Aztec Networks Overview
The Aztec Protocol operates across multiple networks, each serving specific purposes and audiences. This guide provides essential technical information for connecting to each network.
Not sure which network to use? Jump to our Network Selection Guide.
Network Technical Information
| Parameter | Ignition (Mainnet) | Testnet | Devnet |
|---|---|---|---|
| Version | 2.1.11 | 4.1.0-rc.2 | 4.0.0-devnet.2-patch.1 |
| L1 Chain ID | 1 (Mainnet) | 11155111 (Sepolia) | 11155111 (Sepolia) |
| Rollup Version | 0 | 4127419662 | 615022430 |
| RPC Endpoint | N/A | https://rpc.testnet.aztec-labs.com | https://v4-devnet-2.aztec-labs.com/ |
| Bootnodes | http://static.aztec.network/mainnet/bootnodes.json | http://static.aztec.network/testnet/bootnodes.json | N/A |
| Block Explorer | Aztecscan, Aztecexplorer | Aztecscan, Aztecexplorer | Aztecscan, Aztecexplorer |
| Getting Started | Run a sequencer → | Run a node → | Build on Devnet → |
Testnet is your production path. It's decentralized, live, and stable — treat it as your staging environment for Alpha. If you want to deploy on Alpha, validate on Testnet first. Note: Sponsored FPC is not available on Testnet.
Devnet is the bleeding edge. New Devnet versions will release approximately every 3 weeks. Backward compatibility is not guaranteed. Use Devnet to experiment with the latest iteration of the network, not to build production apps. Expect documentation releases and Discord announcements with each cycle, but also expect things to break.
Contract Addresses
L1 Contract Addresses
L2 Contract Addresses
| Contract Name | Ignition (Mainnet) | Testnet | Devnet |
|---|---|---|---|
| Instance Registry | N/A | 0x0000000000000000000000000000000000000000000000000000000000000002 | 0x0000000000000000000000000000000000000000000000000000000000000002 |
| Class Registry | N/A | 0x0000000000000000000000000000000000000000000000000000000000000003 | 0x0000000000000000000000000000000000000000000000000000000000000003 |
| MultiCall Entrypoint | N/A | 0x0000000000000000000000000000000000000000000000000000000000000004 | 0x0000000000000000000000000000000000000000000000000000000000000004 |
| Fee Juice | N/A | 0x0000000000000000000000000000000000000000000000000000000000000005 | 0x0000000000000000000000000000000000000000000000000000000000000005 |
| SponsoredFPC | N/A | Not deployed | 0x09a4df73aa47f82531a038d1d51abfc85b27665c4b7ca751e2d4fa9f19caffb2 |
Governance Parameters
| Parameter | Ignition (Mainnet) | Testnet | Devnet |
|---|---|---|---|
| Proposer Quorum | 600/1000 | 60/100 | N/A |
| Voting Delay | 3 days | 12 hours | N/A |
| Voting Duration | 7 days | 24 hours | N/A |
| Execution Delay | 7 days | 12 hours | N/A |
| Slashing Quorum | 65% | 33% | N/A |
| Slashing Round Size | 128 epochs | 64 epochs | N/A |
Use Case Suitability
| Use Case | Ignition (Mainnet) | Testnet | Devnet |
|---|---|---|---|
| App Development | ❌ | ✅ | ✅ Recommended |
| Sequencer Testing | ✅ | ✅ | ❌ |
| Governance Testing | ✅ | ✅ | ❌ |
Network Selection Guide
Ignition (Mainnet - Phase 1)
Ignition is the Aztec mainnet in its first operational phase, focusing on establishing governance and network infrastructure.
Overview
Ignition is currently configured with a gas limit of 0, meaning no user transactions are being executed. However, governance and networking infrastructure are fully active and being tested. This network is connected to Ethereum mainnet and requires real stakes for participation.
Target Users:
- Validators who want to contribute to the decentralized Aztec Network
- Governance participants
- Infrastructure operators preparing for full mainnet
Key Features:
- Governance system fully operational
- Staking required for sequencer participation
- Connected to Ethereum Mainnet
- No user transaction execution
Testnet
Testnet is the production path for Aztec. It operates as a fully decentralized network with multiple sequencers and closely mirrors Alpha conditions. If you plan to deploy on Alpha, Testnet is where you validate your application. Think of it as your staging environment for the real thing.
Overview
Testnet is ideal for testing node configurations, governance proposals, and understanding network dynamics without real financial risk.
Target Users:
- Future Alpha sequencer operators testing configurations
- Developers requiring production-like testing conditions
- Governance participants practicing proposal workflows
- Infrastructure operators validating monitoring setups
Key Features:
- Fully decentralized sequencer set
- Connected to Ethereum Sepolia
- Transactions are proven
- No Sponsored FPC — you must handle fee payment
- Good environment for testing node operations
App developers can deploy on Testnet for production-like testing. For faster iteration cycles, consider using Devnet.
Devnet
Devnet is the bleeding edge of Aztec development. New Devnet versions will be released approximately every 3 weeks through automated deployments. Backward compatibility is not guaranteed between releases. Use Devnet to experiment with the next iteration of the network — not to build production apps. Documentation updates and Discord announcements accompany each release cycle, but expect things to break.
Overview
Devnet is a centralized network operated by Aztec Labs, designed for rapid experimentation with the latest features.
Target Users:
- Developers experimenting with the latest Aztec features
- Teams testing smart contracts against upcoming versions
- Developers learning Aztec development
Key Features:
- Centralized sequencer
- Latest package versions available first
- New versions approximately every 3 weeks
- Backward compatibility not guaranteed
Next Steps
Based on your use case:
- Building an application? Start with Devnet Getting Started
- Running infrastructure? Review Network Operator Guide
- Joining as validator? See Sequencer Management