# Frequently Asked Questions (FAQs) **Q: Does VeChain have RPC URLs?** VeChain has a list of public nodes that can found [here](https://docs.vechain.org/how-to-run-a-node/nodes#mainnet-nodes), but they all expose RESTful API endpoints instead of RPC. This interface should be preferred. For faster integration and migration from Ethereum, you can run a [docker](https://hub.docker.com/r/vechain/sdk-rpc-proxy) or the command\ \&#xNAN;*`npx @vechain/sdk-rpc-proxy`* A local [JSON-RPC proxy](https://www.npmjs.com/package/@vechain/sdk-rpc-proxy?activeTab=readme) of a Testnet node will be available at `http://127.0.0.1:8545`. The service is also hosted by a third-party here: . **Q: Is authentication required to access the node?** * No authentication is required for public node access. **Q: Is HTTPS supported?** * Yes, HTTPS is Supported and recommended. **Q: What is the request rate limit?** * Up to 1000 requests per minute (RPM) is supported. IP whitelisting may be required to prevent rate limiting when accessing public nodes. #### Q: What is VeChain's consensus mechanism? * Proof of Authority (PoA) 2.0. **Q: How are transaction fees handled?** * VTHO is used for gas fees. 30% of transaction fees are burned. **Q: What is VeChain Network and Chain ID of the RPC proxy?** * Network ID: * Mainnet: 100009 * Testnet: 100010 * Chain ID: * Mainnet: 100009 * Testnet: 100010 Note that VeChainThor considers the id of the *genesis block* (block number 0) as chainId. **Q: What is the time to finality?** * Typically 30-60 minutes, with deterministic finality requiring two BFT rounds every 30 minutes. Blocks and transactions are justified after the first round. **Q: What is the native token?** * Name: VeChain Token (VET) Symbol: VET Decimals: 18 **Q: Does it uses the same address format than Ethereum?** * Yes, VeChain uses the 0x address format. **Q: If I import my Ethereum mnemonic into VeWorld, will I get the same address?** * Yes, but you have to select the Ethereum derivation path.