> For the complete documentation index, see [llms.txt](/llms.txt). # Unichain quickstart This quickstart guide will help you set up and make calls on the Unichain network using the Infura endpoints. Don't have an Infura account? Sign up for a free plan and start using the Unichain network! [Sign up](https://app.infura.io/register) ## Prerequisites[​](#prerequisites "Direct link to Prerequisites") Ensure you have an [API key](/developer-tools/dashboard/get-started/create-api/) with the Unichain network enabled. ## Make calls[​](#make-calls "Direct link to Make calls") ### curl[​](#curl "Direct link to curl") Run the following command in your terminal, replacing `` with your actual Infura API key: ``` curl https://unichain-mainnet.infura.io/v3/ \ -X POST \ -H "Content-Type: application/json" \ -d '{"jsonrpc": "2.0", "method": "eth_blockNumber", "params": [], "id": 1}' ``` note In Windows Powershell, quotations in `curl` commands can behave differently than expected. We recommend using Postman on Windows systems. ### Postman[​](#postman "Direct link to Postman") Call the JSON-RPC methods using [Postman](https://learning.postman.com/docs/getting-started/introduction/). Select **Run in Postman** to fork the collection and make requests. [![Run in Postman](https://run.pstmn.io/button.svg)](https://god.gw.postman.com/run-collection/8171681-49bfbc10-85ae-466c-8cf0-91eba9298b12?action=collection%2Ffork&source=rip%5Fmarkdown&collection-url=entityId%3D8171681-49bfbc10-85ae-466c-8cf0-91eba9298b12%26entityType%3Dcollection%26workspaceId%3Db8156083-f4da-481f-84fa-72dcc26cb146) info Set the correct [variables](https://learning.postman.com/docs/sending-requests/variables/#understanding-variables) for your API key and network before running requests. ### Node (JavaScript)[​](#node-javascript "Direct link to Node (JavaScript)") In these examples, you'll use [npm](https://docs.npmjs.com/downloading-and-installing-node-js-and-npm) as your package manager. #### Node Fetch[​](#node-fetch "Direct link to Node Fetch") 1. In your project folder, install the `node-fetch` package using npm: ``` npm i node-fetch ``` 2. Create your JavaScript file and copy the following code: Replace `` with your actual Infura API key. index.js ``` import fetch from 'node-fetch' fetch('https://unichain-mainnet.infura.io/v3/', { method: 'POST', headers: { 'Content-Type': 'application/json', }, body: JSON.stringify({ jsonrpc: '2.0', method: 'eth_blockNumber', params: [], id: 1, }), }) .then(response => response.json()) .then(data => { console.log(data) }) .catch(error => { console.error(error) }) ``` 3. Run the code using the following command: ``` node index.js ``` #### Axios[​](#axios "Direct link to Axios") 1. In your project folder, install the `axios` package using npm: ``` npm i axios ``` 2. Create your JavaScript file and copy the following code: Replace `` with your actual Infura API key. index.js ``` const axios = require('axios') axios .post('https://unichain-mainnet.infura.io/v3/', { jsonrpc: '2.0', method: 'eth_blockNumber', params: [], id: 1, }) .then(response => { console.log(response.data) }) .catch(error => { console.error(error) }) ``` 3. Run the code using the following command: ``` node index.js ``` #### Ethers[​](#ethers "Direct link to Ethers") 1. In your project folder, install the `ethers` package using npm: ``` npm install ethers ``` 2. Create your JavaScript file and copy the following code: Replace `` with your actual Infura API key. index.js ``` const ethers = require('ethers') const provider = new ethers.providers.JsonRpcProvider( 'https://unichain-mainnet.infura.io/v3/' ) provider .getBlockNumber() .then(blockNumber => { console.log(blockNumber) }) .catch(error => { console.error(error) }) ``` 3. Run the code using the following command: ``` node index.js ``` #### Web3.js[​](#web3js "Direct link to Web3.js") 1. In your project folder, [install the latest version of the web3.js library](https://www.npmjs.com/package/web3?activeTab=versions) 2. Create your JavaScript file and copy the following code: Replace `` with your actual Infura API key. index.js ``` var { Web3 } = require('web3') var provider = 'https://unichain-mainnet.infura.io/v3/' var web3Provider = new Web3.providers.HttpProvider(provider) var web3 = new Web3(web3Provider) web3.eth.getBlockNumber().then(result => { console.log('Latest Unichain Block is ', result) }) ``` 3. Run the code using the following command: ``` node index.js ``` ### Python[​](#python "Direct link to Python") 1. In your project folder, install the `requests` library: ``` pip install requests ``` 2. Create your Python file and copy the following code: Replace `` with your actual Infura API key. index.py ``` import requests import json url = "https://unichain-mainnet.infura.io/v3/" payload = { "jsonrpc": "2.0", "method": "eth_blockNumber", "params": [], "id": 1 } headers = {'content-type': 'application/json'} response = requests.post(url, data=json.dumps(payload), headers=headers).json() print(response) ``` 3. Run the code using the following command: ``` python index.py ``` ## Next steps[​](#next-steps "Direct link to Next steps") Now that you have successfully made a call to the Unichain network, you can explore more functionalities and APIs provided by Infura. Here are some suggestions: - **Explore other Unichain APIs**: Infura supports a wide range of APIs. You can find more information in the [JSON-RPC API method documentation](/services/reference/unichain/json-rpc-methods/). - **Try out different networks**: Infura supports multiple networks including Ethereum, Arbitrum, Linea, Polygon, Optimism, and more. - **Monitor your usage**: Monitor your usage on the [Infura dashboard](/developer-tools/dashboard/how-to/dashboard-stats/) to ensure you're not hitting your rate limits. Remember, the MetaMask community is here to help. If you have any questions or run into any issues, check out the [MetaMask community](https://community.metamask.io/) for help and answers to common questions.