# A CRM note you can defend · Sources and go deeper



## Sources and go deeper

- [APIs and SDKs](https://www.five9.com/platform/integrations-and-ecosystem/apis-and-sdks). vendor. last checked 2026-10.
- [Agent Desktop](https://www.five9.com/platform/self-service-and-engagement/agent-desktop). vendor. last checked 2026-10.
- confirm. Project size is not on the API page. Minimal coding is their phrase, not an estimate. last checked 2026-10.