Chainlist
Testnets
FST 12-22 V1

FST 12-22 V1

A developer-focused testnet blockchain, FST 12-22 V1 (Chain ID 94158) uses EJJ for safe, low-cost dApp and protocol experimentation.

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Faucet

FST 12-22 V1 Faucet

Get free EJJ fast and reliably. 0.01 EJJ/day.

Chain Overview

Chain ID

Native Token

FST 12-22 V1 Token (EJJ)

RPC

RPC Latency

Latest Block

EIP-7702

thirdweb Products

AI

Read and write onchain via natural language

Frequently asked questions

FST 12-22 V1 is a testnet network for the cross-chain bridge, using EJJ as the native gas currency for transactions and smart contracts. It is used to validate bridge transfers and message passing end-to-end, exercise relayers/oracles, and integrate dApps, wallets, and monitoring without mainnet risk. As of 2025-09-24, official performance metrics are not published (avg gas cost: N/A, block speed: N/A, TPS: N/A, activity: N/A); benchmark via the testnet RPC or explorer in your environment.

Unlike general-purpose mainnets or public testnets, FST 12-22 V1 is purpose-built for cross-chain bridge workflows on a testnet, with EJJ as the gas token and the expectation of periodic resets that may clear state. The network may adjust parameters between iterations to simulate varied load and finality, making it ideal for validating fee markets, nonce handling, and cross-chain message reliability. Because official metrics are not published, compare it by actively measuring block speed, gas price, TPS, and activity via RPC calls.

FST 12-22 V1 uses EJJ as the gas token for transaction fees. You can obtain EJJ by bridging from other chains or purchasing using thirdweb Bridge, or through faucets (for testnet).

To bridge EJJ to FST 12-22 V1, connect your wallet to thirdweb bridge, select your source chain, choose the token you want to bridge, select FST 12-22 V1 as the destination, enter the amount, and confirm the transaction. The bridge will handle the cross-chain transfer instantly.

To build on FST 12-22 V1 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 FST 12-22 V1 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 EJJ on FST 12-22 V1, ensure your wallet is connected to the FST 12-22 V1 network, enter the recipient's address, specify the amount of EJJ to send, review the gas fee, and confirm the transaction in your wallet.

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FST 12-22 V1

Faucet

FST 12-22 V1 Faucet

Chain Overview

Chain ID

Native Token

RPC

RPC Latency

Latest Block

EIP-7702

thirdweb Products

Wallets

Tokens

AI

HTTP API

Frequently asked questions

FST 12-22 V1

Faucet

FST 12-22 V1 Faucet

Chain Overview

Chain ID

Native Token

RPC

RPC Latency

Latest Block

EIP-7702

thirdweb Products

Wallets

Tokens

AI

HTTP API

Frequently asked questions

What is FST 12-22 V1 and what are its primary use cases?

What makes FST 12-22 V1 unique compared to other blockchain networks?

What is the gas token used for FST 12-22 V1, and how to get it?

How to bridge to FST 12-22 V1 network?

How to build on FST 12-22 V1 network?

How to add FST 12-22 V1 network to wallet?

How to send or receive EJJ on the FST 12-22 V1 network?