Vinkius
Submail

Submail MCP for AI. Orchestrate SMS, Email, and Voice in One Chat.

Claude Claude
ChatGPT ChatGPT
Cursor Cursor
Gemini Gemini
Windsurf Windsurf
VS Code VS Code
JetBrains JetBrains
Vercel Vercel
See Vinkius in Action

Works with every AI agent you already use

…and any MCP-compatible client

Submail / 赛邮云 MCP on Cursor AI Code EditorSubmail / 赛邮云 MCP on Claude Desktop AppSubmail / 赛邮云 MCP on OpenAI Agents SDKSubmail / 赛邮云 MCP on Visual Studio CodeSubmail / 赛邮云 MCP on GitHub Copilot AI AgentSubmail / 赛邮云 MCP on Google Gemini AISubmail / 赛邮云 MCP on Lovable AI DevelopmentSubmail / 赛邮云 MCP on Mistral AI AgentsSubmail / 赛邮云 MCP on Amazon AWS Bedrock

Connect to your AI in seconds.

Submail / 赛邮云 is an MCP Server that lets your AI agent manage multi-channel communications—SMS, email, and voice calls—from a single conversation window.

It handles everything from checking credit balances (`get_sms_balance`) to sending template messages or initiating automated voice verification codes. Stop switching between consoles; let your agent coordinate all transactional messaging in one place.

What your AI can do

Get mail balance

Checks your current available balance for email credits.

Get sms balance

Checks your remaining quota for SMS messages.

Get voice balance

Retrieves the current credit balance for voice notifications and calls.

+ 5 more capabilities included
Manage Multi-Channel Messaging

The agent sends transactional messages across SMS, Email, and Voice channels using a single command.

Audit Communication Credits

You check the remaining quotas for email, SMS, or voice calls before initiating any send operation (e.g., calling get_mail_balance).

Send Template-Driven Messages

The agent executes pre-formatted SMS campaigns using specific variables (send_template_sms) for consistency.

Automate User Verification Calls

You initiate a voice call to deliver a one-time verification code, which the agent can also monitor.

Included with Plan

Waiting for input…

AI Agent

Submail / 赛邮云: 8 Tools for Communication Flow

Use these eight tools to manage every aspect of your communication stack—from checking credit quotas to sending complex, multi-channel alerts.

Make your AI actually useful.

Add this MCP to Claude, Cursor, or Windsurf and your AI stops guessing. It gets real tools to look things up, take action, and handle the stuff you keep doing by hand.

Start using Submail / 赛邮云 on Vinkius

Get Mail Balance

Checks your current available balance for email credits.

Get Sms Balance

Checks your remaining quota for SMS messages.

Get Voice Balance

Retrieves the current credit balance for voice notifications and calls.

Send Mail

Sends a standard HTML email message to a recipient.

Send Sms

Sends a standard text SMS message directly to a phone number.

Send Template Sms

Sends an SMS using a predefined template (XSend) and custom variables.

Send Voice

Initiates a standard voice notification call to the user's number.

Send Voice Verify

Triggers an automated phone call specifically designed to deliver a verification...

Security and governance baked right in.

Pick your AI client below to get set up. Just create a Vinkius account, subscribe, and you're instantly up and running. We handle the entire backend infrastructure, delivering out-of-the-box support for HTTPS Streamable, SSE, and OAuth2—zero messy routing required.

Claude AI

Claude AI

1

Open Claude Settings

Go to claude.ai, click your profile icon, then navigate to Customize → Connectors.

2

Add Custom Connector

Click the "+" button and select Add custom connector. Paste your Vinkius endpoint URL:

https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp

Replace [YOUR_TOKEN_HERE] with your token from cloud.vinkius.com. For OAuth-protected servers, expand Advanced settings to add credentials.

3

Start a conversation

Open a new chat. The Submail integration is available immediately — no restart needed.

Choose How to Get Started

Build a custom MCP for your own tools, or connect a ready-made integration from our catalog.

Build Your Own

Turn any API into an MCP. Import a spec, define Agent Skills, or deploy with MCPFusion.

  • Import from OpenAPI, Swagger, or YAML specs
  • Create Agent Skills with progressive disclosure
  • Deploy to edge with MCPFusion framework
  • Built in DLP, auth, and compliance on every call
  • Real time usage dashboard and cost metering
  • Publish to catalog or keep private
Start building

Make Your AI Do More

Start with Submail / 赛邮云, then connect any of our 5,000+ other servers whenever your AI needs more. One click, no limits.

  • Use this MCP plus 5,000+ others, all in one place
  • Add new capabilities to your AI anytime you want
  • Every connection is secured and compliant automatically
  • Track usage and costs across all your servers
  • Works with Claude, ChatGPT, Cursor, and more
  • New servers added to the catalog every week
Submail MCP server cover

Independent Platform Disclaimer: Vinkius is an independent platform and is not affiliated with, endorsed by, sponsored by, verified by, or otherwise authorized by Submail / 赛邮云. 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.

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Sandboxed per request

Zero-Trust Proxy

No stored credentials

DLP Enforced

Policy on every call

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EU data residency

Token Compression

~60% cost reduction

Your data is protected. See how we built it.

