| Supabase | Database / backend infrastructure | Account, configuration, and application data |
| Stripe | Billing and payments | Billing contact information, tokenized payment data |
| Twilio | Telephony numbers, voice and SMS carrier, number verification | Phone numbers, call metadata, SMS/text message content, number verification details |
| Telnyx | Telephony numbers, voice and SMS carrier, number verification | Phone numbers, call metadata, SMS/text message content, number verification details |
| DIDWW | Telephony numbers, voice carrier, number verification | Phone numbers, call metadata, number verification details |
| LiveKit | Voice media routing (SFU), SIP dial-out | Real-time call audio; optional recording export to Hail object storage |
| AWS | Email sending (SES), object storage (S3), infrastructure | Email content, optional call recordings, and infrastructure data |
| Deepgram | Speech-to-text for voice calls | Call audio (in transit, for transcription) |
| Cartesia | Text-to-speech for voice calls | Agent text synthesized to audio |
| ElevenLabs | Text-to-speech for voice calls | Agent text synthesized to audio |
| OpenAI | LLM for voice agent reasoning | Call transcript / conversation content |
| Google | LLM for voice agent reasoning (fallback) | Call transcript / conversation content |
| Anthropic | LLM for voice agent reasoning (fallback) | Call transcript / conversation content |
| PostHog | Product analytics (website and console) | Usage/behavioral data, IP address |
| Vercel | Website hosting | Web traffic / request data |
| Resend | Auth/transactional email only (not product email) | Signup/reset email content, recipient address |