Java integration
GSTIN Verification API with Java
Use this Java example to call GET /v1/gstin/{gstin} with an API key. This page contains a language-specific snippet, auth notes and links back to full docs — not a thin doorway duplicate.
What you need
- An API Seeker key (Free plan is enough to start)
- Base URL
https://gstchk.apiseeker.com - Path
/v1/gstin - Header authentication via
X-API-Key
Java example
Java
HttpClient client = HttpClient.newHttpClient();
HttpRequest request = HttpRequest.newBuilder()
.uri(URI.create("https://gstchk.apiseeker.com/v1/gstin/29ABCDE1234F1Z5"))
.header("X-API-Key", "YOUR_API_KEY")
.method("GET", HttpRequest.BodyPublishers.noBody())
.build();
HttpResponse<String> response = client.send(request, HttpResponse.BodyHandlers.ofString());
System.out.println(response.body());Expected response shape
JSON
{
"gstin": "29ABCDE1234F1Z5",
"valid": true,
"legalName": "Example Private Limited",
"tradeName": "Example",
"status": "Active",
"stateCode": "29"
}