Works with Claude, ChatGPT, Cursor, and more

The Model Context Protocol standardizes how applications expose capabilities to LLMs. Instead of operating in isolation, your AI gains direct access to external platforms, live data, and real-world actions through secure, standardized connections.

This connection provides 8 powerful capabilities that interface natively with Claude, ChatGPT, Cursor, and other compatible AI platforms. No middleware. No custom integration required.

Manual communication checks slow down operations.

Today, coordinating a simple message flow means jumping between three places: your billing dashboard to check if you have credits; the email console to draft the message; and finally, running the API call in code. You spend time copying IDs, checking balances, and confirming quotas manually.

With Submail MCP Server, that entire sequence collapses into one chat prompt. Ask your agent to send an alert and confirm funds. It runs `get_sms_balance`, confirms availability, then executes `send_sms`. The result is instant, accurate, and all in the conversation log.

Submail MCP Server: Manage message delivery & balance

You eliminate manual calls to web consoles for basic functions. There's no need to copy an AppID into a separate script just to check if you have enough mail credits; simply ask the agent, and it runs `get_mail_balance` instantly.

Your AI client becomes your real-time comms dashboard. You don't just send messages—you manage their lifecycle: checking balances, sending templates via `send_template_sms`, or triggering complex verifications using `send_voice_verify`. It’s all here.

What your AI can actually do with this

This MCP Server lets your agent handle all your communication—SMS, email, and voice calls—from one chat window. You don't gotta jump between different dashboards; your AI client manages everything transactional right where you are.

Before sending anything, you can check your spending limits. To see how much email credit you got left, run get_mail_balance. You wanna know what quota you got for text messages? Use get_sms_balance. If you're doing voice calls, checking the remaining credits is simple with get_voice_balance.

For sending standard messages, your agent handles it across channels. To send a normal HTML email to someone, call send_mail. For basic text alerts, just use send_sms. If you need to initiate a regular automated voice notification call, run send_voice.

When you're running campaigns or need consistency, the agent handles specialized sending. To execute an SMS using a predefined template and custom variables—like for bulk messaging—you use send_template_sms. For critical security steps, triggering a one-time verification code is simple; call send_voice_verify to make that automated phone call.

The whole point is orchestration. Your agent doesn't just send stuff out; it coordinates the entire process. You tell your AI client what needs doing—like checking credits and then sending an alert email, or running a template SMS followed by a verification voice call—and it executes all those steps in sequence, reporting back everything you need to know without you ever leaving the chat.

Built · Hosted · Managed by Vinkius Submail MCP Server - Multi-Channel Messaging Gateway
Server ID 019d8486-9130-7101-9489-b4f353c6db30
Vinkius Inspector
Compliance Grade A+
Score 98.33/100
Vinkius Inspector Badge — Score 98.33/100

Questions you might have

How do I check my email quota using the get_mail_balance tool? +

You simply ask your agent to run get_mail_balance. It immediately queries Submail and returns your current available credit count. This is useful before running any large-scale campaigns with send_mail.

Can I use send_template_sms for a simple alert? +

Yes, you should. While send_sms works, using send_template_sms is better because it lets you reuse pre-approved XSend templates and variables. This keeps your messaging consistent across all campaigns.

What's the difference between send_voice and send_voice_verify? +

send_voice sends a general notification call. send_voice_verify, however, is specifically designed for security purposes; it initiates a call meant solely to deliver a one-time verification code.

Do I need to check my balance before using send_sms? +

It's best practice. Always run get_sms_balance first. This prevents the agent from failing mid-task and tells you exactly which channel needs topping up.

How does the system handle authentication when I use the send_mail tool? +

The agent uses your initial AppID and AppKey to authorize every API call. These credentials are stored securely and prevent you from having to manually input them each time, ensuring only authorized messages get sent.

If I run the send_sms tool and receive an error code, how do I troubleshoot it? +

The response payload includes specific error codes and failure reasons. Your agent reads these details so you know if the issue is invalid credentials or a recipient block.

Can I inject custom data into my message using the send_template_sms tool? +

Yes, you define placeholders within your project template structure. When running the tool, you simply pass key-value pairs that populate those variables instantly, making it highly dynamic.

Beyond checking credit with get_voice_balance, what can I monitor about my voice communication service? +

You can verify API connectivity and AppID configurations. This confirms the entire voice pipeline is active and healthy, not just that credits remain available.

How do I find my Submail AppID and AppKey? +

Log in to the Submail Management Console, navigate to the relevant project type (SMS, Mail, or Voice) and look for the 'AppID' and 'AppKey' in the project settings or credentials section.

Does this server handle MD5 signatures? +

Yes! The server automatically calculates the required MD5 signature for every request using your provided AppKey, ensuring secure authorized communication with Submail APIs.

Can I send template-based SMS? +

Yes! Use the send_template_sms tool. You will need the Project ID of your template and a JSON string containing the variables defined in that template.

Built & Managed by Vinkius 30s setup 8 tools

We've already built the connector for Submail. Just plug in your AI agents and start using Vinkius.

No hosting. No infrastructure. No complex setup.
All 8 tools are live and waiting. You're up and running in seconds.

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