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Submail / 赛邮云 MCP Server for Cursor 8 tools — connect in under 2 minutes

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Cursor is an AI-first code editor built on VS Code that integrates LLM-powered coding assistance directly into the development workflow. Its Agent mode enables autonomous multi-step coding tasks, and MCP support lets agents access external data sources and APIs during code generation.

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Classic Setup·json
{
  "mcpServers": {
    "submail": {
      "url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
    }
  }
}
Submail / 赛邮云
Fully ManagedVinkius Servers
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High SecurityEnterprise-grade
IAMAccess control
EU AI ActCompliant
DLPData protection
V8 IsolateSandboxed
Ed25519Audit chain
<40msKill switch
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 Submail / 赛邮云 MCP Server

Empower your AI agent to orchestrate your multi-channel communications with Submail (赛邮云), the premier cloud communication platform in China. By connecting Submail to your agent, you transform complex SMS broadcasting, HTML email sending, and voice-to-speech notifications into a natural conversation. Your agent can instantly send transactional messages, calculate remaining credit balances, and coordinate verify-by-voice calls without you ever needing to navigate the comprehensive Submail Management Console. Whether you are managing user alerts or coordinating automated verification flows, your agent acts as a real-time communication coordinator, providing accurate and fast results from a single, authorized source.

Cursor's Agent mode turns Submail / 赛邮云 into an in-editor superpower. Ask Cursor to generate code using live data from Submail / 赛邮云 and it fetches, processes, and writes. all in a single agentic loop. 8 tools appear alongside file editing and terminal access, creating a unified development environment grounded in real-time information.

What you can do

  • Multi-Channel Orchestration — Send SMS, HTML emails, and voice notifications from a single agent interface.
  • Template Automation — Utilize project-based templates (XSend) with custom variables for dynamic messaging.
  • Verification Management — Trigger voice verification codes and monitor real-time delivery status.
  • Credit Auditing — Query remaining balances for SMS, Mail, and Voice credits to ensure service continuity.
  • Operational Monitoring — Verify API connectivity and AppID configurations to maintain system-wide health.

The Submail / 赛邮云 MCP Server exposes 8 tools through the Vinkius. Connect it to Cursor in under two minutes — no API keys to rotate, no infrastructure to provision, no vendor lock-in. Your configuration, your data, your control.

How to Connect Submail / 赛邮云 to Cursor via MCP

Follow these steps to integrate the Submail / 赛邮云 MCP Server with Cursor.

01

Open MCP Settings

Press Cmd+Shift+P (macOS) or Ctrl+Shift+P (Windows/Linux) → search "MCP Settings"

02

Add the server config

Paste the JSON configuration above into the mcp.json file that opens

03

Save the file

Cursor will automatically detect the new MCP server

04

Start using Submail / 赛邮云

Open Agent mode in chat and ask: "Using Submail / 赛邮云, help me...". 8 tools available

Why Use Cursor with the Submail / 赛邮云 MCP Server

Cursor AI Code Editor provides unique advantages when paired with Submail / 赛邮云 through the Model Context Protocol.

01

Agent mode turns Cursor into an autonomous coding assistant that can read files, run commands, and call MCP tools without switching context

02

Cursor's Composer feature can generate entire files using real-time data fetched through MCP. no copy-pasting from external dashboards

03

MCP tools appear alongside built-in tools like file reading and terminal access, creating a unified agentic environment

04

VS Code extension compatibility means your existing workflow, keybindings, and extensions all work alongside MCP tools

Submail / 赛邮云 + Cursor Use Cases

Practical scenarios where Cursor combined with the Submail / 赛邮云 MCP Server delivers measurable value.

01

Code generation with live data: ask Cursor to generate a security report module using live DNS and subdomain data fetched through MCP

02

Automated documentation: have Cursor query your API's tool schemas and generate TypeScript interfaces or OpenAPI specs automatically

03

Infrastructure-as-code: Cursor can fetch domain configurations and generate corresponding Terraform or CloudFormation templates

04

Test scaffolding: ask Cursor to pull real API responses via MCP and generate unit test fixtures from actual data

Submail / 赛邮云 MCP Tools for Cursor (8)

These 8 tools become available when you connect Submail / 赛邮云 to Cursor via MCP:

01

get_mail_balance

Get Mail credits balance

02

get_sms_balance

Get SMS credits balance

03

get_voice_balance

Get Voice credits balance

04

send_mail

Send Email

05

send_sms

Send SMS message

06

send_template_sms

Send template SMS (XSend)

07

send_voice

Send Voice notification

08

send_voice_verify

Send Voice verification code

Example Prompts for Submail / 赛邮云 in Cursor

Ready-to-use prompts you can give your Cursor agent to start working with Submail / 赛邮云 immediately.

01

"Send a standard SMS to '13800138000' with content 'Your package has arrived'."

02

"Check my current account balance for Mail and Voice credits."

03

"Send a voice verification code '1234' to '13800138000'."

Troubleshooting Submail / 赛邮云 MCP Server with Cursor

Common issues when connecting Submail / 赛邮云 to Cursor through the Vinkius, and how to resolve them.

01

Tools not appearing in Cursor

Ensure you are in Agent mode (not Ask mode). MCP tools only work in Agent mode.
02

Server shows as disconnected

Check Settings → Features → MCP and verify the server status. Try clicking the refresh button.

Submail / 赛邮云 + Cursor FAQ

Common questions about integrating Submail / 赛邮云 MCP Server with Cursor.

01

What is Agent mode and why does it matter for MCP?

Agent mode is Cursor's autonomous execution mode where the AI can perform multi-step tasks: reading files, editing code, running terminal commands, and calling MCP tools. Without Agent mode, Cursor operates in a simpler ask-and-answer mode that doesn't support tool calling. Always ensure you're in Agent mode when working with MCP servers.
02

Where does Cursor store MCP configuration?

Cursor looks for MCP server configurations in a mcp.json file. You can configure servers at the project level (.cursor/mcp.json in your project root) or globally (~/.cursor/mcp.json). Project-level configs take precedence.
03

Can Cursor use MCP tools in inline edits?

No. MCP tools are only available in Agent mode through the chat panel. Inline completions and Tab suggestions do not trigger MCP tool calls. This is by design. tool calls require user visibility and approval.
04

How do I verify MCP tools are loaded?

Open Settings → Features → MCP and look for your server name. A green indicator means the server is connected. You can also check Agent mode's available tools by clicking the tools dropdown in the chat panel.

Connect Submail / 赛邮云 to Cursor

Get your token, paste the configuration, and start using 8 tools in under 2 minutes. No API key management needed.