Evgeny Konstantinov

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  • Shared and dedicated Bitcoin nodes

    A shared node is the node whose resources you share with other customers. A dedicated node is the node you exclusively use for your production purposes. With a shared node, you pay for JSON-RPC req...

  • Shared and dedicated Ethereum nodes

    A shared node is the node whose resources you share with other customers. A dedicated node is the node you exclusively use for your production purposes. With a shared node, you pay for JSON-RPC req...

  • Rate limiting on Ethereum nodes

    Shared Ethereum nodes are rate limited to 500 active connections. This is to prevent DDoS attacks. Dedicated Ethereum nodes are not rate limited. See also Shared and dedicated Ethereum nodes.

  • Gas limitations of eth_call and eth_estimateGas on Ethereum nodes

    In brief The gas parameter of eth_call and eth_estimateGas is limited to 25000000 Gwei for Ethereum shared nodes. The gas parameter limitation on Ethereum dedicated nodes can be customized on reque...

  • Using eth-proxy Docker for authentication

    Introduction Some projects do not accept an RPC endpoint with basic authentication. As a workaround, you can use the Chainstack eth-proxy Docker container to proxy the basic authentication requests...

  • Using quorum-proxy Docker for authentication

    Introduction Some projects do not accept an RPC endpoint with basic authentication. As a workaround, you can use the Chainstack quorum-proxy Docker container to proxy the basic authentication reque...

  • Using Web3j-OpenAPI with Chainstack nodes

    Introduction You can use Web3j-OpenAPI to generate API endpoints based on your Solidity smart contract. You can then run the generated API server with and send requests to your deployed smart contr...

  • Querying Ethereum nodes with GraphQL vs web3.js v1.x vs web3.js v2.x BatchRequest

    This article gives an overview of the difference between executing a query on a Geth node via GraphQL vs web3.js v1.x vs web3.js v2.x. Overview GraphQL — you can do one query to execute different ...

  • 14-day free trial period

    The trial usage is completely free for the first 14 days on the Developer plan. After the first 14 days, your usage of consortium nodes will be billable. Dedicated Ethereum or Bitcoin nodes are not...

  • Setting up an Amazon EKS cluster to integrate with Chainstack

    Using Chainstack, you can deploy all Chainstack-supported blockchain nodes and networks into your own Amazon Since Chainstack is not managing your Amazon EKS infrastructure, please keep in mind tha...