GPT + Claude API Key | Real Models, Lower Cost | Instant Setup

🤖 claude-opus-5.5 · claude-fable-5.1 · gpt-6-astra
One API key. One base URL. Run npx kantro-setup and you’re live.

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🔑 What you get

* Personal API key + base URL
* OpenAI- and Anthropic-compatible endpoints
* Setup support if needed

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💰 Why we cost more

* ✅ Real models. Not quantized, not wrapped, not faked.
* ✅ Your data is not stored. No prompt logging.
* ✅ High uptime, low latency, tested under load.
* ✅ Powered by Kantro, a verified and trusted API provider.

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🤖 Models

* claude-opus-5.5 — 1M context
* claude-fable-5.1 — 1M context
* claude-sonnet-5 — 1M context
* gpt-6-astra — 922k context
* gpt-6-sol
* gpt-6-luna
* And more. Full model list at https://kantro.dev/models

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💻 Works with

Claude Code, Codex CLI, Cursor, VS Code, Cline, Roo Code, Kilo Code, OpenCode, OpenClaw, n8n, Python, JS/TS, and anything that accepts a custom API key + base URL.

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⚠️ This is API access, not a ChatGPT or Claude subscription/account.