Post-quantum E2E encryption. 10 lines of code.

Drop-in SDK for any messaging app. ML-KEM key exchange (NIST FIPS 203) seeded with IBM Quantum entropy. Replaces ECDH before quantum computers break it.

NIST FIPS 203 / 204 COMPLIANT
from quantum_messenger import QuantumMessengerClient client = QuantumMessengerClient(api_key="...") alice = await client.create_identity("alice", "Alice") bob = await client.create_identity("bob", "Bob") session = await client.establish_session(alice, bob) await client.send_message(session, alice, "Hello!")

The Harvest-Now-Decrypt-Later Threat

Attackers are harvesting encrypted messages today to decrypt when quantum computers arrive. NIST standardized ML-KEM (FIPS 203) specifically to counter this. Every message you send with classical encryption is a liability sitting in an adversary's archive.

Quantum Messenger SDK uses ML-KEM key exchange (with X25519 fallback) so your messages are safe even against future quantum computers.

Built For Regulated Industries

Fintech

Quantum-secure trading messages. SEC and FINRA compliant communication archiving.

Healthcare

HIPAA-ready patient messaging. Post-quantum protection for PHI in transit.

Legal

Attorney-client privilege protected with quantum key exchange. Tamper-proof receipts.

Enterprise

Replace Slack DMs with quantum-sealed channels. Forward secrecy via one-time prekeys.

Pricing

STARTER
Free
  • 100 identities
  • 1K messages/day
  • X25519 fallback
Get Started
GROWTH
$49/mo
  • 10K identities
  • 100K messages/day
  • ML-KEM when available
  • Key rotation
Start Free Trial
ENTERPRISE
$199/mo
  • Unlimited
  • HIPAA BAA
  • Dedicated infra
  • SLA
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