What is a cross-chain API?

One Bitquery endpoint and schema that returns the same datasets — DEX trades, transfers, balances, holders — across 40+ chains, so you write a query once and run it on any chain.

Which chains are supported?

40+ chains across EVM (Ethereum, BNB, Base, Arbitrum, Polygon, Optimism and more), Solana, Tron and Bitcoin — all through one GraphQL schema.

Can I query multiple chains in one request?

Yes. Compose multi-chain queries and aggregate results, ideal for cross-chain portfolios, analytics and money-flow tracing.

How do I get started?

Get a free API key at account.bitquery.io and query graphql.bitquery.io — one key works across every supported chain.

CROSS-CHAIN API · GraphQL · WebSocket · Kafka · gRPC

Cross-Chain Crypto Data API — query 40+ blockchains in one call

Stop running a pipeline per chain. Bitquery decodes Ethereum, Solana, BNB, Base, Tron and 40+ more into one schema — so trades, transfers, balances and token holders read the same way on every chain. Change the network, keep the query, and combine chains in a single request.

Start building free →Talk to sales

Powering cross-chain data for Nansen logo

EVM(network: eth).DEXTradesThe same DEXTrades shape, pointed at Ethereum — Uniswap, Curve & more.Docs →

eth_dex_trades.graphqlCopy

subscription {
  EVM(network: eth) {
    DEXTrades(
      where: {Trade: {Dex:
        {ProtocolName: {is: "uniswap_v3"}}}}
    ) {
      Trade {
        Buy { Price Amount
          Currency { Symbol } }
        Dex { ProtocolName }
      }
    }
  }
}

responseSTREAMING

Pair · DEXSidePriceAmount

200 · gRPC · 92msstreaming.bitquery.io

Trusted by 40,000+ developers & teams like

40+

Chains supported

1PB+

Blockchain data indexed

10B+

API calls / month

99.9%

Production uptime

Forget a pipeline per chain

One integration shouldn't mean one stack per blockchain.

Supporting many chains usually means a node, a decoder and a schema for each — and brittle glue to stitch them together. We indexed every chain into one model, so the query you write for Ethereum runs on Solana, BNB or Base by changing a single word.

What you're doing

Build it yourself

Bitquery Cross-Chain API

Add a new chain

Stand up a node and decoder

Change the network in the query

EVM and non-EVM together

Two stacks, two schemas

One schema across all chains

A wallet's full portfolio

Query each chain, then merge

Combine chains in one call

Token transfers anywhere

A pipeline per network

Same Transfers shape everywhere

Holders for any token

Custom indexer per chain

One TokenHolders dataset

Keep up with reorgs & forks

Re-derive state per chain

Handled across every chain

Delivery channels

Four ways to get cross-chain data — one schema underneath.

Design your query once in GraphQL, then read the exact same fields as GraphQL streams, Kafka, gRPC or a bulk cloud export — for every chain. Pick the channel that fits your latency and volume, no second pipeline per network.

GraphQL streams ↗Query + WebSocket subscriptions

~1s

Historical + real-time, browser-ready

Kafka streams ↗Full firehose · offset replay

<500ms

Guaranteed delivery, Protobuf/JSON

gRPC · CoreCast ↗Binary Protobuf · MEV / HFT

<100ms

Lowest-latency cross-chain stream

Cloud data export ↗Datashares · Parquet dumps

Bulk

S3 · Snowflake · BigQuery · Azure

Chain coverage

EVM and non-EVM, decoded into one feed.

The same datasets — DEXTrades, Transfers, BalanceUpdates, TokenHolders — span every chain below. Use EVM(network: …) for EVM chains and a dedicated block like Solana { } for non-EVM, in one request.

ChainQueryWhat you get

EtEthereumEVM · network: ethTrades, transfers, balances, holders and events on the same schema

Sol

SolanaSolana { }Raydium, Orca & Jupiter swaps, SPL transfers and balances decoded

Bnb

BNB ChainEVM · network: bscPancakeSwap trades, BEP-20 transfers and wallet balances

BaseEVM · network: baseAerodrome swaps and the full transfer / balance surface on Base

TronTron { }TRC-20 transfers, balances and DEX activity across the Tron network

ArbitrumEVM · network: arbitrumCamelot & Uniswap trades plus transfers and balances on Arbitrum

PolygonEVM · network: maticQuickSwap & Uniswap trades, ERC-20 transfers and balances

BitcoinBitcoin { }Inputs, outputs and address activity across the Bitcoin UTXO chain

+ Avalanche, Optimism, Cronos, Fantom, Litecoin, Dogecoin & 40+ chains total →

Cross-chain datasets

Every dataset, one GraphQL endpoint, every chain.

From a single transfer to a wallet's full multi-chain portfolio, the surface is one endpoint — no node, no subgraph, no custom indexer per chain. Each dataset is historical and streamable in real time over WebSocket, Kafka or gRPC.

Trades

Cross-Chain DEX Trades

Every swap on Ethereum, Solana, BNB, Base and 40+ more — one DEXTrades shape, only the network changes.

Read the docs →Transfers

Multi-Chain Transfers

Token and native transfers for any address on any chain, read with the same Transfers fields everywhere.

Read the docs →Balances

Cross-Chain Balances

A wallet's full portfolio across every supported chain — aggregate balances per token from one schema.

Read the docs →Holders

Token Holders API

Rank holders for any token on any chain by balance — the feed behind multi-chain distribution dashboards.

