--- title: Welcome description: Quicknode documentation and reference material for for RPC and REST API, NFT API, Token API and QuickAlerts. --- // RPC-REST-GRPC # API Documentation > For the complete documentation index, see [llms.txt](/docs/llms.txt) for Web3 Interact with RPC, REST, and gRPC endpoints across 77+ blockchains using ready-to-run examples in JavaScript, Python, Go, and more. Learn to leverage Quicknode products like Streams, Webhooks, and IPFS to build, monitor, and scale blockchain applications from one unified platform. [GET STARTED](/docs/ethereum) Send your first request ```bash curl https://{your-endpoint-name}.quiknode.pro/{your-token}/ \ -X POST \ -H "Content-Type: application/json" \ --data '{"method":"eth_blockNumber","params":[],"id":1,"jsonrpc":"2.0"}' ``` ```bash curl https://{your-endpoint-name}.quiknode.pro/{your-token}/ \ -X POST \ -H "Content-Type: application/json" \ --data '{"method":"eth_blockNumber","params":[],"id":1,"jsonrpc":"2.0"}' ``` ```javascript const ethers = require("ethers"); (async () => { const provider = new ethers.providers.JsonRpcProvider("https://{your-endpoint-name}.quiknode.pro/{your-token}/"); const blockNum = await provider.getBlockNumber(); console.log(blockNum); })(); ``` ```javascript const ethers = require("ethers"); (async () => { const provider = new ethers.providers.JsonRpcProvider("https://{your-endpoint-name}.quiknode.pro/{your-token}/"); const blockNum = await provider.getBlockNumber(); console.log(blockNum); })(); ``` ```javascript var myHeaders = new Headers(); myHeaders.append("Content-Type", "application/json"); var raw = JSON.stringify({ "method": "eth_blockNumber", "params": [], "id": 1, "jsonrpc": "2.0" }); var requestOptions = { method: 'POST', headers: myHeaders, body: raw, redirect: 'follow' }; fetch("https://{your-endpoint-name}.quiknode.pro/{your-token}/", requestOptions) .then(response => response.text()) .then(result => console.log(result)) .catch(error => console.log('error', error)); ``` ```javascript var myHeaders = new Headers(); myHeaders.append("Content-Type", "application/json"); var raw = JSON.stringify({ "method": "eth_blockNumber", "params": [], "id": 1, "jsonrpc": "2.0" }); var requestOptions = { method: 'POST', headers: myHeaders, body: raw, redirect: 'follow' }; fetch("https://{your-endpoint-name}.quiknode.pro/{your-token}/", requestOptions) .then(response => response.text()) .then(result => console.log(result)) .catch(error => console.log('error', error)); ``` ```python import requests import json url = "https://{your-endpoint-name}.quiknode.pro/{your-token}/" payload = json.dumps({ "method": "eth_blockNumber", "params": [], "id": 1, "jsonrpc": "2.0" }) headers = { 'Content-Type': 'application/json' } response = requests.request("POST", url, headers=headers, data=payload) print(response.text) ``` ```python import requests import json url = "https://{your-endpoint-name}.quiknode.pro/{your-token}/" payload = json.dumps({ "method": "eth_blockNumber", "params": [], "id": 1, "jsonrpc": "2.0" }) headers = { 'Content-Type': 'application/json' } response = requests.request("POST", url, headers=headers, data=payload) print(response.text) ``` ```ruby require "uri" require "json" require "net/http" url = URI("https://{your-endpoint-name}.quiknode.pro/{your-token}/") https = Net::HTTP.new(url.host, url.port) https.use_ssl = true request = Net::HTTP::Post.new(url) request["Content-Type"] = "application/json" request.body = JSON.dump({ "method": "eth_blockNumber", "params": [], "id": 1, "jsonrpc": "2.0" }) response = https.request(request) puts response.read_body ``` ```ruby require "uri" require "json" require "net/http" url = URI("https://{your-endpoint-name}.quiknode.pro/{your-token}/") https = Net::HTTP.new(url.host, url.port) https.use_ssl = true request = Net::HTTP::Post.new(url) request["Content-Type"] = "application/json" request.body = JSON.dump({ "method": "eth_blockNumber", "params": [], "id": 1, "jsonrpc": "2.0" }) response = https.request(request) puts response.read_body ``` ```python from web3 import Web3, HTTPProvider w3 = Web3(HTTPProvider('https://{your-endpoint-name}.quiknode.pro/{your-token}/')) print (w3.eth.blockNumber) ``` ```python from web3 import Web3, HTTPProvider w3 = Web3(HTTPProvider('https://{your-endpoint-name}.quiknode.pro/{your-token}/')) print (w3.eth.blockNumber) ``` ```ruby require 'eth' client = Eth::Client.create 'https://{your-endpoint-name}.quiknode.pro/{your-token}/' payload = { "jsonrpc": "2.0", "method": "eth_blockNumber", "params": [], "id": "1" } response = client.send(payload.to_json) puts response ``` ```ruby require 'eth' client = Eth::Client.create 'https://{your-endpoint-name}.quiknode.pro/{your-token}/' payload = { "jsonrpc": "2.0", "method": "eth_blockNumber", "params": [], "id": "1" } response = client.send(payload.to_json) puts response ``` - [Core API](/docs/ethereum): Use the quickest and most reliable blockchain API with unparalleled latency, reliability, and scalability across all major blockchains. - [Webhooks](/docs/webhooks): Leverage a fully customizeable real-time blockchain data feed and advanced alerting, and include real-time blockchain event driven logic into your workflows. - [Streams](/docs/streams): Leverage a custom real-time blockchain data feed, advanced alerting, and include real-time blockchain event driven logic into your workflows. - [Marketplace](/docs/marketplace-addons): Create and publish custom add-ons that extend Quicknode's services. These add-ons allow developers to integrate additional tools, APIs, and features can be built on top of Quicknode's core offering, helping others build better blockchain tools. - [IPFS](/docs/ipfs): Use Quicknode to upload, store, manage, and retrieve data on the IPFS network through our pinning services and dedicated gateways. - [Custom RPC Options](/docs/custom-rpc-options): High-level enterprise solutions including Fully Dedicated Setup and Hybrid Dedicated gRPC (Solana) options, offering unmatched performance, isolation, and scalability for latency-sensitive and workload-intensive projects. - [Key-Value Store](/docs/key-value-store): Manage and access large-scale datasets like wallet addresses through a robust storage solution. Update and utilize your data on-demand via REST API or integrate seamlessly with Streams filters. - [Quicknode SDK](/docs/quicknode-sdk): A powerful JavaScript and TypeScript SDK designed to facilitate interaction with Quicknode infrastructure. Framework-agnostic library with comprehensive support for Core and add-on RPC functions. ## QuickStart Resources - [Building a Polymarket Copy Trading Bot](https://www.quicknode.com/guides/defi/polymarket-copy-trading-bot): Build a Polymarket trading bot that tracks a target wallet, logs trades in real time, and adds position tracking and risk caps. - [What is MEV (Maximum Extractable Value) and How to Protect Your Transactions with Quicknode](https://www.quicknode.com/guides/ethereum-development/MEV/what-is-mev): In this guide, we delve into Maximal Extractable Value (MEV), its risks, importance, and how it plays a role in blockchains today. - [How to Mint an NFT Across Different Blockchains using Chainlink CCIP](https://www.quicknode.com/guides/cross-chain/CCIP/cross-chain-nft): In this guide, users learn how to mint an NFT on one blockchain from another using the Chainlink Cross-Chain Interoperability Protocol (CCIP). - [How to Use Jupiter API to Create a Solana Trading Bot](https://www.quicknode.com/guides/solana-development/3rd-party-integrations/jupiter-api-trading-bot): In this guide, we will walk through how to use Quicknode's Metis add-on which hosts Jupiter's onchain routing engine to create a simple Solana trading bot. - [Create an ERC20 Token in 3 Steps and Deploy It](https://www.quicknode.com/guides/ethereum-development/smart-contracts/how-to-create-and-deploy-an-erc20-token): Learn how to create and deploy an ERC20 token on Ethereum and other EVM chains in just 3 steps. Follow