Twelve questions to ask a stablecoin settlement provider before you integrate

A due diligence checklist for stablecoin settlement providers: currencies held, direct pairs, rate lock, who holds client money, reconciliation, limits and exit.

By Modality Team · Nov 5, 2026 · 5 min read

Illustrative scenario · 22 sTwelve due diligence questions: a country count earns a red flag, a currency list earns a green one. Check your pair →
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Monday, 10:00. Twelve questions to ask. Question one: what can I hold? Two reds in questions 1 to 4. Stop. Same questions. A list for an answer. Ask in writing. Score green, amber, red. 35 account currencies, 595 direct pairs, 24/7 settlement.

Most provider pages list countries. A due diligence call is about what you can hold, what you can convert, who holds the money and what you can reconcile. These twelve questions cover that. Each has a good answer and a red flag, and the answers for Modality are given where they are public.

The twelve questions

#AskA good answerA red flag
1Which currencies can I hold a balance in?A list of currencies, by nameA country count, or "we support" without a list
2Are pairs converted directly, or through USD?Direct pairs, with the number"Most routes" or silence on the route
3Do I see the rate before I commit, and how long is it held?A quote shown first, with a stated hold timeThe rate is known only after execution
4Which institution holds client money, and what is its role in my contract?The institution's name and its role for each serviceOnly the provider's own name
5Who is my contract counterparty for each service?One clear entity per serviceA group name without entities
6What happens to the fiat leg at weekends and holidays?A rail-by-rail answer"Always instant"
7Which digital assets can I settle in?A listA category name
8Can I get a statement per currency with stable IDs?Yes, with your reference on every lineTotals only
9What are the limits and onboarding steps per corridor?Written limits and a named processCase-by-case, no document
10How is travel rule data carried with a transfer?A described data flow"We handle compliance"
11Can I withdraw balances and export history if I leave?Yes, with a stated processNo exit terms
12What happens when a payment is returned?A reason code, a time frame and an ownerA support email

How Modality answers where the answer is public

1. Currencies held. Modality holds balances in 36 account currencies:

Access depends on onboarding, eligibility and review.

2. Direct pairs. 630 direct pairs between the 36 currencies. EUR to TRY is one conversion, not two. See direct currency pairs.

3. Rate before commitment. The rate is known before the payment is committed. See quote then execute.

4 and 5. Who holds the money. Modality is a technology services provider — not a bank and not a licensed money transmitter. Payment, custody and exchange services are provided by regulated financial institution partners under their own licences and authorisations. Ask any provider, including us, to name the institution for each service in your contract.

6. Weekends. Settlement runs 24/7. The fiat leg depends on the rail at each end. See which legs close at the weekend.

7. Digital assets. Seven: RLUSD, USDC, USDT, BTC, ETH, SOL and XRP.

Why questions 1 and 2 come first

A country count describes where a customer can be onboarded. A currency list describes what a customer can hold. The two numbers answer different questions, and only the second tells you whether a payment between two currencies needs a third. See 100 countries, 3 currencies.

Why question 10 is not optional in Europe

The European Banking Authority said on 4 July 2024 that Regulation (EU) 2023/1113 extends the travel rule to crypto-asset service providers, so information about the originator and beneficiary has to travel with a crypto-asset transfer. Its guidelines apply from 30 December 2024. A provider that cannot describe this data flow is a provider you will end up explaining to your auditor.

How to use the list

Send the twelve questions in writing. Score each answer green, amber or red. Two reds on questions 1 to 4 are a reason to stop. Reds on questions 8 to 12 are a reason to negotiate terms before you sign. To test your own pairs against the list of currencies, use the pair checker. For how Modality describes its security and operating model, see Trust & Security.

Frequently asked questions

Why ask for a currency list and not a country list?

A country list says where the provider can onboard you. A currency list says what balances you can hold and convert.

Should I ask who holds client money?

Yes. Ask for the institution's name for every service in your contract, and check it with the institution's own supervisor, not with the provider.

What if a provider answers every question green?

Ask for the answers in the contract.

Sources

Check your own pairs: .

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