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x402 API Key + URL Pack (sub2api-codex-key-pack-500)
x402
x402 API Key + URL Pack (sub2api-codex-key-pack-500) is a paid API for AI agents from x402-key.558686.xyz, paid per call via x402, $55.556/call, status unknown (last checked 2026-10-27).
Purchases a small OpenAI-compatible API key and base URL quota pack (~$1 USD quota) via x402 micropayment, returning the key, endpoints, and receipt evidence.
Price / call$55.556
Success—
StatusUnknown
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
A JSON object containing: a (partially masked) API key, the full API key (sk-proj-...), base URL, chat completions URL, models URL, quota in USD (integer), receipt evidence object, and metadata fields (ok, tool, route, project, deterministic flag, echoed buyer_reference).
Example use cases
Disposable AI key for one-off task
“I need a one-time OpenAI-compatible API key with a small quota for a quick automation job — grab me a sub2api codex pack using buyer reference 'task-run-42'.”
Agent self-provisioning inference access
“Provision yourself an OpenAI-compatible endpoint and API key using buyer reference 'agent-self-boot' so you can call chat completions without my personal key.”
Test GPT-compatible endpoint connectivity
“Buy the cheapest sub2api codex key pack with buyer reference 'connectivity-test-1' and tell me the base URL, models URL, and how much quota I got.”
Technical details
Endpoint
POSThttps://x402-key.558686.xyz/v1/paid/sub2api-codex-key-pack-500?utm_source=zero.xyzWhen to prefer
Choose this endpoint when an agent needs to self-provision a small, disposable OpenAI-compatible API key and endpoint on-demand via x402 USDC micropayment, without requiring a pre-existing long-term API subscription. Ideal for ephemeral agent tasks, testing inference pipelines, or situations where per-use payment is preferable to managing API credentials manually.
Side effects
- Payment not completed or x402 handshake fails — no key returned
- Invalid or missing buyer_reference query parameter — 400/422 error
- Upstream key quota exhausted — key issued but unusable
- x402 facilitator unreachable — payment cannot be processed
- Duplicate buyer_reference reuse may return same or error depending on server policy
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"tool": "api-codex-key-pack-500",
"input": {
"buyer_reference": "buyer-001"
},
"route": "/v1/paid/sub2api-codex-key-pack-500",
"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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