What is Covalent

Covalent provides the industry-leading Unified API bringing visibility to billions of Web3 data points.

Developers use Covalent to build exciting multi-chain applications like crypto wallets, NFT galleries, and investor dashboard tools utilizing data from nearly 40 supported blockchains. Covalent is trusted by a community of 35,000+ developers and 3000+ applications including 0x, Zerion, Rainbow Wallet, Rotki, Bitski and many others.

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Why Covalent

Simply put, Covalent's Unified API allows you to pull detailed, historical and granular blockchain data from multiple blockchains with no code. Covalent allows developers to drastically cut time, costs and complexity from blockchain application development.

Developers love Covalent for the following reasons:

  • Automatically indexed: All code on the underlying blockchain is automatically indexed for you, the developer. Covalent runs full archive nodes and makes an exact replica of every single contract, every wallet and every single transaction in the Covalent database. The Covalent database hosts billions of rows of data and terabytes of data.
  • No-code: Covalent offers a "no-code" solution and all customizations can be done without writing a single line of code by the developer. There is no need to invest expensive engineering time in building indexing code that you'd rather invest in building your application.
  • Multiple blockchains, multiple use cases: The same unified API works across 30+ blockchains and dozens of use cases like crypto-wallets, NFT galleries, investor dashboard tools, DAO tooling - the possibilities are endless.

Supported Networks

Latest Updates

April 2022
Covalent Spotlights Use Cases with DEX Data
Covalent releases a new use case webpage focused on its leading Decentralized Exchange (DEX) endpoints and their applications https://www.covalenthq.com/use-cases/dex/. This is the first of many curated use case pages to onboard new and experienced developers into Web3.
Mar 2022
New NFT Dashboard Template
Covalent releases a new template that anyone can use to create a customizable NFT dashboard that pulls granular, historical NFT data from multiple blockchains including Ethereum, Polygon, Avalanche and many others. Following the README instructions on our GitHub https://github.com/covalenthq/nft-dashboard-template, users can fetch aggregate NFT data with no reliance on marketplace tools like the OpenSea API.
Feb 2022
New Solana Balances Endpoint
Covalent launches non-EVM support with Solana balances, bringing the industry-leading unified API experience to tens of thousands of developers in the Solana ecosystem. The `Get token balances for address` endpoint enables developers to fetch token balances including NFTs for any wallet address on Solana with a single API call. With this new data, developers can include Solana assets in multi-chain crypto wallets, NFT galleries and more. This is just step one in the process of fully indexing Solana across all of our Class A endpoints.
Jan 2022
New NFT Market Data Endpoints
Covalent has introduced 2 new Class A endpoints which provide granular NFT market data for numerous marketplaces across 5 blockchains – Ethereum, Binance Smart Chain, Polygon, Avalanche, and Moonriver. The new endpoints provide both a global view of NFT collections ranked by market cap, as well as a detailed view of historical sale and floor price information for a particular collection. Thus far, it’s been hard to understand markets outside of Ethereum/OpenSea. These APIs address this gap by providing unprecedented access to this much-requested on-chain data.
Dec 2021
New XY=K endpoint
Covalent has introduced a list of Class B endpoints under the XY=K family which provide the richest and most robust on-chain DEX data available today. The Unified xy=k endpoints return all the required data for any UniswapV2-like protocol such as SpiritSwap, Pangolin, SushiSwap and more, on a variety of blockchains, enabling developers to access these protocols in a matter of minutes.
Nov 2021
New API Docs Release
Today, we at Covalent are excited to launch a new reference documentation experience for our Unified Blockchain APIs. This new product is a complete re-thinking of the experience after speaking with thousands of developers who have come to rely on the Covalent API for their everyday blockchain data needs.
Last modified: October 27, 2022: october-changelog-2022 (#243) (b6121bb)