NEUS Network

Verify once. Prove everywhere.

NEUS is a universal verification protocol for identity, ownership, and agent authenticity across platforms and chains.
It turns verifications into a portable proof you can reuse anywhere—apps, APIs, smart contracts, or AI systems—without rebuilding trust logic each time.

Quick start (SDK)

npm install @neus/sdk

import { NeusClient } from '@neus/sdk';

const client = new NeusClient();

// Create (or refresh) a proof
const proof = await client.verify({
  verifier: 'ownership-basic',
  content: 'My original content',
  wallet: window.ethereum,
});

// Proof ID (wire field: qHash)
const proofId = proof.qHash;
console.log('Proof ID:', proofId);

// Resolve status later (for gating, auditing, refresh policy, etc.)
const status = await client.getStatus(proofId);
console.log('Status:', status.status);

Proof ID = qHash (field name).
The Proof ID is stable for repeat verifications. Freshness comes from timestamps like completedAt / per-verifier verifiedAt.

Server-side gating (recommended)

For backend eligibility checks, use the minimal gate endpoint (or the SDK wrapper). This avoids pulling full proof payloads and lets you enforce freshness windows for point-in-time verifiers.

• HTTP: GET /api/v1/proofs/gate/check
• SDK: client.gateCheck({ address, verifierIds, since, sinceDays, ... })

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Quick start (React widgets)

Widgets are optional and live under a dedicated subpath.

import { VerifyGate, ProofBadge } from '@neus/sdk/widgets';

export function Gated() {
  return (
    <VerifyGate verifierData={{ 'nft-ownership': { contractAddress: '0x...', tokenId: '1', chainId: 1 } }}>
      <ProtectedComponent />
    </VerifyGate>
  );
}

For Next.js App Router, render widgets inside a Client Component (widget modules are client-only).

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Documentation

Resource	Description
Docs home	Protocol overview and guides
Quickstart	Create your first proof
API Reference	HTTP endpoints
Verifiers	Verifier catalog + schemas
Contracts	Verified deployments and explorers
Examples	Integration examples

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Support

Channel	Use For
GitHub Discussions	Questions
GitHub Issues	Bug reports
dev@neus.network	Security issues

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License

• Smart Contracts: BUSL-1.1 → Apache-2.0 (Aug 2028)
• SDK & Tools: Apache-2.0