Stablecoin Acceptance Infrastructure Comparison: Fireblocks Flow vs. Mesh vs. Fun.xyz vs. Swapped Connect

A side-by-side comparison across wallet connectivity, conversion and routing, compliance, settlement, and more. Compare core elements to help PSPs, fintechs, and payment platforms choose the right stablecoin acceptance infrastructure for accepting digital assets, settling in stablecoins, and meeting compliance obligations at scale.

What to Look for in a Stablecoin Acceptance Provider

Accepting stablecoin payments is not a feature you can enable in an afternoon. A PSP or fintech that has tried to build this in-house knows the scope: wallet connectivity, asset conversion, compliance screening and reconciliation are each legitimate engineering problems. Solved with separate vendors, they compound into an integration project that takes months to build and more time to maintain as wallets and chains continue to launch.

The right infrastructure handles all of this in one integration. Here are the main factors to evaluate:

• Wallet and exchange coverage that spans every asset, chain, and wallet type your users bring
• Conversion and routing that handles the asset mismatch between what the user pays and what the merchant needs to settle in, with automatic routing, failover, and slippage protection
• One-time vs Recurring payments: Flexible payment handling that covers single transactions and recurring billing without separate systems
• Compliance tooling that makes it easy to plug in your screening and verification providers, so you can meet your sanctions requirements and regulatory obligations as you scale
• Settlement infrastructure so funds settle securely without requiring a separate integration
• Reconciliation that maps every transaction, fee, and conversion step back to existing financial records without manual matching
• Security certifications that clear enterprise vendor onboarding requirements
• An integration model that fits your engineering resources and gets you to production within a few days

Compare: Fireblocks Flow vs. Mesh vs. Fun.xyz vs. Swapped Connect

Fireblocks Flow vs. Mesh

When Fireblocks Flow is the better choice:

You need a single integration that covers wallet connectivity, conversion, settlement, compliance, and reconciliation without stitching together separate vendors, and you need it to clear enterprise security standards before you go to production.

Key Highlights of Fireblocks Flow vs. Mesh:

• Settlement destination: Mesh requires merchants to provide their own wallet or custody destination before it can be used at all. Fireblocks Flow bundles settlement directly into the integration, with funds landing in a Fireblocks Vault, a Dynamic embedded wallet, or a customer-controlled address.
• Connectivity breadth: Mesh markets “300+ platforms” as a connectivity claim. In practice, that number reflects 6 live exchange integrations plus 225 wallet connections made primarily via WalletConnect and browser extension detection, not API-level integrations.
• Compliance documentation: Mesh’s compliance capabilities are not documented. There are no named compliance partners and no sanctions screening documentation published. Fireblocks Flow includes built-in sanctions screening, spam token filtering, and geo-blocking built-in with the integration.
• Conversion coverage: Mesh’s cross-chain bridging supports only Base and Ethereum as destination networks. Fireblocks Flow’s conversion layer uses automatic routing and failover across multiple liquidity providers, with additional chain support on the roadmap.
• Reconciliation: Mesh does not include reconciliation. Fireblocks Flow includes audit-ready reconciliation, with every transaction captured end-to-end, every fee broken down, and timestamps at each step.
• Security certifications: Fireblocks holds SOC 2 Type II, SOC 1, ISO 27001/17/18, CCSS Level 3, and ISO 22301. None of the competitors in this comparison have publicly disclosed comparable certifications.

Mesh has built a strong developer experience across five SDKs and comprehensive API documentation, with SmartFunding auto-routing that is a genuine technical differentiator for routing across user balances. For merchants who already have custody infrastructure in place, Mesh’s wallet connectivity breadth and one-tap deposits for repeat users are real advantages in high-frequency deposit environments.

Fireblocks Flow leads when you need the full stack, not just connectivity. For PSPs and fintechs that cannot separate compliance and reconciliation into separate vendor relationships, whether due to regulatory requirements, operational complexity, or time to market, Flow removes those problems in a single integration.

When looking for a company that provides the intersection of blockchain and payments expertise with an enterprise-grade platform, Fireblocks clearly comes out on top.

Nabil Manji

SVP/GM, Head of Crypto and Web3

Fireblocks Flow vs. Fun.xyz

When Fireblocks Flow is the better choice:

You need a self-service integration with documented capabilities, transparent pricing, and enterprise security certifications, without a lengthy custom engineering process just to get started.

