White-label API for WhatsApp Messenger and WhatsApp Business
Connect existing WhatsApp numbers via Linked Devices and scanning a QR code. Your customers don't need to have access to 2Chat. Simple and flexible API with pricing that scales with your needs.
Host your WhatsApp numbers with 2Chat paying 10/connection (or 0.33 per day), or even less with 10+ numbers connected.
Connect Your Customers' WhatsApp Numbers
Connect customer WhatsApp numbers via API to send and receive messages, manage groups, create chatbots, and more.
Validate WhatsApp Numbers Instantly
Verify if phone numbers are active on WhatsApp before sending messages. Our verification API helps you check number validity and maintain clean contact lists for optimal message deliverability.
Powerful Group Management API
Automate WhatsApp groups at scale with 2Chat's API. Create groups, send messages, manage members, and monitor activity - ideal for community engagement and team collaboration.
Send and Receive Images, Videos, and Documents
Send and receive high-quality documents and media files through our API. Manage file uploads and track delivery status to build engaging WhatsApp experiences.
Expose 2Chat to Claude, ChatGPT and any LLM
Skip writing your own tool layer. The official 2Chat Model Context Protocol server publishes every WhatsApp, WABA, SMS, voice, contact and account endpoint as a typed tool, ready to plug into Claude, ChatGPT, OpenClaw with Hermes, Cursor, n8n and any other MCP-aware client.
Built for AI-native development
Drop the 2Chat docs, OpenAPI spec or MCP server into Claude Code, Cursor, ChatGPT or any agent that helps you ship. Predictable REST endpoints, clear schemas and a single API key header mean your AI pair can scaffold integrations in minutes, not days.
Public OpenAPI spec ready for code generation
Postman collection with ready-to-paste examples
MCP server so agents can hit the API directly
Agent skills for Claude and other AI agents (npx skills add 2ChatCo/agent-skills)
Add telephony to your product
Embed real phone calls inside your app and provision virtual numbers in 90+ countries, all through the same 2Chat platform. Use the voice SDK to drop a call interface into any web or mobile UI, and the virtual numbers API to buy, list and manage numbers programmatically.
JavaScript voice SDK for in-app calling
REST API to search, purchase and manage virtual numbers
Local, mobile and toll-free coverage across 90+ countries
Every part of 2Chat behind one REST API
The same API key covers WhatsApp Web numbers, the WhatsApp Business API, groups, catalogs, contacts, webhooks, phone calls, SMS and virtual numbers. Each group below links to its reference.
WhatsApp Web API
Numbers connected by QR code, with no Meta approval process.
- Connect numbers with a QR code, list them and get their details
- Send and receive messages, list conversations, delete messages
- Check numbers, set the profile picture and post text, image or video statuses
WhatsApp Business API
Official Cloud API numbers for templates at scale.
- Create, sync, get and delete message templates
- Send template and session messages
- Check the 24-hour conversation window and read conversations
Groups API
Run WhatsApp communities from code.
- List groups and their participants
- Create groups, add, remove, promote and demote participants
- Set the description and picture, send group messages
Catalog API
Keep WhatsApp Business catalogs in sync with your inventory.
- List, add, edit and delete products
- Upload and remove product images
- Create, edit and delete collections
Contacts API
The contact book behind every conversation.
- Create, edit and delete contacts
- Get one contact or list them all
- Search contacts
Webhooks API
Real-time events for every channel.
- Subscribe to WhatsApp Web, WhatsApp Business API, SMS and call events
- List subscriptions for the account or one channel, delete them
- Delivery logs and troubleshooting
Phone Calls API
Call data from the cloud phone system.
- Call history and call details, including recordings
- Look up the price of a call before dialing
- Caller IDs, callable virtual numbers and call event webhooks
SMS API
Programmable SMS on your virtual numbers.
- Send SMS messages
- List SMS channels and check their status
- List conversations and read message threads
Virtual Numbers API
Provision numbers in 90+ countries.
- Search regions, cities and number types
- Check the requirements for each country
- Reserve, purchase and delete numbers
Account API
Authentication, billing and users.
- Authenticate every call with a single API key
- Billing rules and API response codes
- List the users in your account
MCP server
The whole API as typed tools for AI assistants.
- Setup guide for Claude, ChatGPT and other MCP clients
- Tool reference for WhatsApp, calls, SMS and contacts
- Same API key and permissions as the REST API
Agent skills
Ready-made skills that teach coding agents the 2Chat API.
- Install with npx skills add 2ChatCo/agent-skills
- Skills for WhatsApp, groups, catalog, WABA, contacts, webhooks, calls and SMS
- Claude plugin for sales, customer service and group management
Using Baileys, whatsapp-web.js, or whatsmeow?
See how 2Chat's hosted WhatsApp API compares with running your own library: hosting, protocol updates, session management, and the path to the official API.
Build with 2Chat
Can I use the API as white-label to connect my customers' WhatsApp numbers?
Yes. You can use the API to generate the QR-code that you can display on your app and let your customer scan it to connect their WhatsApp number to your software using 2Chat just as an invisible intermediary.
What is WhatsApp number hosting?
We provide the infrastructure to connect your WhatsApp numbers via QR-code while keeping the connections alive and stable.
How do you compare to Baileys or WhatsMeow?
We not only provide the API but also a ready-to-use infrastructure. Our API is designed for production use and scale, respecting WhatsApp's limits and best practices.
What volume discounts do you offer?
Our standard pricing is 15 per connected number when choosing the Pro plan. If you plan to connect more than 20 numbers, please contact us and we will be happy to offer you a custom price.
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