MCP server in n8n for AI-triggered SMS and voice…

This automation template turns n8n into an MCP server, allowing external AI agents to trigger SMS and voice message delivery via the sms77 API. Designed for seamless integration with LangChain and other AI frameworks.

## Who it´s for
- AI agent developers integrating external communication channels
- Automation engineers connecting AI systems to business processes
- Teams building MCP-compatible servers for LangChain or similar frameworks
- SaaS products adding AI tool support via standardized MCP interface

## What the automation does
- Receives HTTP requests from AI agents via webhook
- Interprets commands to send SMS or initiate voice calls
- Extracts parameters (phone number, message text, type) using $fromAI() expressions
- Constructs valid API requests to sms77
- Returns execution status back to the AI agent with error handling

## What´s included
- Ready-to-use n8n workflow with MCP interface support
- Logic for processing HTTP triggers and AI tool calls
- Integration with sms77 and data routing templates
- Basic setup and testing instructions

## Requirements for setup
- n8n instance with workflow editing access
- Active sms77 account and API key
- External AI agent (e.g., LangChain-based) capable of making tool calls
- Ability to configure HTTP webhooks in n8n

## Benefits and outcomes
- Accelerates integration of AI agents with communication channels
- Standardizes interaction via the MCP protocol
- Eliminates manual processing of messaging commands
- Ensures reliable delivery with logging and error handling
- Supports both SMS and voice calls through a single interface
- Enables scalable AI-driven communications without code rewrites

## Important: template only
Important: you are purchasing a ready-made automation workflow template only. Rollout into your infrastructure, connecting specific accounts and services, 1:1 setup help, custom adjustments for non-standard stacks and any consulting support are provided as a separate paid service at an individual rate. To discuss custom work or 1:1 help, contact via Telegram: @gleb923.