OpenRing

OpenRing is a self-hosted, Vapi-compatible platform for AI phone and voice agents that answer and place calls over Twilio, Telnyx, Plivo, Vonage or SIP, using your own provider keys or a free local stack (Whisper, Ollama, Kokoro).

Why it matters

Businesses building AI receptionists or phone agents on hosted platforms pay a per-minute platform fee on top of speech, model and phone costs. OpenRing removes that fee by running the same job on your own machine with a Vapi-compatible API.

Highlights

• Speaks Vapi's assistant JSON, tool calls and webhooks, so the README says a Vapi client can move by changing its base URL, with a one-click account import.
• Runs with npx openring (Node.js 18+); the dashboard opens on localhost and a free local Kokoro voice downloads on first start.
• Each call runs a Pipecat pipeline (speech-to-text, model, voice), and per-turn latency and provider cost are shown in the dashboard.
• Test an assistant from your microphone before attaching a phone number; keys, calls and transcripts stay on your machine with no telemetry, per the README.

Taken from the project's own README, docs or launch page. Claims about speed or accuracy are the maker's unless stated otherwise.

Worth knowing: Very new (version 0.1.6) and small; phone calls still require your own telephony account. Check call-recording consent laws where you operate.

Quick facts

Links

• Repository: https://github.com/elifalanrocha/openring
• Release notes: https://github.com/elifalanrocha/openring/releases
• Docs: https://github.com/elifalanrocha/openring/blob/main/docs/api.md

Related ranking

See how established tools compare in Best Voice & Text-to-Speech. New releases aren't scored until we review them against the rubric.

Checked 2026-11-10 from the tool's own pages. Prices and star counts change, so confirm on the official site. Listing here is not a ranking or an endorsement.