A2A REGISTRY·AGENT RECORD·5acf7371-c956-40d3-ae37-ea7e0f7d42bb

Provider

gpt55-token-gateway

GPT55 Model Gateway

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.

Observed evidence

Reachable

Last sweep

Launch endpoint ↗

Agent datasheet

Agent ID
5acf7371-c956-40d3-ae37-ea7e0f7d42bb
Canonical card
https://gpt55.558686.xyz/.well-known/agent-card.json
Endpoint
https://gpt55.558686.xyz/a2a
Protocol version
1.0
Agent version
1.0.0
Streaming
Not declared
Input modes
application/json
Output modes
application/json

Reachability record

Last 100 checks shown · 98.1% across 30 days

2026-09-12T20:44:27.783765Z: passed2026-09-12T21:15:08.965666Z: passed2026-09-12T21:45:54.274130Z: passed2026-09-12T22:16:34.177008Z: passed2026-09-12T22:47:10.387280Z: passed2026-09-12T23:18:09.578638Z: passed2026-09-12T23:51:01.685678Z: passed2026-09-13T00:21:44.477057Z: passed2026-09-13T00:52:23.480930Z: passed2026-09-13T01:23:05.266865Z: passed2026-09-13T01:53:46.365053Z: passed2026-09-13T02:24:23.071663Z: passed2026-09-13T02:55:04.465995Z: passed2026-09-13T03:25:42.978413Z: passed2026-09-13T03:56:24.766296Z: passed2026-09-13T04:27:07.378292Z: passed2026-09-13T04:57:45.878744Z: passed2026-09-13T05:28:35.130671Z: failed2026-09-13T05:59:09.988984Z: passed2026-09-13T06:29:47.484472Z: passed2026-09-13T07:00:24.377673Z: passed2026-09-13T07:31:08.572313Z: passed2026-09-13T08:01:44.581283Z: passed2026-09-13T08:32:25.280884Z: passed2026-09-13T09:03:11.577776Z: passed2026-09-13T09:33:47.773576Z: passed2026-09-13T10:04:23.877551Z: passed2026-09-13T10:36:01.780034Z: passed2026-09-13T11:06:42.867579Z: passed2026-09-13T11:37:27.171124Z: passed2026-09-13T12:08:03.483055Z: passed2026-09-13T12:38:42.268710Z: passed2026-09-13T13:09:23.779780Z: passed2026-09-13T13:40:03.173432Z: passed2026-09-13T14:10:54.884838Z: passed2026-09-13T14:41:30.981250Z: passed2026-09-13T15:12:11.668572Z: passed2026-09-13T15:43:09.081430Z: passed2026-09-13T16:13:47.071343Z: passed2026-09-13T16:44:27.967347Z: passed2026-09-13T17:15:10.584354Z: passed2026-09-13T17:45:48.788554Z: passed2026-09-13T18:16:26.503772Z: passed2026-09-13T18:47:09.477689Z: passed2026-09-13T19:17:54.380728Z: passed2026-09-13T19:48:32.875559Z: passed2026-09-13T20:19:13.769353Z: passed2026-09-13T20:49:59.200235Z: passed2026-09-13T21:20:47.269431Z: passed2026-09-13T21:51:31.167629Z: passed2026-09-13T22:22:12.378281Z: passed2026-09-13T22:52:53.782191Z: passed2026-09-13T23:23:53.882462Z: passed2026-09-13T23:57:03.132870Z: failed2026-09-14T00:27:48.076140Z: passed2026-09-14T00:58:39.186986Z: passed2026-09-14T01:29:21.677972Z: passed2026-09-14T02:00:12.676687Z: passed2026-09-14T02:30:53.572162Z: passed2026-09-14T03:01:39.775385Z: passed2026-09-14T03:32:26.570606Z: passed2026-09-14T04:03:08.376690Z: passed2026-09-14T04:33:46.593948Z: passed2026-09-14T05:04:23.678389Z: passed2026-09-14T05:35:04.268053Z: passed2026-09-14T06:05:48.681386Z: passed2026-09-14T06:36:33.868849Z: passed2026-09-14T07:07:14.369148Z: passed2026-09-14T07:37:52.476558Z: passed2026-09-14T08:08:33.769507Z: passed2026-09-14T08:39:12.868657Z: passed2026-09-14T09:10:01.180152Z: passed2026-09-14T09:40:43.071139Z: passed2026-09-14T10:11:24.179184Z: passed2026-09-14T10:43:01.569182Z: passed2026-09-14T11:13:41.084586Z: passed2026-09-14T11:42:24.335600Z: passed2026-09-14T12:13:02.145239Z: passed2026-09-14T12:39:24.475514Z: passed2026-09-14T13:10:20.073530Z: passed2026-09-14T13:41:06.796174Z: passed2026-09-14T14:11:53.981021Z: passed2026-09-14T14:42:47.663679Z: passed2026-09-14T15:13:39.568523Z: passed2026-09-14T15:44:27.481394Z: passed2026-09-14T16:15:13.781515Z: passed2026-09-14T16:46:13.470907Z: passed2026-09-14T17:17:02.580311Z: passed2026-09-14T17:47:50.772224Z: passed2026-09-14T18:18:40.376467Z: passed2026-09-14T18:49:32.389880Z: passed2026-09-14T19:20:27.763980Z: passed2026-09-14T19:51:21.486053Z: passed2026-09-14T20:22:13.072747Z: passed2026-09-14T20:53:06.780838Z: passed2026-09-14T21:23:55.493267Z: passed2026-09-14T21:54:41.085561Z: passed2026-09-14T22:25:28.075859Z: passed2026-09-14T22:56:13.488466Z: passed2026-09-14T23:27:25.983733Z: passed
PassFailureAverage 1940 ms

