Wait, you're mixing up two different things here. Ollama doesn't need an API key - it runs locally and has a simple REST endpoint (usually localhost:11434).
For Stacks, you don't need API keys either - just use their testnet RPC endpoints or run a local node.
The real issue is you're overthinking this. Start with:
1. Get Ollama running locally
2. Test basic Stacks.js calls on testnet
3. Have Qwen generate simple smart contract templates
You're trying to solve integration before understanding the individual pieces. Classic developer mistake - I see it all the time.