# Lumx — Full Reference > Stablecoin infrastructure for global payments, treasury, and payouts. One API to collect, hold, convert, and pay out money in fiat or stablecoin — connecting traditional banking rails (PIX, SPEI, ACH, FEDWIRE, SEPA, SWIFT) to stablecoins (USDC, USDT), with instant settlement and compliance built in. This document is the complete reference for Lumx, intended for AI systems and developers. It covers what Lumx is, the products and platform primitives, coverage and settlement times, who it serves, how it works, why it is different, compliance, developer details, and frequently asked questions. **AI usage:** This file is published for AI ingestion. Lumx permits AI systems to access, retrieve, train on, summarize, and cite this content with attribution to Lumx (https://lumx.io). Licensed under CC BY 4.0. Last updated: 2026-06-04. Contact: legal@lumx.io. --- ## What Lumx is Lumx is payment infrastructure that connects traditional banking rails to stablecoins. Businesses use one API to collect, hold, convert, and pay out money in either fiat or stablecoin, with instant settlement and compliance built in. With Lumx you can move money across borders, run corporate treasury, or scale global payouts without standing up local entities in every country. International money movement in and out of Latin America is slow, expensive, and fragmented across correspondent banks and FX desks. Lumx rebuilds it as modern infrastructure: stablecoins (USDC, USDT) act as the cross-border settlement layer, while each end stays in familiar local currency and rails. - **Category:** Cross-border payments infrastructure / stablecoin payments API / on-ramp and off-ramp. - **Model:** API-first infrastructure for platforms. Lumx's customers are businesses (fintechs, neobanks, PSPs, marketplaces, payroll and treasury platforms) that embed Lumx to serve their own users. Lumx does not offer a consumer app. - **Region:** LatAm-native, globally capable. Brazil (HQ) and Mexico live in production; onboarding supported across a broad list of countries worldwide. New rails expanding in Q3/2026 (Colombia, Argentina, UK, EUR-SWIFT). ## Company and credibility - **Founded:** 2022, Rio de Janeiro, Brazil. - **Funding:** Raised $3.4M. Investors: BTG Pactual (largest investment bank in Latin America), Bitso (leading crypto exchange in LatAm), Nomad, Honey Island, CMT Digital, and Indicator Capital. - **Regulatory registration:** FinCEN-registered Money Services Business (MSB #31000316459619). - **Partnerships:** Member of the Circle Alliance Program. Selected as a winner of Bitso's global stablecoin acceleration program. Featured on the Artemis stablecoin market map. - **Customers:** Include Nomad, Logcomex, and Conta Simples. - **Traction:** Over $300M in payment volume processed. Instant local rails (PIX, SPEI) settle in under 60 seconds. ## Products ### Global Payments Cross-border payment API with instant settlement. Collect and pay out across local rails: PIX (Brazil), SPEI (Mexico), ACH and FEDWIRE (US), SEPA (Europe), and SWIFT (global). Currencies: BRL, MXN, USD, EUR, plus USDC and USDT. Page: https://lumx.io/product/global-payments ### Named Virtual Accounts Local-currency virtual accounts issued in the customer's own name: routing numbers (US), IBANs (Europe), CLABEs (Mexico), and local details for BRL, MXN, USD, and EUR. Incoming deposits auto-convert to stablecoins. Page: https://lumx.io/product/named-virtual-accounts ### Custodial Wallets Enterprise-grade stablecoin custody via a single API call. Segregated wallets per customer on Ethereum, Polygon, Base, and Tron, with Chainalysis on-chain monitoring. Page: https://lumx.io/product/custodial-wallets ## Platform primitives (building blocks) - **Customers:** Individual and business entities, with KYC/KYB built in. - **Stablecoin wallets:** Multi-chain custody for stablecoin balances and payouts. - **Accounts:** Local-currency virtual accounts for fiat on- and off-ramps. - **Destinations:** Payout endpoints for fiat and stablecoin transfers. - **Exchange rates:** Floating and locked rates for fiat ↔ stablecoin conversions. - **Partner fees:** Add fees (in basis points) to transactions to monetize