⚡ Zypher SDK

The Standard for Verifiable AI

Trust, but verify. Cryptographically bind LLM outputs to their prompts using Zero-Knowledge Proofs.

Zypher is the missing layer of trust for the AI era. It allows developers to generate a cryptographic proof that a specific AI response was generated from a specific prompt, ensuring integrity, compliance, and transparency.

📄 Read the Technical Whitepaper • 🚀 Join the Private Beta

🤝 Join the Inner Circle

We are building the future of Verifiable AI together. Whether you're building an AI DAO, a compliance tool, or just exploring:

👉 Join our Discord Community

• Get direct support from the core team.
• Showcase your projects to other builders.
• Shape the roadmap of the SDK.

🚀 Why Zypher?

In a world of deepfakes and hallucinations, proof matters.

• ✅ Compliance Ready: Meet emerging regulations (EU AI Act) by proving exactly what your AI models are doing.
• 🔐 Tamper-Proof: Using Groth16 ZK proofs and Poseidon hashing, our proofs are mathematically impossible to forge.
• 🦾 Multi-Provider: Works seamlessly with OpenAI, Anthropic (Claude), Google Gemini, Cohere, and Ollama.
• ⚡ Production Grade: Fully audited circuits, written in TypeScript, and ready for scale.

📦 Installation

npm install @zypher-sdk/sdk

⚡ Quick Start

Generate your first verifiable AI response in under 30 seconds.

import { runZypher } from '@zypher-sdk/sdk'

// 1. Run the agent with verification enabled
const result = await runZypher({
  prompt: "Explain zero-knowledge proofs to a 5-year-old",
  config: {
    agent: 'anthropic', // or 'openai', 'gemini', 'cohere', 'ollama'
  }
})

// 2. You now have a cryptographically signed proof!
console.log('✅ Response:', result.response)
console.log('🔐 ZK Proof:', result.zkProof)
console.log('✍️ Signature:', result.signature)

🧠 Supported Providers

We support the world's best AI models out of the box. Just set your API key in .env and you're good to go.

| Provider | Config Key | Env Variable | | :--- | :--- | :--- | | Anthropic | anthropic | ANTHROPIC_API_KEY | | OpenAI | openai | OPENAI_API_KEY | | Google Gemini | gemini | GOOGLE_API_KEY | | Cohere | cohere | COHERE_API_KEY | | Ollama | ollama | (None required) |

🧪 Verification

Don't just take our word for it. Verify the proofs yourself using our CLI.

# Verify a proof file
npm run verify -- proofs/session_1763529005432.json

Output:

✅ ZK Proof is VALID
🔏 Signature verified by 0x9Ff8...
🎉 Session verification complete.

🛠️ How It Works

1. Hash: We hash your prompt using Poseidon, a ZK-friendly hashing algorithm.
2. Prove: We generate a Zero-Knowledge Proof (Groth16) that attests that the hash corresponds to the prompt.
3. Sign: The proof and response are signed by a wallet, creating an immutable Chain of Trust.

📄 License

This project is licensed under the MIT License - see the LICENSE file for details.

🧑‍💻 Author

Thiruvel S.

• GitHub: @Thiruvelhere
• Join the Discord to chat with me directly!