JustCall MCP Server for AutoGen 10 tools — connect in under 2 minutes
Microsoft AutoGen enables multi-agent conversations where agents negotiate, delegate, and execute tasks collaboratively. Add JustCall as an MCP tool provider through the Vinkius and every agent in the group can access live data and take action.
ASK AI ABOUT THIS MCP SERVER
Vinkius supports streamable HTTP and SSE.
import asyncio
from autogen_agentchat.agents import AssistantAgent
from autogen_ext.tools.mcp import McpWorkbench
async def main():
# Your Vinkius token — get it at cloud.vinkius.com
async with McpWorkbench(
server_params={"url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"},
transport="streamable_http",
) as workbench:
tools = await workbench.list_tools()
agent = AssistantAgent(
name="justcall_agent",
tools=tools,
system_message=(
"You help users with JustCall. "
"10 tools available."
),
)
print(f"Agent ready with {len(tools)} tools")
asyncio.run(main())
* 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 JustCall MCP Server
Empower your AI agents with JustCall's cloud phone system. This MCP server allows you to list and retrieve phone calls, track SMS/MMS messages, manage contacts, and access call recordings directly through the JustCall API. Ideal for automating communication workflows and sales engagement.
AutoGen enables multi-agent conversations where agents negotiate, delegate, and collaboratively use JustCall tools. Connect 10 tools through the Vinkius and assign role-based access — a data analyst queries while a reviewer validates, with optional human-in-the-loop approval for sensitive operations.
The JustCall MCP Server exposes 10 tools through the Vinkius. Connect it to AutoGen 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 JustCall to AutoGen via MCP
Follow these steps to integrate the JustCall MCP Server with AutoGen.
Install AutoGen
Run pip install "autogen-ext[mcp]"
Replace the token
Replace [YOUR_TOKEN_HERE] with your Vinkius token
Integrate into workflow
Use the agent in your AutoGen multi-agent orchestration
Explore tools
The workbench discovers 10 tools from JustCall automatically
Why Use AutoGen with the JustCall MCP Server
AutoGen provides unique advantages when paired with JustCall through the Model Context Protocol.
Multi-agent conversations: multiple AutoGen agents discuss, delegate, and collaboratively use JustCall tools to solve complex tasks
Role-based architecture lets you assign JustCall tool access to specific agents — a data analyst queries while a reviewer validates
Human-in-the-loop support: agents can pause for human approval before executing sensitive JustCall tool calls
Code execution sandbox: AutoGen agents can write and run code that processes JustCall tool responses in an isolated environment
JustCall + AutoGen Use Cases
Practical scenarios where AutoGen combined with the JustCall MCP Server delivers measurable value.
Collaborative analysis: one agent queries JustCall while another validates results and a third generates the final report
Automated review pipelines: a researcher agent fetches data from JustCall, a critic agent evaluates quality, and a writer produces the output
Interactive planning: agents negotiate task allocation using JustCall data to make informed decisions about resource distribution
Code generation with live data: an AutoGen coder agent writes scripts that process JustCall responses in a sandboxed execution environment
JustCall MCP Tools for AutoGen (10)
These 10 tools become available when you connect JustCall to AutoGen via MCP:
get_call
Includes timestamps, participants, and associated notes. Use this for deep investigation of a specific communication event. Retrieves details for a specific call
get_contact
Returns associated phone numbers, email addresses, and metadata. Use this for detailed customer vetting before or after a call. Retrieves details for a specific contact
list_calls
Returns call direction (inbound/outbound), duration, status, and IDs. Use this to audit communication activity or track call volumes. Lists all phone calls
list_campaigns
g., dialer campaigns). Useful for monitoring sales outreach and telemarketing efforts. Lists all calling campaigns
list_contacts
Returns names, phone numbers, and IDs. Use this to search for customers or provide contact information to the user. Lists all contacts in JustCall
list_messages
Includes message content, sender/receiver, and delivery status. Essential for monitoring text-based customer interactions. Lists all SMS/MMS messages
list_numbers
Useful for identifying which numbers are available for specific campaigns or teams. Lists all phone numbers in your JustCall account
list_recordings
Use this when the user wants to audit call quality or retrieve a specific conversation record. Lists all call recordings
list_users
Useful for identifying which agent handled a specific call or message. Lists all users in your organization
list_webhooks
Useful for auditing system integrations. Lists all configured webhooks
Example Prompts for JustCall in AutoGen
Ready-to-use prompts you can give your AutoGen agent to start working with JustCall immediately.
"List all recent phone calls in JustCall."
"Show me the latest SMS messages."
"Check the details for contact ID '123'."
Troubleshooting JustCall MCP Server with AutoGen
Common issues when connecting JustCall to AutoGen through the Vinkius, and how to resolve them.
McpWorkbench not found
pip install "autogen-ext[mcp]"JustCall + AutoGen FAQ
Common questions about integrating JustCall MCP Server with AutoGen.
How does AutoGen connect to MCP servers?
Can different agents have different MCP tool access?
Does AutoGen support human approval for tool calls?
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Microsoft's framework for multi-agent collaborative conversations.
Connect JustCall to AutoGen
Get your token, paste the configuration, and start using 10 tools in under 2 minutes. No API key management needed.