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engagelab-sms-mcp

by DevEngageLab
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Python
Remote

engagelab-sms-mcp

An MCP server that lets AI assistants send SMS messages through EngageLab.

Add it to your MCP client (Cursor, Claude Desktop, etc.) and the AI can send template-based SMS on your behalf.

Prerequisites

  • Node.js 18+

  • An EngageLab account with SMS API credentials (dev_key and dev_secret)

  • At least one approved SMS template in your EngageLab console

Related MCP server: Twilio MCP Server

Quick Start

Cursor

Go to Settings > MCP, click Add new MCP server, and paste:

{
  "mcpServers": {
    "engagelab-sms": {
      "command": "npx",
      "args": ["-y", "engagelab-sms-mcp"],
      "env": {
        "ENGAGELAB_DEV_KEY": "<your_dev_key>",
        "ENGAGELAB_DEV_SECRET": "<your_dev_secret>"
      }
    }
  }
}

Claude Desktop

Open Settings > Developer > Edit Config and add to mcpServers:

{
  "mcpServers": {
    "engagelab-sms": {
      "command": "npx",
      "args": ["-y", "engagelab-sms-mcp"],
      "env": {
        "ENGAGELAB_DEV_KEY": "<your_dev_key>",
        "ENGAGELAB_DEV_SECRET": "<your_dev_secret>"
      }
    }
  }
}

Other MCP Clients

Any MCP client that supports stdio transport can use this server. Point the command to npx -y engagelab-sms-mcp and pass the two required environment variables.

Available Tools

send_sms

Send SMS messages through EngageLab using a pre-approved template.

Input:

Field

Type

Required

Description

to

string[]

Yes

Target phone numbers (international format recommended, e.g. +8618700001111)

template.id

string

Yes

Approved EngageLab SMS template ID

template.params

object

Yes

Template variable values, e.g. {"code": "123456"}

Example input:

{
  "to": ["+8618700001111"],
  "template": {
    "id": "your-template-id",
    "params": {
      "code": "123456"
    }
  }
}

Output:

Field

Type

Description

success

boolean

Whether the request was accepted

plan_id

string

EngageLab plan ID for tracking

total_count

number

Total recipients submitted

accepted_count

number

Recipients accepted for delivery

message_id

string

Message identifier (if available)

message

string

Status or error description

code

number

EngageLab response code (0 = success)

Environment Variables

Variable

Required

Default

Description

ENGAGELAB_DEV_KEY

Yes

—

Your EngageLab dev key

ENGAGELAB_DEV_SECRET

Yes

—

Your EngageLab dev secret

ENGAGELAB_BASE_URL

No

https://smsapi.engagelab.com

API base URL

ENGAGELAB_REQUEST_TIMEOUT_MS

No

10000

Request timeout in milliseconds

ENGAGELAB_MAX_RETRIES

No

1

Max retry attempts for transient failures

Troubleshooting

Server fails to start with "Missing required environment variable"

  • Make sure both ENGAGELAB_DEV_KEY and ENGAGELAB_DEV_SECRET are set in the env block of your MCP client config.

send_sms returns error code 3002 ("invalid template id format")

  • Check that your template ID matches an approved template in the EngageLab console.

send_sms returns error code related to template params

  • Verify that template.params keys match the variable names defined in your EngageLab template.

SMS not received

  • Use international phone number format (e.g. +8618700001111).

  • Confirm the template is approved and not suspended.

Links

License

MIT

This server cannot be installed

A
license - permissive license
-
quality - not tested
D
maintenance

How are these scores calculated?

Maintenance

–Maintainers
–Response time
–Release cycle
–Releases (12mo)
Commit activity

Resources

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