Armchain Developer Docs

Welcome to Armchain

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.

Get Started · Quickstart · SDK Reference · API Docs

Why Armchain?

Quantum-resistant from day one: All signatures use ML-DSA44 (NIST FIPS 204), protecting against future quantum attacks
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

Network at a Glance

Parameter

Value

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:

curl -s -X POST https://www.armchain.org/devnet \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","method":"eth_blockNumber","params":[],"id":1}'