Finnhub key (free)
1. Go to finnhub.io and click "Get free API key".
2. Sign up with your email address and confirm it.
3. Open your Dashboard and copy your API key. The free plan is enough for L.WIN.
4. In L.WIN, open Settings, paste the key into "Finnhub API key" and click Save.
Claude key (pay as you go)
1. Go to platform.claude.com and create an account. This is separate from a Claude.ai chat subscription.
2. Open Billing and add credit, for example $5. You pay only for the analyses you run.
3. Open API Keys, click "Create Key" and copy it right away. It is shown only once.
4. In L.WIN, open Settings, paste the key into "Claude API key" and click Save. You can set a monthly AI budget there to track your spending.
Keep your keys private. Never share them with anyone. If a key leaks, delete it on the provider's site and create a new one.