CosVoice
Phone and email infrastructure for assistants through MCP, REST and webhooks.
Sources and review
Checked against public documentation on . Suitability guidance is our editorial judgment; this is not a performance benchmark or an endorsement.
Developers evaluating phone-call workflows connected to an assistant.
You need dependable two-way SMS now or independently verified calling performance.
About CosVoice
CosVoice documents phone lines and email access for AI assistants, with MCP, REST and webhook interfaces. Its public OpenAPI specification describes call initiation and outcome retrieval. Paid plans include limited call minutes with separate overage charges. Current documentation warns outbound SMS may be filtered while carrier registration is pending; dependable two-way texting should not be assumed. No call, text, mailbox or account was operated, and the scripted demo is not a runtime test.
CosVoice vs. the alternatives
All 33 alternatives →| Record | Stars | Pricing | ||
|---|---|---|---|---|
| CosVoicethis listing | — | — | — | Paid product |
| Pipecat | 16k | Python | BSD-2-Clause | Open source |
| LiveKit Agents | 14k | Python | Apache-2.0 | Open source |
| xiaozhi-esp32-server | 11k | JavaScript | MIT | Open source |
| ten-vad | 2.3k | C | — | Open source |
| bailing | 1.8k | Python | MIT | Open source |
