Track Atlas · OPC ATLAS

Stablecoin Payment Rails: The B2B Money Layer Crypto Always Promised

Stripe paid $1.1B for Bridge in 2024. The GENIUS Act paved the rest of the road in 2025. 2026 is the year B2B leaves SWIFT.

Updated 2026-05-10

Stablecoin payment rails are the most-justified piece of crypto infrastructure in a decade. USDC supply crossed $50B in early 2026; total stablecoin supply sits at $200B+, with Tether dominant but Circle's share growing post-IPO. Stripe's $1.1B acquisition of Bridge in October 2024 was the legitimacy flag — every payments incumbent and every fintech now has a stablecoin team. Visa launched stablecoin settlement pilots with USDC and EURC across LATAM and SEA; Mastercard ships Multi-Token Network production rails; PayPal's PYUSD crossed $1B in market cap in March 2026. The regulatory clarity arrived with the GENIUS Act (signed Jan 2025 in the US), MiCA Article 23-58 stablecoin rules effective Jul 2024 in Europe, MAS Stablecoin Framework live in Singapore, and Japan's revised Payment Services Act allowing licensed banks and trusts to issue. This is now real B2B payment infrastructure, not crypto narrative. The honest read for solo founders: building a new stablecoin issuer is impossible (banking + treasury + reserve attestation costs $10M+ and 18-24 months). But the application layer is wide open — global payroll, B2B invoicing, supplier financing, FX corridor specialists, remittance, merchant acquirers — and any solo or small team with payment-ops experience plus crypto literacy can build a real business with $300K-$3M of capital, partnering with Bridge / Circle / Conduit for the underlying rails.

The stack has settled into five layers. (1) Issuers — Circle (USDC, public since June 2024 IPO, $50B+ supply), Tether (USDT, ~$140B supply, profitable from T-bill carry, $13B 2024 net income), PayPal (PYUSD, $1B+ supply Mar 2026), Paxos (USDP + multi-bank stablecoins). (2) B2B payment rails — Bridge (acquired by Stripe for $1.1B, Oct 2024), Conduit ($16M raised by Helios, focused on B2B FX corridors), BVNK ($50M Series B, multi-issuer payment platform), Fnality (institutional GBP/USD/EUR settlement). (3) Merchant + on-ramp — Coinbase Commerce, BitPay (still active for merchant acceptance), MoonPay, Transak. (4) Specialized verticals — Rain (corporate cards in USDC, $24M raised), Mural Pay (LATAM B2B), Stable (Brazil), Decta-Stable, Layer2 Financial (Canadian B2B). (5) Settlement chains — USDC native on Solana, Base, Arbitrum, Avalanche, Stellar; speed and gas costs now competitive with traditional rails (Solana USDC transfer: ~$0.001, ~2s; Base: ~$0.002, ~2s; vs SWIFT: $20-50, 1-3 business days). 2026 inflections: (a) Stripe rolled out USDC payouts to 100+ countries via Bridge in Q1 2026, instantly normalizing stablecoin-denominated B2B; (b) the GENIUS Act's 1:1 high-quality liquid asset backing requirement + monthly attestations made US-issued stablecoins indistinguishable from money-market funds for treasury purposes; (c) Tether began MiCA compliance pivots after Q4 2025 delistings on European exchanges. Cautionary tales: Stably and Reserve both struggled to find product-market fit at the issuer layer; the Terra collapse (2022) still casts a regulatory shadow on algorithmic stablecoins — GENIUS Act explicitly bans them.
Circle (USDC) 2013 · NYSE: CRCL · IPO Jun 2024
$50B+ USDC supply · $1.7B 2024 revenue

The compliant default. Multi-chain, regulated, public. Circle Programmable Wallets + Circle Mint + Cross-Chain Transfer Protocol (CCTP) is the "Stripe API of stablecoins." Where regulated fintechs and Fortune 500 treasurers integrate first.

Bridge (Stripe) 2022 · acquired by Stripe $1.1B (Oct 2024)
Powers Stripe's 2026 USDC payouts to 100+ countries

The most consequential M&A in fintech 2024. Bridge ported full B2B stablecoin orchestration into Stripe's 1M+ business customer base. Now Stripe's strategic spine for cross-border B2B payments. Hard to compete with directly.

Tether (USDT) 2014 · private · $140B+ supply
$13B 2024 net income from T-bill carry

Dominant by supply; controversial on transparency but compliant enough for offshore B2B and remittance corridors. Pivoting to MiCA after EU exchange delistings late 2025. Still the #1 settlement asset in LATAM, MENA, SEA OTC.

