Bring Cpaas
to LangChain
Create your Vinkius account to connect AT&T Messaging to LangChain and start using all 9 AI tools in minutes. Fully managed, enterprise secure, and ready to use without writing a single line of code. No hosting, no server setup — just connect and start using.
GDPR Free for SubscribersCompatible with every major AI agent and IDE
Gemini
What is the AT&T Messaging MCP Server?
Connect your AT&T Messaging account to any AI agent and take full control of your SMS/MMS communication workflows through natural conversation.
What you can do
- SMS Messaging -- Send transactional alerts, OTPs, and customer notifications from registered shortcodes with delivery tracking
- MMS Messaging -- Attach images, videos, or audio to enrich marketing campaigns and visual alerts
- Bulk Send -- Broadcast the same message to hundreds of recipients in one request with per-recipient status tracking
- Delivery Status -- Check real-time delivery state (sent, delivered, failed, read) for any message by its ID
- Message History -- Query outbound and inbound message logs for auditing, compliance reporting, or reply tracking
- Inbound Messages -- Retrieve customer replies, opt-outs, and keyword-triggered auto-responses
- Shortcode Management -- Provision new shortcodes with keywords for campaign routing, or decommission retired numbers
- Keyword Responses -- Review configured auto-reply logic for shortcode keywords to verify opt-in/opt-out flows
How it works
- Subscribe to this server
- Enter your AT&T Messaging API Key and API Secret
- Start sending messages and managing campaigns from Claude, Cursor, or any MCP-compatible client
No more bouncing between the AT&T Messaging dashboard and your CRM. Your AI agent becomes your messaging command center.
Who is this for?
- Marketing Teams -- launch SMS/MMS campaigns, monitor keyword engagement, and manage shortcodes for different brands
- DevOps Engineers -- trigger mass alert broadcasts, track delivery rates, and debug failed sends
- Customer Support -- review inbound customer messages, process STOP/START commands, and send order updates
- Compliance Officers -- audit full message history with timestamps, directions, and content snippets
Built-in capabilities (9)
Returns provisioning status and activation timeline. Use for new marketing campaigns or service alerts. Provision a new messaging shortcode with a keyword
Use when retiring a campaign or transferring numbers. Decommission a messaging shortcode
Returns sender number, keyword matched, message body, and timestamp. Use for monitoring customer engagement or processing STOP/START commands. Retrieve recent inbound SMS/MMS from customers
Use to review campaign logic or verify opt-in/opt-out flows. Get configured auto-replies for shortcode keywords
Use to track campaign performance or debug failed sends. Check delivery status of a specific message
Returns timestamps, sender, recipient, and content snippets. Use for auditing, compliance reporting, or reply tracking. List outbound or inbound messaging history
164 numbers. Returns job ID and per-recipient status array. Use for mass alerts, emergency broadcasts, or promotional campaigns. Send SMS to multiple recipients in one request
Requires sender, recipient, message text, and media URL. Use for rich marketing campaigns, product images, or visual alerts. Send an MMS message with media attachment
Requires sender ID, recipient E.164 number, and message body. Returns message ID and delivery status. Use this for transactional alerts, OTPs, or customer notifications. Send a single SMS message to a phone number
Why LangChain?
LangChain's ecosystem of 500+ components combines seamlessly with AT&T Messaging through native MCP adapters. Connect 9 tools via Vinkius and use ReAct agents, Plan-and-Execute strategies, or custom agent architectures. with LangSmith tracing giving full visibility into every tool call, latency, and token cost.
- —
The largest ecosystem of integrations, chains, and agents. combine AT&T Messaging MCP tools with 500+ LangChain components
- —
Agent architecture supports ReAct, Plan-and-Execute, and custom strategies with full MCP tool access at every step
- —
LangSmith tracing gives you complete visibility into tool calls, latencies, and token usage for production debugging
- —
Memory and conversation persistence let agents maintain context across AT&T Messaging queries for multi-turn workflows
AT&T Messaging in LangChain
Why run AT&T Messaging with Vinkius?
The AT&T Messaging connection runs on our fully managed, secure cloud infrastructure. We handle the hosting, maintenance, and security so you don't have to deal with servers or code. All 9 tools are ready to work instantly without any complex setup.