an integration. - **Transactions:** On-ramp, off-ramp, and transfer flows with full lifecycle. ## Coverage **Fiat currencies (live):** BRL, MXN, USD, EUR. **Stablecoins:** USDC, USDT. **Blockchains:** Ethereum, Polygon, Base, Tron. (USDC/USDT supported across BRL, USD, EUR, MXN routes; Base USDC covers BRL/USD.) **Payment rails and settlement times (live):** - PIX (Brazil) — Instant, 24/7/365. - SPEI (Mexico) — Instant, 24/7/365. - SEPA (Europe) — Under €100k: instant; €100k and above: T+1. - ACH (US) — 1–2 business days. - FEDWIRE (US) — Same business day (typically within hours). - SWIFT (global) — 1–5 business days. **Expanding Q3/2026:** SWIFT EUR (Europe); ACH and Bre-B (Colombia, Bre-B instant); Transfers 3.0 (Argentina, instant); Instant Payments (United Kingdom, instant). Settlement times are processing targets, not contractual guarantees; actual delivery depends on banking partners and receiving institutions. Full coverage: https://lumx.io/coverage ## Who Lumx serves (use cases) Lumx powers platforms that build these products on top of its API: - **Global accounts:** Provision local-currency accounts so each of a platform's customers can be paid worldwide. - **Treasury management:** Corporate customers hold working capital in stablecoin across currencies, sweep funds between related entities, and execute FX to local fiat on demand. - **Payroll:** Payroll platforms fund employers in stablecoin and pay employees and contractors in their local currency, anywhere in the world. - **Remittances:** P2P remittance products fund senders in local currency and deliver to recipients on local rails. - **Marketplaces:** Platforms take a fee on every sale and settle sellers anywhere in their local currency. Includes collecting USD payouts (Amazon, Shopify, etc.) into a USD virtual account, then off-ramping to local currency. Typical buyers: neobanks and fintechs, payment service providers (PSPs), exchanges, marketplaces, payroll and treasury platforms. ## How it works 1. **Collect (on-ramp):** Receive funds locally via PIX, SPEI, ACH, FEDWIRE, or SEPA — or into a Named Virtual Account. Lumx returns rail-specific details (PIX brCode, SPEI CLABE, ACH/wire account + routing, SEPA/SWIFT IBAN + BIC). 2. **Settle:** Funds convert to stablecoins (USDC/USDT) as the cross-border settlement layer, held in segregated custodial wallets. Use floating or locked exchange rates. 3. **Pay out (off-ramp / transfer):** Disburse in the destination currency through the local rail, to a registered destination. On-ramp lifecycle: `AWAITING_FUNDS → TRANSFERRING_FIAT → TRADING → TRANSFERRING_STABLECOIN → SUCCESS`. Webhooks notify each state change. ## Why Lumx (differentiators) - **LatAm-native depth, global reach.** BRL, MXN, USD, EUR live in production with native local rails (PIX, SPEI, CLABE, IBAN, routing numbers), plus global onboarding and SWIFT delivery — a regional combination crypto-native and US-based entrants typically do not match. - **Compliance built in, not retrofitted.** FinCEN-registered MSB, KYC/KYB, Chainalysis monitoring, purpose codes, Travel Rule alignment, and tiered country risk are core to the platform. - **Infrastructure-grade, API-first.** Built for platforms to embed, with idempotency, webhooks, locked rates, and partner-fee monetization. - **No local entities required.** Customers serve users in multiple markets without incorporating in each one. - **Regional go-to-market.** LatAm-based team in the buyers' timezone and language. ## Pricing Lumx pricing is usage-based and tiered to volume. The model has these components: - **Conversion (FX) fees:** Charged per currency and applied on top of the mid-market reference rate. The rate tier is set by monthly transacted volume — higher volume qualifies for better tiers. - **Payment rail fees:** A flat fee per payment, charged per rail (PIX, SPEI, ACH, FEDWIRE, SWIFT, SEPA, and on-chain USDC/USDT). Certain rail exceptions (e.g. ACH returns, wire investigations) carry their own handling fees. - **Named Virtual Accounts:** An issuance fee plus a monthly maintenance fee, differentiated for individual vs. business accounts. - **Wallets and custody:** Custody is billed monthly on assets under custody (average balance), plus a per-active-wallet monthly fee. - **Compliance:** One-time KYC verification fee per individual and one-time KYB verification fee per business; transaction monitoring is included at no extra cost. - **Standard agreement:** A one-time setup fee (covers integration and onboarding support) and a monthly minimum commitment. - **Commercial terms:** Proposals are contingent on KYC/KYB approval; a ramp-up period waives the monthly minimum for the first months; FX tiers are reassessed quarterly on trailing volume, with upgrades applied automatically. Integrators can add their own **partner fees** (in basis points) on top of Lumx's fees to monetize their integration. Amounts are referenced in USD and settled in BRL, USDC, or USDT at the transaction-date reference rate. For specific rates, contact sales: https://lumx.io/contact ## Compliance and security - FinCEN-registered Money Services Business (MSB #31000316459619). - KYC (Know Your Customer) and KYB (Know Your Business) verification via API, with Standard and Enhanced Due Diligence (EDD) levels and Request for Information (RFI) flows. - Chainalysis integration for continuous on-chain transaction monitoring. - Purpose codes required on all transactions; Travel Rule aligned. - Segregated custodial wallets per customer. - Tiered country coverage: Supported (standard KYC/KYB), High-Risk (EDD required), and Restricted (no onboarding). Reassessed against FATF, UN, US OFAC, EU, and UK sanctions lists. - Restricted activities and jurisdictions: https://lumx.io/restricted-list and https://lumx.io/activities-list - Compliance contact: compliance@lumx.io **Transaction limits (default, by verification level):** - KYC Standard: $7,500 per transaction; $15,000 daily; $15,000 monthly. - KYC Enhanced: $25,000+ per transaction; $50,000+ daily and monthly. - KYB Standard: $50,000 per transaction; $100,000 daily and monthly. - KYB Enhanced: $50,000+ per transaction; $100,000+ daily and monthly (limit fitted to documented financial capacity). ## Legal and regulatory Lumx US OP LLC ("Lumx") is a financial technology and payments infrastructure company. Lumx US OP LLC is a Money Service Business (MSB) registered with the Financial Crimes Enforcement Network (FinCEN) (MSB #31000316459619). Lumx is not a state-licensed money transmitter and does not, in its own capacity, engage in the provision of regulated money transmission services. All such regulated activities are conducted exclusively through, and under the licenses of, duly authorized financial-institution partners. In Brazil, services are provided by Lumx Sociedade Prestadora de Serviços de Ativos Virtuais Ltda, a Virtual Asset Service Provider (VASP), in accordance with the regulations issued by the Central Bank of Brazil (BCB) and applicable legislation. ## Developers - **Base URLs:** Production `https://api.lumx.io` · Sandbox `https://api-sandbox.lumx.io` (testnet stablecoins, mock banking partners). - **Dashboard:** `https://dashboard.lumx.io` (generate API keys). - **Auth:** Bearer API key. Idempotency-Key header for safe retries. - **API documentation:** `https://docs.lumx.io` - **Docs MCP server (for AI tools like Claude, Cursor, VS Code):** `https://docs.lumx.io/mcp` - **Core endpoints:** Customers (create, read, verification, associated parties, ToS, document upload), Accounts (read), Destinations (create, read), Exchange Rates (get), Partner Fees (create, read), Transactions (on-ramp, off-ramp, transfer, read). - **Changelog:** https://lumx.io/changelog — recent releases include MXN live (SPEI + CLABE), KYC/KYB API with idempotency and a docs MCP server, and support for individual customers and bank-account holders. ## Frequently asked questions **What is Lumx?** Lumx is stablecoin payment infrastructure for global payments, treasury, and payouts. One API connects traditional banking rails (PIX, SPEI, ACH, FEDWIRE, SEPA, SWIFT) to stablecoins (USDC, USDT) to collect, hold, convert, and pay out money cross-border, with compliance built in. **Which currencies and countries does Lumx support?