MCP Tools

All 18 tools exposed to AI agents, grouped by function

Every tool below is a @mcp.tool() — available to Claude Desktop, Claude Code, Cursor, VS Code Copilot, Windsurf, and any other MCP-aware client.

Checkout

Tool	What it does
create_invoice	Build a signed payment URL (optional 54-ФЗ fiscal receipt).
build_split_invoice	Marketplace-style multi-recipient checkout.

Payment status

Tool	What it does
check_payment	Read current state via OpStateExt (state codes 5/10/20/50/60/80/100 + OpKey).
list_currencies	List payment methods available to the shop.
calc_out_sum	Compute amount credited after commission.

Refunds

Tool	What it does
refund_create	Initiate a refund (JWT HS256 + Password#3).
refund_status	Poll progress by requestId (finished / processing / canceled).
partner_refund	Alternative refund path for partner integrators.

Webhooks

Tool	What it does
verify_result_signature	Validate a ResultURL server-to-server notification.
verify_success_signature	Validate a SuccessURL browser redirect.

Holding (pre-auth)

Tool	What it does
hold_init	Authorize card + reserve funds (StepByStep=true).
hold_confirm	Capture previously-reserved funds.
hold_cancel	Release the hold without capturing.

Recurring

Tool	What it does
init_recurring_parent	Mark a checkout payment as recurring parent.
recurring_charge	Silent follow-up charge (no user interaction).

Fiscal 54-ФЗ

Tool	What it does
second_receipt_create	Emit the final receipt after an advance/prepayment.
second_receipt_status	Check fiscal registration status.

Auxiliary

Tool	What it does
send_sms	Send an SMS via Robokassa’s paid SMS service.

Tools that move money (create_invoice, all refunds, recurring_charge, hold_*, send_sms) should always be gated behind human confirmation in LLM-driven flows. See Security.