MCP Server
Connect Claude, Cursor, and Windsurf directly to Keplars. Send emails, manage contacts, and trigger campaigns through natural language using the Model Context Protocol.
The Keplars MCP Server exposes 15 email operations as Model Context Protocol tools. Any MCP-compatible AI client (Claude Desktop, Cursor, Windsurf) can send emails, manage audiences, and run campaigns by asking in plain English.
No code required
Once connected, your AI client talks to Keplars directly. Ask it to send an email and it handles the API call.
Endpoint
https://mcp.keplars.com/mcpAuthentication
The MCP server uses two separate API keys, each scoped to a different set of tools.
| Header | Key type | Required for |
|---|---|---|
Authorization: <key> | Send key (live_) | Sending emails |
X-Admin-Api-Key: <key> | Admin key (adm_) | Templates, contacts, campaigns, domains |
Get both keys from the Keplars dashboard under API Keys in your workspace settings. You can provide one or both depending on which tools you need.
What you can do
Send Emails
Send transactional, templated, and bulk emails through the priority queue.
Manage Contacts
List audiences, add or remove contacts, and run bulk imports.
Campaigns and Analytics
Create and send campaigns, track delivery stats, and list verified domains.
Connect your AI client
Step-by-step setup for Claude Desktop, Cursor, Windsurf, and other MCP clients.
Quick example
Ask your AI client:
"Send a welcome email to [email protected] with the subject 'Welcome to Acme' and a short greeting"
The AI calls send_transactional_email with the correct payload and returns the delivery confirmation.
All 15 tools at a glance
| Category | Tools |
|---|---|
send_transactional_email, send_bulk_email, send_templated_email | |
| Templates | list_templates, get_template |
| Contacts | list_audiences, get_audience, add_contact, bulk_add_contacts, remove_contact |
| Campaigns | list_campaigns, create_campaign, send_campaign, get_campaign_stats |
| Analytics | list_verified_domains |
See the Tools Reference for full input and output details.
Agent Skills
Install the Keplars skill to give AI coding agents accurate knowledge of the Keplars API so they generate working integration code on the first try.
Claude Desktop Setup
Connect Claude Desktop to Keplars in under two minutes using the MCP Server. Send emails and manage contacts through natural language.