Key Highlights of Fireblocks Flow vs. Fun.xyz:

• Integration model: Fun.xyz has no public documentation, no developer portal, no SDK documentation, and no self-service onboarding. Every integration requires Fun’s engineers to embed directly in the customer team. Fireblocks Flow provides a developer kit, API documentation, HMAC-signed webhooks, and a sandbox environment for teams that want to move fast, with Professional Services available for teams that want hands-on launch support.
• Compliance transparency: Fun.xyz’s compliance approach references unnamed “trusted vendors” with no specific capabilities, workflows, or partners disclosed. Fireblocks Flow’s compliance stack is well documented: built-in sanctions screening, spam token filtering, and geo-blocking, with named partners across the Fireblocks platform.
• Security certifications: Fun.xyz has no publicly disclosed security certifications despite processing $18 billion in annual volume. For enterprise PSPs and regulated fintechs running vendor onboarding, this is a practical gating issue regardless of volume claims.
• ICP fit: Fun.xyz’s customer base is heavily DeFi and crypto-native companies, with most disclosed customers being trading platforms and prediction markets. No customers in the PSP, regulated fintech, or licensed iGaming operator verticals have been publicly disclosed. Fireblocks Flow is purpose-built for these customers.

Fun.xyz has real proof points in its segment. Its $18 billion in annual volume and 5M+ daily transactions through Polymarket is credible performance data, and its bespoke model produces high-conversion integrations for teams with the resources and timeline to go through that process. For DeFi-native platforms with custom requirements and dedicated engineering teams, Fun.xyz’s white-glove model delivers results.

Fireblocks Flow leads when you need to evaluate and launch without a multi-month engagement, when your compliance requirements demand a documented stack rather than unnamed third parties, and when your use case is PSP, fintech, or iGaming rather than crypto-native DeFi. Flow gives you production-ready infrastructure with transparent capabilities from day one.

We had very clear decision criteria when choosing a technology provider. Battle-tested security over funds was paramount, robust capabilities to manage that security, and a partner who could support our innovation and scale with us. Fireblocks was the best partner for all these reasons.

Derrick Siu

Head of Finance

Fireblocks Flow vs. Swapped Connect

When Fireblocks Flow is the better choice:

You need programmable stablecoin checkout flows, settlement included in the integration, and the scale and security certifications required for an enterprise PSP vendor onboarding process.

Key Highlights of Fireblocks Flow vs. Swapped Connect:

• Integration flexibility: Swapped Connect is iFrame-only. There is no SDK, no headless mode, and no API-level control over the deposit UI. For a PSP that needs branded checkout flows or a fintech that needs to embed the deposit experience inside an existing product interface, this is a structural limitation. Fireblocks Flow provides both UI and headless modes, a React Native SDK, and full API control.
• Product scope: Swapped Connect handles deposits only. There is no withdrawal or off-ramp capability in the Connect product. Merchants need a second vendor to handle the withdrawal side. Fireblocks Flow covers deposits, settlement, withdrawals and the full stablecoin acceptance flow in one integration.
• Settlement and reconciliation: Swapped has no settlement infrastructure. Funds route to a merchant-provided address with no reconciliation. Fireblocks Flow includes settlement into a Fireblocks Vault or embedded wallet, plus audit-ready reconciliation.
• Proxy connection security: Swapped’s proxy connection type, where the user logs into their exchange through Swapped to create a temporary connection, raises credential handling questions that are relevant for PSPs managing risk on behalf of their merchants.
• Compliance scope: Swapped has regulatory registrations in five jurisdictions covering its own activities as a VASP and money services business. These do not extend to merchant compliance needs. Fireblocks Flow’s compliance tooling is designed for the merchant’s obligations, not just the platform’s own registrations.

Swapped has genuine strengths in specific use cases. Its regulatory registrations are the most clearly documented of any competitor in this comparison, its fiat on-ramp pricing is competitive against alternatives, and its Trustpilot scores reflect a strong user experience in the flows it covers. For crypto-native platforms that need a lightweight fiat on-ramp without significant integration overhead, Swapped’s product fits.

Fireblocks Flow leads when the requirement is a production-grade stablecoin acceptance integration for a PSP or fintech, not a lightweight on-ramp widget. Flow gives you UI customization, withdrawal coverage, reconciliation, and documented compliance in one integration, with the security certifications to clear enterprise vendor onboarding requirements.

Fireblocks provided us with a comprehensive, compliant, and robust crypto infrastructure, giving us the freedom to focus on growing and scaling the business instead of setting up a back office from scratch.

norman wooding

Founder & CEO

How Fireblocks Flow Compares to Privy’s Universal Deposit Addresses (UDA)

In May 2026, Privy launched Universal Deposit Addresses (UDA), a feature that gives each end-user a persistent deposit address that accepts crypto from any wallet or chain, automatically swaps or bridges to a configured token, and settles into that user’s Privy embedded wallet. It is not a like-for-like comparison with Fireblocks Flow, and treating it as one would misrepresent what both products actually do.

