GST at the speed of business

import requests session = requests.Session() session.headers["X-API-Key"] = "gsta_your_key" BASE = "https://gstaccelerator.in/v1" # Lookup by description r = session.post(f"{BASE}/lookup", json={ "description": "gold jewellery", "supply_type": "interstate" }) data = r.json() print(data["tax_rates"]["igst"]) # → 3.0 print(data["notification_ref"]) # → "09/2025-CT(Rate), Schedule IV" # Direct HSN code lookup rate = session.get(f"{BASE}/hsn/71081200").json() print(rate["applicable_rate"]["interstate"]) # → "IGST 3%" # Bulk — up to 100 items per call bulk = session.post(f"{BASE}/bulk", json={"items": [ {"description": "cotton shirt", "branded": True}, {"description": "laptop", "supply_type": "intrastate"}, {"description": "construction work", "sac": True}, ]})

const BASE = "https://gstaccelerator.in/v1"; const headers = { "X-API-Key": "gsta_your_key", "Content-Type": "application/json" }; // Lookup — intrastate mobile phone const res = await fetch(`${BASE}/lookup`, { method: "POST", headers, body: JSON.stringify({ description: "mobile phone", supply_type: "intrastate", branded: true }) }); const { tax_rates, applicable_rate } = await res.json(); // Auto-calculate invoice tax const value = 25000; const cgst = (value * tax_rates.cgst) / 100; // ₹2,250 const sgst = (value * tax_rates.sgst) / 100; // ₹2,250 console.log(applicable_rate); // "CGST 9% + SGST 9% = 18%"

# claude_desktop_config.json — or any MCP-compatible agent { "mcpServers": { "gst-accelerator": { "type": "url", "url": "https://gstaccelerator.in/mcp", "headers": { "X-API-Key": "gsta_your_key" } } } } # Tools your agent gets natively: # lookup_hsn_rate(description, supply_type?, branded?, sale_value_inr?) # get_rate_by_hsn(hsn_code, supply_type?) # get_sac_rate(sac_code, supply_type?) # bulk_classify(items[]) # Example system prompt addition: "Before generating any invoice line item, call lookup_hsn_rate to retrieve the verified CGST/SGST/IGST rates. Never hardcode tax percentages. Use the notification_ref field for audit logs."