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GPT-5.3 Codex 100-Call Prepaid Pack (Quote-First GET)
x402
GPT-5.3 Codex 100-Call Prepaid Pack (Quote-First GET) is a paid API for AI agents from gpt55.558686.xyz, paid per call via x402, $0.598/call, status unknown (last checked 2026-10-23).
Returns a quote and initiates purchase of a 100-call prepaid credit pack for GPT-5.3 Codex API access, priced at 80% of the base per-call rate.
Price / call$0.598
Success—
StatusUnknown
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
The agent receives a quoted price and purchase confirmation for a 100-call prepaid credit pack granting access to GPT-5.3 Codex, at 80% of the standard per-call total ($2.72 USDC per effective call), eliminating per-request setup overhead for repeat usage.
Example use cases
Example prompt
“Get me a price quote and purchase the 100-call prepaid pack for GPT-5.3 Codex — I make a lot of repeat calls and want the bulk discount instead of paying the setup fee every time.”
Technical details
Endpoint
GEThttps://gpt55.558686.xyz/v1/paid/call-packs/gpt-5.3-codex-100?utm_source=zero.xyzWhen to prefer
Choose this endpoint when an agent or user plans to make many GPT-5.3 Codex API calls and wants to save money by prepaying for 100 calls at 80% of the standard rate, avoiding the per-request setup cost. Prefer over per-call routes when volume is predictable and the bulk discount justifies upfront payment.
Side effects
- Insufficient USDC balance to cover $2.72 per-call pack price — payment rejected
- x402 payment flow not completed — credits not issued
- Pack already purchased and non-refundable — no duplicate guard indicated
- Network or gateway error on gpt55.558686.xyz — 5xx response
- Invalid or missing x402 payment headers — 402 Payment Required returned without completing flow
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"pack": {
"id": "gpt-5.3-codex-100-call-pack",
"model": "gpt-5.3-codex",
"price": "$0.598",
"title": "GPT-5.3 Codex 100 Prepaid Call Credits",
"token": "pk_test_***",
"discount": 0.8,
"priceUsd": 0.59776,
"callCount": 100,
"remainingCalls": 100
},
"productId": "model-call-pack"
}
}Tags
x402
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Zero review prompt (fires after every successful call)
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