AI agents that make and answer real phone calls, designed in a drag-and-drop builder
Stage
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Founded
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Based in
US
IN
Pricing model
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Pricing
Free: $0 forever with your own API keys. Pro: $20 per month with $20 of hosted credit a month (or $240 at once on yearly, save up to 17%). Team: $18 per seat, monthly, 2 to 5 people, with $18 of shared credit per seat monthly. Compute costs about $6 per GB a month from credit, charged by the second.
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Key features
Real files, real commands, web access, and browser beside the chat
Memory written to disk as plain text you can edit and delete
Auto mode with safe judgment on your own model
Delegate work to helper agents sharing a task list
Chat apps: Telegram, Discord and Slack integration
Support for MCP servers, plugins and IDE integration
Cloud tasks that keep running after you close the app
Services that stay online with scheduler, webhook and watcher
Web apps with their own live link at letronna.si
Drag-and-drop visual conversation builder
In-browser testing before real calls
Make and answer phone calls
Chat on websites and WhatsApp
Multi-language support
CRM and calendar integrations
Full call transcripts and recordings
Mid-call system actions
Document sourcing for agent responses
Outbound call campaigns
What makes it different
Runs locally with your own keys; nothing leaves your machine unless you connect a hosted model
Starts in 7.65 ms with 84% on Harness-Bench
Plain text memory files you can edit, not a black box
Works with any model: OpenAI-compatible, Anthropic, Ollama, llama.cpp or hosted
Pay only for hosted models and cloud compute, not per seat
Test conversations in browser before connecting a real phone number
Go live without a sales conversation or contract negotiation
Agents can read and write to connected systems during active calls
Pay only for minutes your agents actually use
26 integrated systems including Salesforce, HubSpot and Google Calendar
Letronna®
Woise