G2

Soyoon J.

software developer

Small-Business (50 or fewer emp.)

11/4/2026

"Dfns Delivers Ready-to-Use Wallet Infrastructure with Strong Policies, MPC, and Support"

5/5

What do you like best about Dfns?

What I like most about Dfns is that so much of the core wallet infrastructure is ready to use out of the box. We’re building our wallet-as-a-service platform on Dfns, and its MPC key management, policy engine, and APIs let us stay focused on our product rather than spending time building custody technology from scratch.

The policy engine has been particularly valuable. When we tested whitelist policies, the ability to allow or block transfers worked as expected, and the evaluate API helped us verify how a policy would impact real transfer requests before going live. Delegated signing is another major strength: a single platform can support both non-custodial B2C wallets and custodial B2B wallets.

We also appreciate the deployment flexibility. On-premise deployment and configurable key storage matter for meeting financial regulators’ requirements in Korea. The documentation is solid, and the Dfns team provides detailed, helpful answers to our technical and compliance questions. Review collected by and hosted on G2.com.

What do you dislike about Dfns?

The main limitation we've run into is chain coverage for indexing. Some chains, especially Tier 2 networks, aren't supported for indexing, so we had to plan around that for certain projects.

On-premise deployment also takes more work than the cloud version. The indexer has high hardware requirements, which made us question whether running it in our own data center is practical. It also wasn't clear at first which components come with on-prem, for example whether we should use Dfns's RPC endpoints or run our own blockchain nodes. We had to go back and forth with the Dfns team to get answers.

For regulated financial clients, we also had to build a lot of the compliance documentation ourselves. More ready-made material for local regulatory requirements and on-prem setups would speed this up. Review collected by and hosted on G2.com.

What problems is Dfns solving and how is that benefiting you?

Dfns gives us secure MPC-based wallet infrastructure without having to build and maintain our own key management and custody system. That matters for us because we're building a wallet-as-a-service platform for financial institutions such as banks and securities firms, where security and regulatory compliance are mandatory.

The biggest benefit is that we can serve different business models on a single platform. Using delegated signing, we can offer non-custodial wallets for retail users and custodial wallets for corporate clients, instead of combining separate vendors. This made our proposals to financial clients simpler and stronger.

Dfns also helps us meet local requirements. On-premise deployment, configurable key storage, and a flexible policy engine let us design an architecture that can satisfy Korean regulators' non-custodial wallet criteria. Overall, it shortened our development time and let our team focus on product features and client integration rather than core cryptography. Review collected by and hosted on G2.com.