GPT-5.6 Luna Half-Price Plus Subscription (x402)

x402

GPT-5.6 Luna Half-Price Plus Subscription (x402) is a paid API for AI agents from gpt55.558686.xyz, paid per call via x402, $10/call, status down (last checked 2026-10-13).

Purchases or activates a half-price GPT Plus-equivalent weekly subscription via x402 USDC payment on Base, returning a confirmation and generated text summary.

Price / call$10

Seller volume →—

Success—

StatusDown

How this service works

GPT-5.6 Luna API Base USDC and OpenAI-compatible x402 chat: one request for $0.00293, paid by browser wallet or a quote-first agent fallback.

Output

Returns a JSON object with an 'ok' boolean, a 'tool' field identifying the subscription action ('gpt55PlusHalfPriceSubscription'), and a 'summary' field containing a generated text confirmation of the subscription activation.

Example use cases

Discounted weekly AI plan for agent

“Activate a half-price weekly GPT subscription for my agent account ID acc_9901 and buyer ID buyer_7731, using the official Plus monthly rate of $20 and requesting the discounted weekly equivalent.”

Budget GPT access for small startup

“My startup wants cheap GPT-5.6 Luna access — can you sign us up for the half-price subscription? Our account is acc_startup42, buyer ID is buyer_luna99, official monthly is $20.”

Recurring Luna subscription renewal

“Renew our half-price GPT Luna weekly plan for account acc_renew55, buyer buyer_555, official Plus monthly cost is $20, and we want the weekly discounted tier again.”

Technical details

Endpoint

POSThttps://gpt55.558686.xyz/v1/tools/gpt55-plus-half-price-subscription?utm_source=zero.xyz

When to prefer

Choose this endpoint when you want to programmatically purchase a discounted weekly GPT-equivalent subscription using USDC on Base via x402, specifically for accounts tied to the GPT-5.6 Luna proxy service. Prefer this over direct OpenAI billing when seeking reduced-cost access or when operating in a crypto-native payment environment.

Side effects

Payment failure if USDC wallet balance is insufficient for the $10 per call price
Invalid or missing buyerId/accountId causing rejection
Subscription already active for account leading to duplicate error
x402 payment protocol negotiation failure with agent fallback required
Malformed requestedWeeklyValueUsd causing validation error

Input

Schema · Request body

Field	Type	Description
buyerId	string
buyer_id	string
accountId	string
requestId	string
account_id	string
request_id	string
officialPlusMonthlyUsd	number
weeklyOfficialValueUsd	number
requestedWeeklyValueUsd	number
official_plus_monthly_usd	number
weekly_official_value_usd	number
requested_weekly_value_usd	number

Output

Schema · Response

{
  "type": "json",
  "example": {
    "ok": true,
    "tool": "gpt55PlusHalfPriceSubscription",
    "summary": "Generated text."
  }
}

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