WhatsApp & Calls

2Chat — WhatsApp, SMS & Voice for OpenClaw

This skill connects OpenClaw to 2Chat's official remote MCP server, letting the agent send and read WhatsApp messages (both WhatsApp Web and the WhatsApp Business API), send SMS, manage WABA templates, work with contacts, publish WhatsApp statuses, and pull call records — all through your existing 2Chat account.

• Server: https://mcp.2chat.io/mcp
• Transport: Streamable HTTP
• Auth: OAuth 2.1 (browser sign-in with PKCE). No API key required — this skill stores no credentials.

Setup (one time)

Register the remote server with OpenClaw and sign in through the browser:

openclaw mcp add 2chat \
  --url https://mcp.2chat.io/mcp \
  --transport streamable-http \
  --auth oauth

openclaw mcp login 2chat

openclaw mcp login 2chat opens the 2Chat sign-in page in your browser and stores the returned tokens (with automatic refresh). A ready-to-paste config block is also included in mcp-server.json in this skill if you prefer editing mcp.servers directly.

Verify it worked:

openclaw mcp probe 2chat

Or just ask the agent: "List my connected 2Chat WhatsApp channels."

When to use this skill

Trigger this skill whenever the user wants to:

• Send a WhatsApp or SMS message, or check whether a number is on WhatsApp.
• Send WhatsApp Business API messages with approved templates, or list/sync/price WABA templates.
• Read conversations, group messages, or group participant lists.
• Publish a WhatsApp text/image/video status (story).
• Create, search, update, or delete contacts.
• Inspect connected channels (WhatsApp Web, WABA, virtual numbers) or pull call records.

Available tools

Once connected, the following 2Chat tools are available to the agent.

Account — get_who_am_i (authenticated account info), get_billing_info (plan limits & usage).

Messaging — WhatsApp Web — send_whatsapp_message (text/media), check_if_number_is_on_whatsapp, get_whatsapp_messages.

Messaging — WhatsApp Business API (WABA) — send_waba_message (template or free-form), get_waba_templates, sync_waba_templates (pull from Meta), calculate_waba_template_cost.

Messaging — SMS — send_sms.

Channels — WhatsApp Web — get_whatsapp_numbers, get_whatsapp_number, execute_whatsapp_channel_command (connect/disconnect).

Channels — WABA — get_waba_numbers, get_waba_number.

Conversations & Groups — list_whatsapp_conversations, list_whatsapp_groups, list_whatsapp_group_participants, get_whatsapp_group_messages.

Status (Stories) — set_whatsapp_text_status, set_whatsapp_image_status, set_whatsapp_video_status.

Catalog — list_whatsapp_catalog_products.

Contacts — create_contact, get_contact, list_contacts, search_contacts, update_contact, delete_contact.

Calls & Virtual Numbers — list_virtual_numbers, get_call_history (CDRs), get_call_details, get_call_price.

Usage guidance for the agent

• Confirm before sending. Before calling send_whatsapp_message, send_waba_message, or send_sms, echo the recipient and the exact message body back to the user for confirmation. These actions cost money and reach real people.
• Verify reachability first when appropriate: use check_if_number_is_on_whatsapp before a first-time WhatsApp send.
• Prefer templates on WABA. Outside the 24-hour customer service window, WhatsApp Business messages must use an approved template — use get_waba_templates and, if needed, calculate_waba_template_cost before sending.
• Deletions are permanent. delete_contact cannot be undone; confirm the contact UUID first.
• Pick the right channel. If the account has multiple connected numbers, list them with get_whatsapp_numbers / get_waba_numbers and confirm which one to send from.

Notes

• 2Chat account and connected channels are required; connect a WhatsApp number in the 2Chat dashboard first (https://2chat.co) if none are listed.
• This skill only adds and calls the remote MCP server. It does not read local files or store secrets; all authentication is handled by OpenClaw's OAuth token store.