INDIVIDUAL MCP TOOL

regenerate_webhook_secret

Rotate the HMAC signing secret for an outgoing webhook endpoint.

send16.comnone authenticationAvailability not checked

LIVE ENDPOINT

https://mcp.send16.com/mcp

No auth detected

Connect to this endpoint to inspect the live schema for regenerate_webhook_secret and invoke it with your own arguments.

{}

Inferred read-only · medium confidence · heuristic, not a guarantee.

CONNECT WITH APPROVAL

Review this server and its permissions before adding it. Secret placeholders must be set locally.

Codex

~/.codex/config.toml

[mcp_servers.send16]
url = "https://mcp.send16.com/mcp"
enabled = true

Claude Code

.mcp.json

{
  "mcpServers": {
    "send16": {
      "type": "http",
      "url": "https://mcp.send16.com/mcp"
    }
  }
}

Claude Desktop

Settings → Connectors → Add custom connector

Name: send16
Remote MCP URL: https://mcp.send16.com/mcp

Add this remote URL as a custom connector in Claude Desktop. Availability depends on the user plan and workspace policy.

Cursor

.cursor/mcp.json

{
  "mcpServers": {
    "send16": {
      "url": "https://mcp.send16.com/mcp"
    }
  }
}

Visual Studio Code

.vscode/mcp.json

Add to Visual Studio Code

{
  "servers": {
    "send16": {
      "type": "http",
      "url": "https://mcp.send16.com/mcp"
    }
  }
}

Generic MCP

Client-specific MCP configuration

{
  "name": "send16",
  "transport": "streamable-http",
  "url": "https://mcp.send16.com/mcp"
}

MCP Inspector

Run the official MCP Inspector locally and enter the indexed Streamable HTTP endpoint.

whoami — Verify the API key and return the authenticated workspace: name, plan, email quota (used/limit), and owner.
send_email — Send a transactional email through Send16.
send_campaign_test — Send a test email for an existing campaign to preview how it will look in recipients' inboxes.
create_campaign — Create a new email campaign as a draft: optionally with full HTML content and recipients (exactly ONE of audienceIds / segmentId / contactIds / tagIds / sendToAll) so it's ready to test and send.
design_email_template — Use AI to generate a complete email HTML template based on a description.
list_campaigns — List email campaigns, newest first.
create_contact — Add a single new contact, optionally straight into audiences and/or with tags — e.
search_contacts — Search contacts by email address or name.