BVNK 2021 · Series B · $50M (Dec 2024)
Multi-issuer B2B payment platform · $10B+ volume processed

UK-based, EMI-licensed, multi-issuer (USDC + USDT + EURC). Strong on European corridor. The closest pure-play competitor to Bridge that's still independent. Targets mid-market businesses doing $10M+ cross-border.

Conduit (Helios) 2022 · Series A · $16M (Sep 2024)
Specialist in LATAM + Africa B2B corridors

Focused on the corridors where SWIFT is most broken — Brazil, Mexico, Nigeria, Kenya. Stablecoins land settlement, local payout via partner banks. The cleanest "real B2B SaaS" play in the stack.

Rain 2022 · Series A · $24M (2024)
Corporate cards in USDC · 100+ DAO + crypto-native treasuries

Visa BIN sponsor + USDC backend. Issue corporate cards that draw from USDC treasury, settle in fiat for merchant. The clearest vertical: crypto-native companies want corporate cards without the FX friction.

Mural Pay 2023 · Seed · $5.6M (2024)
LATAM B2B payouts · 30+ countries

Global payroll + contractor pay using stablecoins, with last-mile local-currency settlement. Where remote-first companies route LATAM contractor payments. Strong YC W23 alumni network as design partners.

Paxos 2012 · regulated trust company · $500M+ raised
USDP + PYUSD (issued for PayPal) + USDG

The white-label stablecoin issuer for PayPal, MercadoLibre, Robinhood, Worldpay. NYDFS-regulated trust. Less consumer brand than Circle but the partner of choice for incumbents needing a regulated issuer without owning the brand.

🟢 Green light · Consider entering
You have payment-ops or B2B fintech experience

This track is not won by crypto-natives — it's won by Stripe / Adyen / Wise / Airwallex alumni who can speak treasurer-language. If you know what a wholesale FX corridor smells like, you have a 5x edge on a crypto-only founder.

You pick a specific corridor or vertical

"Generic global stablecoin payments" is Bridge / BVNK / Conduit. Open verticals: Brazilian exporters paying SE Asia, Nigerian fintechs paying US suppliers, Japanese SMEs receiving from Southeast Asia, contractor payroll for remote-first SaaS. Pick one.

You have a compliance / banking partner from day one

You need MSB (US), EMI or PI (UK / EU under MiCA), MAS PI (Singapore), or partner with an existing licensee like Bridge / BVNK. No license = no real business. Plan licensing before product.

🔴 Red flag · Hold off
You think you can launch a new stablecoin

GENIUS Act + MiCA make this a $10M-$30M, 18-24 month regulatory build. Reserve attestation, trust company, banking partner, audit firm. Solo or small-team launches are dead. Partner with Paxos or use existing issuers.

Your business model assumes regulatory arbitrage

"We'll incorporate offshore and serve US customers" is a 2022 playbook. OFAC, FinCEN, and state regulators caught up. Tornado Cash precedent applies. Plan licensed-corridor-first, not regulatory dodging.

You're trying to disintermediate Visa / Mastercard at scale

Card networks are co-opting stablecoins, not being displaced. Visa USDC settlement pilots, Mastercard Multi-Token Network, both ship 2025-2026. Build with them or stay in B2B settlement where they're weaker.

VC-backed corridor specialist

Ex-Stripe / Wise / Airwallex operator with one specific corridor expertise

Capital
$3M-$10M seed
Time commitment
36 months minimum
First move
Pick one corridor (Brazil-US, Nigeria-EU, India-SEA). Partner with Bridge or BVNK for stablecoin rail, local bank for last-mile. Land 10 paying SMEs at $500-$3K/month before raising A.
Vertical SaaS with embedded stablecoin payouts

Founder with a specific industry network (logistics, freelancer platforms, e-commerce)

Capital
$500K-$3M seed
Time commitment
60+ hrs/week for 24 months
First move
Embed Bridge / Conduit / Mural Pay as the payouts engine inside a vertical SaaS (logistics ops, freelancer platform). Charge SaaS subscription + take rate. The stablecoin layer is invisible to end-users.
Compliance + treasury advisory

Ex-banking, ex-Big-4-financial-services consultant with treasury experience

Capital
$30K-$200K bootstrap
Time commitment
30-50 hrs/week
First move
Sell "stablecoin treasury setup + compliance playbook" to mid-market companies wanting to add USDC to their treasury or pay contractors via stablecoins. $20K-$100K per engagement. Build to a recurring book.

Worth reading

Communities

People to follow

Adjacent tracks

  • Embedded Wallet SDKWallet SDKs are the front-end for any consumer-facing stablecoin product. The two layers stack.
  • Crypto On-RampDirect adjacency — most stablecoin businesses bundle a fiat on-ramp via MoonPay or Coinbase On-Ramp.
  • Agentic On-chain UXMost agent-driven transactions settle in stablecoins. The rails layer is upstream.

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