F(x)Core Testnet is the public testing network for Function X’s Cosmos‑SDK blockchain, secured by Tendermint BFT and using FX as the native gas token. It lets developers trial cross‑chain bridging via f(x)Bridge, IBC transfers with other Cosmos zones, dApp integrations, validator operations, and on‑chain governance before mainnet deployment. For quick comparison: single‑digit‑second block times and faucet‑funded FX lead to near‑zero effective gas cost; TPS and activity vary by campaign and can be monitored via the explorer linked from functionx.io.
F(x)Core stands out by combining native IBC interoperability with an integrated cross‑chain bridge (f(x)Bridge) to EVM ecosystems like Ethereum and BNB Chain, enabling seamless asset and data movement across multiple networks. Its fast finality and low fees make bridge round‑trips and cross‑chain dApp workflows performant—blocks confirm in seconds with low gas, supporting sustained throughput suitable for high‑frequency testing on testnet.
F(x)Core Testnet Network uses FX as the gas token for transaction fees. You can obtain FX by bridging from other chains or purchasing using thirdweb Bridge, or through faucets (for testnet).
To bridge FX to F(x)Core Testnet Network, connect your wallet to thirdweb bridge, select your source chain, choose the token you want to bridge, select F(x)Core Testnet Network as the destination, enter the amount, and confirm the transaction. The bridge will handle the cross-chain transfer instantly.
To build on F(x)Core Testnet Network you can use thirdweb, which provides an easy way to build, monetize and scale your apps, games or agents. You can find detailed guides and documentation on https://portal.thirdweb.com to get started quickly.
To add F(x)Core Testnet Network to your wallet, you can connect your wallet and click on [Add to Wallet] button at the top of the page. Alternatively, you can add the network manually using the RPC URL and chain details and add it to your wallet's network settings.
To send FX on F(x)Core Testnet Network, ensure your wallet is connected to the F(x)Core Testnet Network network, enter the recipient's address, specify the amount of FX to send, review the gas fee, and confirm the transaction in your wallet.