1) BlockScout is the official blockchain explorer for the xDai Chain. With this full-featured, open-source explorer you can view transactions, accounts & balances, access data via the API, and read and verify smart contracts.
2) AnyBlock Analytics Explorer is convenient for exploring recent transactions and blocks and locating common information quickly.
There are endpoints provided by POA . They are used to connect to the network.
A bridge is required to move locked Dai from Ethereum and mint xDai on xDai Chain
You can access the bridge via:
TokenBridge UI at https://dai-bridge.poa.network
Interactions with Smart contracts https://docs.tokenbridge.net/xdai-bridge/how-to-use-xdai-bridge-without-ui
Bridge UI built-in into AlphaWallet, BurnerWallet, BurnerFactory
Biconomy allows for for gasless transactions and improved DApp UX.
Pocket provides a decentralized API layer for DApp developers (IOS, Android & Web SDKs available) and blockchain users.
TheGraph supports xDai data indexing, querying and display.
Chainbeat provides monitoring and analytics tools for DApp developers.
Tenderly dashboard supports xDai transaction inspection - smart contracts can also be pushed to the dashboard for real-time monitoring.
Tutorial on how to use GasRelay in your Dapp by Portis. With a few lines of code, gas fees are shifted to DApp owners rather than users, creating an intuitive user experience. https://docs.portis.io/#/gas-relay
WebSockets Endpoint (can be useful to setup BlockScout for xDai) wss://dai-trace-ws.blockscout.com/ws
Archive Fullnode Endpoint (Useful for setting up BlockScout for xDai) https://dai-trace-ws.blockscout.com
Chain spec files and known bootnodes of the xDai network https://github.com/poanetwork/poa-chain-spec/tree/dai
Netstats, an overview of xDai Chain nodes http://dai-netstat.poa.network
DApps Deployed to xDai: Partial list of deployed DApps along with statistics and links: https://www.stateofthedapps.com/rankings/platform/xdai