2026-10-08Changelog
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Nodit now supports Arc Mainnet. The RPC API, Data API, Webhook, Stream, and Multichain API available on Arc Testnet are now available on Arc Mainnet as well.
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With Arc Mainnet support, the 90-day testnet data retention policy now applies to the Data API on Arc Testnet.
Major Updates
1. Arc Mainnet Support
Arc is an EVM-compatible Layer 1 blockchain designed for stablecoin-based financial applications, and it uses USDC as its native token. Until now, Nodit supported only Arc Testnet. Starting with this update, Nodit supports Arc Mainnet as well.
Arc Mainnet provides the same APIs as Arc Testnet. You can connect an application validated on Testnet to Mainnet by changing only the network identifier in the endpoint to mainnet.
| Feature | Arc Mainnet | Arc Testnet |
|---|---|---|
| RPC API (JSON-RPC, WebSocket) | ✅ | ✅ |
| Data API | ✅ | ✅ |
| Webhook | ✅ | ✅ |
| Stream | ✅ | ✅ |
| Multichain API | ✅ | ✅ |
The Arc Mainnet endpoints are as follows.
| 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. Existing Arc Testnet endpoints (arc-testnet) remain available without change.
- Elastic Node
- A shared node environment provided by Nodit.
- Try Arc RPC API
- Learn more about Elastic Node
- Dedicated Cluster
- A dedicated node environment for Arc Mainnet is available upon request.
- Learn more about Dedicated Cluster
2. Data Retention Policy for Arc Testnet
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.
Cumulative 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 you need Arc Testnet data older than 90 days, store it on your side before it falls outside the retention window.