Migrate
From your current provider.
In an hour or less.
The big four voice-AI providers all use slightly different SDKs. Below are side-by-side migration guides — each with a working codemod, a cost-comparison check, and a port-in checklist for your phone numbers.
From
OpenAI Realtime API → toolkit-voice
5-line diff. 74/77 events. Phone numbers included instead of BYO Twilio.
~75% cheaper effective~10 minutes
From
Vapi → toolkit-voice
Replace platform fees + Twilio + LLM + STT/TTS line-items with one API.
~80% cheaper, simpler bill~30 minutes
From
Bland → toolkit-voice
Bring your call flows. Drop the bring-your-own-Twilio dance.
~60% cheaper~30 minutes
From
Twilio + DIY stack → toolkit-voice
Turn your bespoke STT + LLM + TTS pipeline into one API call.
Engineering hours back~1 hour
On every migration
- Side-by-side code diff: before vs after, line-for-line
- Working codemod (npm package): npx @toolkit-llm/migrate-{provider}
- Phone number port-in: 5-7 business days, we do the LOA paperwork
- Founder Slack channel during migration — answer questions in <30 min
- 30-day rollback guarantee: keep your old provider warm, fall back if anything's off
Don't see your provider? founders@toolkit-llm.com →