Same-day settlement isn't one event. It's a chain: a quote, a conversion, a stablecoin transfer, and an off-ramp into the receiving currency. Most of that chain can happen in minutes. The part that decides whether the whole thing lands same-day is the edges — how fast money gets into the system and out the other side.
That's the part an API actually controls. Modality's settlement layer doesn't just move a token faster than a wire. It exposes each step — quoting, conversion, routing, settlement — as something a developer can call, check, and build a payment flow around, instead of waiting on a back-office process to confirm itself.
The Stablecoin Leg vs the Rest of the Trip
The stablecoin leg itself is fast by default. RLUSD, USDC, and USDT settle on BTC, ETH, SOL, and XRP chains around the clock, including weekends and holidays — no cut-off times, no "we'll process it Monday." Correspondent banking can't say that: it's gated by banking hours and takes 2–5 business days per hop.
On/off-ramp speed depends on the rail on the other end — SEPA, SEPA Instant, SWIFT, Faster Payments, local schemes. Modality connects to all of them, across 63 countries, so the ramp is as fast as the local rail allows, not as slow as the slowest link in a correspondent chain.
Why 630 Direct Pairs Is an API Design Choice, Not Just a Feature
Routing EUR to TRY without a forced USD detour isn't cosmetic — it removes a hop, and every hop is where delay and spread get added. 630 direct pairs across 36 currencies means the API can quote one spread, once, and settle same-day far more often than a system built around a mandatory USD conversion in the middle.
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FAQ: Same Day Cross Border Settlement API
Is there an API for same-day cross-border settlement?
Modality's settlement API settles the stablecoin leg same-day, 24/7, across 630 direct currency pairs -- versus the multi-day timeline correspondent-banking rails typically take.
What problem does stablecoin settlement solve for B2B payments?
It replaces the 1.5-3% (a Modality estimate) cost and 2-5 day wait of correspondent banking with a single quoted spread and 24/7 settlement across direct currency pairs -- a faster settlement rail, not a new asset class to speculate on.
What is a stablecoin settlement platform?
The software layer between a business and licensed institutions that handles quoting, conversion, routing and settlement over stablecoin rails -- non-custodial when licensed partners, not the platform, hold the funds.
Note: the 1.5–3% cost and 2–5 business day figures are Modality estimates for a typical correspondent-bank route, not a published benchmark. Actual cost and timing vary by corridor, currency pair, bank and amount.
Sources
- Federal Reserve Financial Services, Fedwire Funds Service operating hours frbservices.org
- Nacha, Same Day ACH rules (Phase 3), effective 2018 nacha.org