GST Verification

Verify any GSTIN instantly — legal name, trade name, address, registration status, constitution, GPS coordinates, HSN goods aur monthly filing status.

Endpoint

GET/gst?number=19HKJPM4450C1Z1

Verify GSTIN — complete taxpayer profile + HSN + filing.

Query Parameters

Parameter	Type	Required	Description
number	string	✅	15-character GSTIN
fy	string	❌	Financial year — 2024, 2025, 2026

tip

fy diya → sirf filing data (fast, halka). Bina fy → complete taxpayer profile + HSN + filing.

# Complete profile (taxpayer + HSN + filing)
curl "https://api.apimitra.in/gst?number=19HKJPM4450C1Z1"

# SIRF filing data for a year (no unnecessary data)
curl "https://api.apimitra.in/gst?number=19HKJPM4450C1Z1&fy=2025"

Response — fy diya ho to

{
  "status": "ok",
  "api": "gst",
  "gstin": "19HKJPM4450C1Z1",
  "financial_year": "2025-2026",
  "returns": [
    { "return_type": "GSTR1", "period": "March", "mode": "ONLINE", "filed_on": "26/05/2026", "status": "Filed" },
    { "return_type": "GSTR3B", "period": "March", "mode": "ONLINE", "filed_on": "20/04/2026", "status": "Filed" }
  ]
}

Galat fy → 400 error with available years list. Bina fy → full response below.

Response — Full (bina fy)

Response — Extra Fields

Field	Description
hsn_goods	Registered goods/services (HSN code + description)
filing_years	Available financial years
filing_status	Monthly GSTR1/GSTR3B filing history (period, mode, date, status)

Example

curl "https://api.apimitra.in/gst?number=19HKJPM4450C1Z1"

{
  "status": "ok",
  "gstin": "19HKJPM4450C1Z1",
  "trade_name": "GENX COMPUTER",
  "legal_name": "Arnab Modak",
  "registration_status": "Active",
  "registration_date": "22/06/2024",
  "constitution": "Proprietorship",
  "taxpayer_type": "Regular",
  "nature_of_business": ["Retail Business", "Others"],
  "state": "West Bengal",
  "address": "C/O Haradhan Modak, Radhanagar, Ghatal",
  "lat": 22.666033,
  "lon": 87.732022,
  "hsn_goods": [
    { "hsn": "8471", "description": "AUTOMATIC DATA PROCESSING MACHINES..." },
    { "hsn": "8523", "description": "DISCS, TAPES, SOLID-STATE STORAGE..." }
  ],
  "filing_years": [
    { "year": "2024-2025", "value": "2024" },
    { "year": "2025-2026", "value": "2025" },
    { "year": "2026-2027", "value": "2026" }
  ],
  "filing_status": {
    "financial_year": "2024-2025",
    "returns": [
      { "return_type": "GSTR1", "period": "March", "mode": "ONLINE", "filed_on": "15/04/2025", "status": "Filed" },
      { "return_type": "GSTR3B", "period": "March", "mode": "ONLINE", "filed_on": "20/04/2025", "status": "Filed" }
    ]
  }
}

GSTIN Format

19 HKJPM4450C 1 Z 1
│  └───PAN───┘ │ │ └ check digit
│              │ └ entity number
│              └ Z (default)
└ 2-digit state code

Position	Meaning
1–2	State code (19 = West Bengal)
3–12	PAN of the taxpayer
13	Entity number (1–9)
14	Z (default letter)
15	Check digit

Malformed input returns 400.