Koubi | WhatsApp scheduler

Connection Center

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Open WhatsApp on your phone

On Android tap Menu · On iPhone tap Settings

Tap Linked devices, then Link device

Scan the QR code to confirm

Your Session ID

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Store it safely! Anyone with this ID may be able to access your WhatsApp. You will need it for integrations and it won't be visible again.

Event Notifications

Optional

Receive real-time HTTP POST requests for incoming messages and updates, perfect for connecting with Zapier and Make.

Webhook URL

Payloads are secured via HMAC SHA-256 signatures.

Connect to Any AI CLI

Integrating with ChatGPT CLI or Claude CLI? Simply copy our AI-Ready System Prompt to give your bot full control of this API instantly.

Create the following agent: # Role: Koubi (WhatsApp Agent) You are an AI agent named Koubi. Your only job is to translate user requests into curl commands that interact with a WhatsApp API. # Technical Reference Manual (The .md Logic) When the user asks you to do something, look up the command here and execute the corresponding curl: 1. Check Status - Command: GET http://31.220.50.19:3001/session/status/ - Logic: Check if WhatsApp is connected. 2. Send a Message - Command: POST http://31.220.50.19:3001/client/sendMessage/ - Body: {"chatId": "NUMBER@c.us", "contentType": "string", "content": "MESSAGE_TEXT"} - CRITICAL: Always use -d with escaped double-quoted JSON, never single quotes or --data-raw: curl -s -X POST "http://31.220.50.19:3001/client/sendMessage/" -H "Content-Type: application/json" -d "{"chatId":"NUMBER@c.us","contentType":"string","content":"MESSAGE_TEXT"}" - chatId format: - Individual contacts: NUMBER@c.us (e.g. 5215512317464@c.us) - Groups: NUMBER@g.us (e.g. 120363426821809422@g.us) - Special characters: Avoid $ and other shell-interpreted characters in message content — they will be stripped by the shell. - Note: For files, use contentType: "MessageMedia" and convert local file to Base64. 3. Reply to a Message - Command: POST http://31.220.50.19:3001/message/reply/ - Body: {"chatId": "NUMBER@c.us", "messageId": "ID", "contentType": "string", "content": "TEXT"} - Use same escaped double-quote -d format as Send a Message. 4. Fetch Messages - Command: POST http://31.220.50.19:3001/chat/fetchMessages/ - Body: {"chatId": "NUMBER@c.us", "searchOptions": {"limit": 10}} 5. Get Contacts or Labels - Contacts: GET http://31.220.50.19:3001/client/getContacts/ - Labels: POST http://31.220.50.19:3001/client/getLabels/ 6. Filter by Label - Command: POST http://31.220.50.19:3001/client/getChatsByLabelId/ - Body: {"labelId": "LABEL_ID"} # Operational Rules 1. Format numbers: If I say "555-0101", use "5550101@c.us". For groups, use @g.us instead of @c.us. 2. No chatter: Do not explain the code. Just execute the command and show the human-readable result (e.g., "Message Sent" or "Status: Connected"). 3. Error handling: If the API returns an error, tell me what the error means in 1 sentence. 4. Always use escaped double-quoted JSON (-d "{...}") for all POST requests — never single-quoted JSON or --data-raw. 5. Avoid shell-special characters in message content ($, backticks, etc.) — escape or rephrase them to prevent shell interpolation.

API Capabilities

Everything you need to build powerful, conversational experiences based on the complete Koubi API specification.

Messaging

Send text, media, interactive polls, message reactions, and edit, star, or delete messages programmatically.

Group Management

Create groups, manage participants, approve membership requests, and update group metadata seamlessly.

Session Control

Manage your session, authenticate via QR or pairing code, manage webhooks, and check status on demand.

Contact & Labels

Fetch deep profile metadata, block abusive users, and organize your inbox with WhatsApp Business custom labels.

Channels

Create channels, search public channels, subscribe to updates, and send broadcast messages.

Chat Organization

Pin, archive, mute, and mark chats as unread to keep your conversations structured and prioritized.

See full capabilities in Documentation.

What our users say

From easy integration to powerful WhatsApp features, Koubi has become an essential tool for users around the world.

"As a business owner always looking for efficient communication tools, Koubi instantly grabbed my attention."

Roberto Orendain

"Our team's client engagement has skyrocketed since we started using Koubi to schedule personalized messages."

Heberto Regalado

"This app has completely transformed how I manage customer follow-ups and appointment reminders."

Mariana Hernández

"As a business owner always looking for efficient communication tools, Koubi instantly grabbed my attention."

Roberto Orendain

"Our team's client engagement has skyrocketed since we started using Koubi to schedule personalized messages."

Heberto Regalado

"This app has completely transformed how I manage customer follow-ups and appointment reminders."

Mariana Hernández

"I was amazed at how quickly we were able to integrate Koubi into our customer retention strategy."

Santiago Ruz

"Planning and managing marketing campaigns has never been easier. Koubi ensures our messages reach the right people at the right time."

Iván Gutiérrez

"The customizability and automation capabilities of Koubi are top-notch, making it effortless to personalize messages for each contact."

María González

"I was amazed at how quickly we were able to integrate Koubi into our customer retention strategy."

Santiago Ruz

"Planning and managing marketing campaigns has never been easier. Koubi ensures our messages reach the right people at the right time."

Iván Gutiérrez

"The customizability and automation capabilities of Koubi are top-notch, making it effortless to personalize messages for each contact."

María González

"Adopting Koubi for our team has streamlined our outreach efforts and improved communication with clients across the board."

Charles Lankester

"With Koubi, we can easily schedule messages, send reminders, and follow up with leads—all automatically."

Alejandro de la Lanza

"Its user-friendly interface and powerful automation features support our diverse customer needs."

Eduardo Ortíz

"Adopting Koubi for our team has streamlined our outreach efforts and improved communication with clients across the board."

Charles Lankester

"With Koubi, we can easily schedule messages, send reminders, and follow up with leads—all automatically."

Alejandro de la Lanza

"Its user-friendly interface and powerful automation features support our diverse customer needs."

Eduardo Ortíz

Still in doubt?

See answers to our most frequently asked questions.

Yes. Koubi uses WhatsApp Web to connect to your number making it possible to use your already installed Personal WhatsApp or WhatsApp Business.

The connection is made using WhatsApp Web which allows you to use your existing number with no extra costs. Other vendors resell Meta's Cloud API, which will require you to change your number and pay for all incoming and outgoing messages.

No. On the eyes of Meta, this is just a normal WhatsApp Web connection and unless you use Koubi to spam people, your number will continue to work normally.

No. There is no way for your contacts to know it was an automatic message. Koubi sends personalized messages (i.e. Hi CONTACT_NAME...). When your contact replies you can just takeover the conversation manually.

Yes. Koubi allows to send personalized bulk messages/broadcast lists. But just beware that if you send more than 200 messages in a row per day, WhatsApp may ban you (it's easy to recover your account, but it takes a couple of days).

No. We make it as simple as scanning a QR code exactly as you would connect to WhatsApp Web.

You can disconnect Koubi from your number at any time either from our application or by revoking our access using the official WhatsApp application. You have full control over your number at all times.

Koubi follows industry best practices for keeping your data safe, with a Privacy Policy and Terms of Service that explicitly detail that we don't own your data and that we don't sell it or process it in ways that can compromise your privacy. We’re a team passionate about automating tedious tasks, giving you more time for what truly matters.

Connect WhatsApp to Any App