Fystack vs Dfns: MPC Wallet for APAC Startups vs European Institutions

Most teams building payment or exchange products need Solana, Ethereum, and TRON running at the same time before they have their first paying customer. Dfns’s $60 starter plan looked like good news for early-stage teams. Then you read the fine print: one blockchain, one team member, no integrations, and a list of core technical features that are not available until $2,500 per month.

This post compares Fystack and Dfns across four dimensions: pricing, target market, open-source depth, and deployment. The trade-off section covers where each platform is genuinely stronger.

Dfns vs Fystack Pricing 2026: What Each Tier Actually Offers

Dfns: Most of the Platform Is Behind the $2,500 Plan

Dfns publishes four plans. The $60 Starter is one blockchain, one team member, 100 wallets, no integrations. The $600 Basic adds three blockchains and basic team management. But HD keys, key import/export, fast TSS, fast DKG, custom threshold parameters, third-party integrations, and audit logs are all locked behind the $2,500 Pro plan. 

These are not edge-case features: they are baseline requirements for any production custody deployment.

One area where both Dfns and Fystack genuinely stand out relative to the broader market: neither charges AUM fees or per-transaction fees. Platforms like Fireblocks, Cobo, and Utila all charge volume-based fees that compound significantly as transaction volume grows. 

Fystack: All Plans Cover All Chains, No Feature Paywalls

Fystack's Free plan includes full API access, all supported chains, and core wallet operations with no time limit. 

The Pro plan at $99 per month covers up to 1,000 wallets and $100,000 in monthly volume with full team management and RBAC. 

The Growth plan at $299 covers 10,000 wallets and $500,000 in monthly volume, no overage fees. HD keys, key import/export, TSS, DKG, integrations, and audit logs are available across all plans.

The cost to run Solana, ETH, TRON, and BTC together: free on Fystack, $2,500 per month on Dfns.

APAC Startups vs European Institutions: Who Each Platform Is Built For

Dfns: Institutional Infrastructure for the EU Market

Dfns is a French company operating under the AMF's DASP framework. Their compliance posture, SOC 2 Type II, ISO 27001/27017/27018, and DASP license, is designed for regulated banks, custodians, and asset managers in Europe and North America. 

Clients include ABN AMRO, Fidelity International, and IBM. The $2,500 Pro plan is a reasonable budget for a regulated European fintech. It is not a realistic starting point for most APAC teams.

Fystack: Built for APAC Fintechs and Payment Companies

Fystack's primary focus is the APAC region: fintechs, payment companies, exchanges, and crypto businesses where TRON dominates stablecoin transfer volume and multi-chain is a day-one requirement.

Fystack integrates with TronZap, which sponsors TRON transaction fees on behalf of wallets with no TRX balance. For payment products where users receive USDT directly without holding TRX for gas, this removes one of the most common friction points in APAC stablecoin UX.

Data sovereignty is a growing concern in markets like Vietnam, Indonesia, and Thailand, where regulators are moving toward requirements that private key material stay within national jurisdiction.

Fystack's self-hosted deployment gives teams a concrete path to satisfy that. 

Paid plan customers also get direct access to Fystack engineers through Telegram and Slack, not a ticketing queue.

Open-Source MPC Infrastructure: Community Protocol vs Platform Ecosystem

Dfns: Open Cryptographic Protocol, Proprietary Custody Platform

Dfns has 16 public repositories: client SDKs in TypeScript, Go, Python, Swift, Kotlin, and Flutter, plus integration examples. 

Beyond the SDKs, Dfns founded Lockness, an initiative under LF Decentralized Trust (formerly Hyperledger Foundation), and donated eight Rust cryptographic libraries including cggmp21, an audited implementation of the CGGMP21 threshold ECDSA protocol. 

This is the signing algorithm Dfns uses in their own platform, and it is genuinely open-source under Apache 2.0.

What remains proprietary is the custody platform layer: the orchestration service, wallet lifecycle management, API infrastructure, compliance tooling, and enterprise deployment stack built on top of those libraries. 

Fystack: Open-Source at the Platform Layer

mpcium is Fystack's core MPC library, published on GitHub and built on Binance's production-tested tss-lib. Any developer or auditor can read the threshold signing implementation before deploying it. 

Fystack also publishes a Developer Security Handbook covering 19 topics, from key management and API hardening to operational security practices. The multi-chain indexer provides a single integration point for querying activity across multiple chains simultaneously.

Deployment Flexibility and Infrastructure Control for MPC Wallets

Dfns: Three Modes, Enterprise Access Required for On-Premise

Dfns supports fully managed (cloud), hybrid (customer holds one key shard via HSM), and on-premise (full deployment into private cloud or air-gapped environment using Intel SGX or IBM OSO enclaves). 

The hybrid and on-premise options are well-engineered. Access to them requires an enterprise contract.

Fystack: Self-Hosted Available Across All Plans

Fystack is available as a SaaS platform or as a self-hosted deployment. The self-hosted version runs via Docker or Kubernetes inside the customer's own environment, with key material stored in AWS KMS, GCP KMS, or an on-premises HSM. 

The hybrid mode, where the customer holds one key shard, Fystack holds one, and a trusted third party holds one, is in active development and expected in Q4 2026.

Which MPC Wallet Platform Should You Choose in 2026?

Choose Dfns if you are selling into European or North American regulated financial institutions, your procurement process requires ISO and SOC 2 certifications, or you need on-premise HSM deployment backed by an enterprise contract.

Choose Fystack if you are building in APAC, need multi-chain and full MPC features from day one without paying enterprise pricing, want to audit or self-host the MPC core, or are operating on a startup budget. 

The free plan is available at Fystack with no credit card required and mpcium is public at Fystack’s Github Repo. 

About Fystack & The Comparison Series

Fystack: An enterprise-grade digital asset custody platform for teams.

This post is part of Fystack's ongoing series comparing MPC wallet infrastructure providers. Each post covers pricing, features, deployment, and the honest trade-offs between Fystack and a specific platform. Other posts in the series:

1. Fystack vs Cobo: Which Pricing Model Works for Your Business?
2. Fystack vs Utila: How to Choose the Right MPC Wallet for Your Web3 Business?
3. Fystack vs Fireblocks: What Is the Future of Crypto Asset Custody?

Frequently Asked Questions: Fystack vs Dfns