WhatsApp Messaging API by Retention Stack
Server Configuration
Describes the environment variables required to run the server.
| Name | Required | Description | Default |
|---|---|---|---|
| WHATSAPP_API_KEY | Yes | Your RapidAPI key. The server exits on startup if it is missing. |
Instructions
Guidance the server publishes about itself, which clients place ahead of the tool catalog so the model reads it before choosing anything.
This server publishes no instructions, or was last inspected before Glama recorded them.
Capabilities
Features and capabilities supported by this server
Protocol revision2025-11-25
| Capability | Details |
|---|---|
| tools | {
"listChanged": true
} |
Tools
Functions exposed to the LLM to take actions
| Name | Description |
|---|---|
| list_sessionsA | List all WhatsApp sessions belonging to this API key. |
| create_sessionA | Create a new WhatsApp session. Returns a session name and STARTING status — pair it with get_qr_code next. |
| get_session_statusA | Get the current status of a session (STARTING, SCAN_QR_CODE, WORKING, FAILED, STOPPED). |
| get_qr_codeA | Get the QR code to authenticate a session by scanning with WhatsApp (Settings > Linked Devices). |
| request_pairing_codeA | Request an 8-digit pairing code as an alternative to scanning a QR code. |
| check_contact_existsA | Check whether a phone number is registered on WhatsApp before sending to it. |
| send_text_messageA | Send a WhatsApp text message to a contact, group, or channel. |
| send_imageB | Send an image to a contact, group, or channel via a public URL. |
| send_fileB | Send a file (PDF, document, etc.) to a contact, group, or channel via a public URL. |
Prompts
Interactive templates invoked by user choice
| Name | Description |
|---|---|
No prompts | |
Resources
Contextual data attached and managed by the client
| Name | Description |
|---|---|
No resources | |
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