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Migrate RPC and explorer from Caldera to ZKSync OS testnet#369

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rasca merged 1 commit intodevfrom
fix-network
Feb 24, 2026
Merged

Migrate RPC and explorer from Caldera to ZKSync OS testnet#369
rasca merged 1 commit intodevfrom
fix-network

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@rasca rasca commented Feb 24, 2026

Summary

  • Replace all Caldera RPC URLs with new ZKSync OS testnet endpoint (zksync-os-testnet-genlayer.zksync.dev)
  • Update MetaMask wallet block explorer URLs to new ZKSync explorer
  • Update all env examples, deployment docs, and Amplify build config

Test plan

  • Verify MetaMask can add the Asimov network with the new RPC
  • Verify builder journey network steps work correctly
  • Update AWS SSM parameters for dev and prod (see PR description commands below)

AWS SSM Parameter Updates

Dev

aws ssm put-parameter --name "/tally/dev/validator_rpc_url" --value "https://zksync-os-testnet-genlayer.zksync.dev" --type "String" --overwrite
aws ssm put-parameter --name "/points/dev/validator_rpc_url" --value "https://zksync-os-testnet-genlayer.zksync.dev" --type "String" --overwrite

Prod

aws ssm put-parameter --name "/tally/prod/validator_rpc_url" --value "https://zksync-os-testnet-genlayer.zksync.dev" --type "String" --overwrite
aws ssm put-parameter --name "/points/prod/validator_rpc_url" --value "https://zksync-os-testnet-genlayer.zksync.dev" --type "String" --overwrite

Replace all Caldera RPC and explorer URLs with the new ZKSync OS
testnet endpoints (zksync-os-testnet-genlayer.zksync.dev).
@rasca rasca merged commit 91a2900 into dev Feb 24, 2026
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