mailerlite_upsert_subscriber — MailerLite MCP by usefulapi MCP Tool
mailerlite_upsert_subscriber
(mailerlite upsert subscriber) is one of 13 tools on the
MailerLite MCP by usefulapi
MCP server. Connect the server and your client discovers it on the handshake.
by client
How to call mailerlite_upsert_subscriber from your client
- Claude Code MailerLite MCP by usefulapi mailerlite_upsert_subscriber run in your project directory
- Claude Desktop MailerLite MCP by usefulapi mailerlite_upsert_subscriber ~/Library/Application Support/Claude/claude_desktop_config.json
- Cursor MailerLite MCP by usefulapi mailerlite_upsert_subscriber ~/.cursor/mcp.json
- VS Code MailerLite MCP by usefulapi mailerlite_upsert_subscriber .vscode/mcp.json
- Zed MailerLite MCP by usefulapi mailerlite_upsert_subscriber ~/.config/zed/settings.json
- Windsurf MailerLite MCP by usefulapi mailerlite_upsert_subscriber ~/.codeium/windsurf/mcp_config.json
- Cline MailerLite MCP by usefulapi mailerlite_upsert_subscriber ~/Library/Application Support/Code/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json
- Gemini CLI MailerLite MCP by usefulapi mailerlite_upsert_subscriber ~/.gemini/settings.json
- Grok MailerLite MCP by usefulapi mailerlite_upsert_subscriber .mcp.json (in your project root)
- ChatGPT MailerLite MCP by usefulapi mailerlite_upsert_subscriber Settings → Connectors → Advanced → Developer mode
- Claude.ai MailerLite MCP by usefulapi mailerlite_upsert_subscriber Settings → Connectors → Add custom connector
- LangChain MailerLite MCP by usefulapi mailerlite_upsert_subscriber pip install langchain-mcp-adapters
Fastest route
claude mcp add --transport http mailerlite https://mailerlite.usefulapi.io/mcpOther tools on this server
- mailerlite_list_subscribers
- mailerlite_get_subscriber
- mailerlite_list_groups
- mailerlite_list_group_subscribers
- mailerlite_list_campaigns
- mailerlite_get_campaign
- mailerlite_list_fields
- mailerlite_list_segments
- mailerlite_list_automations
- mailerlite_list_webhooks
- mailerlite_create_group
- mailerlite_assign_subscriber_to_group
This list was read from the server itself, by connecting to it and calling tools/list on 14 November 2026. It is what
the server actually exposes, not what its listing claims.
Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. The registry stores tool names only; connect the server for its live schemas.