How to Use the JustCall MCP in CrewAI

Q: Is it possible to restrict tool access for specific JustCall agents in CrewAI?

Yes. Use the toolfilter option in your agent definition to limit which tools each agent can access from the JustCall server.

Deploy autonomous agent crews for phone support using JustCall and CrewAI.

See Vinkius in Action

Works with every AI agent you already use

…and any MCP-compatible client

MCP Servers - Free for Subscribers

Connect JustCall MCP to CrewAI

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

GDPR Free for Subscribers

Setup JustCall with CrewAI

Ask AI about this MCP

ChatGPT

Claude

Perplexity

Specialized agents for JustCall tasks

Assign a dedicated agent to monitor your phone queue using `list_calls`. This agent can pass relevant data to a second agent responsible for drafting responses. This setup allows for deep specialization. One agent handles the data retrieval while the other focuses on the logic of your customer interactions.

Shared memory across CrewAI agents

Your agents share context from `get_contact` to ensure the customer experience is consistent. When an agent updates a record with `create_contact`, the whole crew sees the change. This shared memory eliminates redundant work. Your crew works as a single unit, referencing the same contact history to resolve tickets faster.

Autonomous response with JustCall

Configure your crew to act on incoming data without human intervention. The `send_message` tool allows agents to close the loop once a resolution is reached. Set your agents to follow sequential or hierarchical patterns. You control the flow of data from identification to action within the JustCall system.

Setup guide

Set up JustCall MCP in CrewAI

Prerequisites

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

1

Install CrewAI
Run pip install crewai to install the framework. MCP support is built-in via the mcps parameter.
2

Add the MCP URL to your agent
Pass your Vinkius endpoint directly to the mcps list. Replace [YOUR_TOKEN_HERE] with your token from cloud.vinkius.com. CrewAI handles tool discovery and caching automatically.
3

Kick off your crew
Create a Crew with your agent and tasks. Call crew.kickoff() — the agent will automatically invoke JustCall tools as needed.

crew.py

from crewai import Agent, Task, Crew

agent = Agent(
    role="JustCall Analyst",
    goal="Access and analyze JustCall data via MCP.",
    backstory="Expert analyst with direct JustCall access.",
    mcps=[
        "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
    ],
)

task = Task(
    description="List recent JustCall transactions",
    agent=agent,
    expected_output="A summary of recent activity",
)

crew = Crew(agents=[agent], tasks=[task])
result = crew.kickoff()
print(result)

Get your connection token →

Prerequisites

Python 3.10+ installed
crewai + crewai-tools packages
Active Vinkius subscription with a valid endpoint token

1

Install dependencies
Run pip install crewai crewai-tools. The MCPServerAdapter handles lifecycle management and tool conversion.
2

Connect with MCPServerAdapter
Use MCPServerAdapter as a context manager with SseServerParameters pointing to your Vinkius endpoint. The adapter automatically manages connection lifecycle.
3

Assign tools and run
Pass the returned mcp_tools to your agent's tools parameter. The adapter converts MCP tools to native BaseTool objects compatible with all CrewAI agents.

crew.py

from crewai import Agent, Task, Crew
from crewai_tools import MCPServerAdapter
from mcp import SseServerParameters

server_params = SseServerParameters(
    url="https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
)

with MCPServerAdapter(server_params) as mcp_tools:
    agent = Agent(
        role="JustCall Analyst",
        goal="Access and analyze JustCall data via MCP.",
        backstory="Expert analyst with direct JustCall access.",
        tools=mcp_tools,
    )

    task = Task(
        description="List recent JustCall transactions",
        agent=agent,
        expected_output="A summary of recent activity",
    )

    crew = Crew(agents=[agent], tasks=[task])
    result = crew.kickoff()
    print(result)

Get your connection token →

Independent Platform Disclaimer: Vinkius is an independent platform and is not affiliated with, endorsed by, sponsored by, verified by, or otherwise authorized by JustCall. All third-party trademarks, logos, and brand names are the property of their respective owners. Their use on this website is strictly for informational purposes to identify service compatibility and interoperability.

Why Choose Vinkius

Vinkius connects your tools to AI with real-time monitoring and automatic cost savings — all from one dashboard.

Connect JustCall now

Real-time monitoring

Live

visibility into every interaction

Connect your favorite tools to your AI and see exactly what's happening — every request, every response, in real time.

Built-in savings

60%

lower AI costs

Vinkius compresses data between your apps and your AI automatically. Lower bills every month — no configuration required.

Single dashboard

One

place for every integration

Every tool your AI connects to, managed from a single screen. One account, complete control.

Common questions about JustCall MCP in CrewAI

Pass the server URL into the agent's MCP configuration list. Your agents will then gain the ability to execute tools like `list_contacts` and `list_calls`.

They can. Each agent in your crew maintains its own connection, allowing for parallel execution of different tasks across your telephony account.

Yes. Use the tool_filter option in your agent definition to limit which tools each agent can access from the JustCall server.

Define a manager agent to oversee your crew. This agent can delegate specific tasks to workers, such as using `get_message_details` to verify a support resolution.

All interactions are scoped to your unique endpoint token. Each agent only interacts with the JustCall API using the permissions you explicitly provide in the configuration.

Use it with your favorite AI tools

Connect this server to Cursor, Claude, VS Code, and more.

OpenAI Agents SDK sdk-python

Google ADK sdk-python

Pydantic AI sdk-python

Vercel AI SDK sdk-typescript