How to connect DeepSeek to Cursor

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How to integrate DeepSeek MCP with Cursor

Cursor is one of the leading AI-powered code editors. It is built to help developers write, understand, and refactor code faster with AI assistance built directly into the editor.

And in this guide, I will explain the easiest and most secure way to connect your DeepSeek account to Cursor via Composio Connect, so it can summarize latest AI research news, generate chatbot response for user query, search documents for cybersecurity trends, and more without ever putting your account credentials at risk.

Also integrate DeepSeek with

Why Composio?

  • 1,000+ SaaS toolkits out of the box. Skip the work of building and maintaining integrations, Composio gives you instant access to a vast catalog of pre-built connectors.
  • One MCP server for every app. Connect any of your applications on demand through a single endpoint, rather than juggling a separate server for each app.
  • Smart, context-aware tool loading. Unlike traditional MCP servers that dump every available tool into the LLM context window, Composio searches for and loads only the tools relevant to the task at hand. A remote CLI workbench lets LLMs compose these tools into workflows for complex automation.

Connect DeepSeek to Cursor

Two ways to install — pick whichever you prefer.

1. Install with one click

Click the button below to add Composio to Cursor.

↗Install in Cursor

2. Or add manually

Add to your Cursor mcp.json

Open .cursor/mcp.json in your project root (or ~/.cursor/mcp.json for global config) and add the following configuration:

bash
{
  "servers": {
    "composio": {
      "type": "http",
      "url": "https://connect.composio.dev/mcp"
    }
  }
}

3. Authorize

Restart Cursor, then click "Connect" next to Composio in MCP Tools settings.

Cursor MCP Tools settings with Connect button next to Composio

A browser window will open to authorize.

Composio authorization browser window

Connect your DeepSeek account

Back in Cursor, ask the agent to connect to DeepSeek or give it any DeepSeek-related task.

For example, ask it to:

  • "Summarize latest AI research news"
  • "Generate chatbot response for user query"
  • "Search documents for cybersecurity trends"

It will prompt you to authenticate and authorize access to DeepSeek.

That is it. Composio tools are now available in Cursor, and your DeepSeek account is ready to use.

Supported Tools & Triggers

Tools
Create Anthropic MessageTool to create a model response using DeepSeek's Anthropic-compatible API format with support for system prompts, tool calling, streaming, and thinking mode.
Create Chat CompletionTool to create a chat completion using DeepSeek models (deepseek-chat or deepseek-reasoner).
Get User BalanceTool to get user's current account balance including granted and topped-up balances with detailed breakdown by currency (CNY or USD).
List ModelsTool to list currently available DeepSeek models and provides basic information about each one such as the owner and availability.

Conclusion

You have successfully connected DeepSeek to Cursor using Composio Connect. Your agent can now use DeepSeek securely without exposing credentials in prompts or local scripts.

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FAQ

What are the differences in Tool Router MCP and DeepSeek MCP?

With a standalone DeepSeek MCP server, the agents and LLMs can only access a fixed set of DeepSeek tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from DeepSeek and many other apps based on the task at hand, all through a single MCP endpoint.

Can I use Tool Router MCP with Cursor?

Yes, you can. Cursor fully supports MCP integration. You get structured tool calling, message history handling, and model orchestration while Tool Router takes care of discovering and serving the right DeepSeek tools.

Can I manage the permissions and scopes for DeepSeek while using Tool Router?

Yes, absolutely. You can configure which DeepSeek scopes and actions are allowed when connecting your account to Composio. You can also bring your own OAuth credentials or API configuration so you keep full control over what the agent can do.

How safe is my data with Composio Tool Router?

All sensitive data such as tokens, keys, and configuration is fully encrypted at rest and in transit. Composio is SOC 2 Type 2 compliant and follows strict security practices so your DeepSeek data and credentials are handled as safely as possible.

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