Lisn · by Ground State Foundry
An AI that talks to your customers, wherever they are.
Lisn talks and chats with visitors on your website, answers from your own business knowledge, captures the lead, books the appointment, and hands over to a person when it should, in English and Arabic. Phone lines are next. It gets better by talking to other agents, before it talks to your customers.
The most stable state your business can run in.
What Lisn does
More about Lisn →On your website
Visitors talk or type, and Lisn answers in their language. It learns your services, prices, hours, and FAQs from your own website, sticks to them, and says so when it does not know. It drops in with one script tag.
From our embeddable demo agent
On the phone, next
Coming next: inbound and outbound calls on the numbers you already have. The same agent that talks on your website will answer your lines, built on the voice platform we have already run on real telephony.
Coming next, from our production voice platform
Gets it done
Lisn checks availability and books through your booking tool, takes callbacks at the time the customer gives, and sends you the lead with a summary of the conversation. It hands over to a person during working hours, and it does not promise what it should not.
Tool calls during a live call
Practises first
Before it talks to your customers, other agents play them: impatient, confused, switching language mid-sentence. They talk to it through the same stack your customers will, and every failure becomes a fix.
From our simulation suite
How Lisn goes live
Five steps from connecting your channels to an agent that keeps improving on its own.
- 01ConnectPaste groundstatefoundry.com/skill into your coding agent (Claude Code, Cursor and others) and it installs Lisn in minutes. Or we set it up for you.
- 02TeachLisn learns your services, prices, hours, and FAQs from your own website. Add the answers your best people give.
- 03PractiseLisn talks to simulated customers first, and every conversation that goes wrong becomes a fix.
- 04Go liveIt starts answering real visitors and callers, and hands over to a person when it should.
- 05ImproveIt keeps practising against new situations, so it gets better every week.
What Lisn is built on
How Lisn works →Production voice-agent platform
A multi-tenant platform that runs AI phone agents over real telephony, on the phone numbers a business already has.
- Provider-agnostic: works across Twilio, Plivo, and Exotel
- Campaign orchestration and a visual flow builder
- Built so callers are not left in silence while the agent thinks
A voice agent that demos your product
An embeddable voice agent that walks a visitor through a live, interactive product demo on any website.
Try Lisn liveAgents that call agents
A simulation suite where one AI agent calls another through the real phone stack, so a voice system is tested before real customers reach it.
How it works →What we make
Bubbles
Open source · MITA terminal tool that runs a whole fleet of AI coding agents.
the lab behind it
Our system rediscovered a classic 48-multiplication method on its own. Then it went lower.
We pointed Darweel, our evolutionary framework, at 4x4 matrix multiplication and counted the multiplications each candidate used. Programs competed, mutated, and reproduced. Without being shown the answer, it arrived at Winograd's 48. A descendant then learned to skip multiplications by zero, which brought the average below 48 on the test set. The same lab builds the simulations Lisn practises against before it talks to your customers.
Scalar multiplications per 4x4 product. 47.94 is a measured average over 500 test cases; the worst case is still 48. Winograd's 48 relies on the numbers commuting, so it applies to ordinary numbers, not to every kind of matrix algebra.
Who is building Lisn

Rishi Raj
Founder & Chief Scientist
Applied AI and research. Built voice agents that run in production over real telephony, an open-source system for running fleets of AI agents, and a framework where code evolves its own algorithms. Leads Lisn's research and product.
LinkedIn ↗
Devashish
AI Advisor & Strategist
Advises on AI strategy and solution architecture end to end, from the model and the data pipeline to the product a customer actually uses. Keeps the hard technical choices honest.
LinkedIn ↗Put Lisn where your customers already are.
We are onboarding a small group of early teams. Tell us where your customers reach you, and we will set Lisn up there first.
Ground State Foundry · Meydan Free Zone, Dubai