Email, SMS and marketing automation: campaigns, contacts, automations and stats from Claude.
Connect Remote server
claude mcp add --transport http send16 https://mcp.send16.com --header "Authorization: Bearer <YOUR_API_KEY>"
{
"mcpServers": {
"send16": {
"url": "https://mcp.send16.com",
"headers": {
"Authorization": "Bearer <YOUR_API_KEY>"
}
}
}
}
{
"servers": {
"send16": {
"type": "http",
"url": "https://mcp.send16.com",
"headers": {
"Authorization": "Bearer <YOUR_API_KEY>"
}
}
}
}
Settings > Connectors > Add custom connector
URL: https://mcp.send16.com
Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.
Tools
This server asks for a key before it lists its tools. Connect it with your own key to see them.
Headers
| Name | Description |
|---|---|
AuthorizationRequired, secret | Your Send16 API key as 'Bearer sk_live_...' (Settings > API keys in Send16; the free plan works). |
Details
| Endpoint | https://mcp.send16.com (Streamable HTTP) |
| First published | 28 Oct 2026 |
| Last updated | 28 Oct 2026 |
| Registry name | com.send16/send16 |
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