Can I send an SMS using the agent?

Yes! Use the `send_sms` tool with the recipient's phone number and your message content. Your agent will trigger the dispatch through CallFire instantly.

How do I check the status of a specific call?

Simply ask the agent to `get_call_details` and provide the Call ID. It will retrieve the latest status, such as 'finished' or 'failed', directly from CallFire.

Does the integration allow creating a new voice broadcast?

The current toolset is focused on individual actions and querying (Read-Only/Individual Dispatch) for operational control. Massive broadcasts should be configured via the CallFire web dashboard.

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

Name: CallFire
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 CallFire as an MCP tool provider through 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="callfire_agent",
    instruction=(
        "You help users interact with CallFire "
        "using 10 available tools."
    ),
    tools=[mcp_tools],
)

Fully ManagedVinkius Servers

60%Token savings

High SecurityEnterprise-grade

IAMAccess control

EU AI ActCompliant

DLPData protection

V8 IsolateSandboxed

Ed25519Audit chain

<40msKill switch

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 CallFire MCP Server

Connect your CallFire account to any AI agent and orchestrate your voice and SMS communications, campaign tracking, and contact engagement through natural conversation.

Google ADK natively supports CallFire as an MCP tool provider. declare 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

SMS Dispatch — Send single or bulk SMS messages to your customers directly from your workspace.
Voice Call Management — Trigger individual voice calls and monitor the status of sent calls in real-time.
Campaign Oversight — List and retrieve metadata for your campaign sounds and verify your communication setups.
Keyword Management — List and monitor your rented keywords for SMS interaction.
Automation Tracking — Access and monitor your active webhooks to ensure your integrations are healthy.
Account Insights — Retrieve core profile and site information straight from your workspace.

The CallFire 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 CallFire to Google ADK via MCP

Follow these steps to integrate the CallFire 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 CallFire via MCP

Why Use Google ADK with the CallFire MCP Server

Google ADK provides unique advantages when paired with CallFire 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 CallFire

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 CallFire tools with BigQuery, Vertex AI, and Cloud Functions

CallFire + Google ADK Use Cases

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

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

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

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

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

CallFire MCP Tools for Google ADK (10)

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

get_account_info

Retrieve core account information

get_call_details

Get details of a specific call

get_sms_details

Get details of a specific SMS

list_calls

List made voice calls

list_campaign_sounds

List configured campaign sounds

list_keywords

List rented keywords

list_sent_sms

List sent SMS messages

list_webhooks

List active webhooks

send_sms

Send an SMS message

send_voice_call

Trigger a single voice call

Example Prompts for CallFire in Google ADK

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

"Send an SMS to +1234567890 saying 'Hi from Vinkius'."

"List my last 5 voice calls in CallFire."

"Show the details for SMS with ID 99283."

Troubleshooting CallFire MCP Server with Google ADK

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

McpToolset not found

Update: pip install --upgrade google-adk

CallFire + Google ADK FAQ

Common questions about integrating CallFire 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.