{"origin":"gpt55.558686.xyz","display_name":"GPT55 Model Gateway","payout_address":"0x1f0130669ca6fd02e025a984cc038f139df19a2f","name":"GPT55 Model Gateway","description":"GPT-5.6 Luna Standard chat is $0.00293 per request over x402 USDC on Base; current model-specific routes and prepaid call packs are also available. Market benchmark: the latest local x402.direct sample found AI-like listing prices with p25 around $0.01 and median around $0.03 per call; this gateway publishes GPT-5.6 Luna Standard at $0.00293 and model-specific prices at /pricing.json. GPT-5.6 Luna Standard is $0.00293 per request, restoring the historically converting public Standard entry quote while preserving the documented cost floor; model-specific routes retain their published Luna-relative price proportions. Service hub: https://gpt55.558686.xyz/x402/service and https://gpt55.558686.xyz/x402/service.json. Discovery assets: https://gpt55.558686.xyz/openapi.json, https://gpt55.558686.xyz/llms.txt, https://gpt55.558686.xyz/tools.json, https://gpt55.558686.xyz/apis.json, https://gpt55.558686.xyz/directory-submission.json. Agent and MCP metadata: https://gpt55.558686.xyz/.well-known/agent-card.json, https://gpt55.558686.xyz/.well-known/ai-catalog.json, https://gpt55.558686.xyz/.well-known/mcp/server-card.json, https://gpt55.558686.xyz/server.json. Integration hub: https://gpt55.558686.xyz/integrations and https://gpt55.558686.xyz/integrations.json. Best for agents that need one-call GPT-5.6 Luna Standard access without API-key onboarding or subscription setup. Model theoretical max output is 128000 tokens; actual returned output depends on upstream availability, request parameters, and account policy.","url":"https://gpt55.558686.xyz/a2a","provider":{"organization":"gpt55-token-gateway","url":"https://gpt55.558686.xyz"},"version":"1.0.0","protocolVersion":"1.0","preferredTransport":"JSONRPC","supportedInterfaces":[{"url":"https://gpt55.558686.xyz/a2a","protocolBinding":"JSONRPC","protocolVersion":"1.0"}],"documentationUrl":"https://gpt55.558686.xyz/llms.txt","defaultInputModes":["application/json"],"defaultOutputModes":["application/json"],"authentication":[{"schemes":["x402"]}],"keyPackDeliveryTrial":{"routeId":"api-codex-key-pack-1","label":"Start the $0.12 delivery trial","price":"$0.12","amountAtomic":"120000","quotaUsd":1,"paidUrl":"https://x402-key.558686.xyz/v1/paid/api-codex-key-pack-1","quoteUrl":"https://x402-key.558686.xyz/x402/quote/api-codex-key-pack-1","paymentActivation":"https://x402-key.558686.xyz/x402/route/api-codex-key-pack-1/payment-activation.json","firstPaymentClient":"https://x402-key.558686.xyz/x402/route/api-codex-key-pack-1/first-payment-client.mjs","purpose":"Validate a buyer-owned Base USDC payment and one-time API key delivery before the commercial purchase.","commercialPackRouteId":"api-codex-key-pack-100","commercialPackPrice":"$11.1112","commercialUpgrade":{"routeId":"api-codex-key-pack-100","price":"$11.1112","amountAtomic":"11111200","quotaUsd":100,"paidUrl":"https://x402-key.558686.xyz/v1/paid/api-codex-key-pack-100","quoteUrl":"https://x402-key.558686.xyz/x402/quote/api-codex-key-pack-100","paymentActivation":"https://x402-key.558686.xyz/x402/route/api-codex-key-pack-100/payment-activation.json","firstPaymentClient":"https://x402-key.558686.xyz/x402/route/api-codex-key-pack-100/first-payment-client.mjs","previousPurchaseAppliedToUpgrade":false,"commercialPackOutcome":"One-time API key, OpenAI-compatible base URL, chat completions URL, models URL, supported models, $100 quota metadata, and receipt evidence."},"trialPaymentCreditsCommercialPack":false,"nonCreditPolicy":"The $0.12 trial does not reduce the commercial pack price."