Covalent | One unified API. One billion possibilities.

One unified API.
One billion possibilities.

Covalent provides a unified API bringing visibility
to billions of blockchain data points.

Blockchains Supported
Elrond
Coming Soon
Elrond
Coming Soon
Moonbeam
Coming Soon
Near
Coming Soon
Polkadot
Coming Soon
Starkware
Coming Soon
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The absolute richest
blockchain data on
the internet.

Our vision is to empower the pioneers of
tomorrow by providing the richest and
most robust data infrastructure for the
entire blockchain ecosystem.

25 Billion

rich transactions indexed including every
transaction since genesis for 6 blockchains.

200K+

smart contracts available with internal
data structures for querying.

30,000+

price feeds for fiat and crypto pairs.

30 second

refresh rate.

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Use the Covalent API to access data.

Explore and contribute to the absolute
richest blockchain data on the internet

Build Using
the API
Explore the
Marketplace
Create your
Own API
Wallets
NFT Dashboards
Taxation Calculators
Create a use case

Building a Wallet?

Aggregate historical balances, positions and PnL across dozens of DeFi protocols to build rich and compelling interfaces for your users.

Zerion Zerion uses Covalent for their multi-blockchain strategy to show balances and positions across Polygon and Binance Smart Chain. The primary benefit - they were able to go to market in less than a day.
Zerion Mockup
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A one stop shop for
blockchain data.

Developers get simple APIs that allow for quick
integration in new or existing products

Token Balance
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One API call to get ERC20 and NFT token balances, current and historical values in dozens of quote currencies and cryptocurrency logos.
Uniswap V2 Network Assets
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Return a paginated list of Uniswap pools sorted by exchange volume along with swap count, liquidity token prices and reserve depths.
Historical Token Holders
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Reconstruct the state of any smart contract token to retrieve current and historical token holders.
Log Events
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Automatically decode event logs with the right data types, including those emitted through proxy contracts. Make calls by contract address or topic hash(es).

Give me the token balances for this wallet.

>>> curl https://api.covalent.com/v1/1/address/{address}/balances_v2/
Choose your blockchain below
>>> curl https://api.covalenthq.com/v1/1/address/{address}/balances_v2/ { "address": "string", "updated_at": "1970-01-01T00:00:00.000Z", "next_update_at": "1970-01-01T00:00:00.000Z", "quote_currency": "string", "items": [ { "contract_decimals": 18, "contract_name": "string", "contract_ticker_symbol": "string", "contract_address": "string", "supports_erc": [ "string" ] } ] }
API Key
Covalent provides a unified API to all
assets secured by a blockchain network.
atom
Block Explorer
See live activity
on indexing
and querying
operations.
Launching Soon | Q3 2021
Transaction Hash
0xad61650e0f890766133…
0xad61650e0f890766133…
0xad61650e0f890766133…
0xad61650e0f890766133…
0xad61650e0f890766133…
0xad61650e0f890766133…
Timestamp
22/10/2020, 00:12:08
22/10/2020, 00:12:08
22/10/2020, 00:12:08
22/10/2020, 00:12:08
22/10/2020, 00:12:08
22/10/2020, 00:12:08
Type
ERC20 deposit
ERC20 deposit
ERC20 deposit
ERC20 deposit
ERC20 deposit
ERC20 deposit
Query Fees
$2.5 (50%)
$2.5 (50%)
$2.5 (50%)
$2.5 (50%)
$2.5 (50%)
$2.5 (50%)
Blockchain
Ethereum
Ethereum
Ethereum
Ethereum
Ethereum
Ethereum
eye
Token Economics
CQT token is a staking token and
governance token.
covalent

The most comprehensive
blockchain ecosystem

Our partners

Over 100 projects building and
succeeding with the Covalent API.

Our Early Backers

Proud to build the decentralized
future with our partners.

Organizing the world's
blockchain information
with you.

We envision a future that is a fair and equitable to
all data stakeholders. Join us on our mission!

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