How to Use the WhatsApp Business MCP in OpenAI Agents SDK

Q: Is there a limit to how many different types of media I can send with WhatsApp Business and OpenAI Agents SDK?

The sendmediamessage tool supports images, videos, documents, and audio files. As long as the content is hosted at an absolute URL, you're good to go.

Automate WhatsApp Business interactions using OpenAI Agents SDK.

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Connect WhatsApp Business MCP to OpenAI Agents SDK

Create your Vinkius account to connect WhatsApp Business 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 WhatsApp Business with OpenAI Agents SDK

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Send structured responses via `send_quick_reply_buttons`

You can make the conversation flow better by sending up to three quick-reply buttons. This tool takes an explanation text and a comma-separated list of button labels, letting your agent guide the user's next action. Alternatively, if you need to send plain text, use `send_text_message`. Just provide the E.164 phone number and the message text; it’ll handle the basic conversation piece for you.

Manage media delivery with `send_media_message`

The agent can deliver various file types—images, videos, documents, or audio. All you need is a public URL and the correct media type to call `send_media_message`. This keeps the process simple whether it's an invoice or a quick photo. When you need precise information from the real world, use `send_location_pin` to drop physical coordinates directly into the chat. You just pass the recipient number and the lat/lng.

Initiate conversations with `send_template_message`

Starting a talk isn't always freeform text, right? Use `send_template_message` to fire off Meta-approved templates. You must specify the exact template name and language code to make it work. If you just want to acknowledge something without sending full content, call `send_emoji_reaction`. This tool requires the recipient number, a target message ID (it starts with wamid...), and the specific emoji.

Setup guide

Set up WhatsApp Business 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 WhatsApp Business tools at runtime.
3

Create your Agent

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

Run the agent

Call Runner.run(agent, prompt) to execute. The agent invokes the appropriate WhatsApp Business 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="WhatsApp Business Agent",
            instructions="You have access to WhatsApp Business 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 WhatsApp Business MCP in OpenAI Agents SDK

The OpenAI Agents SDK treats this MCP Server as just another tool. Your agent auto-discovers all 6 capabilities, meaning you don't have to manually write integration code for each one. It’s designed for building full production systems.

Because the agent system has built-in guardrails, it validates actions *before* execution. If you try to use a tool incorrectly—say, providing an invalid message ID—the process fails safely, preventing corrupted messages from going out.

Yes. You can build multi-step pipelines where the agent uses a tool like `send_template_message` to start a sequence, and then later use `send_text_message` or `send_quick_reply_buttons` to guide the user through subsequent steps.

This server primarily handles message content, specific messaging IDs (`wamid...`), geographic coordinates (lat/lng), and public file URLs. The core data type managed is the structured message payload.

The `send_media_message` tool supports images, videos, documents, and audio files. As long as the content is hosted at an absolute URL, you're good to go.

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