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