Short answer: Per token, going direct to Anthropic is cheaper than the AICredits gateway whenever you can pay in USD at a normal card markup. The gateway's price is the USD list price times the live USD/INR rate times 1.05 times 1.05, plus about 2.36% lost on each top-up, which comes to roughly 1.13 times the plain conversion. It wins when you cannot get a working USD payment method or need INR billing, UPI and per-key rupee caps.
Disclosure: the aicredits.in links are affiliate links and I use the service. All dollar prices, token volumes and the exchange rate in the worked example are invented to show the arithmetic. I am not quoting any current Claude price, and the card markup is a placeholder for your own bank's number.
People ask "is a gateway worth the extra 10%?" as if the answer were a fact. It depends on three numbers: what your card really charges, how much you spend, and what a failed payment costs you in time. This post gives you the formula, a break-even you can verify, and a short function to run with your own inputs.
What is the exact INR formula for each route?
Direct from Anthropic, you pay the USD price on your card. What you see in rupees is:
direct_inr = usd_cost x usd_inr_rate x (1 + card_markup)
card_markup is whatever your bank adds: a forex mark-up, an international-transaction fee, sometimes GST on top of those, and whatever tax Anthropic itself charges. I do not know your bank's number and I have not checked Anthropic's tax treatment for Indian customers, so I leave both as inputs.
Through AICredits, the documented formula in the pricing docs and review is:
wallet_inr = usd_cost x live_usd_inr x 1.05 (forex buffer) x 1.05 (platform fee)
That multiplier is 1.1025. Separately, the Razorpay gateway takes about 2.36% of each top-up (2% plus 18% GST on that 2%). So to put wallet_inr into the wallet you must pay wallet_inr / (1 - 0.0236) out of your bank account:
paid_inr = usd_cost x live_usd_inr x 1.1025 / 0.9764 = usd_cost x live_usd_inr x about 1.129
Two honest caveats. First, the live rate AICredits uses and the rate your bank uses are not identical, so the 1.129 is a clean comparison only if both start from the same rate. Second, unspent credits sit in your wallet for up to a year, which is a small float cost, not a fee.
What is the break-even?
Set the two equal: a direct payment costs 1 + card_markup times the plain conversion, and the gateway costs about 1.129 times. They match when:
card_markup = 12.9%
If your card's all-in markup is below about 12.9%, direct is cheaper per token. Check your card statement for the real figure. If it is under that line, the per-token verdict favours direct, and the real argument for a gateway is not price.
What does that look like with numbers?
All inputs invented: a monthly volume of 20 million input tokens and 4 million output tokens, at an illustrative $2 per million input and $10 per million output, with the rate at ₹90. I ran the script below to get these figures.
FOREX_BUFFER = 1.05
PLATFORM_FEE = 1.05
TOPUP_LOSS = 0.0236 # about 2.36% on each Razorpay top-up
def usd_cost(m_in, m_out, usd_in_per_m, usd_out_per_m):
return m_in * usd_in_per_m + m_out * usd_out_per_m
def direct_inr(usd, rate, card_markup_pct=0.0, fixed_inr=0.0):
return usd * rate * (1 + card_markup_pct / 100) + fixed_inr
def gateway_paid_inr(usd, rate):
wallet = usd * rate * FOREX_BUFFER * PLATFORM_FEE
return wallet / (1 - TOPUP_LOSS)
def breakeven_card_markup_pct():
return (FOREX_BUFFER * PLATFORM_FEE / (1 - TOPUP_LOSS) - 1) * 100
usd = usd_cost(20, 4, 2.0, 10.0) # illustrative volumes and prices
rate = 90.0 # illustrative USD/INR
for m in (0, 3.5, 10, 12.9, 15):
d = direct_inr(usd, rate, m)
g = gateway_paid_inr(usd, rate)
print(f"markup {m:>5}% direct {d:9.2f} gateway {g:9.2f} gateway minus direct {g - d:8.2f}")
print("break-even markup:", round(breakeven_card_markup_pct(), 2), "%")
Output from my run (the USD total is $80, so the plain conversion is ₹7,200):
markup 0% direct 7200.00 gateway 8129.86 gateway minus direct 929.86
markup 3.5% direct 7452.00 gateway 8129.86 gateway minus direct 677.86
markup 10% direct 7920.00 gateway 8129.86 gateway minus direct 209.86
markup 12.9% direct 8128.80 gateway 8129.86 gateway minus direct 1.06
markup 15% direct 8280.00 gateway 8129.86 gateway minus direct -150.14
break-even markup: 12.91 %
So at this invented volume, the gateway premium over a 3.5% card is about ₹678 a month. That is the cost of avoiding a card problem, an extra account and dollar funding. Whether it is worth ₹678 is for you to judge; for an hour of a developer's time it often is.
