Business logic,
on-chain.

No Rules — the rules engine built for Web3.

A decentralised, deterministic business rules engine for Web3 platforms. Define complex decision logic once. Execute it trustlessly, consistently, and verifiably — across any chain, any protocol, any time. No servers. No middlemen. No surprises.

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What it does

Rules that run themselves.

Decentralised execution

Rules run on-chain with no central point of failure. No backend to maintain, no server to trust, no single entity that can change the outcome.

Trustless

Deterministic outcomes

Same inputs always produce the same outputs. Every decision is auditable, reproducible, and provably correct — at any point in time.

Verifiable

Composable rule sets

Build complex decision trees from modular, reusable rule primitives. Compose, version, and deploy logic the same way you deploy smart contracts.

Composable

Protocol-agnostic

Deploy your rules across any EVM-compatible chain. No lock-in to a single protocol or platform — your logic travels with your application.

Multi-chain

Immutable audit trail

Every rule evaluation is recorded on-chain. Compliance, dispute resolution, and governance decisions have a permanent, tamper-proof record.

Auditable

Developer-first API

Define rules in a clean, expressive DSL. Integrate directly with your existing contracts and dApps via a typed SDK — no new paradigms to learn.

SDK ready

How it works

Define once. Execute everywhere.

01 — Define

Author your rules

Write business logic as structured rule sets using the No Rules DSL — conditions, priorities, actions, and fallbacks. Version-controlled and human-readable.

02 — Deploy

Publish on-chain

Compile and deploy your rule sets to the chain of your choice. Immutable by default, upgradeable by governance — you stay in control of the lifecycle.

03 — Execute

Evaluate trustlessly

Any contract or dApp can call your rules engine. Inputs in, deterministic decision out — verifiable by anyone, manipulable by no one.

Private beta

Be first to build with No Rules.