GPT55 Model Gateway

https://gpt55.558686.xyz/a2a

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.

17
reliability

Reliability & health

Uptime and response time from our own unpaid probes, plus the reliability score built from them.

7 days 30 days

Uptime

0.0% avg
0% 50% 100% Fri 7 PMSun 7 PMMon 7 PMWed 8 PM

Response time

0ms 50ms 100ms Fri 7 PMSun 7 PMMon 7 PMWed 8 PM
Data table
Reliability history per time bucket over the last 7 days (hourly).
Bucket Uptime Probes Response time
8/14/2026, 7:00:00 PM 0% 1 —
8/15/2026, 7:00:00 PM 0% 1 —
8/16/2026, 7:00:00 PM 0% 1 —
8/17/2026, 7:00:00 PM 0% 1 —
8/18/2026, 8:00:00 PM 0% 1 —
8/19/2026, 8:00:00 PM 0% 1 —
17
Composite reliability — the weighted average of the dimensions below, on a 0–100 scale.
Availability
0

How often it was reachable when we probed it (weight 35%).

Latency
not yet measured

How quickly it answers when it is up — fast scores high (weight 20%).

Security
100

Whether it serves over working TLS / https (weight 15%).

Transparency
30

Whether the operator disclosed what it does — description, schema, identity (weight 15%).

Activity
not yet measured

Observed on-chain payments to this endpoint's wallet — transactions, volume, and distinct paying wallets over the last month (weight 15%; not yet measured when we have not seen its wallet settle).

Confidence 44% — how much probe evidence backs this score. A thin history is flagged, not hidden.

See the scoring methodology for exactly how each number is computed.

Payment

Currencies
—
Networks
—
Facilitator
unknown
SDK
unknown

Operator

Company
inferred — unknown
Jurisdiction
—
Registrar
—
Domain registered
—
Hosting network
—
Hosting country
—

Operator context is derived from public RDAP/TLS records and unverified. Company and country are only available for endpoints that publish them (an OV/EV TLS certificate or a non-redacted domain record); most endpoints are CDN-fronted and disclose neither.

aillmgpt-5.5chatopenai-compatiblex402base-usdcx402-chatopenai-compatible-chatpay-per-requestagent-toolsummarizesummarizationtldrtranslatetranslationrewriteeditinggrammarquestion-answeringqacontext-qatext-processingcode-reviewdebuggingjsonurl-metadataurl-texturl-linksx402-auditapi-auditbuyer-readinessopenapi-audithttp-statusredirect-checkweb-metadataweb-scrapinglink-extractioncrawlertext-extractiondata-extractionjson-validatevalidationhashbase64jwttimestampurl-parsequerystringregexslugifycase-convertuuidtext-statsline-diffstructured-outputmicrotaskrewritingcoding-help