Circle Payments Network: how it works and where it stops

The Circle Payments Network, or CPN, is a payment network operated by Circle, the issuer of USDC, that lets vetted financial institutions settle cross-border payments directly with each other in regulated stablecoins. It went live in May 2025 and has become the most visible attempt to turn stablecoin settlement from a bilateral arrangement into an organized network. This page explains how it works, who runs it, how fast it is growing, and, just as importantly, where its scope ends.

How a CPN transaction works

CPN divides every payment between two roles. An Originating Financial Institution (OFI) acts for the sender: it verifies the customer, runs its checks, converts local currency into stablecoins, and sends them. A Beneficiary Financial Institution (BFI) receives the stablecoins, converts them into local fiat, and pays the end recipient.

The middle leg, the part that used to travel through a correspondent chain, becomes a single stablecoin transfer on a public ledger. Settlement runs in USDC and EURC, and participants choose which supported chains they operate on, with Ethereum, Solana, Polygon, and EVM-compatible networks supported. Because the transfer settles in seconds and runs around the clock, participants can reduce the pre-funding of local accounts that conventional payout networks require.

The fiat legs at each end remain conventional. The OFI still collects fiat from the sender through domestic rails, and the BFI still pays out through domestic rails. CPN organizes the middle.

Who governs it

Circle Technology Services operates the network and sets its standards. It writes and maintains the CPN Rules, defines the protocol and APIs, and vets every participant for licensing, compliance, operational risk, and security before admission. Circle states that in this capacity it is not a money transmitter and does not hold or move funds; participating institutions settle directly with each other.

Compliance runs through the network’s design. The Travel Rule is enforced in line with FATF guidelines, and a policy layer Circle calls the Trust Engine lets each participant define criteria for the transactions and counterparties it will accept, so institutions with different risk appetites can share one network.

Two structural facts follow from this design, and both are worth stating plainly rather than argued over. First, CPN is a branded network with a single commercial operator: Circle sets the rules, vets the members, and evolves the protocol. Second, settlement today runs in Circle’s own coins. The design is described as stablecoin-agnostic, and other regulated coins may be added, but as of mid-2026 the settlement asset and the network operator have the same parent.

How fast it is growing

CPN’s growth curve is steep. Circle reported $3.4 billion in annualized transaction volume in its January 2026 report, and $8.3 billion annualized, based on trailing 30-day activity, by 31 March 2026. The published partner roster is dominated by payment providers and remittance specialists, including dLocal, Coins.ph, Conduit, Tazapay, and RedotPay, spanning payout corridors across Latin America, Africa, and Asia.

Two 2026 developments extend the network’s reach. In April 2026 Circle launched CPN Managed Payments, which lets institutions use the network without holding or managing digital assets themselves, removing the largest operational objection for conservative adopters. And Circle has named Santander, Deutsche Bank, Société Générale, and Standard Chartered as banking advisors on the network’s design, a signal of where it wants the membership to go, even though the live roster remains fintech-heavy.

For scale, the context matters: $8.3 billion annualized is fast growth from a small base. Wise alone moved $243.5 billion in cross-border volume in its 2026 fiscal year, and SWIFT’s member banks send over $300 billion a day through gpi.

Where it stops

None of what follows is criticism; it is scope, and every network has one.

A payment settles on CPN when both ends are inside the network. Reach therefore depends on participant coverage in each corridor, which is growing but far from universal. Where the network has no BFI, there is no payout.

The settlement asset is a second boundary. Value on CPN moves as USDC or EURC. An institution whose policy, regulator, or counterparty requires settlement in tokenized deposits, in another issuer’s stablecoin, or across conventional fiat rails is outside the network’s current scope. That matters because the wider landscape is not converging on one asset: bank consortium networks settle in commercial bank money, Fnality settles in central-bank-money-backed balances, and banks are issuing their own deposit tokens. We map that landscape in stablecoin settlement infrastructure and examine why these networks do not interconnect.

Finally, CPN organizes the stablecoin leg, and the compliance obligations around a payment remain with the institutions at each end. The network vets its members and enforces the Travel Rule, but each institution still operates its own screening, its own policies, and its own audit trail in its own systems.

Where Frame fits

Frame is the settlement layer for global finance: one integration to orchestrate payments at scale across fiat rails, stablecoins, and tokenized deposits, with compliance enforced on every transaction and settlement in seconds instead of days.

CPN is one rail on the map Frame spans. Frame is rail-neutral: a payment enters through one integration and Frame routes it across whichever rail fits the corridor, the counterparty, and the policy that governs it, whether that is a regulated stablecoin network, a conventional fiat rail, or a tokenized deposit. Where CPN is the right rail for a flow, a rail-neutral layer routes to it; where a corridor, asset, or policy requires something else, the same integration reaches that too. And because Frame’s Rules Engine evaluates every transaction inside settlement, a transfer that cannot satisfy its governing policies does not settle, on any rail, with verifiable evidence produced for every transaction that does.

For banks, payment providers, exchanges, platforms, and enterprises, the practical question is rarely “which network wins” but “how do we reach all of them without betting the stack on one”. That is the question a settlement layer exists to answer.