How to Use the Cosmic MCP in OpenAI Agents SDK

Q: Can my OpenAI Agents SDK system handle schema changes in Cosmic?

Yes, it does this naturally. The agent runs listschematypes to inspect your active fields, meaning it adapts to any schema modifications you make inside your Cosmic dashboard.

Q: How does OpenAI Agents SDK handle Cosmic media limits?

The agent uses listuploadedmedia to inspect internal arrays. It can programmatically track how close you are to your plan limits and flag large assets for removal.

Put your Cosmic CMS on autopilot with OpenAI Agents SDK to safely edit schemas and draft content with built-in guardrails.

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Connect Cosmic MCP to OpenAI Agents SDK

Create your Vinkius account to connect Cosmic 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 Cosmic with OpenAI Agents SDK

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Safe content drafts with OpenAI Agents SDK

Your OpenAI Agents SDK setup can safely write to your Cosmic bucket without risking messy database errors. By calling `create_cms_object` and `patch_cms_object`, the agent drafts new JSON payloads or edits existing ones while the SDK's built-in guardrails validate the payload structures before hitting your live environment. If an agent tries to execute a destructive action like `wipe_cms_object`, you can set up a manual gate to block it. This keeps your Cosmic headless content clean and ensures no autonomous OpenAI agent deletes critical drafts without explicit human approval.

Structured schema discovery via Cosmic MCP Server

Stop hardcoding content types into your agent prompts. The Cosmic MCP Server lets your OpenAI Agents SDK scan your entire headless setup dynamically using `list_schema_types` to see what fields are actually available. Once it knows the layout, the agent queries `get_schema_details` to pull specific properties. Your Python agents in the OpenAI Agents SDK can hand off tasks to specialized sub-agents that only focus on specific content types, matching the exact rules of your Cosmic bucket.

Intelligent media management and audits

It's a pain to handle images in a headless CMS. This integration gives your OpenAI Agents SDK direct eyes on your Cosmic assets through `list_uploaded_media`, allowing it to audit what files are clogging up your storage. The agent can retrieve metadata with `get_media_asset` to verify image dimensions or clean up abandoned files using `wipe_media_asset`. You'll get a lean Cosmic media library without writing custom file-handling scripts in your OpenAI Agents SDK.

Setup guide

Set up Cosmic 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 Cosmic tools at runtime.
3

Create your Agent

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

Run the agent

Call Runner.run(agent, prompt) to execute. The agent invokes the appropriate Cosmic 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="Cosmic Agent",
            instructions="You have access to Cosmic 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 Cosmic MCP in OpenAI Agents SDK

Run pip install openai-agents in your terminal. After that, initialize the MCPServerStreamableHttp using your Vinkius endpoint and register it in your agent's list of MCP servers.

Yes, it does this naturally. The agent runs list_schema_types to inspect your active fields, meaning it adapts to any schema modifications you make inside your Cosmic dashboard.

Absolutely. When using the OpenAI Agents SDK, you can intercept calls to wipe_cms_object or wipe_media_asset to require manual confirmation before any deletion occurs.

The agent uses list_uploaded_media to inspect internal arrays. It can programmatically track how close you are to your plan limits and flag large assets for removal.

Your JSON payloads and media metadata pass directly through Vinkius's secure, ephemeral V8 sandboxes to your OpenAI Agents SDK. No content drafts or asset IDs are ever stored permanently on the Vinkius platform.

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