Read the docs →Supply

Total Supply & Mints

Track total supply, mints and burns for tokens across chains without a node or a custom indexer per network.

Read the docs →Solana

Solana Data API

Bring Solana into the same query as your EVM chains — swaps, transfers, balances and holders, one endpoint.

Read the docs →

Build it this weekend

The cross-chain products people ship on us.

Each one is the same schema with the network swapped — query GraphQL for dashboards, or subscribe over Kafka or gRPC for bots.

GraphQL

Cross-chain portfolio tracker

Read a wallet's balances on Ethereum, Solana, BNB and Base in one request, then aggregate to a single USD portfolio view.

EVM(network: eth) { BalanceUpdates }
Solana { BalanceUpdates } # same call

Read the docs →

GraphQL

Multi-chain token analytics

Track trades, transfers and holders for a token wherever it's bridged — one schema, every chain it lives on.

DEXTrades
where: { Trade: { Currency: { Symbol: "USDC" } } }

Read the docs →

gRPC · Kafka

Cross-chain transfer monitor

Stream transfers for an address across every chain at once — the feed behind compliance, treasury and whale-alert tooling.

subscribe Transfers
where: { Transfer: { Sender: "<wallet>" } }

Read the docs →

"We did a thorough search of the market for the best onchain data. Bitquery came out on top — and now powers all live prices across Nansen. We don't think of them as a vendor. They're a partner."

Alexander Karsten

Nansen

40+

Chains decoded into one schema

1 call

Combine many chains in a single query

<100ms

Kafka & gRPC stream latency

Bitquery does the hard work of parsing blockchain transaction data into a usable form so that we don't have to. We use their interface to diagnose issues with complex transactions and their analytics as a starting point for our own.

Alex Knaggs

0x Protocol

They proved they had the technology to deliver sophisticated data solutions. We extended our support through the Binance X fellowship — building an open-source library of visualization widgets on their blockchain data.

Flora Sun

Director, Binance X

The complex raw data is available at different levels of detail and from different viewpoints — whether we need simple aggregated transfers or parameters for failed contract calls. The support is responsive, friendly and quick.

Jan Dreske

Backend Developer, Blockpit

Partnering with Bitquery has been highly cost-effective — leveraging their established infrastructure rather than building our own let us rapidly expand our blockchain support and reach a much broader segment of on-chain users.

Nick Christie

Co-Founder, Syla

Bitquery's products are very intuitive and easy to use. We currently use their products to obtain DEX-related trading and liquidity information, which saves us the manpower and tedious technical details required to develop our own system. Their excellent technical team deserves special praise; they provide near-24/7 support and resolve issues quickly. I greatly appreciate their products and work ethic.

Data Team

Ourbit

Bitquery provides the infrastructure we rely on every day. Fast, reliable, and comprehensive across the chains that matter to our business.

Webacy

webacy.com

Pricing

Start free. Scale when you ship.

Query every blockchain on every plan — no chain is paywalled. Move to commercial when you need volume, SLAs and bulk datashares.

Developer

$0 / month

Free plan for developers or small projects.

All blockchains, all plans
10 requests / minute
2 streams for testing
GraphQL IDE access

Get started free

Cross-chain data questions, answered.

How do I query multiple blockchains in one API call?

Use GraphQL aliasing to put several chain blocks in the same request — an EVM(network: eth) block, a Solana { } block and more — and Bitquery returns them together. Each chain exposes the same datasets, so the fields you read are identical across chains. Sign up at ide.bitquery.io for an API key.

Which blockchains does the Cross-Chain API support?

40+ chains — including Ethereum, BNB Chain, Base, Arbitrum, Polygon, Optimism and Avalanche on EVM, plus non-EVM chains like Solana, Tron and Bitcoin — all decoded into one schema.

Can I get a wallet's balance across all chains?

Yes. Read BalanceUpdates for the same address on each chain in a single request and aggregate to one portfolio view — the basis for cross-chain portfolio and treasury tools.

Do EVM and non-EVM chains use the same schema?

The dataset names — DEXTrades, Transfers, BalanceUpdates, TokenHolders — are shared across chains. EVM chains live under EVM(network: …), while non-EVM chains like Solana have their own block with the same datasets inside.

Can I stream cross-chain data in real time?

Yes. Subscribe over WebSocket, Kafka or gRPC with sub-100ms latency for trades, transfers and balance changes on each chain — built for monitors, alerting and trading bots.

Do I need a separate API key per chain?

No. One Bitquery API key gives you every supported chain on every plan — no chain is paywalled, and you can combine as many chains as you need in a single query.

Ship cross-chain in one integration.

Free API key, every chain unlocked, no node to run. Query Ethereum, Solana, BNB and 40+ more from your first call — one schema, one endpoint.

Get your API key →Read the docs

No credit card · 10K free points for your first month · All 40+ chains included

Cross-Chain Crypto Data API — query 40+ blockchains in one call

One integration shouldn't mean one stack per blockchain.

Four ways to get cross-chain data — one schema underneath.

EVM and non-EVM, decoded into one feed.

Every dataset, one GraphQL endpoint, every chain.

Cross-Chain DEX Trades

Multi-Chain Transfers

Cross-Chain Balances

Token Holders API

Total Supply & Mints

Solana Data API

The cross-chain products people ship on us.

Cross-chain portfolio tracker

Multi-chain token analytics

Cross-chain transfer monitor

What teams say about our data

Start free. Scale when you ship.

Cross-chain data questions, answered.

Ship cross-chain in one integration.