Post-Quantum Key Infrastructure for Your Business

Managed PQC key lifecycle — generate, rotate, and retire quantum-safe keys without building crypto infrastructure. NIST FIPS 203/204 compliant. Your private keys never leave our secure enclave.

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NIST Approved

SOC 2 Roadmap

Encrypted at Rest

Zero Trust

PLATFORM

Complete PQC Key Management

Everything you need to manage post-quantum keys, encrypt data, and sign documents — without the infrastructure complexity.

Managed Key Lifecycle

Generate, rotate, retire, and archive quantum-safe keys through simple API calls. Explicit key versioning ensures every operation is traceable. No PQC expertise required — we handle the cryptographic infrastructure.

Non-Exportable Keys

Private keys never leave our KMS secure enclave. All cryptographic operations happen server-side. Keys are AES-256-GCM encrypted at rest and referenced by handle, never by value.

Simple REST API & SDKs

Encrypt, decrypt, sign, and verify with straightforward API calls. Use encapsulate mode to keep plaintext in your environment. SDKs for Python, Node.js, and Go.

WHO IT'S FOR

Trusted Across Industries

From government agencies to healthcare providers, organizations use Qpher to future-proof their encryption against quantum threats.

Government & Defense

Protect classified documents and diplomatic communications against harvest-now-decrypt-later attacks. NIST FIPS 203/204 compliant for federal mandates.

Financial Services

Secure banking records, KYC data, and transactions for decades. Quantum-safe key encapsulation keeps sensitive files on your infrastructure.

Healthcare

Encrypt PHI and sign medical records with quantum-resistant algorithms. Non-exportable keys and audit trails satisfy HIPAA requirements.

See all use cases

HOW IT WORKS

Three Steps to Quantum Safety

Go from sign-up to your first encrypted payload in under five minutes.

Sign Up

Create a free account and get your API key. No credit card required.

Integrate

Install our SDK or call the REST API directly. We handle key generation and lifecycle.

Protect

Call the KEM API to get a quantum-safe key, then encrypt locally with AES-256-GCM. Your plaintext never leaves your environment.

DEVELOPER EXPERIENCE

Integrate in Minutes

Simple SDK. Familiar patterns. Get started with just a few lines of code.

import requests

response = requests.post(
    "https://api.qpher.ai/api/v1/kem/encrypt",
    headers={
        "x-api-key": "qph_live_abc123...",
        "Content-Type": "application/json",
    },
    json={
        "plaintext": "SGVsbG8gUXVhbnR1bSBXb3JsZA==",
        "key_version": 1,
    },
)

data = response.json()["data"]
print(data["ciphertext"])  # base64-encoded quantum-safe ciphertext

PRICING

Simple, Transparent Pricing

Start free. Scale as you grow.

Explorer

For developers exploring post-quantum cryptography.

5,000 API calls / month
1 API key
1 Kyber + 1 Dilithium key
Kyber768 + Dilithium3

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Professional

$199/mo

Zero-trust encryption for production workloads.

50,000 API calls / month
10 API keys
10 keys per algorithm
All algorithms (incl. hybrid)

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Enterprise

$399/mo

Full governance and policy controls for security teams.

200,000 API calls / month
25 API keys
Unlimited PQC keys
All algorithms (incl. hybrid)