Our Free Tier changed on March 1st
Read More

Build crypto tax solutions that scale

Building a crypto tax application? Struggling to find an all-in-one data provider that lets you access multiple blockchains? Covalent provides comprehensive historical data through a cohesive interface, so you can confidently support your customers anywhere they may have transacted on-chain.

scroll gif

99 Supported Networks

See 80+ more

The most extensive data coverage in Web3

Transacting in Web3 may require many steps, but getting on-chain data doesn't.

Covalent supports a wide range of use cases and queries, so you can easily access the data you need. With our level of coverage, you are well-equipped to provide the best service for your high-value clients.

We specialize in understanding blockchains and can support you every step of the way.


Covalent provides complete and accurate records of crypto assets, transactions, and holdings. This data helps ensure compliance with tax laws and regulations, minimizing the risk of error for you and your clients.


As a company, we prioritize compliance. Our API is built to the highest security standards, keeping your clients' data safe and secure.


While blockchain data is public, user information is confidential. We care about protecting the privacy of your clients and your organization.


We know that preparing taxes requires a significant amount of time and resources. Our endpoints undergo an extensive QA process, ensuring we provide complete and reliable data to help streamline your workflow.

Why choose Covalent for your data needs?

With alternative options like self-hosting nodes, RPC providers, or third-party tax service companies, here are a few reasons that Covalent remains a number one choice for tax providers.


The Covalent API is built to handle large amounts of data in a single API call, making it well-suited for tax season when you need to process large amounts of blockchain data.


Covalent provides professional support for enterprise customers, so you can focus on delivering efficient tax solutions to your clients, never worrying about getting help when you need it.


Build once, use often. We know you can't waste resources during tax season. Covalent's structured schema means you only need to build your system once.

Our approach

We at Covalent believe that easy access to data is critical for blockchains to reach mainstream adoption. We keep that bigger vision in mind for everything we build so our users can grow with us.

What customers are saying about us

"The team at Covalent has been a pleasure to work with. They're always quick to respond to any questions or concerns, and their expertise has been invaluable in helping us navigate the complex world of blockchain data."

Blockchain App Manager
Audit, Tax, Business and Technology Consulting

"We've tried several other blockchain data providers, but none have come close to the level of service and support we've received from Covalent. They've gone above and beyond to help us integrate their data into our systems and understand it."

Lead Engineer
Asset Management Company

"Covalent has been a game changer for us. We no longer have to spend hours manually gathering data and cross-referencing it with multiple sources. With just a few API calls, we can get all the data we need."

Software Engineer
Web3 Infrastructure Provider

Get transactions for address


Given chain_id and wallet address, return all transactions along with their decoded log events. This endpoint does a deep-crawl of the blockchain to retrieve all kinds of transactions that references the address including indexed topics within the event logs.

Make powerful queries

Covalent's rich API response means you can drastically reduce your number of API calls. Minimize the time you take to process financial data and focus on other things, like supporting your clients.

Crawl through a complete history of the blockchain

Need to find transactions from years ago? We index blockchains from the genesis block, allowing you to access complete data from any point in time.

Estimate your cost

Have all your API usage data immediately available when you sign in to your account dashboard. Covalent utilizes a credit system to track API usage.

Ready to learn more?

Check out some of these resources related to crypto taxes with the Covalent API.

Ready to sign up?

We partner with you throughout your build process, providing our data expertise, email and video call support, custom endpoints and personalized recommendations. Our pricing options are customizable to accommodate your data needs.