AI voice agents and voice cloning platform for phone calls
The transaction layer for AI agents
Stage
Not given
MVP
Founded
Not given
Not given
Based in
Not given
US
Pricing model
Freemium
Contact for pricing
Pricing
Free plan includes 30 phone-call minutes monthly that renew. Paid plans: Starter, Growth, Scale, Business and Enterprise with usage-based pricing. Phone-call minutes and number rental billed separately from credits. Web calls included. Free plan has 30 credits, up to 2 phone numbers, up to 2 active
Per-execution pricing: one fee per execution that returns proof, charged only when proof comes back. Failed or cancelled runs cost nothing. Planning and approvals are free.
Key features
Instant voice cloning from 20 seconds of speech
600+ realistic AI voices in 30+ languages
Visual no-code flow builder for conversation design
Knowledge base grounding for accurate answers
Inbound and outbound calling at scale
API and no-code access
Bulk outbound campaigns with analytics
Phone numbers in 60 seconds
Low-latency voice with interruption handling
Call analytics, transcripts and recording
Boundary approval system for controlled execution
Checkpoint-based resumable execution
Verifiable proof of completion
Composable proof for multi-agent workflows
Per-execution pricing model
Integration with multiple agent frameworks
What makes it different
One integrated platform for the complete voice AI call stack without stitching together multiple tools
Free plan with renewing monthly minutes and no credit card required
Built-in support for Indian languages and regional accents
120ms median voice latency for natural conversations
Pay only for verified results, not for attempts or planning
Human-approved boundaries ensure agent actions stay within limits
Interruptible checkpoints allow pausing and resuming executions
Proof is built into results for auditability and composability
HeyRik
Kairos