Tools you need,
priced for builders.
API keys for Claude and OpenAI Codex. Paid in stables, delivered the moment your payment confirms.
What we ship.
Pick your stack.
Two API key products live today. Same checkout, same wallet, token-metered usage.
Claude API keys
Opus 4.7, Sonnet 4.6, Haiku 4.5. One key works across all three. Around 80% off the official Anthropic rate.
Codex API keys
GPT-5 Codex for code generation, refactoring, and agentic workflows. Around 80% off OpenAI's public rate.
Three steps.
Browse the catalog, choose a pack.
USDT or USDC on Ethereum, BNB Chain, or Base.
Delivery starts the moment your payment confirms.
Quick answers.
These apply to every API key product on the shop. Each product page also has its own FAQ for product-specific questions.
After your transaction confirms on-chain. Usually under a minute. The wallet is watched directly, no manual approval step.
Before you buy
Every key depends on a third-party upstream provider. They may rate-limit, suspend, or revoke any key at any time, and we do not control those events. Dead-on-arrival keys are replaced within 24 hours under the refund policy. Sales are otherwise final. Start with a single key to test the flow before scaling up. Enso is an independent reseller and is not affiliated with Anthropic or OpenAI.