gpt55.558686.xyz
No description published for this endpoint.
InferenceLiveeip155:8453Exactvia facilitator:payAI
Calls · 30d
1→ 0%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 32 snapshots so far.
$49.82
Verified settled volume
A floor: summed over 5,000 of 8,194 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/tools/x402-mcp-integration-kit",
"tags": [
"x402-mcp",
"mcp",
"claude-desktop",
"integration-kit",
"buyer-onboarding"
],
"iconUrl": "https://gpt55.558686.xyz/favicon.ico",
"category": "developer-tool",
"mimeType": "application/json",
"description": "Generate a deterministic buyer integration package for an x402/MCP service: MCP remote server config, Claude Desktop-style config hints, curl discovery checks, x402 quote test commands, endpoint selection, spending caps, and verification checklist without calling an upstream model. GET variant for agents, crawlers, and wallets that prefer query parameters over a JSON body. Pay up to $0.006 per request with x402 USDC on Base.",
"serviceName": "gpt55-token-gateway"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"base_url": "https://gpt55.558686.xyz",
"service_name": "GPT55 Model Gateway",
"max_usdc_per_call": 0.01
}
},
"output": {
"type": "json",
"example": {
"ok": true,
"mcp": {
"configUrl": "https://gpt55.558686.xyz/mcp/config",
"remoteUrl": "https://gpt55.558686.xyz/mcp"
},
"tool": "x402McpIntegrationKit",
"x402": {
"discoveryUrl": "https://gpt55.558686.xyz/.well-known/x402",
"livePricesUrl": "https://gpt55.558686.xyz/x402/live-prices.json",
"maxUsdcPerCall": 0.01
},
"baseUrl": "https://gpt55.558686.xyz",
"serviceName": "GPT55 Model Gateway",
"spendPolicy": {
"payTo": "0x1f0130669ca6fd02e025a984cc038f139df19a2f",
"network": "eip155:8453",
"maxUsdcPerCall": 0.01,
"stopOnMismatch": true
},
"receiptGateConfig": {
"requiredHeaders": [
"x-x402-receipt-id",
"x-x402-receipt-url"
],
"storeReceiptWithPaidResult": true
},
"mcpRuntimeInstallPlan": {
"configUrl": "https://gpt55.558686.xyz/mcp/config",
"remoteMcpServer": "https://gpt55.558686.xyz/mcp",
"claudeDesktopConfig": {
"mcpServers": {
"gpt-5-5-x402-gateway": {}
}
}
},
"claudeDesktopConfigJson": "{mcpServers:{gpt-5-5-x402-gateway:{type:streamable-http,url:https://gpt55.558686.xyz/mcp}}}",
"x402PaymentClientHandoff": {
"quoteFirst": true,
"paidEndpoint": "https://gpt55.558686.xyz/v1/tools/x402-mcp-integration-kit",
"paymentHeader": "X-PAYMENT",
"privateKeySentToService": false
},
"mcpPaidToolOnboardingPackage": {
"version": "2026-06-24.mcp-paid-tool-onboarding.v2",
"includes": [
"claudeDesktopConfigJson",
"x402PaymentClientHandoff"
],
"buyerOwnedRuntime": true,
"paymentSentByThisService": false
}
}
}
},
"schema": {
"type": "object",
"$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",
"properties": {
"url": {
"type": "string",
"maxLength": 2048,
"minLength": 1
},
"base_url": {
"type": "string",
"maxLength": 2048,
"minLength": 1
},
"serviceName": {
"type": "string",
"maxLength": 160
},
"service_name": {
"type": "string",
"maxLength": 160
},
"max_usdc_per_call": {
"type": "number",
"maximum": 100,
"minimum": 0.000001
},
"preferred_endpoint": {
"type": "string",
"maxLength": 2048
},
"include_claude_desktop": {
"type": "boolean"
}
},
"additionalProperties": false
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"additionalProperties": true
}
}
}
}
}
}
},
"x402Version": 2,
"buyerPaymentHandoff": {
"quote": {
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"payTo": "0x1f0130669ca6fd02e025a984cc038f139df19a2f",
"scheme": "exact",
"status": 402,
"network": "eip155:8453",
"amountUsd": 0.006,
"amountAtomic": "6000"
},
"route": {
"id": "mcp-integration-kit",
"method": "POST",
"paidUrl": "https://gpt55.558686.xyz/v1/tools/x402-mcp-integration-kit"
},
"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": "ROUTE_ID=mcp-integration-kit MAX_USDC=0.02 node first-payment-client.mjs",