this streamlined guide with code, tools, and tips. - [How to Access Ethereum Mempool](https://www.quicknode.com/guides/ethereum-development/transactions/how-to-access-ethereum-mempool): This guide will describe what the Ethereum Mempool is and demonstrate how to access and query it with Quicknode. #### Start building in minutes \- no infra setup needed Get instant access to high-performance RPC endpoints. [TRY FREE](https://www.quicknode.com/signup?utm_source=internal&utm_campaign=docs&utm_content=welcome) ## API Documentation for Web3 Interact with RPC, REST, and gRPC endpoints across 80+ blockchains using ready-to-run examples in JavaScript, Python, Go, and more. Use Quicknode products like Streams, Webhooks, and IPFS to build and run blockchain applications from one platform. ## Send Your First Request Make a JSON-RPC call to get the latest block number on Ethereum: ``` curl https://docs-demo.quiknode.pro/ \ -X POST \ -H "Content-Type: application/json" \ --data '{"method":"eth_blockNumber","params":[],"id":1,"jsonrpc":"2.0"}' ``` ## Developer Tools - **[Core API](/docs/ethereum/)**: Blockchain API endpoints across 80+ chains with low latency and high availability. - **[Streams](/docs/streams)**: Custom real-time blockchain data pipelines with filtering and transformation logic. - **[Webhooks](/docs/webhooks)**: Real-time blockchain data feed and alerting for on-chain events. - **[Marketplace Add-Ons](/docs/marketplace-addons)**: Third-party add-ons that extend Quicknode with extra capabilities. - **[IPFS](/docs/ipfs)**: Upload and retrieve data on IPFS through the Quicknode gateway. - **[Key-Value Store](/docs/key-value-store)**: Large-scale dataset storage accessible through a REST API on your Quicknode endpoint. - **[Custom RPC Options](/docs/custom-rpc-options)**: Dedicated infrastructure for enterprise workloads. - **[Quicknode SDK](/docs/quicknode-sdk)**: JavaScript and TypeScript SDK for interacting with Quicknode services programmatically. ## API Documentation for Web3 Interact with RPC, REST, and gRPC endpoints across 80+ blockchains using ready-to-run examples in JavaScript, Python, Go, and more. Use Quicknode products like Streams, Webhooks, and IPFS to build and run blockchain applications from one platform. ## Send Your First Request Make a JSON-RPC call to get the latest block number on Ethereum: ```bash curl https://docs-demo.quiknode.pro/ \ -X POST \ -H "Content-Type: application/json" \ --data '{"method":"eth_blockNumber","params":[],"id":1,"jsonrpc":"2.0"}' ``` ```javascript const response = await fetch('https://docs-demo.quiknode.pro/', { method: 'POST', headers: { 'Content-Type': 'application/json' }, body: JSON.stringify({ method: 'eth_blockNumber', params: [], id: 1, jsonrpc: '2.0', }), }); const data = await response.json(); console.log(data.result); ``` ```python import requests url = "https://docs-demo.quiknode.pro/" payload = {"method": "eth_blockNumber", "params": [], "id": 1, "jsonrpc": "2.0"} response = requests.post(url, json=payload) print(response.json()["result"]) ``` ## Developer Tools - **[Core API](/docs/ethereum/)**: Blockchain API endpoints across 80+ chains with low latency and high availability. - **[Streams](/docs/streams)**: Custom real-time blockchain data pipelines with filtering and transformation logic. - **[Webhooks](/docs/webhooks)**: Real-time blockchain data feed and alerting for on-chain events. - **[Marketplace Add-Ons](/docs/marketplace-addons)**: Third-party add-ons that extend Quicknode with extra capabilities. - **[IPFS](/docs/ipfs)**: Upload and retrieve data on IPFS through the Quicknode gateway. - **[Key-Value Store](/docs/key-value-store)**: Large-scale dataset storage accessible through a REST API on your Quicknode endpoint. - **[Custom RPC Options](/docs/custom-rpc-options)**: Dedicated infrastructure for enterprise workloads. - **[Quicknode SDK](/docs/quicknode-sdk)**: JavaScript and TypeScript SDK for interacting with Quicknode services programmatically.