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MetaMask

On node access details, click Connect wallet to inject your Chainstack endpoint automatically. If you need to add the network manually, use:
  • Network name: Plasma Mainnet
  • RPC URL: your Chainstack HTTPS endpoint
  • Chain ID: 9745
  • Currency symbol: XPL
  • Block explorer URL: https://plasmascan.to
For the testnet, use:
  • Network name: Plasma Testnet
  • RPC URL: your Chainstack HTTPS endpoint
  • Chain ID: 9746
  • Currency symbol: XPL
  • Block explorer URL: https://testnet.plasmascan.to
Refer to node access details for your endpoint URL format and credentials.

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web3.py

Build dapps using web3.py and Plasma nodes deployed with Chainstack.
  1. Install web3.py.
  2. Connect over HTTP.

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HTTP

Use the HTTPProvider to connect to your node endpoint and get the latest block number. 
from web3 import Web3

web3 = Web3(Web3.HTTPProvider('YOUR_CHAINSTACK_ENDPOINT'))
print(web3.eth.block_number)
where
  • YOUR_CHAINSTACK_ENDPOINT — your node HTTPS endpoint protected either with the key or password
  • USERNAME — the username to your node if you use a password-protected endpoint
  • PASSWORD — the password to your node if you use a password-protected endpoint
  • HOSTNAME — the host name of your node
Plasma network IDs:
  • Mainnet: 9745
  • Testnet: 9746
See also node access details.

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ethers.js

Build dapps using ethers.js and Plasma nodes deployed with Chainstack.
  1. Install ethers.js.
  2. Connect over HTTP.

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HTTP

Use the JsonRpcProvider object to connect to your node endpoint and get the latest block number: 
const { ethers } = require("ethers");

const provider = new ethers.JsonRpcProvider("YOUR_CHAINSTACK_ENDPOINT", {
  chainId: 9745,
  name: "plasma"
});

provider.getBlockNumber().then(console.log);
For the testnet, set chainId: 9746 instead. where YOUR_CHAINSTACK_ENDPOINT is your node HTTPS endpoint protected either with the key or password. See also node access details.

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Hardhat

Configure Hardhat to deploy contracts and interact through your Plasma nodes.
  1. Install Hardhat and create a project.
  2. Create a new environment in hardhat.config.js: 
    require("@nomicfoundation/hardhat-ethers");
...
module.exports = {
  solidity: "0.8.26",
  networks: {
    plasmaMainnet: {
      url: "YOUR_CHAINSTACK_ENDPOINT",
      chainId: 9745,
      accounts: ["YOUR_PRIVATE_KEY"]
    },
    plasmaTestnet: {
      url: "YOUR_CHAINSTACK_ENDPOINT_FOR_TESTNET",
      chainId: 9746,
      accounts: ["YOUR_PRIVATE_KEY"]
    }
  }
};
    where
    • YOUR_CHAINSTACK_ENDPOINT — your node HTTPS or WSS endpoint protected either with the key or password. See node access details.
    • YOUR_CHAINSTACK_ENDPOINT_FOR_TESTNET — your Plasma testnet node endpoint.
    • YOUR_PRIVATE_KEY — the private key of the account that you use to deploy the contract
  3. Run npx hardhat run scripts/deploy.js --network plasmaMainnet to deploy to mainnet or --network plasmaTestnet for the testnet.
Plasma chain IDs are documented in the Plasma network reference.

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Remix IDE

To make Remix IDE interact with the network through a Chainstack node:
  1. Get MetaMask and set it to interact through a Chainstack node. See MetaMask.
  2. In Remix IDE, navigate to the Deploy & run transactions tab. Select Injected Provider - MetaMask in Environment.
This will engage MetaMask and make Remix IDE interact with the network through a Chainstack node.

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Foundry

  1. Install Foundry.
  2. Use --rpc-url to run the operation through your Chainstack node.

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Forge

Use forge to develop, test, and deploy your smart contracts. To deploy a contract: 
forge create CONTRACT_NAME --contracts CONTRACT_PATH --private-key YOUR_PRIVATE_KEY --rpc-url YOUR_CHAINSTACK_ENDPOINT --chain-id 9745
To deploy to the testnet, switch to --rpc-url YOUR_CHAINSTACK_ENDPOINT_FOR_TESTNET --chain-id 9746. where
  • CONTRACT_NAME — name of the contract in the Solidity source code
  • CONTRACT_PATH — path to your smart contract
  • YOUR_PRIVATE_KEY — the private key to your funded account that you will use to deploy the contract
  • YOUR_CHAINSTACK_ENDPOINT — your mainnet node HTTPS endpoint protected either with the key or password
  • YOUR_CHAINSTACK_ENDPOINT_FOR_TESTNET — your testnet node HTTPS endpoint

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Cast

Use cast to interact with the network and the deployed contracts. To get the latest block number: 
cast block-number --rpc-url YOUR_CHAINSTACK_ENDPOINT --chain-id 9745
Switch to your Plasma testnet endpoint and --chain-id 9746 to target the testnet.
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