Post-Quantum Secure · EVM-Compatible · Instant Finality
Armchain is a Layer 1 blockchain built for the post-quantum era. If you're familiar with Ethereum development, you'll feel right at home, deploy the same Solidity contracts you already know, but with quantum-resistant security and instant transaction finality.
Under the hood, Armchain replaces traditional ECDSA signatures with ML-DSA44 (a NIST-standardized post-quantum algorithm) and uses Lachesis aBFT consensus so transactions are final the moment they're confirmed. No waiting, no rollbacks.
Quantum-resistant from day one: All signatures use ML-DSA44 (NIST FIPS 204), protecting against future quantum attacks
Native Account Abstraction: Smart contract accounts are first-class citizens, with support for Passkey (biometric), SLH-DSA, MPC, and custom validation schemes
Instant finality: Transactions are final the moment they're confirmed. No waiting for block confirmations
EVM compatible: Write and deploy Solidity smart contracts just like on Ethereum (London fork)
High throughput: DAG-based consensus lets all validators work in parallel, not one at a time
ARM token: Native token for gas fees, staking, and governance
Chain ID
55
Native Token
ARM
RPC URL
https://www.armchain.org/devnet
Finality
Instant (aBFT)
EVM Version
London
Signature Algorithm
ML-DSA44
Quick test: Verify connectivity with a single curl command:
What Armchain is and why it matters
Deploy your first contract in minutes
Connect your tools to Armchain
Writing and deploying Solidity contracts
Drop-in ethers.js replacement with PQC signing
Connect your dApp to a wallet
How Armchain achieves instant finality
The directed acyclic graph powering the network
How the EVM runs on Armchain
From submission to finality
Why Armchain uses post-quantum cryptography
Algorithm parameters and performance
Type 3 PQC transaction format
How native AA works on Armchain
MLDSA, Passkey, SLH-DSA, MPC, and custom schemes
Gas sponsorship, Foundation Paymaster, and staking policy
Genesis contracts, Yul implementation, developer notes
Choose the right node configuration
Local development network
All node configuration options
Browse blocks, transactions, and contracts
Official browser extension wallet
Get devnet ARM tokens
Ethereum-compatible JSON-RPC endpoints
DAG, validator, and Armchain-specific endpoints
Maintained by the Armchain team · Last updated June 2026
Last updated
curl -s -X POST https://www.armchain.org/devnet \
-H "Content-Type: application/json" \
-d '{"jsonrpc":"2.0","method":"eth_blockNumber","params":[],"id":1}'