Obtaining valid API credentials is a mandatory prerequisite to enable seamless e-invoicing and e-way bill generation through Blinkit’s approved integration partner (PWC / Vay Network Services Private Limited). Below is a clear, legally compliant procedure you must follow:

Step 1: Login to the Government E-Invoice Portal

Access the official e-invoice portal at https://einvoice1.gst.gov.in/.
Use your registered GSTIN credentials (username and password) to log in securely.

Step 2: Navigate to API Registration

Once logged in, locate and click on “API Registration” in the main menu.
From the drop-down, select “User Credentials”, then click on “Create API User.”
This initiates the creation process for your API credentials.

Step 3: Complete OTP Verification

You will receive a One-Time Password (OTP) on your GST-registered mobile number.
Enter this OTP to verify your request for API access credentials.
Ensure you enter the OTP within its validity period to avoid session expiry.

Step 4: Select the GSP (GST Suvidha Provider)

In the API user creation form:

• Select “Through GSP” as the method.
• From the list of approved GSPs, choose PWC (Vay Network Services Private Limited) — this is the official integration partner for Blinkit.

This selection ensures your e-invoice and e-way bill data flows securely through Blinkit’s designated network.

Step 5: Create User ID and Password

After selecting the GSP:

• Create a unique User ID (this will be your API username).
• Set a secure Password (follow the password complexity rules shown on the portal).

Record these credentials carefully — they are required to integrate your Blinkit account for automated e-invoicing and e-way bill generation.

Important Compliance Note

• Ensure your GSTIN is active and compliant before initiating API registration.
• Use only the official e-invoice portal; do not share credentials on unofficial channels.
• API credentials must be kept confidential and used strictly for integration purposes with Blinkit’s authorized partner only.