Lumx vs Circle

Which should you choose, Lumx or Circle?

These are not alternatives for the same job, so the question is which job you have. If you need USDC or EURC itself, at issuer prices, with 1:1 redemption and custody at Circle National Trust, you need Circle Mint, and only an institution that qualifies can open one. If you are a bank or PSP that wants to settle with counterparties in other countries over a rule-governed stablecoin network, you join CPN, either directly, operating your own wallets, or through Managed Payments, where Circle runs the subaccounts and a fintech without its own digital-asset licence can still participate.

If your customers are businesses in Brazil, Mexico, Colombia, the US, the eurozone or the UK who need an account in their own name and a payout that lands over the local rail with a purpose code, you need Lumx. Lumx does not mint USDC and does not run a network; it holds USDC and USDT already in circulation, converts on a locked quote and pays out over PIX, SPEI, PSE, Bre-B, ACH, Fedwire, SEPA, Faster Payments and SWIFT, with KYB/KYC, Sumsub token sharing and Chainalysis monitoring inside the same API.

Most teams end up with both: Circle as the issuer whose token they hold, and Lumx as the rails layer that moves it in and out of local currency. A Lumx customer already uses Circle's product every time a USDC balance settles.

What is Circle?

Circle Internet Group, Inc. (NYSE: CRCL, listed on 5 June 2025) is the issuer of USDC and EURC, and also issues cirBTC and USYC. USDC is issued natively on 38 blockchains as of 16 September 2026, per circle.com, including Ethereum, Polygon, Base, Tron, Solana, Arbitrum, Avalanche, Stellar and Aptos; EURC is issued on Ethereum, Avalanche, Base, Solana and Stellar. Circle Mint lets institutions, typically exchanges, fintechs, banks and trading firms, mint and redeem those stablecoins directly, funding by wire, PIX in Brazil or CUBIX in Mexico, with assets custodied at Circle National Trust, a federally chartered trust bank. Circle Payments Network, operated by Circle Technology Services, LLC, connects originating and beneficiary financial institutions so they can settle cross-border payments in USDC or EURC; per developers.circle.com, CPN is for "a bank, fintech, or crypto platform" and offers direct API access or a Managed Payments mode in which Circle runs the underlying subaccounts. Circle's developer stack adds programmable wallets, a Gas Station, a Compliance Engine, CCTP for moving USDC across chains, StableFX for on-chain FX, an MCP server and Circle Skills, and Arc, Circle's own Layer-1 blockchain, with mainnet scheduled for 16 September 2026. Circle Internet Financial, LLC holds US state money transmitter licences and a New York virtual currency licence; Circle Internet Financial Europe SAS is a French electronic money institution issuing USDC and EURC as MiCA e-money tokens; Circle International Bermuda Limited holds a Bermuda digital asset business licence.

Circle is Lumx's supplier: the USDC that Lumx custodies, converts and pays out is issued by Circle. Lumx does not compete with Circle on issuance and does not sit on CPN as an operator.

What is Lumx?

Lumx is stablecoin payments infrastructure for businesses that move money between Latin America and the rest of the world: one API to collect, hold, convert, and pay out in BRL, MXN, COP, USD, EUR, and GBP or in USDC and USDT, over local rails such as PIX, SPEI, PSE, ACH, FEDWIRE, SEPA, and Faster Payments, with SWIFT and on-behalf-of payments and collections (POBO and COBO) in USD, EUR, and GBP, plus named virtual accounts, custodial wallets, and KYB/KYC built in.

Lumx was founded in 2022 in Rio de Janeiro and is backed by BTG Pactual, the largest investment bank in Latin America. Custodial wallets run in production, segregated per customer, on Ethereum, Polygon, Base and Tron, with Stellar for USDC on-ramps in BRL. In Brazil, Lumx SPSAV Ltda operates under Article 88 of Central Bank Resolution 520/2025; in the US, Lumx US OP LLC is a FinCEN-registered MSB (#31000316459619). Lumx processes more than $2B in annualized payment volume (as of September 2026). Customers include Nomad, Logcomex and Conta Simples.

How do Lumx and Circle compare?

Model. Circle sells the stablecoin and the network; Lumx sells the last mile. Circle Mint is an institutional counter: qualifying customers wire, PIX or CUBIX fiat in and receive USDC or EURC at par, or redeem the other way, and there is no local-currency account in the customer's name and no payout rail beyond funding and redemption. CPN moves USDC between an originating institution and a beneficiary institution, each of which handles its own local fiat leg; the rails a payment can land on are whatever the beneficiary institution operates, discovered live from a configuration endpoint. Lumx operates the local fiat leg itself: a named account in BRL, MXN, COP, USD, EUR and GBP, nine local rails plus SWIFT in USD, and a locked quote from stablecoin to local currency, all in one API with KYB/KYC inside. A Lumx customer never touches Circle Mint or CPN; a CPN participant may well use a provider like Lumx as the beneficiary institution's rails.

