SendSeven Messaging

License: MIT MCP Node.js Cloudflare Workers

The official Model Context Protocol (MCP) server for SendSeven - the unified messaging API platform for WhatsApp, Instagram DMs, Telegram, SMS, Messenger, Live Chat, and Email.

Connect your SendSeven account to Claude, ChatGPT, Gemini, Cursor, or any MCP-compatible AI assistant to manage your unified inbox, send omnichannel messages (WhatsApp, Instagram private replies, Telegram, SMS, Messenger, email), run marketing campaigns, staff a team chat bot, and search your knowledge base using natural language — all through your existing customer support and messaging API platform.

Quick Start

Option 1: Remote Server (Recommended)

No installation needed. Add to your AI client:

Claude Desktop (claude_desktop_config.json):

{
  "mcpServers": {
    "sendseven": {
      "url": "https://mcp.sendseven.com/mcp",
      "auth": {
        "type": "oauth2",
        "authorizationUrl": "https://mcp.sendseven.com/authorize",
        "scopes": ["conversations:read", "messages:create", "contacts:read"]
      }
    }
  }
}

Claude Code (.claude/settings.json):

{
  "mcpServers": {
    "sendseven": {
      "url": "https://mcp.sendseven.com/mcp",
      "headers": {
        "Authorization": "Bearer YOUR_API_TOKEN"
      }
    }
  }
}

ChatGPT (Settings > Connectors > Add custom connector):

MCP Server URL: https://mcp.sendseven.com/mcp
Authentication: OAuth

ChatGPT walks you through the OAuth consent + capability picker automatically — no config file needed.

Option 2: API Token (Developer Setup)

For developers and CI/CD pipelines, use a static API token:

1. Generate an API token in SendSeven: Settings > API Tokens
2. Configure your MCP client with the token as a Bearer header

Option 3: Self-Hosted

git clone https://github.com/SendSeven-GmbH/sendseven-mcp-server.git
cd sendseven-mcp-server
npm install
npm run dev  # Runs on localhost:8787

What Can It Do?

Support Operations

• "Show me open conversations" - List and filter conversations
• "What's the conversation with John about?" - View conversation details
• "Close ticket #123 with notes: refund issued" - Close conversations
• "Assign this to Sarah" - Route to team members

Messaging

• "Send a WhatsApp to +49 170 1234567: Your order is ready" - Multi-channel messaging
• "Email [email protected] about the meeting" - Auto-detect best channel
• "Find all VIP customers" - Contact search

Marketing

• "Create a push notification campaign about our flash sale" - Campaign creation
• "Send an email newsletter to our enterprise list" - Email campaigns
• "How much would a WhatsApp campaign cost?" - Cost estimation

Knowledge Base

• "What does our FAQ say about refunds?" - AI-powered KB search
• "How do I set up WhatsApp integration?" - Self-service answers

Available Tools

Tools are registered based on the capabilities selected during the OAuth connection. The table below groups tools by function for readability; the OAuth consent screen groups the same 42 tools into 8 coarser capability groups (Conversations, Messaging, Email, Contacts, Campaigns, Knowledge Base, Webhooks, Team Chat Bots) — granting a group grants every tool listed under it below. Full parameter reference: docs/TOOLS.md.

Category	Tools
Conversations	list_conversations, get_conversation, send_reply, close_conversation, reopen_conversation, snooze_conversation, assign_conversation, add_internal_note, email_conversation_transcript
Messaging	send_message_to_contact, send_whatsapp_template, send_email, upload_attachment
Contacts	search_contacts, create_contact, update_contact
Tags	list_tags, create_tag, tag_conversation, untag_conversation, tag_contact, untag_contact
Campaigns	list_contact_lists, list_campaigns, get_campaign_status, create_and_send_campaign, list_email_campaigns, get_email_campaign_analytics
Knowledge Base	query_knowledge_base, list_knowledge_base_folders
Channels	list_channels, list_email_mailboxes, list_verified_email_domains, list_whatsapp_templates, get_whatsapp_template
Team	list_team_members
Team Chat Bots	list_team_chat_channels, send_team_chat_channel_message, send_team_chat_direct_message
Webhooks (Developer)	list_webhooks, create_webhook, delete_webhook

Authentication

OAuth 2.0 + PKCE (Recommended)

The server is a full OAuth 2.0 authorization server for MCP clients, with Dynamic Client Registration (DCR) so you don't need to pre-register an app:

Endpoint	URL
MCP endpoint	https://mcp.sendseven.com/mcp (Streamable HTTP)
Authorization	https://mcp.sendseven.com/authorize
Token	https://mcp.sendseven.com/token
Dynamic Client Registration	https://mcp.sendseven.com/register

Most MCP clients (Claude, Cursor, etc.) discover these automatically from https://mcp.sendseven.com/mcp and only need the base URL — see the claude-desktop.json example above and the examples/ directory. For a client that needs the flow spelled out:

1. The client registers itself via DCR (POST /register) and receives a client_id.
2. The client sends the user to /authorize with a PKCE code_challenge and the requested scopes.
3. The user logs in with their SendSeven account and approves the requested scopes on the consent screen.
4. The authorization code is redeemed at /token (with the PKCE code_verifier) for an access + refresh token.
5. The access token is sent as a Bearer token on every MCP request; the server refreshes it automatically using the refresh token.

Users can only grant scopes their SendSeven role already has - a Support Agent without campaign permissions never sees campaign tools, regardless of what the client requests.

API Tokens (Developer)

Generate a token in SendSeven's dashboard (Settings > API Tokens) and pass it as a Bearer header — simpler for CI/CD and scripts, but it doesn't auto-refresh and must be rotated manually.

Claude Skills

The repository includes workflow guides (Skills) that teach AI assistants best practices:

• Campaign Creation - Step-by-step campaign workflow
• Conversation Management - Triage, respond, and resolve
• Contact Messaging - Find contacts and message them
• Team Chat Bots - Post bot messages to Team Chat channels and users

Configuration Examples

See the examples/ directory for configuration files:

• claude-desktop.json - Claude Desktop
• claude-code.json - Claude Code CLI
• cursor.json - Cursor IDE

Pricing

Free for all SendSeven customers. MCP server access is included in every plan.

• Read operations: unlimited (within rate limits)
• Write operations: billed as regular API usage
• Rate limits: 20-500 req/min depending on plan

Development

# Install dependencies
npm install

# Run locally
npm run dev

# Run tests
npm test

# Type check
npm run typecheck

# Deploy to Cloudflare Workers
npm run deploy

Security

• OAuth 2.0 with PKCE (no client secret in browser)
• All tokens encrypted at rest
• Scope-based access control (27 granular OAuth scopes, grouped into 8 capability groups for consent)
• Tenant isolation (no cross-tenant data access)
• Rate limiting per plan
• Token revocation via SendSeven settings

License

MIT - see LICENSE

Links

• SendSeven - The unified messaging API
• MCP Specification - Model Context Protocol
• API Documentation - SendSeven REST API