Mountain Wolf vs YEX
Both Mountain Wolf and YEX clear the checkouts our readers ask about most. Here is where the two part ways on fees and verification.
Mountain Wolf issues on Visa + Mastercard and YEX on Visa; both ask for ID + proof; only Mountain Wolf funds by bank transfer.
Mountain Wolf is the more cost-effective option for everyday spending and travel thanks to its free virtual cards, no monthly fee. YEX still clears the same checkouts in our tests, so match the table to the services you actually pay for.
Where they split
| Field | Mountain Wolf | YEX |
|---|---|---|
| Card network | Visa + Mastercard | Visa |
| Card type | Crypto Card | Crypto Card |
| KYC | ID + proof | ID + proof |
| Card issuance fee | Virtual card free | Free |
| Monthly fee | Free | Free |
| Top-up fee | 0% | — |
| FX fee | 0% | 0% |
| Crypto funding | Yes (ETH/BTC/USDT/USDC) | Yes |
| AI tool support | ChatGPT / Claude / Midjourney | ChatGPT / Claude / Midjourney |
| Risk level | Medium | Medium |
| Our rating | 9.4 | 8.4 |
| User reviews | 473 | 274 |
| Best for | All-rounder · AI subscriptions | All-rounder · AI subscriptions |
A green left edge marks the side that holds the advantage on that row, where the data gives one.
Two cards, one decision
- In our scoring, Mountain Wolf finished ahead of YEX — not by a mile, but enough to tilt a tiebreak.
- Neither card dominates every row; the right one depends on which column you care about most.
The head to head
Run the numbers against your own usage. Mountain Wolf runs free to create plus no top-up fee per top-up; YEX runs free plus no top-up fee. For one or two subscriptions the first column wins; for the rows where it leads in the table, the second does.
Questions people ask
That depends on what you spend on. Mountain Wolf scores 9.4/10 against YEX's 8.4/10 in our tests, but the two split on fees, KYC and crypto funding. Read the table above, then match it to the checkouts you actually run.
Mountain Wolf is the cheaper card to run. Both Mountain Wolf and YEX issue virtual cards for free; Mountain Wolf reloads at 0%, while YEX publishes no top-up percentage.
Mountain Wolf asks for ID + proof at signup; YEX asks for ID + proof. If a light sign-up is the priority, the one with the lower KYC label is the faster route.
Both show up in 14 of the same test scenarios, including OpenAI API, Anthropic API, Udio AI. They overlap on a good share of checkouts, so the choice between them matters most on those pages. Where one is accepted and the other is not usually comes down to the billing country and 3-D Secure handling.
Where both show up
Mountain Wolf and YEX both landed in our top picks for 14 checkouts. Grouped by category so you can jump straight to the one you actually pay for:
🤖 AI Tools & Developer Tools 5
📺 Streaming & Entertainment 3
🛍️ Cross-border Shopping 1
Their BIN ranges
Cards issued in 🇨🇦 Canada — the country guides group every range we track from there.
What our charge log shows
Every count here is a real charge attempt we placed on that range, renewals included, with the gateway response recorded. Weeks tracked is how long the range has been in the programme: