copper_list_custom_field_definitions — Copper MCP by usefulapi MCP Tool
copper_list_custom_field_definitions
(copper list custom field definitions) is one of 27 tools on the
Copper MCP by usefulapi
MCP server. Connect the server and your client discovers it on the handshake.
by client
How to call copper_list_custom_field_definitions from your client
- Claude Code Copper MCP by usefulapi copper_list_custom_field_definitions run in your project directory
- Claude Desktop Copper MCP by usefulapi copper_list_custom_field_definitions ~/Library/Application Support/Claude/claude_desktop_config.json
- Cursor Copper MCP by usefulapi copper_list_custom_field_definitions ~/.cursor/mcp.json
- VS Code Copper MCP by usefulapi copper_list_custom_field_definitions .vscode/mcp.json
- Zed Copper MCP by usefulapi copper_list_custom_field_definitions ~/.config/zed/settings.json
- Windsurf Copper MCP by usefulapi copper_list_custom_field_definitions ~/.codeium/windsurf/mcp_config.json
- Cline Copper MCP by usefulapi copper_list_custom_field_definitions ~/Library/Application Support/Code/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json
- Gemini CLI Copper MCP by usefulapi copper_list_custom_field_definitions ~/.gemini/settings.json
- Grok Copper MCP by usefulapi copper_list_custom_field_definitions .mcp.json (in your project root)
- ChatGPT Copper MCP by usefulapi copper_list_custom_field_definitions Settings → Connectors → Advanced → Developer mode
- Claude.ai Copper MCP by usefulapi copper_list_custom_field_definitions Settings → Connectors → Add custom connector
- LangChain Copper MCP by usefulapi copper_list_custom_field_definitions pip install langchain-mcp-adapters
Fastest route
claude mcp add --transport http copper https://copper.usefulapi.io/mcpOther tools on this server
- copper_search_projects
- copper_get_project
- copper_list_files
- copper_get_file_metadata
- copper_get_account
- copper_list_users
- copper_search_people
- copper_get_person
- copper_search_companies
- copper_get_company
- copper_search_opportunities
- copper_get_opportunity
- copper_search_leads
- copper_get_lead
- copper_search_tasks
- copper_get_task
- copper_list_activities
- copper_list_activity_types
- copper_list_pipelines
- copper_create_person
- copper_update_person
- copper_create_company
- copper_create_opportunity
- copper_create_lead
- copper_create_task
- copper_log_activity
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.