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x402 API Key + URL Packs – Codex Key Pack 50
x402
x402 API Key + URL Packs – Codex Key Pack 50 is a paid API for AI agents from x402-key.558686.xyz, paid per call via x402, $5.5556/call, status down (last checked 2026-09-15).
Purchase a prepaid OpenAI-compatible API key and base URL quota pack (~$1 USD quota) via x402 micropayment, including optional GPT-5.6 Soul model access.
Price / call$5.5556
Success—
StatusDown
How this service works
Buy a low-cost readiness check first, then buy a small OpenAI-compatible URL + API key quota pack through x402, including GPT-5.6 Soul access when your upstream key allows it. The readiness check returns URL, model, request-shape, and next-pack contract details without exposing a key.
Output
Returns a JSON object containing: a masked and unmasked API key (sk-proj-...), base URL (https://sub2api.558686.xyz/v1), chat completions URL, models URL, quota in USD (integer), receipt evidence, and metadata about the tool/route/project.
Example use cases
Disposable API key for one-off task
“I need a fresh OpenAI-compatible API key with a dollar of quota for a one-off automation — grab me the Codex Key Pack 50 with buyer reference 'project-alpha-run1'.”
Agent bootstrapping its own AI access
“My agent needs to provision its own API key and endpoint URL to make chat completions calls — purchase the x402 Codex Key Pack 50 using buyer reference 'agent-self-provision-42'.”
Testing GPT-compatible proxy endpoint
“I want to test a new OpenAI-compatible proxy — buy the Codex Key Pack 50 pack with buyer reference 'qa-test-007' and give me the base URL, API key, and chat completions URL I get back.”
Technical details
Endpoint
POSThttps://x402-key.558686.xyz/v1/paid/sub2api-codex-key-pack-50When to prefer
Choose this endpoint when you need a small, prepaid OpenAI-compatible API key and base URL provisioned instantly via a single x402 micropayment, especially for disposable or per-task AI API access without a long-term subscription. Prefer over manual key management when operating in an automated agent context that can handle x402 payment flows.
Side effects
- Payment not received or insufficient USDC — x402 payment challenge returned instead of key
- Invalid or missing buyer_reference query parameter — request rejected
- Upstream quota exhausted — key issued but with zero effective quota
- GPT-5.6 Soul model unavailable if upstream key does not permit it
- Network timeout or provider outage — no key returned
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"tool": "api-codex-key-pack-50",
"input": {
"buyer_reference": "buyer-001"
},
"route": "/v1/paid/sub2api-codex-key-pack-50",
"result": {
"apiKey": "sk-proj-...masked",
"baseUrl": "https://sub2api.558686.xyz/v1",
"quotaUsd": 1,
"modelsUrl": "https://sub2api.558686.xyz/v1/models",
"apiKeyMasked": "sk-proj-...masked",
"receiptEvidence": {},
"chatCompletionsUrl": "https://sub2api.558686.xyz/v1/chat/completions"
},
"project": "x402-key-url-tools",
"deterministic": true
}
}Tags
x402
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