How to Use the Wati MCP in OpenAI Agents SDK

Q: Which types of messages can Wati manage using OpenAI Agents SDK?

You've got two main ways: free-text session messages via sendsessionmessage, or structured templates using sendtemplatemessage. The agent handles which one to use based on the prompt.

Q: Can I list all my contacts in Wati with OpenAI Agents SDK?

Yep. You just need to invoke the listwhatsappcontacts tool. It pulls a full roster of every WhatsApp contact currently stored in your Wati CRM.

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Connect Wati MCP to OpenAI Agents SDK

Create your Vinkius account to connect Wati to OpenAI Agents SDK and route execution through our secure gateway. The platform manages server hosting, runtime updates, and security layers. Configuration requires no manual server provisioning.

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Setup Wati with OpenAI Agents SDK

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Manage and send templated messages

The `send_template_message` tool allows your agent to push pre-approved WhatsApp templates to specific users. You just need the template name and the target phone number. This mechanism ensures every message adheres to Wati's rules, keeping you compliant while letting your agent talk business.

Check contact details in Wati

Use `get_whatsapp_contact_details` when you have a phone number. It fetches the full profile data for that WhatsApp contact inside Wati. This means your agent doesn't just know the user exists; it knows their stored details, which is crucial context before sending a message.

Audit campaign history

The `list_broadcast_campaigns` tool lets your agent look up both active and previous WhatsApp broadcast campaigns. You can see what's running or what ran last quarter. It’s a quick way to audit your marketing efforts without jumping into the Wati dashboard manually.

Setup guide

Set up Wati MCP in OpenAI Agents SDK

Prerequisites

Python 3.10+ installed
openai-agents package (pip install openai-agents)
Active Vinkius subscription with a valid endpoint token

1

Install the SDK

Run pip install openai-agents to install the OpenAI Agents SDK. The MCP integration is built-in — no extra dependencies needed.
2

Connect via SSE transport

Use MCPServerSse with your Vinkius endpoint URL. Replace [YOUR_TOKEN_HERE] with your token from cloud.vinkius.com. The SDK auto-discovers all Wati tools at runtime.
3

Create your Agent

Pass the MCP to Agent(mcp_servers=[server]). The agent receives Wati tools as native definitions — JSON schemas resolve automatically.
4

Run the agent

Call Runner.run(agent, prompt) to execute. The agent invokes the appropriate Wati tools and returns structured results. Copy the full example on the right to get started.

agent.py

import asyncio
from agents import Agent, Runner
from agents.mcp import MCPServerSse

async def main():
    async with MCPServerSse(
        url="https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
    ) as server:
        agent = Agent(
            name="Wati Agent",
            instructions="You have access to Wati tools.",
            mcp_servers=[server],
        )
        result = await Runner.run(agent, "List recent transactions")
        print(result.final_output)

asyncio.run(main())

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Common questions about Wati MCP in OpenAI Agents SDK

Your agent uses the MCP Server connection to access WhatsApp functions. You pass the Wati server instance directly into the Agent constructor, and it handles everything from there.

You've got two main ways: free-text session messages via `send_session_message`, or structured templates using `send_template_message`. The agent handles which one to use based on the prompt.

The MCP Server exposes contact details, message history, and campaign lists. Specifically, your agent can call `get_whatsapp_chat_history` using a phone number to pull the user's recent messages.

Yep. You just need to invoke the `list_whatsapp_contacts` tool. It pulls a full roster of every WhatsApp contact currently stored in your Wati CRM.

This server touches contact details and phone numbers, specifically when running tools like `get_whatsapp_contact_details`. Treat that information responsibly.

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