Testnet Is Live

Smart contracts have always lived in a closed box. They couldn’t fetch live data, invoke external APIs, or run AI workflows while bringing the result back on-chain securely. That constraint has held back entire categories of applications.

The KRNL Testnet changes that. It unlocks the verifiable orchestration layer: a foundation where outputs, executions, AI models, and governance rules are all provable. With our new tools, smart contracts and workflows can safely reach beyond the chain, tap external data or AI systems, and bring the results back on-chain with cryptographic receipts that prove every step.

This launch isn’t just for developers. It’s for anyone curious about what happens when applications are no longer constrained by the walls of a single chain. Whether you’re experimenting with trustworthy AI, connecting private and public blockchains, creating programmable assets, or securing systems through taint analysis, the testnet is your playground to explore what’s possible.

What’s New

A Smarter Language for Workflows

We’ve rolled out a Turing-complete DSL (domain-specific language) for workflows. This gives you the flexibility to design everything from straightforward automations to advanced applications with complex logic. Our kernels form a limitless set of building blocks, and what you create with them is only limited by your imagination.

KRNL Studio: Visual Building Made Simple

For those who prefer a more visual approach, KRNL Studio provides a drag-and-drop interface inspired by tools like n8n. You can sketch out workflows, connect steps, and generate DSL automatically without needing deep coding knowledge.

KRNL CLI V2: Build From the Command Line

Developers who like working in the terminal will appreciate the new KRNL CLI V2. It allows you to create, test, and deploy KRNL-powered applications directly from your command line. With just a few commands, you can go from an idea to a running dApp.

Use Cases You Can Try Today

The testnet isn’t just about tools; it’s about possibilities. Here are some ways KRNL is already being used:

• Trustworthy AI
  Anchor AI training data, models, and key inferences to a blockchain ledger. This creates an immutable paper trail so that AI decisions can be accountable, governed, and transparent.

• Programmable Assets
  Go beyond static tokens. Embed compliance, vesting, governance, or clawback rules directly into assets so they behave like autonomous applications. This makes it possible to design compliant stablecoins, dynamic NFTs, and tokenised real-world assets.

• Taint Analysis
  Track whether untrusted (or “tainted”) data can reach sensitive parts of a system. KRNL provides gas-efficient taint analysis, enabling builders to identify vulnerabilities and maintain safer applications.

• Private ↔ Public Blockchain Messaging
  Many enterprises use private ledgers for sensitive data and public chains for liquidity. KRNL enables secure, verifiable messaging between them, ensuring privacy for critical data while making transactions publicly undeniable.

Why It Matters

Smart contracts were once limited to siloed execution. KRNL extends their reach, connecting them to APIs, data, and AI systems, while ensuring every interaction can be cryptographically proven.

The result is an orchestration layer that is verifiable by design. It’s the superconnector where automation, policy engines, and external intelligence can all plug into the blockchain with proof.

Get Started

The testnet is your sandbox. Here’s how to jump in:

1. Experiment with the workflow DSL — build branching logic, loops, data integrations.

2. Architect with KRNL Studio — visually map your idea and generate executable code.

3. Deploy via CLI — scaffold, test, and launch your dApps in a few commands.

This is the best time to get hands-on, test ideas, and see what you can create.

👉 Start building on the testnet today

We can’t wait to see what you build. Your projects, feedback, and experiments are just the start of something bigger.