The questions to ask a stablecoin payments vendor before you sign: licensing, custody, pricing, rails, compliance, failure handling, security, and exit.
To run due diligence on a stablecoin payments provider, map your money flow first, then send the provider a written questionnaire covering licensing, custody, pricing, rails, compliance operations, failure handling, security, and exit terms. Ask for documents that back each answer, test the failure cases in a sandbox, and pilot one corridor in production before you commit volume.
The 30 questions below are the ones that separate providers in practice. Each comes with what a good answer sounds like. Copy them into your vendor questionnaire.
Answers are cheap. Documents are harder to fake.
| Document | What it tells you |
|---|---|
| License and registration list | Who can legally move your money, and where |
| SOC 2 Type 2 report | Whether security controls worked over a period, not just on paper |
| Penetration test summary | Whether an outside team tried to break in, and what they found |
| AML and sanctions policy statement | How screening and escalation actually work |
| Flow-of-funds diagram | Who holds the money at every step |
| Sample itemized quote | Every fee, before you sign |
| Incident history | How the provider behaves on a bad day |
| Contract: termination, notice, data export | What happens when the relationship ends |
One red flag is a follow-up call. Two is usually the end of the evaluation.
Weight the categories by what your flow needs, score each answer from 1 to 5, and multiply.
| Category | Suggested weight | Questions |
|---|---|---|
| Licensing and regulation | 20% | 1 to 5 |
| Custody and flow of funds | 15% | 6 to 10 |
| Pricing, liquidity, and pre-funding | 15% | 11 to 15 |
| Rails, coverage, and settlement | 15% | 16 to 19 |
| Compliance operations | 15% | 20 to 24 |
| Integration and operations | 10% | 25 to 27 |
| Security, data, and exit | 10% | 28 to 30 |
A payroll platform might move weight from integration to rails and settlement. A regulated bank will likely push licensing and security higher. The weights matter less than using the same sheet for every vendor. For a shorter pass, how to choose a stablecoin API narrows it to six questions, and how to choose an on/off ramp provider adds a test for each criterion.
Short answers to the questions buyers ask most:
failed and refunded outcomes with sentinel amounts, so you can test failure paths before go-live.Send this questionnaire to every provider on your shortlist in the same week, with the same deadline, and score the answers on one sheet. Then take the top two into a sandbox and force a failed payout on each. How a provider handles failure tells you more than any demo. For the basics of how the flows work, start with stablecoin payments explained.
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