"realPayment": "PAY_REAL_X402=1 ROUTE_ID=mcp-integration-kit MAX_USDC=0.02 EVM_PRIVATE_KEY=$EVM_PRIVATE_KEY node first-payment-client.mjs",
"firstPaymentClientJson": "https://gpt55.558686.xyz/x402/first-payment-client.json",
"walletFundingPreflight": "ROUTE_ID=mcp-integration-kit WALLET_ADDRESS=0xBuyerWallet USDC_AVAILABLE=<base-usdc-balance> MAX_USDC=0.02 node first-payment-client.mjs"
},
"copyPasteCurl": "curl -i -X POST \"https://gpt55.558686.xyz/v1/tools/x402-mcp-integration-kit\" -H \"content-type: application/json\" -d '{\"base_url\":\"https://gpt55.558686.xyz\",\"service_name\":\"gpt55-token-gateway\",\"max_usdc_per_call\":0.02}'",
"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": {
"base_url": "https://gpt55.558686.xyz",
"service_name": "gpt55-token-gateway",
"max_usdc_per_call": 0.02
},
"x402FetchClient": {
"maxUsdc": "0.02",
"package": "@x402/fetch",
"routeId": "mcp-integration-kit",
"firstPaymentClientJson": "https://gpt55.558686.xyz/x402/first-payment-client.json"
},
"buyerExecutionPack": {
"id": "mcp-integration-kit-quote-to-payment-execution-pack",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"payTo": "0x1f0130669ca6fd02e025a984cc038f139df19a2f",
"method": "POST",
"maxUsdc": "0.02",
"network": "eip155:8453",
"paidUrl": "https://gpt55.558686.xyz/v1/tools/x402-mcp-integration-kit",
"routeId": "mcp-integration-kit",
"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/tools/x402-mcp-integration-kit\",\"method\":\"POST\",\"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": "ROUTE_ID=mcp-integration-kit MAX_USDC=0.02 node first-payment-client.mjs",
"realPaymentCommand": "PAY_REAL_X402=1 ROUTE_ID=mcp-integration-kit MAX_USDC=0.02 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"
]
},
"nextHighValuePurchase": {
"price": "$2.90",
"method": "GET or POST",
"source": "payment-required-quote",
"paidUrl": "https://gpt55.558686.xyz/v1/paid/wallet-payment-activation-agent",
"routeId": "wallet-payment-activation-agent",
"fromRouteId": "mcp-integration-kit",
"amountAtomic": "2900000",
"installThenPay": "npm install @x402/fetch @x402/core @x402/evm viem && PAY_REAL_X402=1 ROUTE_ID=wallet-payment-activation-agent MAX_USDC=2.90 EVM_PRIVATE_KEY=$EVM_PRIVATE_KEY node first-payment-client.mjs",
"expectedNetwork": "eip155:8453",
"quoteOnlyCommand": "ROUTE_ID=wallet-payment-activation-agent MAX_USDC=2.90 node first-payment-client.mjs",
"paymentSentByDefault": false,
"privateKeySentToService": false,
"dedicatedFirstPaymentClient": "https://gpt55.558686.xyz/x402/first-payment-client.mjs"
},
"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": "POST",
"scheme": "exact",
"network": "eip155:8453",
"paidUrl": "https://gpt55.558686.xyz/v1/tools/x402-mcp-integration-kit",
"purpose": "short-official-x402-quote-to-payment-handoff",
"routeId": "mcp-integration-kit",
"amountUsd": 0.006,
"retryHeader": "X-PAYMENT",
"amountAtomic": "6000",
"clientPackage": "@x402/fetch",
"quoteOnlyCommand": "ROUTE_ID=mcp-integration-kit MAX_USDC=0.02 node first-payment-client.mjs",
"realPaymentCommand": "PAY_REAL_X402=1 ROUTE_ID=mcp-integration-kit MAX_USDC=0.02 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": "ROUTE_ID=mcp-integration-kit WALLET_ADDRESS=0xBuyerWallet USDC_AVAILABLE=<base-usdc-balance> MAX_USDC=0.02 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 18:45Z
- 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
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 32 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 gpt55.558686.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=gpt55.558686.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://gpt55.558686.xyz/v1/tools/x402-mcp-integration-kit, 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.