If your micro-SaaS or Telegram bot takes crypto payments, the fee structure of your gateway quietly decides how much revenue you actually keep. Most processors charge a percentage of every payment. A few charge a flat monthly fee. Which one is really cheaper? The answer is uncomfortable — and it depends entirely on your volume. So let's do the math honestly, including the point where the percentage gateway wins.
The honest math
The top percentage gateways charge 0.5% per transaction (NOWPayments, Plisio); Coinbase Commerce, CoinGate and BitPay sit at 1% or more. It sounds small. Here's what 0.5% actually costs at different monthly volumes, next to CleanTrade's flat $29.99 Pro plan:
| Monthly volume | 0.5% gateway fee | Flat $29.99 | Winner |
|---|---|---|---|
| $1,000 | $5 | $29.99 | percentage by $24.99 |
| $3,000 | $15 | $29.99 | percentage by $14.99 |
| $6,000 | $30 | $29.99 | ~break-even |
| $10,000 | $50 | $29.99 | flat by $20.01 |
| $50,000 | $250 | $29.99 | flat by $220.01 |
On the cheaper $9.99 Starter plan the break-even drops to roughly $2,000/month. Below that, a percentage gateway is genuinely cheaper — and any honest flat-rate provider should say so out loud.
Why percentage fees still sting
- They scale against you. The more your micro-SaaS earns, the more the gateway earns from you. A flat fee stays flat. Your cost structure should be predictable, not a bet against your own growth.
- They stack with everything else. Network fees, FX spread on crypto-to-fiat, withdrawal fees — the "0.5%" is rarely the only cost.
- They punish high-ticket items. Sell a $499 course at 1%? That's ~$5 per sale. At volume, it adds up.
The real reason to switch isn't the fee — it's custody and DX
Flat vs percentage is a real question, but it's the second question. The first: where does the money live?
- Custodial gateways hold your funds on their balance until you withdraw — and can freeze or delay payouts.
- Non-custodial means the payment lands directly on your own wallet from the first second.
CleanTrade is non-custodial and flat: no KYC, no approval queue, API key in about a minute, webhooks with retries, ~30-second detection via unique-amount matching (no smart contracts, no gas fees).
Three lines of code
from cleantrade import Client
client = Client("sp_live_YOUR_KEY") # API key in ~a minute, no KYC
order = client.create_order(product_id="course.zip") # unique amount, e.g. 19.57
# show order.amount + order.wallet to the buyer; webhook fires with tx_id when paid
Real SDK, open source: github.com/smile-sk/cleantrade-python
Plans
| Plan | Monthly | Yearly (12 months for the price of 10) | Orders/mo |
|---|---|---|---|
| Free | $0 | — | 5 |
| Starter | $9.99 | $99.90 | 100 |
| Pro | $29.99 | $299.90 | 3,000 |
| Business | $79.99 | $799.90 | Unlimited |
When percentage wins (honesty, again)
If you process under ~$2,000/month, a 0.5% gateway is cheaper than any flat plan. That's exactly why CleanTrade has a Free tier — start free, grow into flat pricing on the same integration, without switching gateways twice.
Bottom line
Flat pricing isn't a magic 10x saving — at realistic competitor rates it wins by a margin, not an order of magnitude. The bet worth making is self-custody and DX: a gateway that never touches your money and takes three lines of code to integrate.
Try the calculator — it does this math for your numbers: pay.cleantrade.info
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