# Services from x402-key.558686.xyz on Zero

> x402-key.558686.xyz serves 12 paid API services for AI agents, indexed by Zero. Each is callable per call with payment handled by Zero.

Canonical page: https://www.zero.xyz/host/x402-key.558686.xyz
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/x402-key.558686.xyz/health.json

## Services

- [x402 API Key + URL Pack (50-unit Codex Pack)](https://www.zero.xyz/c/x402-api-key-url-pack-50-unit-codex-pack-a7347ba3/llms.txt): $5.5556/call via x402. Purchases a small OpenAI-compatible API key and base URL quota pack (~$1 USD quota) via x402 micropayment, returning a ready-to-use API key, base URL, and endpoint URLs for chat completions and models.
- [x402 API Key + URL Pack (10-unit quota)](https://www.zero.xyz/c/x402-api-key-url-pack-10-unit-quota-0fc65a20/llms.txt): $1.11112/call via x402. Purchases a small OpenAI-compatible API key + base URL quota pack (approx. $1 USD quota) via x402 micropayment, returning a usable API key, base URL, and endpoint URLs for chat completions and models.
- [x402 API Key + URL Packs (api-codex-key-pack-100)](https://www.zero.xyz/c/x402-api-key-url-packs-api-codex-key-pack-100-1ff3aacd/llms.txt): $11.1112/call via x402. Purchases an OpenAI-compatible API key and base URL quota pack (~$1 USD quota) via x402 micropayment, returning the key, base URL, and endpoints for chat completions and model listing.
- [x402 API Key + URL Packs (Codex Key Pack 10)](https://www.zero.xyz/c/x402-api-key-url-packs-codex-key-pack-10-db1d7003/llms.txt): $1.11112/call via x402. Purchases a small OpenAI-compatible API key and base URL quota pack (~$1 USD quota) via x402 micropayment, returning an API key, base URL, and endpoint URLs for use with OpenAI-compatible clients.
- [x402 API Key + URL Pack (Codex 100 — $11 USDC)](https://www.zero.xyz/c/x402-api-key-url-pack-codex-100-11-usdc-50503e80/llms.txt): $11.1112/call via x402. Purchases a $1 USD quota OpenAI-compatible API key pack via x402 micropayment, returning a base URL, API key, and endpoint URLs for GPT-compatible LLM access.
- [x402 API Key + URL Packs – Codex Key Pack 50](https://www.zero.xyz/c/x402-api-key-url-packs-codex-key-pack-50-07cc3444/llms.txt): $5.5556/call via x402. 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.
- [x402 API Key + URL Pack (1000-unit, $1 Quota)](https://www.zero.xyz/c/x402-api-key-url-pack-1000-unit-1-quota-2034bf3d/llms.txt): $111.112/call via x402. Purchases a small OpenAI-compatible API key and base URL quota pack (~$1 USD) via x402 micropayment, returning a ready-to-use API key, base URL, and chat completions endpoint.
- [x402 API Key + URL Pack (sub2api-codex-key-pack-500)](https://www.zero.xyz/c/x402-api-key-url-pack-sub2api-codex-key-pack-500-5ea3d90f/llms.txt): $55.556/call via x402. 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.
- [x402 API Key + URL Readiness Check](https://www.zero.xyz/c/x402-api-key-url-readiness-check-d895cb01/llms.txt): $0.002/call via x402. Returns OpenAI-compatible base URL, supported models, request shape, and next-pack contract details for an x402 API key quota pack without exposing a secret key.
- [x402 API Key + URL Packs — Codex Key Pack 500](https://www.zero.xyz/c/x402-api-key-url-packs-codex-key-pack-500-c7e986c9/llms.txt): $55.556/call via x402. Purchase an OpenAI-compatible API key and base URL quota pack (~$1 USD quota) via x402 micropayment, receiving endpoint URLs and a masked API key for immediate use.
- [x402 API Key + URL Packs – Codex Key Pack 1000](https://www.zero.xyz/c/x402-api-key-url-packs-codex-key-pack-1000-2c8a0810/llms.txt): $111.112/call via x402. Purchase a paid OpenAI-compatible API key and base URL quota pack (~$1 USD quota) via x402 micropayment, returning the key, endpoint URLs, and receipt evidence.
- [x402 API Key + URL Pack Purchase (api-codex-key-pack-1)](https://www.zero.xyz/c/x402-api-key-url-pack-purchase-api-codex-key-pack-1-2b1e5619/llms.txt): $0.12/call via x402. Purchases a small OpenAI-compatible API key + base URL quota pack via x402 micropayment, returning credentials and endpoint URLs for downstream LLM calls

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

- [Zero catalog index](https://www.zero.xyz/llms.txt)