title = "API Support Overview" template = "spin_main" date = "2023-11-04T00:00:01Z" [extra] url = "https://github.com/fermyon/developer/blob/main/content/spin/v2/api-guides-overview.md"
The following table shows the status of the interfaces Spin provides to applications.
| Host Capabilities/Interfaces | Stability | Cloud |
|---|---|---|
| HTTP Trigger | Stable | Yes |
| Redis Trigger | Stable | No |
| Outbound HTTP | Stable | Yes |
| Outbound Redis | Stable | Yes |
| Configuration Variables | Stable | Yes |
| PostgreSQL | Experimental | Yes |
| MySQL | Experimental | Yes |
| Key-value Storage | Stabilizing | Yes |
| Serverless AI | Experimental | Yes |
| SQLite Storage | Experimental | Yes |
| MQTT Messaging | Experimental | No |
For more information about what is possible in the programming language of your choice, please see our Language Support Overview.