mailercloud
Connect AI assistants to Mailercloud, the email marketing platform — campaigns, contacts, lists, templates, sending, plus AI campaign analysis and…
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What it can do
- Analyze Campaign: Deep-dive analysis of a single campaign's performance. Returns a letter grade, weighted performance scores vs industry benchmarks, deliverability health assessment, contextual insigh
- Analyze Latest Campaigns: Analyze recent completed campaigns as a batch (default 5, up to 20 via count param). Provides individual grades, overall performance vs industry benchmarks, trends over time,
- Audit Campaign Draft: Pre-send quality audit for a campaign draft. Checks subject line length and spam triggers, sender configuration, list selection, content presence, preheader text, and provides a
What data it sees
Do you need an account
No: the server works without sign-in
Connect AI assistants to Mailercloud, the email marketing platform — campaigns, contacts, lists, templates, sending, plus AI campaign analysis and deliverability insights.
How to connect
How to connect mailercloud to Claude
The server address to paste into Claude settings:
https://mailercloud--mailercloud.run.tools
- Open Claude (claude.ai or the desktop app).
- Go to Settings → Connectors.
- Click Add custom connector.
- Paste the server address copied below into Remote MCP server URL and click Add.
- In a chat, click + → Connectors and switch the new connector on.
Custom connectors are available on Free, Pro, Max, Team and Enterprise plans (Free is limited to one). On Team and Enterprise an organization Owner adds the connector first under Organization settings → Connectors.
Authorization
After you click Add, a sign-in window for the service opens. Sign in with your own account and approve access. Claude never sees your password.
How to connect mailercloud to ChatGPT
The server address to paste into ChatGPT settings:
https://mailercloud--mailercloud.run.tools
- Open ChatGPT in a browser (chatgpt.com). A Plus, Pro, Business, Enterprise or Edu plan is required.
- Turn on developer mode once: Settings → Apps → Advanced settings → Developer mode.
- Open Settings → Connectors and click Create.
- Fill in the form: Name (anything), Description (one line about what the service does), MCP server URL (copy it below).
- Under Authentication choose OAuth if the service requires sign-in, otherwise None. Click Create.
- In a new chat open + → Apps/Connectors and enable the connector.
OpenAI has renamed this section before (Connectors → Apps/Plugins). If the label differs, search settings for "developer mode". On Business/Enterprise workspaces an admin must allow custom connectors first.
Authorization
On first use ChatGPT opens the service's sign-in window. Sign in and approve access.
How to connect mailercloud to Cursor
The server address to paste into Cursor settings:
https://mailercloud--mailercloud.run.tools
Fastest: click Open in Cursor below and confirm the prompt.
Manually:
- In Cursor open Settings → Cursor Settings → MCP and click Add new global MCP server.
- Paste the JSON copied below into
~/.cursor/mcp.json(per project:.cursor/mcp.jsonin the repo root). - Save the file. The server appears in the MCP list; authorize it there if asked.
Authorization
If the service needs sign-in, an authorize button appears next to the server in the MCP list.
Server tool list (47)
Raw names from tools/list. Only developers need these.
