fastbill_get_customer — FastBill MCP by usefulapi MCP Tool
fastbill_get_customer
(fastbill get customer) 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_get_customer from your client
- Claude Code FastBill MCP by usefulapi fastbill_get_customer run in your project directory
- Claude Desktop FastBill MCP by usefulapi fastbill_get_customer ~/Library/Application Support/Claude/claude_desktop_config.json
- Cursor FastBill MCP by usefulapi fastbill_get_customer ~/.cursor/mcp.json
- VS Code FastBill MCP by usefulapi fastbill_get_customer .vscode/mcp.json
- Zed FastBill MCP by usefulapi fastbill_get_customer ~/.config/zed/settings.json
- Windsurf FastBill MCP by usefulapi fastbill_get_customer ~/.codeium/windsurf/mcp_config.json
- Cline FastBill MCP by usefulapi fastbill_get_customer ~/Library/Application Support/Code/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json
- Gemini CLI FastBill MCP by usefulapi fastbill_get_customer ~/.gemini/settings.json
- Grok FastBill MCP by usefulapi fastbill_get_customer .mcp.json (in your project root)
- ChatGPT FastBill MCP by usefulapi fastbill_get_customer Settings → Connectors → Advanced → Developer mode
- Claude.ai FastBill MCP by usefulapi fastbill_get_customer Settings → Connectors → Add custom connector
- LangChain FastBill MCP by usefulapi fastbill_get_customer 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_list_contacts
- 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.