# Zondax

> Code. Create. Connect.

Zondax is a blockchain engineering company that builds hardware wallet applications, protocol integrations, and infrastructure solutions for blockchain projects.

Zondax provides engineering services across hardware wallet development, protocol engineering, blockchain integrations, and data infrastructure. The company has contributed to tools, core protocol work, and security enhancements across multiple blockchain projects. Its offerings include hardware wallet app development for Ledger, remote signing solutions, indexing services, and on-demand blockchain infrastructure hosted from a GDPR-compliant data center in Switzerland.

- Type: Company
- Sector: Service Provider
- Status: Active
- Founded: 2017-01-01
- Profile: https://thegrid.id/profiles/zondax

## Products

- [Blockchain Engineering & Development Services](https://thegrid.id/profiles/zondax): Zondax is a blockchain engineering services provider offering development, tooling, and infrastructure across multiple blockchain ecosystems. The firm builds hardware wallet applications for Ledger devices, blockchain explorers and data APIs (Beryx for Filecoin), developer testing frameworks (Zemu), migration tools (Polkadot Migration App), TEE-based remote signers, indexers, node software, and protocol engineering components. Client teams access outputs through open-source repositories, hosted tools, and the Zondax Hub for Ledger app distribution. (Service Provider, Live, Main Product)
- [Beryx](https://thegrid.id/profiles/zondax): Beryx is a blockchain data platform for the Filecoin ecosystem, providing real-time and historical on-chain data through a public API and a web-based explorer. It indexes transactions, account activity, multisig interactions, and fee details, exposing them through structured REST endpoints and an OpenAPI-documented interface. A JavaScript client library is available for application integration. (Block Explorer, Live, Main Product)
- [Zondax Hub](https://thegrid.id/profiles/zondax): Zondax Hub is a web-based tool for discovering and installing Ledger hardware wallet apps developed by Zondax. Users connect a Ledger device, browse available asset apps by name, and install released or pre-release versions. The platform provides access to apps pending official Ledger Live approval, including versions marked as under review or not yet released. (Developer Tooling, Live)
- [Kunobi](https://thegrid.id/profiles/zondax): Kunobi is a desktop application for managing Kubernetes clusters and GitOps workflows. It connects to clusters via the Kubernetes API to surface real-time visibility into deployed workloads, Helm release histories, sync status, and drift detection across multiple cluster environments. The tool runs locally and integrates with Flux for GitOps coordination. (Developer Tooling, Live)
- [Zemu](https://thegrid.id/profiles/zondax): Zemu is an end-to-end testing framework for Ledger hardware wallet applications. It automates integration testing using Ledger's Speculos emulator, enabling developers to run reproducible test suites against Ledger apps without physical devices. The framework is used across Ledger apps built by Zondax and by external teams, including the official Ledger Ethereum app. (Developer Tooling, Live)
- [Polkadot Ledger Migration App](https://thegrid.id/profiles/zondax): The Polkadot Ledger Migration App is a web-based tool for transitioning existing Ledger accounts from legacy per-chain Polkadot apps to the new universal Polkadot Ledger app. It supports multiple networks within the Polkadot ecosystem and provides a guided interface for migrating an entire portfolio through a single workflow, with transaction signing handled by the connected Ledger device. (Developer Tooling, Live)
- [TEE Remote Signer](https://thegrid.id/profiles/zondax): The Zondax TEE Remote Signer is a hardware and software stack for secure transaction signing using Trusted Execution Environments. Trusted applications run in an isolated environment separate from the host OS using OPTEE and Rust, exposing signing services to host applications through a defined network endpoint. The stack targets proof-of-stake validation and remote signing use cases for blockchain node operators. (Custody Technology Provider, Live)
- [Vault K8S Canister](https://thegrid.id/profiles/zondax): The Vault K8S Canister is a proof-of-concept secret management system using Internet Computer canisters for decentralized secret storage and rotation. It manages and rotates secrets for Kubernetes cluster workloads, enabling transparent and configurable secret sharing between consumers. The implementation uses IC canister technology to provide tamper-resistant secret management outside traditional centralized vaults. (Developer Tooling, Open Beta)
