Polygon Open Money Stack Enters Technical Preview

tl;dr

• Polygon Open Money Stack is in technical preview with limited early access to select partners
• In one API, this version supports cash ramps, business bank ramps, custodial wallets, stablecoin transfers, external wallet routing, API keys, webhooks, RBAC, SSO and sandbox/live environments
• Several parts of the broader Open Money Stack are already live and usable today, including fiat ramps, wallets, Polygon chain, blockchain-as-a-service, and cross-chain interop
• Embedded wallets, swaps and expanded ramp coverage are coming next

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What is Open Money Stack

Polygon’s mission is to move all money onchain. Open Money Stack is how we're doing it.

The Polygon Open Money Stack (OMS) is an open, integrated and programmable stack of services and technologies in a single easy-to-use API to instantly and reliably move money anywhere, and put it to work.

Accept deposits, move stablecoins, and off-ramp to bank accounts or cash, all through a single API. The core payments stack is working today, and we're onboarding a small group of partners and builders before expanding access more broadly.

We believe global money should move easily and instantly through open systems, so people and businesses everywhere can take part in the global economy. 

That’s the purpose behind Open Money Stack.

What you can do with OMS today

Open Money Stack is now entering technical preview. 

Technical preview gives teams access to the core money movement stack to integrate with your existing payments flows:

• Cash ramps. Your users can deposit and withdraw cash across 48 US states, receiving USDC or USDT directly in their custodial wallet
• Bank ramps. Business customers receive virtual bank accounts with ACH, Fedwire, and RTP support, and can wire USD directly into OMS from any US bank
• Custodial wallets. Wallets are auto-created per customer (USDC and USDT on Polygon), so developers can process transactions immediately after onboarding. Embedded wallets are coming soon
• Stablecoin transfers. Move USDC and USDT between wallets on Polygon Chain 
• External wallets. Developers can register external wallet addresses to route funds to any Polygon wallet outside of OMS
• Full API. Key generation, webhook support, role-based access control, and SSO are all functioning. Documentation is at docs.polygon.technology.
• Dashboard. Manage the whole stack from one place — view balances, track transactions in real time, manage wallets and bank accounts, generate API keys, and set team permissions.

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How it works

The core loop is simple: money comes in, becomes a stablecoin, moves where it needs to go, and comes back out as fiat. Here's what that looks like inside Open Money Stack.

1. Money in. Your user deposits cash or a business wires USD through ACH, Fedwire, or RTP. Funds show up in the dashboard within a minute.
2. Stablecoin. USD converts to USDC or USDT on Polygon chain, with more chains and tokens coming soon.
3. Money moves. Transfers between wallets settle in seconds at fractions of a cent. Your system gets a webhook the moment it's done
4. Money out. Businesses can off-ramp back to their bank account through ACH, Fedwire, or RTP. Individual users can withdraw cash or transfer funds to an external wallet. Personal bank off-ramps are coming soon.

What this looks like in practice

As an illustrative example: A payroll company connects to OMS. Their client, a US-based startup, wires $50,000 into their OMS virtual bank account via ACH. The funds land in the dashboard in minutes.

The company triggers 200 contractor payouts through a single API call. Each payment converts to USDC on Polygon and transfers to the contractor's custodial wallet in seconds, at a cost of fractions of a cent. From there, contractors can withdraw, transfer the USDC to an external wallet, or simply hold it.

On legacy payroll rails, this takes 1-3 business days. On OMS, it settled in seconds, for less than a penny per payment. The integration took days, not months, and contractors got paid the same day.

That’s the power of Open Money Stack.

What’s live now vs. what’s on our roadmap

The team is adding capabilities to the stack every sprint, and every release brings OMS closer to full production. Here's what's functioning today and what's on our roadmap.

What the “open” in Open Money Stack means

Moving money across borders today means navigating a system built on 50-year-old infrastructure. SWIFT, correspondent banking, and legacy payment rails were designed for a different era. They’re slow (hours or days for a cross-border wire), expensive (3-7% in fees and FX spread), and opaque (good luck tracking a payment through five intermediary banks).

We built OMS on blockchain infrastructure because we think payments should work more like the internet: fast, global, and transparent by default. 

Transactions on Polygon settle in seconds and cost fractions of a cent. The entire system is designed so that businesses can build on top of it without asking permission or signing into a walled garden.

That is what we mean by open. 

Who gets access

We’ve invited a select group of partners who are already building with OMS: running integrations, testing transactions, and getting ready for live mode. They’re seeing firsthand what it means to move money through Open Money Stack.

We’ll soon be expanding access. If you're a fintech, enterprise, or platform looking for better payments infrastructure, we want to hear from you.

The infrastructure behind OMS is live today

You don't have to wait for early access to start building. The products that power OMS are live today:

• Wallets. Embedded wallet infrastructure that moves money on-chain without exposing crypto to end users. Already live and powering applications across payments, gaming, and consumer finance.
• Cash Ramps (via Coinme). Operation in 48 US states for deposits and withdrawals, live today. Learn more.
• Polygon Chain. The go-to chain for moving money. Fast, low-cost, and battle-tested with six years in production and over $2.6T in stablecoin transfer volume.
• Chain Development Kit. Launch your own blockchain with built-in privacy and native access to global liquidity. In production with institutions moving real value.
• Cross-chain transactions. Pay, swap, fund, or earn in any token, on any EVM chain, using any wallet. Polygon Trails is the universal intents platform for 1-click crypto transactions.

Get early access

We’re building payments infrastructure for the next decade. If you’re building something that moves money, request early access by filling out the form below and start building with us.

Read the docs: https://docs.polygon.technology/

Disclaimer

This post is for general informational purposes only and does not constitute legal, financial, tax, regulatory, or investment advice. Nothing herein constitutes a solicitation, offer, or recommendation to buy, sell, or use any product or service. Use of Open Money Stack and related Polygon products is subject to Polygon's Terms of Use and the Open Money Stack Terms and Conditions (polygon.technology/terms-of-use), as well as any applicable third-party terms. Users are responsible for ensuring compliance with all applicable laws in their jurisdiction. Open Money Stack is currently in technical preview with limited early access; features, availability, and functionality are subject to change, modification, suspension, or discontinuance at any time without notice at Polygon's sole discretion. Regulated money services activity within OMS — including fiat on- and off-ramp services — may be carried out by licensed partners. Statements about future features or roadmap items do not constitute commitments or guarantees as to timeline or availability.