| analyze_campaign | Deep-dive analysis of a single campaign's performance. Returns a letter grade, weighted performance scores vs industry benchmarks, deliverability health assessment, contextual insights, and prioritized actionable recommendations to improve future sends. |
| analyze_latest_campaigns | Analyze recent completed campaigns as a batch (default 5, up to 20 via count param). Provides individual grades, overall performance vs industry benchmarks, trends over time, what's working vs needs attention, performance by list, optional cost/ROI context, and a strategic action plan. |
| audit_campaign_draft | Pre-send quality audit for a campaign draft. Checks subject line length and spam triggers, sender configuration, list selection, content presence, preheader text, and provides a pass/fail checklist with specific fix-it recommendations before you hit send. Use this before scheduling any campaign. |
| batch_create_contacts | Create multiple contacts at once in bulk. |
| campaign_health_dashboard | Quick portfolio-level health check across recent campaigns. Returns an at-a-glance dashboard with overall grade, metric status vs benchmarks, what's working vs needs attention, performance trends, and top priority action. Use this for a fast 10-second overview; use analyze_latest_campaigns for deep analysis. |
| compare_campaigns | Side-by-side comparison of two or more campaigns. Shows performance metrics, scores, grades, identifies the winner for each metric, and provides recommendations based on what worked best. |
| create_campaign | Create a new email campaign in MailerCloud. Requires name, subject, and at least one list ID. If sender is not provided, it will be auto-resolved from your verified senders (if only one exists) or you will be prompted to choose. Reply-to defaults to sender email (best practice) — only provide reply_email or reply_id if you need a different reply-to address. |
| create_contact | Create a new contact in a MailerCloud list. Email and list_id are required. |
| create_list | Create a new contact list in MailerCloud. |
| create_tag | Create a new tag for organizing contacts. |
| create_template | Create a new HTML email template. |
| create_webhook | Create a new webhook to receive event notifications. |
| delete_contact | Delete a contact by ID. |
| delete_list | Delete a contact list by ID. |
| delete_webhook | Delete a webhook. |
| engagement_funnel | Visualize the engagement funnel for a sent campaign: total sent → delivered → opened → clicked. Shows conversion rates at each stage, identifies the biggest drop-off point, and provides targeted recommendations to fix the weakest stage of the funnel. |
| get_account_overview | Get account plan details including limits, usage, and subscription information. |
| get_automation | Get details of a specific automation workflow, optionally filtered by node type. |
| get_best_practices | Generate a comprehensive email marketing best practices report based on your actual campaign performance data. Shows your performance vs industry benchmarks, identifies top-performing patterns (subject lines, send times, audience size), highlights improvement areas with specific numbers, and provides prioritized actionable recommendations tailored to your data. |
| get_campaign | Get full details of a specific MailerCloud campaign by ID, including performance metrics. |
| get_campaign_domain_report | Get domain-level performance statistics for a sent campaign. |
| get_contact | Get detailed information about a specific contact by ID. |
| get_inbox_tracking | Get inbox placement tracking data for a date range, optionally filtered by campaign or domain. Helps monitor deliverability across email providers. |
| get_list_details | Get details of a specific contact list including subscriber counts. |
| get_template | Get a template's details and HTML content by ID. |
| get_webhook | Get details of a specific webhook. |
| list_campaigns | List MailerCloud campaigns with pagination. Returns campaign names, IDs, subjects, statuses, and performance metrics. |
| list_contact_lists | List all MailerCloud contact lists with pagination. |
| list_contacts | List contacts in a specific MailerCloud contact list with pagination. |
| list_custom_fields | List all custom contact properties/fields defined in your account. |
| list_reply_emails | List all reply-to email addresses configured in your MailerCloud account. Use the returned IDs when creating campaigns with the reply_id parameter. |
| list_segments | List all audience segments with optional search and sorting. |
| list_senders | List all verified senders in your MailerCloud account. Use the returned sender IDs when creating campaigns with the sender_id parameter. |
| list_tags | List all tags in your MailerCloud account. |
| list_template_categories | List all email template categories in MailerCloud. |
| list_webforms | List all webforms in your MailerCloud account. |
| list_webhooks | List all webhooks configured in MailerCloud. |
| schedule_campaign | Schedule a campaign for sending. Omit scheduled_at to send immediately. |
| send_test_email | Send a test email for a campaign to specified recipients before the actual send. |
| send_transactional_email | Send a transactional email via MailerCloud Email API. Supports HTML, AMP HTML, attachments, CC/BCC. Use version 1.0 for HTML only, 2.0 for AMP content. |
| toggle_webhook | Enable or disable a webhook. |
| update_campaign | Update a draft campaign. Only draft campaigns can be updated. |
| update_contact | Update fields on an existing contact. |
| update_list | Update the name of an existing contact list. |
| update_template | Update an existing email template. |
| update_webhook | Update an existing webhook's configuration. |
| upsert_contact | Create a contact if it doesn't exist, or update it if it does. |