clearstream_add_subscriber — Clearstream MCP by usefulapi MCP Tool
clearstream_add_subscriber
(clearstream add subscriber) is one of 15 tools on the
Clearstream MCP by usefulapi
MCP server. Connect the server and your client discovers it on the handshake.
by client
How to call clearstream_add_subscriber from your client
- Claude Code Clearstream MCP by usefulapi clearstream_add_subscriber run in your project directory
- Claude Desktop Clearstream MCP by usefulapi clearstream_add_subscriber ~/Library/Application Support/Claude/claude_desktop_config.json
- Cursor Clearstream MCP by usefulapi clearstream_add_subscriber ~/.cursor/mcp.json
- VS Code Clearstream MCP by usefulapi clearstream_add_subscriber .vscode/mcp.json
- Zed Clearstream MCP by usefulapi clearstream_add_subscriber ~/.config/zed/settings.json
- Windsurf Clearstream MCP by usefulapi clearstream_add_subscriber ~/.codeium/windsurf/mcp_config.json
- Cline Clearstream MCP by usefulapi clearstream_add_subscriber ~/Library/Application Support/Code/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json
- Gemini CLI Clearstream MCP by usefulapi clearstream_add_subscriber ~/.gemini/settings.json
- Grok Clearstream MCP by usefulapi clearstream_add_subscriber .mcp.json (in your project root)
- ChatGPT Clearstream MCP by usefulapi clearstream_add_subscriber Settings → Connectors → Advanced → Developer mode
- Claude.ai Clearstream MCP by usefulapi clearstream_add_subscriber Settings → Connectors → Add custom connector
- LangChain Clearstream MCP by usefulapi clearstream_add_subscriber pip install langchain-mcp-adapters
Fastest route
claude mcp add --transport http clearstream https://clearstream.usefulapi.io/mcpOther tools on this server
- clearstream_get_account
- clearstream_list_numbers
- clearstream_list_lists
- clearstream_get_list
- clearstream_list_subscribers_of_list
- clearstream_list_subscribers
- clearstream_get_subscriber
- clearstream_list_tags
- clearstream_list_texts
- clearstream_get_text_stats
- clearstream_send_text
- clearstream_add_subscriber_to_list
- clearstream_remove_subscriber_from_list
- clearstream_tag_subscribers
This list was read from the server itself, by connecting to it and calling tools/list on 7 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.