MIT License · Zero cost forever

Restaurant POS that speaks AI

Name: Zest
Author: Zest

AI-native · API-first · Zero recurring cost

Install via Terminal

curl -fsSL https://zestai.secretbase.dev/install.sh | bash

View on GitHub

Compatible with your favourite Agentic Harnesses

Zest

admin

John

super admin

Dashboard

Welcome back, John.

Dishes

Tables

Orders

Bookings

Most Popular Dishes

142 sold

Sashimi Platter

刺身盛り合わせ · HKD 288

118 sold

Yakitori

焼き鳥 · HKD 58

97 sold

Ramen

ラーメン · HKD 88

84 sold

Gyu Don

牛丼 · HKD 88

76 sold

Edamame

枝豆 · HKD 38

71 sold

Karaage

唐揚げ · HKD 68

65 sold

Katsu Don

勝つ丼 · HKD 98

58 sold

Tempura

天ぷら · HKD 128

Works on:

Trusted by restaurants around the world

Core feature

AI-Native POS

Run your entire POS through AI agents

This is what Zest is built for. Connect Claude, Codex, Hermes, or any agentic harness — then order, price, and report through natural language. No admin panels required.

terminal

$ zest order --table T03 --items

'[{dish:2,qty:1},{dish:5,qty:2}]'

✓ Order #42 placed

1× Tonkotsu Ramen → T03

2× Salmon Sashimi → T03

Kitchen notified ✓

Order through agents

Tell your AI agent what to place. It calls the REST API or CLI — table orders, takeaway, multi-round rounds. Kitchen sees it instantly.

Set lunch price of ramen to HK$78

✓ Ramen lunch price updated: HK$88 → HK$78

Show me today's top dish

Sashimi Platter · 38 orders · HK$40,896 revenue

Manage pricing through agents

Update dish prices, set lunch/dinner rates, or bulk-adjust the menu — all via conversation. No clicking through admin panels.

New Dish

AI fill

JA豚骨ラーメン

ENTonkotsu Ramen

ZH豚骨拉麵

CATRamen

AI data entry & translation

Type a dish name in any language — AI fills names, descriptions, and categories across all three languages instantly. Works through the GUI, REST API, or CLI — no manual translation needed.

This WeekAI query

Mon

Tue

Wed

Thu

Fri

Sat

Sun

142 orders↑ 18%

Sashimi Platter · HK$40,896 revenue

Reports through agents

Ask for sales summaries, top dishes, revenue by period, or table turnover. Your agent queries the API and returns answers in plain language.

PromotionsAI agent

Give table T05 a 20% off coupon

✓ Coupon SAVE20 created

SAVE20 · 20% OFF · Table T05

Reward our regulars

✓ +100 loyalty points × 8 members

LOYALTY · 100 pts · auto-applied

Promotions through agents

Create coupons, award loyalty points, and launch combo deals by conversation. Your agent handles the math — discounts apply automatically at checkout.

Restaurant Agentonline

Which dishes have the highest food cost?

calling analyze_menu_performance…

Truffle Pasta 38% · Ribeye 41% · Lobster Roll 46%

How's stock tonight?

calling inventory.low_stock…

✓ 3 items low — salmon, scallops, wagyu

Chat with your data

Ask about revenue, inventory, or menu performance. The agent executes tools and streams responses in real time.

Features

Everything a modern restaurant needs

Nine reasons why Zest is the last POS you will ever install.

AI-Native Architecture

The first POS built for the agent era. CLI and REST API designed for LLM consumption.

Multilingual by Default

English, Traditional Chinese & any other language baked into every dish, description, and time slot.

Zero Recurring Cost

No SaaS fees. No per-terminal charges. No transaction percentages. Your data stays on your machine.

Real-Time Order Board

Kanban-style order management with live SSE updates. Kitchen sees orders instantly.

QR Table Ordering

Customers scan a QR, browse the multilingual menu, add rounds, view the bill. Dine-in and takeaway.

Extensible Plugin System

Extendable throughhooks. Install inventory, payments, promotions, reporting. Write your own with definePlugin().

Inventory TrackingPro

Track ingredients, recipes, suppliers, stock levels, and cost of goods sold. Auto-deduct on orders, low-stock alerts, and waste tracking.

