Can I send WhatsApp messages using this server?

Yes. The `send_whatsapp_message` tool allows you to send outbound WhatsApp messages through the Vonage Messages API. You'll need a verified WhatsApp Business Number configured in your Vonage account as the sender.

How do I implement two-factor authentication (2FA)?

You can use the `start_verification` tool to send an OTP code to a user's phone. Once the user receives the code, use `check_verification_code` with the `request_id` to validate it. Your agent can handle the entire flow through a single conversation.

Can I check how much sending an SMS will cost me?

Absolutely. Use the `get_country_pricing` tool and provide the ISO country code (e.g., 'US' or 'GB'). Your agent will return the outbound SMS pricing for that region, helping you estimate costs before sending.

Vonage MCP Server for Google ADK 10 tools — connect in under 2 minutes

Name: Vonage
Availability: InStock
Author: Vinkius

google.github.io/adk-docs/tools/mcp-tools

Built by Vinkius GDPR 10 Tools SDK

Google Agent Development Kit (ADK) is Google's framework for building production AI agents. Add Vonage as an MCP tool provider through the Vinkius and your ADK agents can call every tool with full schema introspection.

Get MCP Server for AI Agents

ASK AI ABOUT THIS MCP SERVER

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Vinkius supports streamable HTTP and SSE.

python

from google.adk.agents import Agent
from google.adk.tools.mcp_tool import McpToolset
from google.adk.tools.mcp_tool.mcp_session_manager import (
    StreamableHTTPConnectionParams,
)

# Your Vinkius token — get it at cloud.vinkius.com
mcp_tools = McpToolset(
    connection_params=StreamableHTTPConnectionParams(
        url="https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp",
    )
)

agent = Agent(
    model="gemini-2.5-pro",
    name="vonage_agent",
    instruction=(
        "You help users interact with Vonage "
        "using 10 available tools."
    ),
    tools=[mcp_tools],
)

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Stream every event to Splunk, Datadog, or your own webhook in real-time

* Every MCP server runs on Vinkius-managed infrastructure inside AWS - a purpose-built runtime with per-request V8 isolates, Ed25519 signed audit chains, and sub-40ms cold starts optimized for native MCP execution. See our infrastructure

About Vonage MCP Server

Connect your Vonage account to any AI agent and power your global communications through natural conversation.

Google ADK natively supports Vonage as an MCP tool provider — declare the Vinkius Edge URL and the framework handles discovery, validation, and execution automatically. Combine 10 tools with Gemini's long-context reasoning for complex multi-tool workflows, with production-ready session management and evaluation built in.

What you can do

Multi-Channel Messaging — Send outbound messages via SMS, WhatsApp Business, and Viber with ease
2FA & Verification — Start and check identity verification requests (OTP) to secure your user accounts
Number Management — List all virtual phone numbers rented by your account and update their inbound webhooks
Account Insights — Check your real-time account credit balance and monitor spending directly from your agent
Global Pricing — Retrieve outbound SMS pricing for any country to estimate communication costs accurately
Virtual Numbers — View caller ID capabilities (SMS, Voice) for all your rented virtual numbers

The Vonage MCP Server exposes 10 tools through the Vinkius. Connect it to Google ADK in under two minutes — no API keys to rotate, no infrastructure to provision, no vendor lock-in. Your configuration, your data, your control.

How to Connect Vonage to Google ADK via MCP

Follow these steps to integrate the Vonage MCP Server with Google ADK.

Install Google ADK

Run pip install google-adk

Replace the token

Replace [YOUR_TOKEN_HERE] with your Vinkius token

Create the agent

Save the code above and integrate into your ADK workflow

Explore tools

The agent will discover 10 tools from Vonage via MCP

Why Use Google ADK with the Vonage MCP Server

Google ADK provides unique advantages when paired with Vonage through the Model Context Protocol.

Google ADK natively supports MCP tool servers — declare a tool provider and the framework handles discovery, validation, and execution

Built on Gemini models, ADK provides long-context reasoning ideal for complex multi-tool workflows with Vonage

Production-ready features like session management, evaluation, and deployment come built-in — not bolted on

Seamless integration with Google Cloud services means you can combine Vonage tools with BigQuery, Vertex AI, and Cloud Functions

Vonage + Google ADK Use Cases

Practical scenarios where Google ADK combined with the Vonage MCP Server delivers measurable value.

Enterprise data agents: ADK agents query Vonage and cross-reference results with internal databases for comprehensive analysis

Multi-modal workflows: combine Vonage tool responses with Gemini's vision and language capabilities in a single agent

Automated compliance checks: schedule ADK agents to query Vonage regularly and flag policy violations or configuration drift

Internal tool platforms: build self-service agent platforms where teams connect their own MCP servers including Vonage

Vonage MCP Tools for Google ADK (10)

These 10 tools become available when you connect Vonage to Google ADK via MCP:

cancel_verification_request

Aborts an active verification request

check_verification_code

Checks the OTP code submitted by a user for an active verification request

get_account_balance

Retrieves the current Vonage account credit balance

get_country_pricing

Provide the ISO 3166-1 alpha-2 country code. Retrieves outbound SMS pricing for a specific country

list_rented_numbers

Lists all virtual phone numbers rented by the account

send_sms

Provide a sender name (alpha or number) and a target phone number in E.164 format. Sends an outbound SMS message via Vonage

send_viber_message

Provide your specific Viber Publisher ID. Sends a Viber service message via Vonage

send_whatsapp_message

Requires a verified WhatsApp Business Number as the sender. Sends a WhatsApp message via the Vonage Messages API

start_verification

Provide the target number and your brand name. Starts a 2FA identity verification by sending an OTP code

update_number_webhook

Requires the number in E.164 format. Updates the inbound SMS callback URL for a virtual number

Example Prompts for Vonage in Google ADK

Ready-to-use prompts you can give your Google ADK agent to start working with Vonage immediately.

"Send an SMS to +123456789 saying 'Your order is ready for pickup!'."

"Start a verification for number +123456789 with brand 'MyCoolApp'."

"What is my current account balance and the SMS price for the UK?"

Troubleshooting Vonage MCP Server with Google ADK

Common issues when connecting Vonage to Google ADK through the Vinkius, and how to resolve them.

McpToolset not found

Update: pip install --upgrade google-adk

Vonage + Google ADK FAQ

Common questions about integrating Vonage MCP Server with Google ADK.

How does Google ADK connect to MCP servers?

Import the MCP toolset class and pass the server URL. ADK discovers and registers all tools automatically, making them available to your agent's tool-use loop.

Can ADK agents use multiple MCP servers?

Yes. Declare multiple MCP tool providers in your agent configuration. ADK merges all tool schemas and the agent can call tools from any server in a single turn.

Which Gemini models work best with MCP tools?

Gemini 2.0 Flash and Pro models both support function calling required for MCP tools. Flash is recommended for latency-sensitive use cases, Pro for complex reasoning.