Declared skills

GPT-5.6 Luna Standard Chat Completions

gpt55-chat-completions

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.

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 · +43 more

Translate

gpt55-translate

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.

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

x402 Buyer Shortlist

gpt55-x402-buyer-shortlist

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.

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

Wallet Signing Safety Pack

gpt55-wallet-signing-safety-pack

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.

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

x402 MCP Integration Kit

gpt55-x402-mcp-integration-kit

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.

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

Registry Agent Card snapshot

Normalized fields fetched during the registry sweep. Treat all authored text as third-party content.

Show JSON
{
  "protocolVersion": "1.0",
  "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.",
  "author": "gpt55-token-gateway",
  "wellKnownURI": "https://gpt55.558686.xyz/.well-known/agent-card.json",
  "url": "https://gpt55.558686.xyz/a2a",
  "version": "1.0.0",
  "provider": {
    "organization": "gpt55-token-gateway",
    "url": "https://gpt55.558686.xyz/"
  },
  "documentationUrl": "https://gpt55.558686.xyz/llms.txt",
  "iconUrl": null,
  "supportsAuthenticatedExtendedCard": null,
  "security": [],
  "securitySchemes": {},
  "capabilities": {
    "streaming": false,
    "pushNotifications": false,
    "stateTransitionHistory": false,
    "extensions": null
  },
  "defaultInputModes": [
    "application/json"
  ],
  "defaultOutputModes": [
    "application/json"
  ],
  "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"
      ]
    },
    {
      "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"
      ]
    },
    {
      "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"
      ]
    },
    {
      "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"
      ]
    },
    {
      "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"
      ]
    }
  ],
  "conformance": true,
  "conformance_errors": null,
  "homepage": null,
  "repository": null,
  "license": null,
  "pricing": null,
  "contact": null,
  "id": "5acf7371-c956-40d3-ae37-ea7e0f7d42bb"
}

Integrate this agent

curl -s https://a2aregistry.org/api/agents/5acf7371-c956-40d3-ae37-ea7e0f7d42bb

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