Dograh

Dograh is an open source, self-hosted voice agent platform, positioned as an open source alternative to commercial voice agent platforms such as Vapi and Retell. It provides a visual workflow editor to design the call process, supports built-in models, speech recognition, large models and speech synthesis can be replaced on demand, and can also be driven by MCP. You can deploy it on your own server or use the official cloud.

For teams that do telephone customer service, outbound calls, and reservations, the commercial voice platform is billed by the minute, and the data has to go through a third party, which is a huge cost and compliance issue. Dograh returns this control to the user. It topped the daily and weekly rankings on Product Hunt, and was also selected for the NVIDIA Inception program. It is suitable for development teams with certain engineering capabilities. It will save a lot of trouble for non-technical users to directly use the cloud version.