You stay in complete control of your data. Your AI only accesses the information you approve, keeping your sensitive passwords and private details completely safe. Plus, with automatic optimizations, your AI works faster and more efficiently.
* Every connection is hosted and maintained by Vinkius. We handle the security, updates, and infrastructure so you don't have to write code or manage servers. See our infrastructure
Over 4,000 integrations ready for AI agents
Explore a vast library of pre-built integrations, optimized and ready to deploy.
Connect securely in under 30 seconds
Generate tokens to authenticate and link external services in a single step.
Complete visibility into every agent action
Audit live requests, latency, success rates, and active security compliance policies.
Optimize spending and track token ROI
Analyze real-time token consumption and cost metrics detailed by connection.
Explore our live AI Agents Analytics dashboard to see it all working
This dashboard is included when you connect AT&T Messaging using Vinkius. You will never be left in the dark about what your AI agents are doing with your tools.
AT&T Messaging and 4,000+ other AI tools. No hosting, no code, ready to use.
Professionals who connect AT&T Messaging to LangChain through Vinkius don't need to write code, manage servers, or worry about security. Everything is pre-configured, secure, and runs automatically in the background.
Raw MCP | Vinkius | |
|---|---|---|
| Ready-to-use MCPs | Find and configure each manually | 4,000+ MCPs ready to use |
| Connection Setup | Manual coding & server setup | 1-click instant connection |
| Server Hosting | You host it yourself (needs 24/7 uptime) | 100% hosted & managed by Vinkius |
| Security & Privacy | Stored in plaintext config files | Bank-grade encrypted vault |
| Activity Visibility | Blind execution (no logs or tracking) | Live dashboard with real-time logs |
| Cost Control | Runaway AI token spend risk | Automatic budget limits |
| Revoking Access | Must delete files or code to stop | 1-click disconnect button |
How Vinkius secures
AT&T Messaging for LangChain
Every request between LangChain and AT&T Messaging is protected by our secure gateway. We automatically keep your sensitive data private, prevent unauthorized access, and let you disconnect instantly at any time.
Frequently asked questions
What sender IDs can I use to send SMS messages?
You must use a registered AT&T shortcode or dedicated long code as the sender ID. Unregistered or random numbers will be rejected by the carrier. You can provision new shortcodes with keywords using the create_shortcode tool, or check your existing ones through the messaging dashboard. Each shortcode can be configured with multiple keyword auto-responses.
Can I send MMS with images and what formats are supported?
Yes. The send_mms tool accepts a publicly accessible media URL. Supported formats include JPEG, PNG, GIF for images, MP4 for video, and common audio formats. The media URL must be reachable by AT&T's servers -- local or private URLs will fail. Maximum file size limits apply per carrier specifications, typically up to 1MB for images and 3.5MB for video.
How do I handle customer opt-out requests like STOP?
AT&T Messaging automatically processes standard opt-out keywords (STOP, CANCEL, UNSUBSCRIBE, QUIT). When a customer sends one of these, they are added to your suppression list and will no longer receive messages from that shortcode. You can monitor inbound messages with get_inbound_messages to track opt-out activity and verify your keyword configuration with get_keyword_responses.
How does LangChain connect to MCP servers?
Use langchain-mcp-adapters to create an MCP client. LangChain discovers all tools and wraps them as native LangChain tools compatible with any agent type.
Which LangChain agent types work with MCP?
All agent types including ReAct, OpenAI Functions, and custom agents work with MCP tools. The tools appear as standard LangChain tools after the adapter wraps them.
Can I trace MCP tool calls in LangSmith?
Yes. All MCP tool invocations appear as traced steps in LangSmith, showing input parameters, response payloads, latency, and token usage.
MultiServerMCPClient not found
Install: pip install langchain-mcp-adapters
Explore More MCP Servers
View all →
Extracta
10 toolsAutomate data extraction via Extracta — process documents into structured JSON, handle AI classification, and audit extraction history directly from any AI agent.
SimplyBook.me
10 toolsEnable your AI agent to manage appointments, browse staff calendars, and handle client records via the SimplyBook.me scheduling platform.
ClickFunnels
8 toolsManage sales funnels and contacts via ClickFunnels 2.0 — track performance, monitor leads, and manage orders directly from any AI agent.
ClientSuccess
8 toolsManage customer success and retention via ClientSuccess — track client health, monitor subscriptions, and manage success cycles directly from any AI agent.