# Bitcoin Testnet4 RPC and network details

Source: https://www.alchemy.com/rpc/bitcoin-testnet4

Bitcoin Testnet4 is the current public Bitcoin test network, replacing Testnet3. It offers a fresh chain with fewer blocks, more stable difficulty adjustment, and lower fees, so developers and infrastructure can test Bitcoin software and integrations without mainnet risk.

## Network details

- Network: Testnet4
- Environment: Testnet
- Category: L1
- Native token: BTC
- Gas token: BTC

## Endpoints

- Alchemy RPC: https://bitcoin-testnet4.g.alchemy.com/v2/API_KEY

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

## Alchemy product support

Supported on Bitcoin Testnet4: RPC API.

Not currently supported: Transaction receipts API, Block Timestamp API, User OP Simulation API, Prices API, Debug API, Trace API, Bundler API, Token API, NFT API, Websockets, gRPC, Gas Manager, Webhooks, Transfers API.

## Build on Alchemy

Alchemy offers Bitcoin Testnet4 RPC endpoints, so you can access reliable read and write data in real time for testing.

## Available networks

- Bitcoin Mainnet: https://www.alchemy.com/rpc/bitcoin
- Bitcoin Signet (testnet): https://www.alchemy.com/rpc/bitcoin-signet
- Bitcoin Testnet (testnet): https://www.alchemy.com/rpc/bitcoin-testnet

## Links

- Alchemy docs: https://www.alchemy.com/docs/reference/bitcoin-api-quickstart
- Official docs: https://developer.bitcoin.org/
- Website: https://bitcoin.org/
- GitHub: https://github.com/bitcoin
- Block explorer: https://mempool.space/testnet4