# Gensyn Testnet RPC and network details

Source: https://www.alchemy.com/rpc/gensyn-testnet

This is Gensyn's primary testnet.

## Network details

- Network: Testnet
- Chain ID: 685685
- Environment: Testnet
- Category: ROLLUP
- Gas token: ETH
- Framework: Optimism
- Data availability: Ethereum
- Settlement: Ethereum
- Provider: Alchemy
- Block time: <1s

## Endpoints

- Public RPC: https://gensyn-testnet.g.alchemy.com/public
- Public WebSocket: wss://gensyn-testnet.g.alchemy.com/public
- Alchemy RPC: https://gensyn-testnet.g.alchemy.com/v2/API_KEY
- Alchemy WebSocket: wss://gensyn-testnet.g.alchemy.com/v2/API_KEY

Replace API_KEY with a key from https://dashboard.alchemy.com/signup.

## Alchemy product support

Supported on Gensyn Testnet: RPC API, Debug API, Bundler API, Token API, Websockets, Gas Manager, Webhooks, Transfers API.

Not currently supported: Transaction receipts API, Block Timestamp API, User OP Simulation API, Prices API, Trace API, NFT API, gRPC.

## Build on Alchemy

Alchemy offers Gensyn testnet RPC endpoints and websockets, as well as gas sponsorship and a Debug API, so you can test your app with reliable onchain data before shipping to mainnet.

## Available networks

- Gensyn Mainnet: https://www.alchemy.com/rpc/gensyn

## Links

- Alchemy docs: https://www.alchemy.com/docs/reference/gensyn-api-quickstart
- Official docs: https://docs.gensyn.ai/
- Website: https://www.gensyn.ai/
- GitHub: https://github.com/gensyn-ai
- Block explorer: http://gensyn-testnet.explorer.alchemy.com/
- Faucet: https://www.alchemy.com/faucets/gensyn-testnet