The problem with blockchains

Ethereum data is disorganized. Getting that data is neither quick nor cheap.

Data on the blockchain is for executing smart contracts, not analysis.

The full history of the blockchain is not necessary for executing smart contracts.

But analysis requires historical context from "archive nodes" that takes up hundreds of gigabytes of spaces and has billions of irrelevant transactions.

Blockchains are a big data problem. We are systems engineers with deep chops in scaling big data architectures.

Your smart contract engineers are busy.

Your engineers should be busy building new features, not scaling infrastructure.

Moreover, engineers can't really cater to the needs of product managers and analysts who are responsible for driving growth.

We speak the language of product managers and analysts.

You are missing out on growth.

The disconnect is a big loss of productivity and is hindering the adoption of your blockchain application.

The untapped potential is leaving the opportunity of billions of dollars on the table.

We can help accelerate your growth.

The Covalent solution

The hub for all your Ethereum data.

Covalent's full suite APIs enable teams to develop unique data analytical products for their customers across all platforms and devices.

Fast.

Our infrastructure is an industry-leading high-throughput and low-latency database designed to deliver scalability and decentralization.

Unified schemas.

Our data is normalized, cleaned and unified across various blockchain protocols. Balances, currencies and ratios are consistently formatted and localized.

Enriched.

Our data goes beyond network-level data with off-chain data. One API call to get token balances, NAV, ROI, VaR, etc. for all your blockchain-based assets.

VIP Support.

We can answer questions about Covalent, help you integrate best-practices and share stories about the inspiring products our customers have built for the world.

A one stop shop for blockchain data.

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

Get token balances

One API call to get token balances, current and historical values in dozens of quote currencies and cryptocurrency logos.

Get event logs

Automatically decode event logs with the right data types, including those emitted through proxy contracts.

Get Uniswap LP ROI

Compute real-time ROI of your current open positions and historical closed positions as a liquidity provider in Uniswap.

Get Kyber exchange rates

Compute real-time exchange rates for any supported pair block-by-block with standard aggregations.

>>> curl https://api.covalenthq.com/v1/1/address/{ensname.eth}/balances/

{
    "data": {
        "balances": [
        {
            "contract_address": "0xeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee",
            "balance": "2349416542132499968",
            "logo_url": "https://logos.covalenthq.com/tokens/0xeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee.png",
            "quote_rate_24h": "154.26019001704213",
            "quote_rate": "159.26154203702",
            "quote": "374.17170138730535",
            "quote_pct_change_24h": 1.032421534158783,
            "contract_name": null,
            "contract_ticker_symbol": "ETH",
            "contract_decimals": 18
        },
        {
            "contract_address": "0x89d24a6b4ccb1b6faa2625fe562bdd9a23260359",
            "balance": "200405005017460015104",
            "logo_url": "https://logos.covalenthq.com/tokens/0x89d24a6b4ccb1b6faa2625fe562bdd9a23260359.png",
            "quote_rate_24h": "0.9892345464742915",
            "quote_rate": "0.990828328985026",
            "quote": "198.5669562416857",
            "quote_pct_change_24h": 1.001611127023834,
            "contract_name": "DAI",
            "contract_ticker_symbol": "DAI",
            "contract_decimals": 18
        },
        {...},
        ],
        "address": "0x7284a8451d9a0e7dc62b3a71c0593ea2ec5c5638"
    },
    "error": false,
    "error_message": null,
    "error_code": null
}

