SMS Gateway to Web App Integration

I need an SMS forwarding solution from an SMS gateway to a web app. The SMS will be plain text, and upon receiving, they should be displayed on a dashboard.

Requirements:
- Create a custom SMS API
- Integrate SMS from an SMS gateway.
- Display incoming SMS on a web app dashboard.

Ideal Skills:
- Experience with API creation
- Experience with SMS gateways.
- Web app development proficiency.
- Familiarity with dashboard UI/UX design.