- [ICP-EVM Proxy](https://thegrid.id/profiles/zondax): The ICP-EVM Proxy is a proof-of-concept bridge translating ICRC-3 log data from Internet Computer Protocol canisters into EVM-compatible event formats. A Go-based adapter exposes EVM RPC methods, allowing Ethereum tooling to interact with ICP canisters using familiar interfaces. A SubQuery indexer component provides a GraphQL API for querying the translated on-chain data. (Cross-chain Infrastructure, Open Beta)
- [Namadexer](https://thegrid.id/profiles/zondax): Namadexer is a blockchain indexer and JSON API server for the Namada network. It extracts blocks and transactions from a Namada node, persists them in a PostgreSQL database, and exposes query endpoints for retrieving specific on-chain data. The service targets developers building applications requiring indexed access to Namada network activity. (OnChain Data API, Live)
- [Filecoin Developer Tools](https://thegrid.id/profiles/zondax): Zondax Filecoin Developer Tools is a collection of libraries and utilities for building on the Filecoin network. Components include Solidity libraries for calling Filecoin built-in actors from EVM smart contracts, transaction signing tools across multiple languages, gas optimization utilities, and an AssemblyScript SDK for the Filecoin Virtual Machine. The tools are designed to enable developers familiar with EVM environments to build Filecoin-specific applications. (Developer Tooling, Live)
- [ICP Developer Tools](https://thegrid.id/profiles/zondax): Zondax ICP Developer Tools provides a C++ wrapper for the Internet Computer agent library, enabling C++ applications to interact with ICP canisters, and a protocol modification enabling ICP nodes to push metrics to external services using mutual TLS authentication. These components extend ICP's integration surface for developers using non-native toolchains and for node operators requiring accessible metrics without firewall modifications. (Developer Tooling, Live)
- [Drand](https://thegrid.id/profiles/zondax): Drand is a distributed randomness beacon protocol producing publicly verifiable, unbiased, and unpredictable random values at fixed intervals. Linked drand nodes use bilinear pairings and threshold cryptography to collectively generate randomness, ensuring no single node can predict or manipulate the output. The protocol is designed for applications requiring verifiable randomness in decentralized or cryptographic contexts. (Developer Tooling, Live)
- [Polkadot Hybrid Host Node](https://thegrid.id/profiles/zondax): The Polkadot Hybrid Host Node is a protocol engineering research project evaluating the feasibility of an alternative Polkadot host node implementation using a modular, incremental approach. The analysis identifies architectural challenges in the existing Polkadot host and proposes building an alternative node component by component in a hybrid fashion. The project targets core protocol developers seeking to diversify Polkadot client implementations. (Developer Tooling, In Development)
- [Lexicor](https://thegrid.id/profiles/zondax): Lexicor is an AI-powered name generation tool that combines trademark search, domain availability checking, and language analysis to suggest brand and product names. Users input naming criteria and receive candidates filtered for legal availability and web domain accessibility. The tool is designed to streamline the naming process for new projects and businesses. (In Development)
- [Zondax Ping](https://thegrid.id/profiles/zondax): Zondax Ping is a notification application delivering real-time alerts for configured blockchain events and system conditions. Users define monitored conditions and receive push notifications when those conditions are triggered. The tool is designed for developers and network operators who require real-time monitoring of on-chain activity or infrastructure state. (Developer Tooling, Live)

## Links

- [Main](https://zondax.ch)
- [Documentation](https://docs.zondax.ch)
- [Blog](https://zondax.ch/blog)
- [Media Kit/branding](https://zondax.ch/assets)
- [Privacy policy](https://zondax.ch/privacy-policy)
- [Terms of Service](https://zondax.ch/terms-of-use)
- [LinkedIn](https://github.com/Zondax)
- [LinkedIn](https://www.linkedin.com/company/zondax)
- [Twitter / X](https://x.com/_zondax_)

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