},"links":{"serviceHub":"https://gpt55.558686.xyz/x402/service","serviceHubJson":"https://gpt55.558686.xyz/x402/service.json","agents402":"https://gpt55.558686.xyz/.well-known/agents402.json","openapi":"https://gpt55.558686.xyz/openapi.json","llms":"https://gpt55.558686.xyz/llms.txt","llmsFull":"https://gpt55.558686.xyz/llms-full.txt","toolsJson":"https://gpt55.558686.xyz/tools.json","apisJson":"https://gpt55.558686.xyz/apis.json","directorySubmission":"https://gpt55.558686.xyz/directory-submission.json","aiCatalog":"https://gpt55.558686.xyz/.well-known/ai-catalog.json","mcpServerCard":"https://gpt55.558686.xyz/.well-known/mcp/server-card.json","mcpServerJson":"https://gpt55.558686.xyz/server.json","project":"https://gpt55.558686.xyz/projects/558686/"},"capabilities":{"streaming":false,"tools":true,"paid":true},"payments":{"x402":{"networks":[{"network":"base","asset":"USDC","contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"}]}},"intents":[{"name":"gpt55_standard_chat","description":"OpenAI-compatible GPT-5.6 Luna Standard chat completion over x402 Base USDC.","endpoint":"/v1/chat/completions/standard","method":"POST","price":{"amount":0.00293,"currency":"USDC"}}],"skills":[{"id":"gpt55-chat-completions","name":"GPT-5.6 Luna Standard Chat Completions","description":"Generate responses from the OpenAI-compatible GPT-5.6 Luna Standard endpoint. Price: $0.00293 USDC per request via x402 on Base. Use for summarize text, translate text, answer question, rewrite text, context QA, and short agent responses.","tags":["ai","llm","gpt-5.5","chat","openai-compatible","x402","base-usdc","x402-chat","openai-compatible-chat","pay-per-request","agent-tool","summarize","summarization","tldr","translate","translation","rewrite","editing","grammar","question-answering","qa","context-qa","text-processing","code-review","debugging","json","url-metadata","url-text","url-links","x402-audit","api-audit","buyer-readiness","openapi-audit","http-status","redirect-check","web-metadata","web-scraping","link-extraction","crawler","text-extraction","data-extraction","json-validate","validation","hash","base64","jwt","timestamp","url-parse","querystring","regex","slugify","case-convert","uuid","text-stats","line-diff","structured-output","microtask","rewriting","coding-help"],"examples":["Summarize this paragraph in one sentence.","Translate this short message.","Answer this question concisely."],"inputModes":["application/json"],"outputModes":["application/json"],"price":"$0.00293","payment":{"protocol":"x402","network":"eip155:8453","asset":"USDC","payTo":"0x1f0130669ca6fd02e025a984cc038f139df19a2f"},"endpoint":{"method":"POST","path":"/v1/chat/completions/standard","url":"https://gpt55.558686.xyz/v1/chat/completions/standard"}},{"id":"gpt55-translate","name":"Translate","description":"Translate short text, messages, notes, and snippets to a requested target language for agent workflows, localization, bilingual support replies, and quick multilingual output. Standard quality tier uses gpt-5.6-luna; price is derived from official OpenAI relative token costs with a local margin and floor. Price: $0.00293 USDC per request via x402 on Base. Requested output limit: 64 tokens. Model: gpt-5.6-luna. Buyer search phrases: translate text, cheap translation, localization, bilingual support reply, multilingual agent output, x402 paid tool.","tags":["ai","llm","gpt-5.5","chat","openai-compatible","x402","base-usdc","x402-chat","openai-compatible-chat","pay-per-request","agent-tool","summarize","summarization","tldr","translate","translation"],"examples":["Translate this support reply into Spanish.","Localize this short product