calculate_gst_tax
Calculates GST (CGST, SGST, IGST) breakdown based on transaction amount, GST rate, seller's GSTIN and buyer's location/state. Determines inter-state vs intra-state routing automatically.
This record as markdown: /tools/denispaul-india-business-mcp-server/calculate-gst-tax.md
What calculate_gst_tax does on India Business
AI agents call calculate_gst_tax to retrieve information from India Business without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
rate | number | Yes | The GST tax rate percentage (e.g. 5, 12, 18, 28). |
amount | number | Yes | The transaction amount (price of goods/services). |
inclusive | boolean | — | Whether the provided amount is inclusive of GST. Defaults to false (exclusive). |
sellerGstin | string | Yes | The 15-character GSTIN of the seller. |
buyerStateCodeOrName | string | Yes | The state name or 2-digit state code of the buyer (e.g., 'Delhi' or '07'). |
Parameters from the server's own tool schema.
Why calculate_gst_tax is rated Low
This tool takes input parameters (transaction amount, GST rate, GSTIN, location) and returns calculated GST tax breakdown figures. It is a read-only, deterministic calculation with no side effects, data modification, execution of code, or financial transaction processing.
From the tool's definition Tool 'calculate_gst_tax' performs a calculation that 'Calculates GST breakdown based on transaction amount, GST rate, seller's GSTIN and buyer's location/state.' The operation is computational and returns information derived from input parameters without…
Attacks that exploit this kind of access
The rule that runs calculate_gst_tax safely
PolicyLayer is an MCP gateway: it sits between your AI agents and India Business, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For calculate_gst_tax, this is the rule to start with:
calculate_gst_tax is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect India Business, apply this rule, and every calculate_gst_tax call is checked against it from then on.
Questions about calculate_gst_tax
Calculates GST (CGST, SGST, IGST) breakdown based on transaction amount, GST rate, seller's GSTIN and buyer's location/state. Determines inter-state vs intra-state routing automatically. It is categorised as a Read tool in the India Business MCP Server, which means it retrieves data without modifying state.
calculate_gst_tax accepts 5 parameters: rate, amount, inclusive, sellerGstin, buyerStateCodeOrName. Required: rate, amount, sellerGstin, buyerStateCodeOrName. The full parameter table on this page comes from the server's own tool schema.
Register the India Business MCP server in PolicyLayer and add a rule for calculate_gst_tax: 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 India Business. Nothing to install.
calculate_gst_tax 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 calculate_gst_tax 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 calculate_gst_tax. 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.
calculate_gst_tax is provided by the India Business MCP server (@denispaul/india-business-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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