Calculate delivery cost and optional delivery date estimation for a shipment. Doc 1.2 explains that every Nova Poshta call sends apiKey/modelName/calledMethod/methodProperties, so this helper either forwards your raw InternetDocument payload or builds one from typed fields (CitySender, CityRecipi...
AI agents call waybill_calculate_cost to retrieve information from Novaposhta without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries the Nova Poshta API to compute shipping costs and delivery estimates based on provided shipment parameters (origin, destination, service type, weight, etc.). It retrieves information and performs calculations with no side effects—no data is created, modified, deleted, or financial transactions are committed.
From the tool's definition Tool name is 'waybill_calculate_cost' and description states it 'Calculate[s] delivery cost and optional delivery date estimation' — both read operations that retrieve calculated values without modifying any state.
Risk signalsBulk/mass operation — affects multiple targets
Attacks that exploit this kind of access
Calculate delivery cost and optional delivery date estimation for a shipment. Doc 1.2 explains that every Nova Poshta call sends apiKey/modelName/calledMethod/methodProperties, so this helper either forwards your raw InternetDocument payload or builds one from typed fields (CitySender, CityRecipient, ServiceType, CargoType, Cost, Weight, SeatsAmount). It is categorised as a Read tool in the Novaposhta MCP Server, which means it retrieves data without modifying state.
Register the Novaposhta MCP server in PolicyLayer and add a rule for waybill_calculate_cost: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Novaposhta. Nothing to install.
waybill_calculate_cost is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the waybill_calculate_cost rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for waybill_calculate_cost. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
waybill_calculate_cost is provided by the Novaposhta MCP server (@shopana/novaposhta-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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