What is a Backstop Testnet RPC?
An RPC endpoint connects wallets and applications to Backstop Testnet. Use the endpoints above for JSON-RPC requests, and keep alternatives available for regional endpoint failures or rate limits.
testnetChain ID 88558801 · ZBS
Backstop Testnet
Public RPC endpoints and wallet configuration for Backstop Testnet.
Network endpoints
Add Backstop Testnet to MetaMask
Use “Add to wallet” to request the network configuration. Always verify chain ID 88558801, currency ZBS, and the selected RPC before approving.
Public RPC safety
Public endpoints are third-party infrastructure. They may log requests, enforce limits, or become unavailable. Never place private keys, seed phrases, or secrets in an RPC request.
Common RPC errors
Rate limits, browser CORS rules, network mismatch, and temporary provider failures are common. Try another listed endpoint and verify the returned chain ID.
Backstop Testnet RPC FAQ
What is the RPC URL for Backstop Testnet?+
https://testnet.rpc.backstop.technology is the recommended endpoint in this directory. Multiple alternatives are listed above in case an endpoint is unavailable from your region.
What is the Backstop Testnet chain ID?+
Backstop Testnet uses chain ID 88558801 (0x5474cd1 in hexadecimal).
How do I add Backstop Testnet to my wallet?+
Use the Add to wallet button above. Your wallet will ask you to review and approve the network details.
Are public RPC endpoints safe?+
Treat public RPCs as infrastructure operated by third parties. They can observe requests, rate-limit traffic, or be unavailable. Never send private keys or seed phrases to an RPC.
Found an issue?
Report a broken RPC →Help keep network data current through a community contribution.