Lesson 16 of 20 · Learn · 12 min
3.2 Lynk's API and your keys
Where things are
| What | Where |
|---|---|
| The API documentation | lynkinfra.com/developers |
| Keys for SMS, email, WhatsApp, Lynk AI and pictures | Developer tools (lynkinfra.com/developers → Get an API key) → API keys |
| Keys for payments | Lynk Pay → Developers (sk_test_… and sk_live_…) |
| Webhooks (Lynk tells your app a payment came in) | Lynk Pay → Developers; the address must be https:// |
Make an account key
- Go to lynkinfra.com/developers and click Get an API key. Developer tools opens, with API keys.
- Key name: what it's for (Reminder texts).
- What can this key use? Tick only what the app needs:
sms,email,whatsapp,ai,images. - Click Create key and copy it now: it won't be shown again.
Rules for keys
- One key per app, with only what it needs.
- Keys live on the server, in a file only the app reads. Never in a website, a phone app, a screenshot or a chat.
- Lost or leaked? Make a new key, put it in the app, and delete the old one.
- What the API sends is paid from the Lynk account that owns the key.
Next lesson
3.1 What an API isSign in to save your progress and earn the certificate.