Custody. Circle's custody is issuer custody: the reserves behind USDC and the assets in Circle Mint accounts are held by Circle National Trust, an OCC-chartered trust bank, and Circle Wallets offer developer-controlled or user-controlled MPC wallets as a separate developer product. Lumx's custody is operational: USDC and USDT held per customer on Ethereum, Polygon, Base and Tron, ready to pay out to a local rail. The two are not substitutes. A business does not choose between holding USDC at Circle and holding it at Lumx; it holds Circle's token, and the question is whether it needs Lumx's rails to move it.

Pricing and compliance. Circle Mint is free for institutions that qualify, with API integration and CPN access by contact; only Circle Wallets publishes a price list. Lumx charges a monthly platform fee plus usage-based per-transaction and virtual account fees, with transparent FX on locked quotes and no pre-funding, and does not publish plans. On regulation, Circle holds the issuer's licences: US state money transmitter licences and a New York virtual currency licence, a French EMI under MiCA, a Bermuda digital asset licence and a national trust bank charter for custody. Lumx operates under Article 88 of Central Bank Resolution 520/2025 while its VASP authorization is processed, and is a FinCEN-registered MSB in the US, with EUR and GBP running through banking partners. CPN enforces the Travel Rule and vets each participant's licensing; Lumx runs KYB/KYC with Sumsub token sharing, Chainalysis monitoring, and purpose codes and holder relationships on every payment. These are different regimes for different roles, and neither is a gap in the other.

When is Lumx the better fit?

• You need a local account in the customer's name. BRL with agência and conta, MXN CLABE, COP, USD routing and account, EUR IBAN, GBP sort code and account. Circle Mint issues no local-currency accounts. See USDC to BRL, USDC to MXN, USDC to COP and USDC to EUR.

• You pay out over a local rail with a purpose code. PIX, SPEI, PSE, Bre-B, SEPA and Faster Payments are Lumx rails; on CPN the local rail belongs to the beneficiary institution.

• You are a fintech, not a network member. Lumx accounts open in a sandbox on sign-up; Circle Mint is for qualifying institutions and CPN participation is by application.

• You need one API for both directions. Lumx collects into a named account and pays out from the same balance, with a locked quote in between. See BRL to USDC.

• You settle in USDT as well as USDC. Lumx custodies and pays out both; Circle's products are built around USDC and EURC.

Where does Circle fit?

Circle does things Lumx does not do and cannot do, and this page should say so plainly.

• Issuance. Only Circle mints and redeems USDC and EURC. Lumx holds and settles Circle's token; it does not issue one.

• Direct 1:1 redemption. Circle Mint gives qualifying institutions par redemption with reserves and assets custodied at Circle National Trust, a federally chartered trust bank.

• A shared settlement network. CPN gives banks, PSPs and fintechs a rule-governed network with Travel Rule enforcement, a documented request-for-information flow, and a Managed Payments path for fintechs that do not hold their own digital-asset licences.

• Chain reach. USDC on 38 blockchains as of September 2026 and EURC on five, with CCTP to move USDC between them. Lumx settles on four chains plus Stellar for BRL on-ramps.

• Developer stack. Programmable wallets with a Gas Station and Compliance Engine, StableFX for on-chain FX, an MCP server, Circle Skills, SDKs in several languages and Arc, Circle's own Layer-1.

• Public-company scale and licensing. A NYSE listing, state-by-state US licences, a French EMI under MiCA and a Bermuda licence.

Can you use Lumx and Circle together?

Every Lumx customer already does. The USDC in a Lumx wallet is Circle's token; Lumx adds the named accounts and local rails around it. An institution with a Circle Mint account can mint USDC at par and move it on-chain into Lumx custody to pay out over PIX, SPEI, PSE or Bre-B. A CPN participant looking for a beneficiary-side rails provider in Brazil, Mexico or Colombia is looking for what Lumx does. Both settle USDC on Ethereum, Polygon and Base, so the hand-off is an on-chain transfer, and both send signed webhooks, so the reconciliation model is the same on each side.

How do you migrate from Circle to Lumx?

You do not migrate off Circle; you add Lumx as the fiat leg. The steps below assume a team that holds USDC through Circle Mint or settles it over CPN and needs local accounts and payouts in Latin America, the eurozone or the UK.

1. Keep your Circle Mint account or CPN participation. Minting, redemption and network settlement stay where they are. Lumx takes over at the point where USDC needs to become a local-currency balance or payout.

2. Open a sandbox at dashboard.lumx.io. New accounts start in a sandbox with mock banking partners; magic numbers on taxId force approved, rejected or pending verification.

3. Onboard the customers who need local accounts. Lumx runs KYB for businesses and KYC for individuals, with Sumsub token sharing where a prior verification exists, and adds a holder relationship and a purpose code on each payment.

4. Provision named accounts. BRL, MXN, COP, USD, EUR and GBP accounts in each customer's name, so local collections arrive on local details instead of through a wire to a Mint account.

5. Fund Lumx wallets on-chain. Transfer USDC from Circle Mint or a CPN settlement wallet to the Lumx custodial wallet on Ethereum, Polygon or Base, then request a locked quote (30 seconds free, one or five minutes for a fee) to convert and pay out.

6. Subscribe to webhooks and reconcile. Send Idempotency-Key on every mutation, match Lumx payout references and Circle transaction hashes for one cycle, then move production traffic. Read the docs or talk to us.