The same rule scales in the other direction. At ten times the volume the premium becomes about ₹6,800 a month, and at that point it is a line item someone will question.
When is direct Anthropic the better choice?
| Situation | Why direct wins |
|---|---|
| You already have a USD-capable corporate card | The premium buys you nothing |
| Monthly spend is large enough that about 10 to 13% is a real budget line | Per-token cost dominates |
| You need a contract, DPA or enterprise terms with Anthropic itself | A gateway is a middle party |
| You rely on Anthropic-only beta features | The gateway docs warn some may behave differently, so you must test |
| You need Anthropic's own console, workspaces and usage reports | The gateway has its own dashboard, not Anthropic's |
When does the gateway win?
| Situation | Why the gateway wins |
|---|---|
| Your cards are rejected for international payments | Direct is not available at all, so the premium is the price of access |
| You want to top up with UPI, net banking or an Indian card | Minimum top-up ₹50, no dollar account |
| You want a hard rupee cap per key or per teammate | Per-key INR budgets stop a runaway script, with HTTP 402 when reached |
| You use several providers | One OpenAI-compatible key and one wallet across providers |
| Your bookkeeping wants one INR invoice trail | Everything is a rupee top-up rather than a card line in USD |
| Spend is small and unpredictable | A ₹50 top-up has no monthly commitment, and credits last a year |
The setup for the gateway route, including the Anthropic SDK base URL, is in how to use the Claude API in India with UPI. If you only need the cheapest model for a job, the catalog ranking script compares INR prices across models.
What other costs change the comparison?
Several things sit outside the simple formula:
- Claude's own multipliers apply either way. Per the pricing docs, cache writes bill at 1.25 times the input price, cache reads at 0.1 times, and prompts above 200K tokens at 2 times input. These are Anthropic's rules passed through, so they do not change the direct-versus-gateway ratio.
- Server-side tools such as web search are billed separately by the provider ($10 per 1,000 searches on Claude models per the AICredits docs) and converted like everything else.
- Failed payments cost time. If a rejected card means a day of back-and-forth, that is a cost your spreadsheet should include. Put it in
fixed_inrin the function above. - Rate drift. Both routes move with USD/INR. The gateway's buffer is a flat 5% on top of the live rate, which protects the provider from drift and costs you the same 5% whether the rupee moves or not.
- Wallet float. If you top up ₹10,000 and spend ₹2,000 a month, ₹8,000 waits in the wallet. Top up in smaller steps to limit it, mindful that each top-up loses the same percentage.
A decision rule you can reuse
- Do you have a payment method Anthropic accepts, and are you comfortable funding it in dollars? If no, use the gateway and stop here.
- If yes, estimate monthly USD spend and run the function with your bank's real markup.
- Multiply the monthly gap by 12. Does that exceed what you would pay for the convenience: INR budgets, UPI, multi-provider access?
- If direct wins by a margin that matters, go direct. Otherwise take the gateway, set a key budget and review the usage log monthly.
- Re-run the numbers when the rate, your volume or the fee structure changes. Do not trust a spreadsheet older than a quarter.
If the gateway fits, you can start at AICredits with a ₹50 top-up and test a few real requests. The AICredits docs and the free cost calculator show live INR prices, which beat any number in this post. For migration steps in either direction, see the direct-to-gateway migration checklist, and for how the rupee-priced Claude stacks against others, GPT, Claude and Gemini in INR.