>>> curl https://api.covalenthq.com/v1/1/tx/0x5c0b...f0fc/logs/

{
    "data": {
        "items": [
            {
                "log_offset": 65,
                "raw_log_topics": [
                    "0x440f19ba00000000000000000000000000000000000000000000000000000000",
                    "0x0000000000000000000000006bb863bd13767085321906e0df76cc8540c1a50f",
                    "0x0000000000000000000000000000000000000000000000000000000000003245",
                    "0x0000000000000000000000000000000000000000000000d8d726b7177a800000"
                ],
                "raw_log_data": "0x000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000400000000000000000000000000000000000000000000000000000000000000044440f19ba00000000000000000000000000000000000000000000000000000000000032450000000000000000000000000000000000000000000000d8d726b7177a800000",
                "sender_address": "0x448a5065aebb8e423f0896e6c5d525c040f59af3",
                "to_address": "0x448a5065aebb8e423f0896e6c5d525c040f59af3",
                "sender_address_label": "Maker: Contract 1",
                "to_address_label": "Maker: Contract 1",
                "decoded": {
                    "name": "LogNote",
                    "data": [
                        {
                            "name": "sig",
                            "type": "bytes4",
                            "value": "draw(bytes32,uint256)"
                        },
                        {
                            "name": "guy",
                            "type": "address",
                            "value": "0x6bb863bd13767085321906e0df76cc8540c1a50f"
                        },
                        {
                            "name": "foo",
                            "type": "bytes32",
                            "value": "0x0000000000000000000000000000000000000000000000000000000000003245"
                        },
                        {
                            "name": "bar",
                            "type": "bytes32",
                            "value": "0x0000000000000000000000000000000000000000000000d8d726b7177a800000"
                        },
                        {
                            "name": "wad",
                            "type": "uint256",
                            "value": null
                        },
                        {
                            "name": "fax",
                            "type": "bytes",
                            "value": null
                        }
                    ]
                }
            },
        ]
    }
}

>>> curl https://api.covalenthq.com/v1/1/uniswap/lp/{ensname.eth}/

{
    "data": {
        "items": [
        {
            "exchange": "0x2c4bd064b998838076fa341a83d007fc2fa50957",
            "token": "0x9f8f72aa9304c8b593d555f12ef6589cc3a579a2",
            "logo_url": "https://logos.covalenthq.com/tokens/0x9f8f72aa9304c8b593d555f12ef6589cc3a579a2.png",
            "contract_address": "0x9f8f72aa9304c8b593d555f12ef6589cc3a579a2",
            "contract_name": "Maker Token",
            "contract_ticker_symbol": "MKR",
            "contract_decimals": 18,
            "series": [
                {
                    "block_signed_at": "2018-11-02T10:18:27+00:00",
                    "eth_amount": "30000000000000000000",
                    "eth_amount_quote": 5973.678210621939,
                    "eth_quote_rate": 199.1226070207313,
                    "kind": "AddLiquidity",
                    "liquidity_balance": "30000000000000000000",
                    "liquidity_supply": "30000000000000000000",
                    "pool_share_percentage": 1,
                    "pool_total_eth_reserve": "30000000000000000000",
                    "pool_total_token_reserve": "9500000000000000000",
                    "provider": "0xf369af914dbed0ad7afdddebc631ee0fda1b4891",
                    "token_amount": "9500000000000000000"
                },
            ]
        },
        {...}
        ],
        "updated_at": "2019-06-17T15:37:10+00:00"
    },
    "error": false,
    "error_message": null,
    "error_code": null
}

>>> curl https://api.covalenthq.com/v1/functions/kyber-knc-dai/?aggregate[Avg]&group_by[block_signed_at__day]&starting-block=0

{
    "data": [
        {
            "block_signed_at__day": "2019-01-04T00:00:00+00:00",
            "avg_value_0": "0.15462477224999379506"
        },
        {
            "block_signed_at__day": "2019-01-05T00:00:00+00:00",
            "avg_value_0": "0.15722491091548281189"
        },
        {
            "block_signed_at__day": "2019-01-06T00:00:00+00:00",
            "avg_value_0": "0.16526676077323252884"
        },
        {
            "block_signed_at__day": "2019-01-07T00:00:00+00:00",
            "avg_value_0": "0.16614217464181210202"
        },
        ...
    ]
}

Our data.

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

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Billion rich transactions.

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Price feeds for fiat and crypto pairs.

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Decentralized finance protocols.

Case studies.

Use-cases include blockchain explorers, cryptocurrency wallets, bots, and investor portals. Help your customers make sense of their Ethereum-based assets.

Insights for a decentralized world.