AI voice agents and voice cloning platform for phone calls
Agent wiki and visual workspace for Claude Code, Codex and other AI coding agents
Stage
Not given
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Founded
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Based in
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Pricing model
Freemium
Freemium
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
Free: Nimbalyst app and personal wiki. Wiki Teams: $20 per user per month or $200 per user per year (currently free during beta).
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
WYSIWYG markdown editor with AI-assisted editing
Red/green inline diffs for AI changes approval
Visual editors for mockups, diagrams, and drawings
Parallel agent session management
File and session linking
Persistent searchable session history
Pull request review in Developer Mode
MCP server support
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
Agents write the wiki as they work, eliminating manual documentation
Open source and local-first: your data stays on your machine
Built by Evergage founders who scaled to $250M ARR
One unified workspace instead of multiple disconnected tools
HeyRik
Nimbalyst