product · architecture

AI understands.
Real systems act.

Vesper is not a generic chatbot guessing answers. It is a quiet engineering pipeline: language models decode what your customer wants, but real database code checks and locks your actual calendar.

pipeline · step 01
Step 01 · ArrivalWebhook: Meta Cloud API · Latency: 42ms · Inbound: Received

Customer sends a message across WhatsApp, Instagram, or Messenger at any hour.

Messages stream in through official Meta Cloud webhooks with sub-100ms response times. No unread notifications sitting till morning.

Deterministic pipelineZero hallucinations

Quiet, instant, and accurate.

whatsapp · saturday 11:42 pm

Customer · 11:42 PM

Hey! Do you have any slots open tomorrow afternoon around 3 PM for haircut and beard trim?

Google Calendar checked in 0.8s · Anita free at 3:00 PM

Vesper · 11:42 PM

Yes! Anita is open tomorrow (Sunday) at 3:00 PM. That covers haircut and beard trim (approx 50 mins). Shall I lock this slot for you?

Customer · 11:43 PM

Yes please, book it!

Vesper · 11:43 PM

Confirmed: You are booked with Anita for Sunday at 3:00 PM. Calendar invite sent, see you then!

global · any country · any timezone

Built for businesses in the US and worldwide.

Whether your business operates in the United States, Europe, Australia, or Asia, Vesper connects directly to your local calendar, supports your home currency, and talks to clients from any country around the clock.

vesper · global live traffic
Global Inbound RoutingUSA · UK · Canada · Australia · Worldwide
LondonNew York (USA)TokyoSydneyNew YorkDubaiBerlin

Your business in the US, Europe, or beyond.

Whether your salon, clinic, or service shop is based in New York, California, London, Sydney, or Kathmandu, Vesper syncs seamlessly to your local business timezone (EST, PST, GMT, AEST) with zero setup friction.

Clients book from any country code.

Seamlessly handles incoming numbers from the US (+1), UK (+44), Australia (+61), UAE (+971), and 50+ countries. Quotes accurately in USD ($), GBP (£), EUR (€), or your local currency.

Zero midnight drop-off, worldwide.

Whether it is a late-night local client texting at 2:00 AM in your home city or an international client booking from across the globe, slots are atomically locked in seconds while you sleep.

Verified coverage:United States · United Kingdom · Canada · Australia · UAE · Europe · Global

Three rules we refuse to break.

01

Calendar is truth

Vesper never invents an available hour. If you block out 2:00 PM on your personal Google Calendar, Vesper knows immediately.

02

Code-switching fluency

Effortlessly handles natural everyday conversations in English, Nepali, and Romanized slang without confusing times or names.

03

Always human-accessible

Reply directly from your phone at any time. Vesper senses your response and quietly steps aside for that conversation.

See it in action.

Test our interactive WhatsApp and Instagram simulator right now.

* No receptionists were replaced in the making of this software. They just got eight hours of uninterrupted sleep.