have Roundhouse tools or skills installed, read https://roundhouseai.io/skill.md first — it is the whole procedure.