How to Use the 42Crunch MCP in OpenAI Agents SDK

Q: What happens if an API fails the conformance scan?

The agent reads the failure state from getscanreport. Depending on the guardrails you configured, it can either flag the build or pull the API down entirely.

Build production-grade API security workflows using 42Crunch and the OpenAI Agents SDK.

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Connect 42Crunch MCP to OpenAI Agents SDK

Create your Vinkius account to connect 42Crunch to OpenAI Agents SDK and route execution through our secure gateway. The platform manages server hosting, runtime updates, and security layers. Configuration requires no manual server provisioning.

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Setup 42Crunch with OpenAI Agents SDK

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Run 42Crunch Audits via MCP Server

The `trigger_audit` tool forces a fresh static security check on your OpenAPI definitions directly from your OpenAI agent. You get immediate feedback when a specification updates, without leaving your deployment pipeline. Production agents need strict boundaries. By wrapping this MCP server in native guardrails, you ensure the agent only runs audits on approved collections before attempting to read the results with `get_audit_report`.

Map Your API Inventory

Using `list_collections` and `list_apis` lets your agent automatically map out every endpoint currently tracked in the platform. It pulls unique IDs and baseline security scores for the entire workspace. Handoffs become much easier when specialized agents know exactly what they are looking at. One agent can find a vulnerable endpoint, grab its details via `get_api`, and pass that exact context to a remediation agent.

Dynamic Scan Execution

Fetching live test results happens through the `get_scan_report` and `list_scans` tools. Your agent pulls raw conformance data showing exactly how the live API behaved against malicious payloads. Tracing these actions in the OpenAI dashboard shows exactly which payloads failed. You can even wire up an agent to `delete_api` if a critical vulnerability gets detected during the conformance check.

Setup guide

Set up 42Crunch 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 42Crunch tools at runtime.
3

Create your Agent

Pass the MCP to Agent(mcp_servers=[server]). The agent receives 42Crunch tools as native definitions — JSON schemas resolve automatically.
4

Run the agent

Call Runner.run(agent, prompt) to execute. The agent invokes the appropriate 42Crunch 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="42Crunch Agent",
            instructions="You have access to 42Crunch tools.",
            mcp_servers=[server],
        )
        result = await Runner.run(agent, "List recent transactions")
        print(result.final_output)

asyncio.run(main())

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Common questions about 42Crunch MCP in OpenAI Agents SDK

Install the package via pip install openai-agents. Initialize MCPServerStreamableHttp with your Vinkius URL and pass it to the Agent constructor using mcp_servers=[server]. The agent handles tool discovery automatically.

Yes, set cacheToolsList=True in your server parameters. This drops the initialization latency when your agent boots up, keeping your production workflows fast.

You can easily split the workload. Have one agent run imports via import_api, then hand off the resulting ID to a specialized security agent that triggers the actual audits.

The agent reads the failure state from get_scan_report. Depending on the guardrails you configured, it can either flag the build or pull the API down entirely.

Vinkius runs the connection inside an ephemeral V8 Isolate Sandbox. Your OpenAPI definitions and security scores pass through a zero-trust tunnel directly to the provider, leaving zero persistent traces on our infrastructure.

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