How to Use the FIRE Calculator MCP in OpenAI Agents SDK

Build production-ready retirement agents with the OpenAI Agents SDK and this FIRE Calculator MCP.

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Connect FIRE Calculator MCP to OpenAI Agents SDK

Create your Vinkius account to connect FIRE Calculator to OpenAI Agents SDK — we handle the hosting, security, and runtime updates so you don't have to. No server setup required.

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Setup FIRE Calculator with OpenAI Agents SDK

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Route Retirement Data with OpenAI Agents SDK

This MCP gives your agent direct access to financial independence math. Your primary agent calls `calculate_milestones` to establish the baseline timeline for early retirement. It evaluates the raw numbers before passing the context to a specialized planning agent. Built-in guardrails validate the inputs before execution. You avoid hallucinated math because the agent relies on the actual calculator logic rather than guessing compounding interest formulas.

Ground Target Spending in Reality

Users often underestimate future costs. The `get_lifestyle_targets` function pulls exact capital requirements based on specific annual spending goals. Your agent reads these targets and confronts the user with the actual portfolio size they need to survive. Every calculation logs straight to your OpenAI dashboard. You track exactly which variables the agent tested and how the user responded to the required savings rate.

Model Savings Adjustments Safely

Small changes in monthly savings alter the retirement date by years. Your agent runs `simulate_contribution_impact` to show users the exact month they hit financial independence under different savings scenarios. This MCP enforces strict constraints on these simulations. The deployed product stays on track, giving users hard numbers instead of vague encouragement.

Setup guide

Set up FIRE Calculator MCP in OpenAI Agents SDK

Prerequisites

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

1

Install the SDK

Run pip install openai-agents to install the OpenAI Agents SDK. The MCP integration is built-in — no extra dependencies needed.
2

Connect via SSE transport

Use MCPServerSse with your Vinkius endpoint URL. Replace [YOUR_TOKEN_HERE] with your token from cloud.vinkius.com. The SDK auto-discovers all FIRE Calculator tools at runtime.
3

Create your Agent

Pass the MCP to Agent(mcp_servers=[server]). The agent receives FIRE Calculator tools as native definitions — JSON schemas resolve automatically.
4

Run the agent

Call Runner.run(agent, prompt) to execute. The agent invokes the appropriate FIRE Calculator tools and returns structured results. Copy the full example on the right to get started.

agent.py

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

async def main():
    async with MCPServerSse(
        url="https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
    ) as server:
        agent = Agent(
            name="FIRE Calculator Agent",
            instructions="You have access to FIRE Calculator tools.",
            mcp_servers=[server],
        )
        result = await Runner.run(agent, "List recent transactions")
        print(result.final_output)

asyncio.run(main())

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Independent Platform Disclaimer: Vinkius is an independent platform and is not affiliated with, endorsed by, sponsored by, verified by, or otherwise authorized by FIRE Calculator. 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

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Common questions about FIRE Calculator MCP in OpenAI Agents SDK

Install the package via pip. Create an MCPServerStreamableHttp instance with your Vinkius URL. Pass it into the agent constructor using the mcp_servers list.

Yes. The framework pulls the tool schemas directly from the MCP on startup. Set cacheToolsList to true to speed up the initialization process.

It works perfectly with multiple integrations. You mix these financial functions with external database connections or CRM utilities. The framework handles the routing between them automatically.

The calculator processes the exact inputs provided. Your agent receives the resulting timeline and can challenge the user if the required return rate exceeds historical averages.

The FIRE Calculator processes raw income and expense integers in memory. Vinkius routes these payloads over TLS directly to the isolated container. Nothing persists on disk after the session ends.

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