update."],"inputModes":["application/json"],"outputModes":["application/json"],"price":"$0.00293","payment":{"protocol":"x402","network":"eip155:8453","asset":"USDC","payTo":"0x1f0130669ca6fd02e025a984cc038f139df19a2f"},"endpoint":{"method":"POST","path":"/v1/tools/translate","url":"https://gpt55.558686.xyz/v1/tools/translate"},"livePrices":"https://gpt55.558686.xyz/x402/live-prices.json"},{"id":"gpt55-x402-buyer-shortlist","name":"x402 Buyer Shortlist","description":"Fetch x402 discovery documents, rank matching resources by advertised price, live-check the cheapest candidates with 402 quote inspection, and return a buyer-ready shortlist with verified amount, scheme, network, payTo, tags, and warnings. This deterministic endpoint does not call an upstream model. Price: $0.005 USDC per request via x402 on Base. No upstream model call. Buyer search phrases: x402 buyer shortlist, find payable APIs, rank x402 resources, buyer discovery, x402 paid tool, Base USDC.","tags":["ai","llm","gpt-5.5","chat","openai-compatible","x402","base-usdc","x402-chat","openai-compatible-chat","pay-per-request","agent-tool","summarize","summarization","tldr","translate","translation"],"examples":["Rank these x402 services before my agent pays.","Find buyer-safe x402 endpoints for translation."],"inputModes":["application/json"],"outputModes":["application/json"],"price":"$0.005","payment":{"protocol":"x402","network":"eip155:8453","asset":"USDC","payTo":"0x1f0130669ca6fd02e025a984cc038f139df19a2f"},"endpoint":{"method":"POST","path":"/v1/tools/x402-buyer-shortlist","url":"https://gpt55.558686.xyz/v1/tools/x402-buyer-shortlist"},"livePrices":"https://gpt55.558686.xyz/x402/live-prices.json"},{"id":"gpt55-wallet-signing-safety-pack","name":"Wallet Signing Safety Pack","description":"Build a single wallet/agent pre-signing decision pack from optional EIP-712 typed data, EVM calldata, expected chain, known addresses, and x402 spend policy. Returns risk levels, risk flags, buyer decision, copy-paste checklist, and first-payment routing hints without using a private key, producing a signature, sending a transaction, broadcasting, or calling external RPC. Price: $0.018 USDC per request via x402 on Base. No upstream model call. Buyer search phrases: wallet signing safety pack, EIP-712 Permit2 safety pack, wallet pre signing decision, agent wallet risk policy, x402 wallet safety first purchase, approval and calldata risk pack.","tags":["ai","llm","gpt-5.5","chat","openai-compatible","x402","base-usdc","x402-chat","openai-compatible-chat","pay-per-request","agent-tool","summarize","summarization","tldr","translate","translation"],"examples":["Decide whether this EIP-712 signing request is safe.","Generate a prepay safety checklist for an agent wallet."],"inputModes":["application/json"],"outputModes":["application/json"],"price":"$0.018","payment":{"protocol":"x402","network":"eip155:8453","asset":"USDC","payTo":"0x1f0130669ca6fd02e025a984cc038f139df19a2f"},"endpoint":{"method":"POST","path":"/v1/tools/wallet-signing-safety-pack","url":"https://gpt55.558686.xyz/v1/tools/wallet-signing-safety-pack"},"livePrices":"https://gpt55.558686.xyz/x402/live-prices.json"},{"id":"gpt55-x402-mcp-integration-kit","name":"x402 MCP Integration Kit","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. Price: $0.006 USDC per request via x402 on Base. No upstream model call. Buyer search phrases: x402 MCP integration kit, MCP paid API config, Claude MCP x402 setup, x402 buyer onboarding, x402 client integration, agent paid API setup.","tags":["ai","llm","gpt-5.5","chat","openai-compatible","x402","base-usdc","x402-chat","openai-compatible-chat","pay-per-request","agent-tool","summarize","summarization","tldr","translate","translation"],"examples":["Generate MCP client config for a paid x402 tool.","Create Claude/Cline/Cursor install