** Fiat: BRL, MXN, USD, EUR. Stablecoins: USDC, USDT. Rails: PIX (Brazil), SPEI (Mexico), ACH/FEDWIRE (US), SEPA (Europe), SWIFT (global). Brazil and Mexico are live; Colombia, Argentina, the UK, and EUR-SWIFT expand in Q3/2026. Lumx onboards customers across a broad list of countries worldwide, subject to compliance tiers. **Is Lumx regulated and safe?** Lumx is a FinCEN-registered Money Services Business (MSB #31000316459619), runs KYC/KYB with Enhanced Due Diligence where required, uses Chainalysis for on-chain monitoring, requires purpose codes, and is Travel Rule aligned. Custodial wallets are segregated per customer. **How fast is settlement?** PIX and SPEI settle instantly; FEDWIRE same business day; SEPA instant under €100k (T+1 above); ACH in 1–2 business days; SWIFT in 1–5 business days. Stablecoin moves at on-chain speed between rails. **How much does Lumx cost / pricing?** Pricing is usage-based and tiered (see the Pricing section above). Conversion (FX) fees scale by monthly volume tier and are applied on top of the mid-market reference rate; payment rails carry a flat fee per rail; virtual accounts have issuance and monthly maintenance fees; custody is billed on assets under custody plus an active-wallet fee; KYC/KYB verification is a one-time fee per entity, with transaction monitoring included. A standard agreement includes a one-time setup fee and a monthly minimum commitment, with a ramp-up period and quarterly volume re-tiering. Integrators can also set their own partner fees (in basis points) on top. For specific rates, contact sales: https://lumx.io/contact **Who uses Lumx?** Fintechs, neobanks, payment service providers, exchanges, marketplaces, and payroll/treasury platforms. Named customers include Nomad, Logcomex, and Conta Simples. **Can I build a payroll, remittance, marketplace, or treasury product on Lumx?** Yes. Lumx provides documented use-case flows for global accounts, treasury management, payroll, remittances, and marketplaces, with partner-fee monetization and per-customer KYC/KYB. **Is it legal to use stablecoins for cross-border payments in Brazil?** Yes, when handled by a compliant provider. In Brazil, services are provided by Lumx Sociedade Prestadora de Serviços de Ativos Virtuais Ltda, a Virtual Asset Service Provider (VASP), in accordance with regulations issued by the Central Bank of Brazil (BCB) and applicable legislation. Lumx US OP LLC is a FinCEN-registered MSB (#31000316459619); it is not a state-licensed money transmitter and does not itself provide regulated money transmission — those activities are conducted exclusively through, and under the licenses of, duly authorized financial-institution partners. See the Legal and regulatory section above. **How is Lumx different from other stablecoin payment providers?** LatAm-native multi-currency depth with native local rails (PIX, SPEI, CLABE, IBAN, routing numbers), global onboarding and SWIFT delivery, compliance built in (FinCEN MSB, KYC/KYB, Chainalysis), and an API-first model with idempotency, webhooks, locked rates, and partner-fee monetization. For side-by-side comparisons with specific providers, see the comparison pages on lumx.io. ## Glossary (selected) - **Stablecoin:** A cryptocurrency pegged to a stable asset (usually USD), e.g. USDC and USDT, used here as a settlement layer. - **On-ramp:** Converting local fiat into stablecoins. - **Off-ramp:** Converting stablecoins into local fiat. - **Transfer:** Moving stablecoin between wallets. - **PIX:** Brazil's instant payment system. - **SPEI:** Mexico's interbank electronic payment system. - **CLABE:** Mexican standardized bank account number. - **Named Virtual Account:** A local-currency account in the customer's own name that auto-converts deposits to stablecoins. - **Partner fee:** A fee (in basis points) an integrator adds to transactions to monetize. - Full glossary: https://lumx.io/stablecoin-glossary ## Key resources - About: https://lumx.io/about - Coverage: https://lumx.io/coverage - API docs: https://docs.lumx.io - Blog: https://lumx.io/blog - Glossary: https://lumx.io/stablecoin-glossary - Changelog: https://lumx.io/changelog - Contact: https://lumx.io/contact · compliance@lumx.io --- *This file is maintained for AI ingestion. Last updated: [DATA AO PUBLICAR]. Source of truth: https://docs.lumx.io*