OpenAI GPT API in India, paid in rupees with UPI

Why paying for the GPT API from India is awkward

OpenAI’s API platform sells prepaid credit in US dollars, paid by card; UPI is not offered. That means an international card, a US-dollar charge and whatever foreign-currency fee your bank adds.

Checked on October 14, 2026 against OpenAI API pricing. Billing options change — check the vendor’s page if you prefer to buy direct. See the full comparison for when going direct is the better choice.

How ScaleMax works

• Buy a prepaid key at checkout in rupees: UPI, PayU or Cashfree (UPI, cards, net banking), Cryptomus (crypto) or PayPal. No payment fee on any method, no subscription.
• The key works with the GPT models it includes over the OpenAI Chat Completions and Responses APIs.
• Each completed request is deducted from your balance at the published model rate. Usage is visible per request in the dashboard.

Set up in three steps

1. Buy a key on the pricing page and pay in rupees with UPI, a card or net banking. Your key is delivered once the payment is confirmed.
2. Point your tool or SDK at https://api.scalemax.pro/v1 and use the key.
3. Send a short test request, then start real work.

npx scalemax@latest
# choose Codex, sign in with your key
npx scalemax@latest doctor

import os
from openai import OpenAI

client = OpenAI(base_url="https://api.scalemax.pro/v1", api_key=os.environ["SCALEMAX_API_KEY"])
reply = client.chat.completions.create(
    model="gpt-6-sol",
    messages=[{"role": "user", "content": "Namaste! Reply in one line."}],
)
print(reply.choices[0].message.content)

Full Codex CLI instructions are on the Codex CLI page; Cursor, Cline, Roo Code and other tools are on the integrations page.