snippets."],"inputModes":["application/json"],"outputModes":["application/json"],"price":"$0.006","payment":{"protocol":"x402","network":"eip155:8453","asset":"USDC","payTo":"0x1f0130669ca6fd02e025a984cc038f139df19a2f"},"endpoint":{"method":"POST","path":"/v1/tools/x402-mcp-integration-kit","url":"https://gpt55.558686.xyz/v1/tools/x402-mcp-integration-kit"},"livePrices":"https://gpt55.558686.xyz/x402/live-prices.json"}],"payment":{"schemes":["x402"],"accepts":[{"scheme":"exact","x402Version":2,"network":"eip155:8453","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","payTo":"0x1f0130669ca6fd02e025a984cc038f139df19a2f","facilitator":"provider-pool","currency":"USDC","pricing":{"gpt55-chat-completions":0.00293,"gpt55-translate":0.00293,"gpt55-x402-buyer-shortlist":0.005,"gpt55-wallet-signing-safety-pack":0.018,"gpt55-x402-mcp-integration-kit":0.006}}],"x402":{"network":"eip155:8453","asset":"USDC","payTo":"0x1f0130669ca6fd02e025a984cc038f139df19a2f","facilitator":"provider-pool","discoveryUrl":"https://gpt55.558686.xyz/.well-known/x402"}},"x402":{"scheme":"exact","schemes":["exact"],"network":"eip155:8453","amount_usdc":0.00293,"amount_atomic":"2930","price":"$0.00293","tool_price":"$0.002","pay_to":"0x1f0130669ca6fd02e025a984cc038f139df19a2f","facilitator":"provider-pool","facilitatorPool":[{"id":"dexter","url":"https://x402.dexter.cash","status":"frozen_settlement","active":false,"networks":["eip155:8453","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"],"observedAt":"2026-07-19T16:04:32.063Z"},{"id":"fluxa","url":"https://facilitator.fluxapay.xyz","status":"frozen_settlement","active":false,"networks":["eip155:8453"],"observedAt":"2026-07-19T16:04:32.063Z"},{"id":"mogami","url":"https://v2.facilitator.mogami.tech","status":"frozen_unreachable","active":false,"networks":["eip155:8453"],"observedAt":"2026-09-18T08:31:22.080Z"},{"id":"primer","url":"https://x402.primer.systems","status":"frozen_unreachable","active":false,"networks":["eip155:8453"],"observedAt":"2026-09-18T08:31:22.080Z"},{"id":"xpay","url":"https://facilitator.xpay.sh","status":"enabled","active":true,"networks":["eip155:8453"],"observedAt":"2026-09-18T08:36:32.152Z"},{"id":"payai","url":"https://facilitator.payai.network","status":"frozen_quota","active":false,"networks":["eip155:8453","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"],"observedAt":"2026-09-18T08:36:32.152Z"},{"id":"kobaru","url":"https://gateway.kobaru.io","status":"frozen_unreachable","active":false,"networks":["eip155:8453","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"],"observedAt":"2026-09-18T08:31:22.080Z"},{"id":"cdp","url":"https://api.cdp.coinbase.com/platform/v2/x402","status":"frozen_unreachable","active":false,"networks":["eip155:8453","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"],"observedAt":"2026-08-29T17:17:22.202Z"},{"id":"solvador","url":"https://api.solvador.com","status":"disabled","active":false,"networks":[]}],"fallbackFacilitators":["https://facilitator.xpay.sh"],"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"},"endpoints":{"chat_completions":"https://gpt55.558686.xyz/v1/chat/completions","standard_chat_completions":"https://gpt55.558686.xyz/v1/chat/completions/standard","x402_ping":"https://gpt55.558686.xyz/v1/x402-ping","integrations":"https://gpt55.558686.xyz/integrations","integrations_json":"https://gpt55.558686.xyz/integrations.json","openapi":"https://gpt55.558686.xyz/openapi.json","x402_discovery":"https://gpt55.558686.xyz/.well-known/x402","agents402":"https://gpt55.558686.xyz/.well-known/agents402.json","tools_json":"https://gpt55.558686.xyz/tools.json","ai_catalog":"https://gpt55.558686.xyz/.well-known/ai-catalog.json","service_hub":"https://gpt55.558686.xyz/x402/service","service_json":"https://gpt55.558686.xyz/x402/service.json"},"rateLimit":{"rpm":120}}