Promotions & LoyaltyPro

Discount coupons, loyalty points, and promotional tools. Auto-apply at checkout, earn points per order, and launch combo deals.

Reporting & AnalyticsPro

Revenue analytics, menu performance, peak hours, and AI-powered insights. Export to CSV and chat with your data through agents.

How it works

Your POS, now programmable

Connect any AI agent and run your restaurant through conversation. No admin panels. No training. Just talk.

Connect

Point any AI agent at your API — Claude, Codex, Hermes, or a custom bot. One URL, one key, done.

Speak

Place orders, update pricing, pull sales reports, and manage your menu — all through natural language.

Execute

Kitchen prints. Dashboard updates. Reports generate. Everything syncs in real time — QR ordering, takeaway, reservations, all of it.

Compare

Zest vs Traditional POS

Your POS vendor charges you $200/month. We charge you nothing.

Monthly cost

Zest

Traditional POS

$50–$200/terminal

Transaction fees

Zest

Traditional POS

2.5–3.5%

AI/CLI support

Zest

Built-in

Traditional POS

None

Multilingual

Zest

Native

Traditional POS

Bolt-on

Real-time updates

Zest

SSE

Traditional POS

Depends

Data ownership

Zest

Your server

Traditional POS

Their cloud

API access

Zest

Full REST

Traditional POS

Limited/Paid

API keys

Zest

Built-in (sk-* keys)

Traditional POS

None

Plugin system

Zest

Native plugin architecture

Traditional POS

None

Time-based pricing

Zest

Built-in

Traditional POS

Manual

Feature	Zest	Traditional POS
Monthly cost	$0	$50–$200/terminal
Transaction fees	0%	2.5–3.5%
AI/CLI support	Built-in	None
Multilingual	Native	Bolt-on
Real-time updates	SSE	Depends
Data ownership	Your server	Their cloud
API access	Full REST	Limited/Paid
API keys	Built-in (sk-* keys)	None
Plugin system	Native plugin architecture	None
Time-based pricing	Built-in	Manual

Command Line Interface

Built for agents, loved by developers

A CLI-first workflow that feels as fast as the kitchen needs it to be.

zest-cli

$ npx zest-cli menu --pretty

  ZEST — Menu

  Sashimi
    #1 鮭の刺身
       Salmon Sashimi
       三文魚刺身
       HK$88.00

    #2 マグロの刺身
       Tuna Sashimi
       金槍魚刺身
       HK$98.00

$ npx zest-cli order \
    --mode dine-in --table T01 \
    --items '[{"dish_id":1,"qty":2}]'

✓ Order #42 placed. 2x Salmon Sashimi for Table T01.

Copy-paste friendly. Pipe it into your own tools.

Tech Stack

Boring stack, exciting results

Open source, offline-first, and designed to last.

Layer	Technology
Framework	Next.js 16 + React 19
Database	SQLite (WAL mode)
Styling	Tailwind CSS v4 + shadcn/ui
Auth	bcrypt + SHA-256 API keys
Printing	ESC/POS BLE thermal
AI	DeepSeek API (optional)
CLI	Commander.js + Axios

Roadmap

Shipping now and what is next

We ship fast, in the open. Here is what is already real and what is cooking.

Built & Shipping

Multilingual menu & admin dashboard
QR table ordering (dine-in + takeaway)
Real-time kanban order board
USB & BLE thermal printing
Time-based pricing
Dish variants & options
Reservation system with calendar & time slots
AI-assisted menu entry
Customer CLI
4 color theme system
Full REST API (50+ endpoints)
Inventory tracking (ingredients, recipes, suppliers, stock, COGS)
Reporting & analytics with AI agent chat
Multi-location support (tenant isolation)
Promotions engine (coupons, loyalty points, combos)
Plugin architecture (definePlugin, hooks, auto-migration)
Dish image upload

Coming Soon

Cloud database (Postgres multi-device sync)
Payment processing (Stripe Terminal, Octopus)
Receipt & invoice PDF generation

On the Roadmap

Delivery platform integration
Employee scheduling

Start here

Get started in one command

Self-host in minutes. No sales call required.

curl -fsSL https://zestai.secretbase.dev/install.sh | bash