Vapi
Vapi
π‘ Pick it for a flexible, developer-first voice-agent stack with granular control over integrations.
Vapi is an API platform for building voice assistants that can make and receive phone calls. It is designed for developers who...
Pros
- Highly flexible model, voice, and tool integrations
- Good fit for developers building custom call workflows
- Supports inbound and outbound calling with webhooks
Cons
- More engineering work than Callin's packaged experience
- Final pricing depends on several third-party providers
- Requires careful configuration for latency and call reliability
Usage-based, typically from about $0.05/min plus provider costs