fastbill_list_contacts — FastBill MCP by usefulapi MCP Tool
fastbill_list_contacts
(fastbill list contacts) is one of 22 tools on the
FastBill MCP by usefulapi
MCP server. Connect the server and your client discovers it on the handshake.
by client
How to call fastbill_list_contacts from your client
- Claude Code FastBill MCP by usefulapi fastbill_list_contacts run in your project directory
- Claude Desktop FastBill MCP by usefulapi fastbill_list_contacts ~/Library/Application Support/Claude/claude_desktop_config.json
- Cursor FastBill MCP by usefulapi fastbill_list_contacts ~/.cursor/mcp.json
- VS Code FastBill MCP by usefulapi fastbill_list_contacts .vscode/mcp.json
- Zed FastBill MCP by usefulapi fastbill_list_contacts ~/.config/zed/settings.json
- Windsurf FastBill MCP by usefulapi fastbill_list_contacts ~/.codeium/windsurf/mcp_config.json
- Cline FastBill MCP by usefulapi fastbill_list_contacts ~/Library/Application Support/Code/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json
- Gemini CLI FastBill MCP by usefulapi fastbill_list_contacts ~/.gemini/settings.json
- Grok FastBill MCP by usefulapi fastbill_list_contacts .mcp.json (in your project root)
- ChatGPT FastBill MCP by usefulapi fastbill_list_contacts Settings → Connectors → Advanced → Developer mode
- Claude.ai FastBill MCP by usefulapi fastbill_list_contacts Settings → Connectors → Add custom connector
- LangChain FastBill MCP by usefulapi fastbill_list_contacts pip install langchain-mcp-adapters
Fastest route
claude mcp add --transport http fastbill https://fastbill.usefulapi.io/mcpOther tools on this server
- fastbill_list_customers
- fastbill_get_customer
- fastbill_list_invoices
- fastbill_get_invoice
- fastbill_list_recurring_invoices
- fastbill_list_estimates
- fastbill_list_expenses
- fastbill_list_revenues
- fastbill_list_articles
- fastbill_list_projects
- fastbill_list_time_entries
- fastbill_list_templates
- fastbill_create_customer
- fastbill_update_customer
- fastbill_create_invoice
- fastbill_complete_invoice
- fastbill_set_invoice_paid
- fastbill_create_estimate
- fastbill_create_article
- fastbill_create_project
- fastbill_create_time_entry
This list was read from the server itself, by connecting to it and calling tools/list on 26 October 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.