2026-10-08Service
Posted: October 8, 2026
Nodit now supports Arc Mainnet.
Arc Mainnet provides the same set of APIs that has been available on Arc Testnet. You can move workloads validated on Arc Testnet to Arc Mainnet by changing only the network identifier in the endpoint.
With the launch of Arc Mainnet, the Data API on Arc Testnet now follows the 90-day testnet data retention policy.
1. Arc Mainnet Support
The following features are now available on Arc Mainnet:
| Feature | Arc Mainnet | Arc Testnet |
|---|---|---|
| RPC API (JSON-RPC, WebSocket) | ✅ | ✅ |
| Data API | ✅ | ✅ |
| Webhook | ✅ | ✅ |
| Stream | ✅ | ✅ |
| Multichain API | ✅ | ✅ |
2. Endpoints
Use mainnet as the network identifier to call Arc Mainnet.
| API | Endpoint |
|---|---|
| RPC API (HTTPS) | https://arc-mainnet.nodit.io/{YOUR_API_KEY} |
| RPC API (WebSocket) | wss://arc-mainnet.nodit.io/{YOUR_API_KEY} |
| Data API | https://web3.nodit.io/v1/arc/mainnet/... |
For Webhook and Stream, set network to mainnet when you create a subscription for Arc.
3. Arc Testnet Data Retention
The testnet data retention policy applies to testnets of chains that also have a mainnet. As Arc now has a mainnet, the Data API on Arc Testnet provides only data from the past 90 days.
Data that is independent of the query time, such as the current state of an address and token holder information, is not subject to this policy. If your application relies on Arc Testnet data older than 90 days, store that data on your side before it falls outside the retention window.
For details on the policy and response behavior, see Testnet Data Availability.
4. Get Started
- Arc RPC API
- Arc WebSocket Subscription
- Arc Data API
- Webhook Quickstart
- Stream Quickstart
- Multichain API — Lookup Entities
- Supported Chains
If you have any questions about this update, please contact us at [email protected].
Thank you.
Sincerely, Nodit Team