JustCall MCP Server for OpenAI Agents SDKGive OpenAI Agents SDK instant access to 12 tools to Create Contact, Get Account Profile, Get Call Details, and more

Name: JustCall
Price: 29 USD
Availability: InStock
Rating: 5.0 (1 reviews)
Author: Vinkius

GDPR Free for Subscribers

The OpenAI Agents SDK enables production-grade agent workflows in Python. Connect JustCall through Vinkius and your agents gain typed, auto-discovered tools with built-in guardrails. no manual schema definitions required.

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The JustCall MCP Server for OpenAI Agents SDK is a standout in the Customer Support category — giving your AI agent 12 tools to work with, ready to go from day one.

Built for AI Agents by Vinkius

Vinkius delivers Streamable HTTP and SSE to any MCP client

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python

import asyncio
from agents import Agent, Runner
from agents.mcp import MCPServerStreamableHttp

async def main():
    # Your Vinkius token. get it at cloud.vinkius.com
    async with MCPServerStreamableHttp(
        url="https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
    ) as mcp_server:

        agent = Agent(
            name="JustCall Assistant",
            instructions=(
                "You help users interact with JustCall. "
                "You have access to 12 tools."
            ),
            mcp_servers=[mcp_server],
        )

        result = await Runner.run(
            agent, "List all available tools from JustCall"
        )
        print(result.final_output)

asyncio.run(main())

Fully ManagedVinkius Servers

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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 JustCall MCP Server

Connect your JustCall account to any AI agent and manage phone communications through natural conversation.

The OpenAI Agents SDK auto-discovers all 12 tools from JustCall through native MCP integration. Build agents with built-in guardrails, tracing, and handoff patterns. chain multiple agents where one queries JustCall, another analyzes results, and a third generates reports, all orchestrated through Vinkius.

What you can do

Call Management — Make outbound calls, track call logs with duration and status
SMS Messaging — Send text messages to contacts and track delivery
Contact Database — List contacts, create new entries, and inspect profiles
Call Recordings — Access call recordings with metadata
Phone Numbers — List available and assigned phone numbers
Agent Monitoring — Track agent performance, call volumes, and availability

The JustCall MCP Server exposes 12 tools through the Vinkius. Connect it to OpenAI Agents SDK in under two minutes — credentials fully managed, no infrastructure to provision, no vendor lock-in. Your configuration, your data, your control.

All 12 JustCall tools available for OpenAI Agents SDK

When OpenAI Agents SDK connects to JustCall through Vinkius, your AI agent gets direct access to every tool listed below — spanning cloud-phone, sms-messaging, call-logging, and more. Every call runs in a secure, isolated environment with full audit visibility. Beyond a simple connection, you get real-time monitoring of agent activity, enterprise governance, and optimized token usage.

create

Create contact on JustCall

Create a new contact

get

Get account profile on JustCall

Get my profile

get

Get call details on JustCall

Get call details

get

Get contact on JustCall

Get contact details

get

Get message details on JustCall

Get message details

list

List account numbers on JustCall

List JustCall numbers

list

List calls on JustCall

List phone calls

list

List contacts on JustCall

List phone contacts

list

List messages on JustCall

List SMS/MMS messages

list

List team users on JustCall

List team members

list

List webhooks on JustCall

List active webhooks

send

Send message on JustCall

Send SMS/MMS

Connect JustCall to OpenAI Agents SDK via MCP

Follow these steps to wire JustCall into OpenAI Agents SDK. The entire setup takes under two minutes — your credentials stay safe behind Vinkius.

Install the SDK

Run pip install openai-agents in your Python environment

Replace the token

Replace [YOUR_TOKEN_HERE] with your Vinkius token from cloud.vinkius.com

Run the script

Save the code above and run it: python agent.py

Explore tools

The agent will automatically discover 12 tools from JustCall

Why Use OpenAI Agents SDK with the JustCall MCP Server

OpenAI Agents SDK provides unique advantages when paired with JustCall through the Model Context Protocol.

Native MCP integration via `MCPServerSse`, pass the URL and the SDK auto-discovers all tools with full type safety

Built-in guardrails, tracing, and handoff patterns let you build production-grade agents without reinventing safety infrastructure

Lightweight and composable: chain multiple agents and MCP servers in a single pipeline with minimal boilerplate

First-party OpenAI support ensures optimal compatibility with GPT models for tool calling and structured output

JustCall + OpenAI Agents SDK Use Cases

Practical scenarios where OpenAI Agents SDK combined with the JustCall MCP Server delivers measurable value.

Automated workflows: build agents that query JustCall, process the data, and trigger follow-up actions autonomously

Multi-agent orchestration: create specialist agents. one queries JustCall, another analyzes results, a third generates reports

Data enrichment pipelines: stream data through JustCall tools and transform it with OpenAI models in a single async loop

Customer support bots: agents query JustCall to resolve tickets, look up records, and update statuses without human intervention

Example Prompts for JustCall in OpenAI Agents SDK

Ready-to-use prompts you can give your OpenAI Agents SDK agent to start working with JustCall immediately.

"Show today's call log and send a follow-up SMS to the last caller."

"List all agents, their call volumes, and available phone numbers."

"Show call recordings from this week and the contact database."

Troubleshooting JustCall MCP Server with OpenAI Agents SDK

Common issues when connecting JustCall to OpenAI Agents SDK through Vinkius, and how to resolve them.

MCPServerStreamableHttp not found

Ensure you have the latest version: pip install --upgrade openai-agents

Agent not calling tools

Make sure your prompt explicitly references the task the tools can help with.

JustCall + OpenAI Agents SDK FAQ

Common questions about integrating JustCall MCP Server with OpenAI Agents SDK.

How does the OpenAI Agents SDK connect to MCP?

Use MCPServerSse(url=...) to create a server connection. The SDK auto-discovers all tools and makes them available to your agent with full type information.