update_registration_fields — FastCAC MCP Tool Mutating
update_registration_fields
(update registration fields) is one of 49 tools on the
FastCAC
MCP server. Connect the server and your client discovers it on the handshake.
by client
How to call update_registration_fields from your client
- Claude Code FastCAC update_registration_fields run in your project directory
- Claude Desktop FastCAC update_registration_fields ~/Library/Application Support/Claude/claude_desktop_config.json
- Cursor FastCAC update_registration_fields ~/.cursor/mcp.json
- VS Code FastCAC update_registration_fields .vscode/mcp.json
- Zed FastCAC update_registration_fields ~/.config/zed/settings.json
- Windsurf FastCAC update_registration_fields ~/.codeium/windsurf/mcp_config.json
- Cline FastCAC update_registration_fields ~/Library/Application Support/Code/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json
- Gemini CLI FastCAC update_registration_fields ~/.gemini/settings.json
- Grok FastCAC update_registration_fields .mcp.json (in your project root)
- ChatGPT FastCAC update_registration_fields Settings → Connectors → Advanced → Developer mode
- Claude.ai FastCAC update_registration_fields Settings → Connectors → Add custom connector
- LangChain FastCAC update_registration_fields pip install langchain-mcp-adapters
Fastest route
claude mcp add --transport http cac https://api.fastcac.com/mcpOther tools on this server
- calculate_cac_fees
- check_annual_returns
- check_business_name_compliance
- check_name_availability
- generate_business_names
- get_cac_tax_id
- get_nin_request_status
- get_prices
- list_nature_of_business
- search_cac_register
- search_knowledge_base
- search_line_of_business
- start_nin_request
- apply_discount_code
- create_business
- create_share_link
- delete_business
- fetch_nin_slip
- get_action_status
- get_cac_documents
- get_capabilities
- get_credits
- get_notification_preferences
- get_registration_state
- get_subscription
- list_my_businesses
- list_notifications
- list_share_links
- manage_subscription
- mark_notifications_read
- recheck_documents
- refresh_cac_status
- remove_discount_code
- remove_whatsapp
- rename_business
- request_credit_purchase
- request_documents
- request_nin
- request_payment
- request_subscription
- request_whatsapp_verification
- revoke_share_link
- set_share_review
- show_share_link
- switch_workspace
- update_notification_preferences
- update_profile
- use_nin_photo_for_passport
This list was read from the server itself, by connecting to it and calling tools/list on 11 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.