What Privy UDA does

Privy UDA is a user-facing deposit feature, allowing consumer apps to give each of its users a personal deposit address. When a user sends funds to that address from any wallet or chain, Privy routes the swap or bridge and lands the funds in that user’s embedded wallet. The developer configures the settlement token and Privy handles the routing. For consumer crypto apps, including trading platforms, DeFi applications, social and creator platforms, this removes the friction of manual bridging or swapping for end-users.

Where the products diverge: a feature vs. a stack

Privy UDA settles into the end-user’s wallet. Fireblocks Flow settles into a merchant Vault, a business-controlled embedded wallet, or a customer-configured external address. That distinction determines the entire use case.

A PSP using Fireblocks Flow receives crypto from thousands of different end-users and settles it into its own infrastructure. The compliance screening, conversion, and reconciliation happen at the business layer, not the user layer. Privy UDA has no equivalent for this. It is not built for merchant settlement, licensed iGaming, or PSP infrastructure.

The gaps are significant across every dimension that matters for regulated PSPs and fintechs:

• Compliance: Privy’s compliance posture is built around consumer apps. KYT/AML is listed on the Enterprise tier only with no named provider and no public documentation. Sanctions screening operates through customer-configured address denylists rather than a managed service. Fireblocks Flow runs built-in sanctions screening, spam token filtering, and geo-blocking on every transaction from day one.
• Settlement Destination: Privy UDA deposits land in user wallets. There is no merchant vault, no PSP-level settlement infrastructure, and no custody layer for businesses managing funds on behalf of their users or merchants.
• Reconciliation: Privy UDA does not include reconciliation. Fireblocks Flow captures every transaction end-to-end with amounts, fees, and timestamps.
• Cross-chain bridging: Privy’s bridge provider for cross-chain flows is not disclosed. Same-chain swaps are powered by the Uniswap API and limited to EVM chains only at this time. Fireblocks Flow supports swap and bridge routing across EVM and non-EVM chains.
• Deposit addresses: Privy’s deposit addresses land funds in each user’s embedded wallet. Fireblocks Flow’s persistent deposit addresses are on the near-term roadmap, built to settle into the business destination you configure rather than an end-user wallet.

Privy does hold SOC 2 Type II, which no other competitor in this comparison can say. For consumer crypto apps that need a frictionless deposit experience for their end-users, Privy UDA delivers that well.

For PSPs, fintechs, and iGaming platforms that need to accept, route, settle, and reconcile stablecoins at the business layer, Fireblocks Flow is the right infrastructure. Privy UDA is a user wallet feature. They are solving different problems.

Why PSPs and Fintechs Choose Fireblocks Flow

• One integration, full stack: Fireblocks Flow is the only stablecoin acceptance infrastructure that bundles wallet connectivity, conversion, compliance, and reconciliation in a single integration. Every competitor in this comparison requires merchants to assemble settlement, compliance, and reconciliation separately.
• Compliance that covers your obligations: Sanctions screening, spam token filtering, and geo-blocking run on every transaction from day one. Compliance is built into Flow, not bolted on later, and it is powered by the same integrations used across the Fireblocks platform.
• Settlement included: Funds settle into a Fireblocks Vault, a Dynamic embedded wallet, or a customer-controlled address.
• Audit-ready reconciliation: Every transaction is captured end-to-end with amounts, fees, and timestamps, mapped for clean reconciliation against existing books.
• Enterprise security certifications: Fireblocks holds SOC 2 Type II, SOC 1, ISO 27001/17/18, CCSS Level 3, and ISO 22301. No competitor in this comparison holds comparable certifications. For enterprise PSPs, these certifications are the baseline for vendor onboarding, not a differentiator.
• Wallet and exchange coverage that grows: 800+ external wallets and major exchanges at launch, with additional chains and exchanges on the roadmap.
• Rapid integration, your brand: A single developer kit drops into existing checkout and deposit flows. UI and headless modes, React Native SDK, HMAC-signed webhooks, and the ability to go live in days. PSPs integrate Flow under their existing licenses with their brand, their checkout, and their merchant relationships intact.
• Built on the Open Transaction Layer (OTL): Flow is built on the OTL, a shared standard for moving stablecoins across providers. As more platforms adopt OTL, the network of compatible endpoints grows, which means broader reach and deeper liquidity for every business building on Flow.

Fireblocks Flow is available now to PSPs, fintechs, and anyone else exploring stablecoin acceptance. Request a demo with a Fireblocks expert or dive further into Fireblocks Flow to learn more.

Disclaimer:

Dynamic does not control the swap, bridge, or routing protocols used to convert and deliver assets. Rates and fees are sourced from third-party providers and may change between quote and execution. Cross-chain transfers carry risk, including slippage, partial fills, and failed conversions. On-chain transactions are final and cannot be reversed. These materials are not investment, financial, legal, or tax advice. You are responsible for evaluation at your own discretion. Fireblock Flow is infrastructure. Please review Dynamic terms and conditions for full details on acceptable use.