AI API on a purchase order (India): how billing works

Procurement teams often ask whether they can buy unoblox on a purchase order. The answer depends on how you buy. Self-serve accounts are prepaid in rupees. Enterprise customers get a dedicated account manager who negotiates the terms, including purchase orders, agreements and other commercial arrangements. This guide covers both routes and what a finance team gets.

Two ways to buy

Self-serve: a prepaid rupee wallet. Sign up, top up in ₹, and start. There is no sales call and nothing to sign. Each top-up gets a GST tax invoice.

Enterprise: a dedicated account manager. Larger teams are handled by a dedicated account manager, who negotiates the terms with you. Purchase orders, agreements (such as a master agreement or an order form) and the other commercial terms are arranged with them, not set by a standard price list. We don't publish those terms here because they are agreed per customer. Talk to our team or see the Enterprise page to start.

How self-serve buying works

1. Create an account and a workspace. API keys belong to a workspace.
2. Top up the rupee wallet on the Credits page. You pay through our payments partner, Razorpay, using whichever methods (such as UPI, cards and net-banking) the checkout shows. That flow shows the current limits and documents before you pay.
3. GST is added on top of the top-up, currently 18%. One GST tax invoice is issued for each top-up when the credit is added.
4. Usage is debited from the wallet at each model's listed per-token rate. Individual requests carry no further GST and no separate invoice.

If your internal process needs a PO to release funds for a self-serve top-up, you can raise it internally against the top-up amount. That is your own approval step. If you want the PO itself to be part of the commercial arrangement, that is a conversation for your account manager, so talk to our team.

A worked GST example

	Amount
Wallet credit	₹50,000.00
GST at 18%	₹9,000.00
Paid	₹59,000.00

The tax invoice shows ₹50,000.00 plus ₹9,000.00 GST. Whether the GST appears as CGST and SGST or as IGST depends on the place of supply. That comes from the billing state and the GSTIN you provide. To claim input-tax credit, keep a valid GSTIN on your billing details. Payment-processing fees are absorbed by unoblox, and credits do not expire.

Spend control

On a self-serve prepaid wallet, spend stays close to what you have funded. There is one exception: a single long reply can cost more than the balance, and the shortfall is shown as outstanding and cleared first by your next top-up. These controls help further:

• Per-key spend caps. Give each team or service its own key with a spend limit. A request that would breach a hard cap is refused instead of overspending.
• Workspace and organisation budgets. These are set in the enterprise portal.
• Per-key rate limits in requests per minute (see Rate limits).
• Usage reporting. Token counts and ₹ cost by model, in hourly or daily buckets, for internal chargeback.
• Low-balance alerts on the Credits page.

What a request costs

Every listed rate already includes unoblox's 5% platform fee, and you are charged exactly the listed rate. The Pricing & credits page has the exact rounding rules. In short, one request costs its input and output tokens at the listed rates, with a minimum of ₹0.01 for any paid model. Some models are free: Qwen3.8-27B is priced at ₹0.

Frequently asked questions

Can we buy on a purchase order, or on invoice terms? Yes, for enterprise customers. A dedicated account manager negotiates the terms with you, including purchase orders, agreements and commercial terms. Self-serve accounts are prepaid from the wallet, and each top-up is invoiced when the credit is added. Talk to our team to set up an enterprise arrangement.

What does a self-serve account get, and what is negotiated? Self-serve accounts pay the listed per-token rates from a prepaid wallet, and the top-up page shows any minimum top-up amount. If a long reply exceeds your balance, the shortfall is cleared from your next top-up, not invoiced separately. Anything beyond that, such as agreements, order forms or other commercial terms, is negotiated with your account manager.

Can we get a dedicated account manager? Yes, if you are an enterprise customer. Enterprise teams are handled by dedicated account managers who negotiate the terms. Get in touch and we'll tell you plainly what we can arrange.

Where are unoblox's legal and tax details? Our registered entity details are on the legal page. Each tax invoice carries the supplier details.

Who do we contact about vendor registration or procurement? Use the contact page or the Enterprise page. Enterprise agreements and order forms are covered in our legal centre. We reply by email.

Get started in rupees → https://unoblox.ai/sign-in