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bcharleson/instantly-mcp

A lightweight, robust Model Context Protocol (MCP) server for the Instantly.ai V2 API, built with FastMCP.

View on GitHub1

Install

Client configuration

{
  "mcpServers": {
    "instantly": {
      "command": "python",
      "args": [
        "-m",
        "instantly_mcp.server"
      ],
      "env": {
        "INSTANTLY_API_KEY": "<INSTANTLY_API_KEY>"
      }
    }
  }
}

Environment variables

INSTANTLY_API_KEYTOOL_CATEGORIES
GitHub stars
1
Author
@bcharleson
Category
Marketing, Developer Tools
License
MIT
Updated
Oct 6, 2026

Features

  • 38 tools across 6 categories (accounts, campaigns, leads, emails, analytics, background_jobs)

  • Dual transport support: HTTP (remote deployment) + stdio (local)

  • Lazy loading: Reduce context window by loading only specific tool categories

  • Multi-tenant support: Per-request API keys for HTTP deployments

  • Comprehensive error handling: Detailed, actionable error messages

  • Rate limiting: Automatic tracking from API response headers

  • Dynamic timeouts: Extended timeouts for search and bulk operations

Tools (37)

  • list_accounts

    List email accounts with filtering

  • get_account

    Get account details and warmup status

  • create_account

    Create account with IMAP/SMTP credentials

  • update_account

    Update account settings

  • manage_account_state

    Pause, resume, warmup control, test vitals

  • delete_account

    Permanently delete account

  • create_campaign

    Create email campaign (two-step process)

  • list_campaigns

    List campaigns with pagination

  • get_campaign

    Get campaign details and sequences

  • update_campaign

    Update campaign settings

  • activate_campaign

    Start campaign sending

  • pause_campaign

    Stop campaign sending

  • delete_campaign

    Permanently delete campaign

  • search_campaigns_by_contact

    Find campaigns a contact is enrolled in

  • list_leads

    List leads with filtering

  • get_lead

    Get lead details

  • create_lead

    Create single lead

  • update_lead

    Update lead ( custom_variables replaces all)

  • list_lead_lists

    List lead lists

  • create_lead_list

    Create lead list

  • update_lead_list

    Update lead list

  • get_verification_stats_for_lead_list

    Get email verification stats

  • add_leads_to_campaign_or_list_bulk

    Bulk add up to 1,000 leads

  • delete_lead

    Permanently delete lead

  • delete_lead_list

    Permanently delete lead list

  • move_leads_to_campaign_or_list

    Move/copy leads between campaigns/lists

  • list_emails

    List emails with filtering

  • get_email

    Get email details

  • reply_to_email

    Send real email reply

  • count_unread_emails

    Count unread inbox emails

  • verify_email

    Verify email deliverability

  • mark_thread_as_read

    Mark email thread as read

  • get_campaign_analytics

    Campaign metrics (opens, clicks, replies)

  • get_daily_campaign_analytics

    Day-by-day performance

  • get_warmup_analytics

    Account warmup metrics

  • list_background_jobs

    List async background jobs with pagination

  • get_background_job

    Get details of a specific background job

Details on this page are taken from the project's README. Open README

Supported clients

Clients mentioned in this server's README:

View all
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Anthropic's official Claude AI desktop application. Supports MCP servers to extend functionality.

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Cursor

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The first agentic IDE. The Cursor editor truly merges how developers and AI work together, delivering a magical coding experience.

WindowsMacOSLinux

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