Blockchair

Blockchair is a multi-blockchain explorer and data API providing unified access to on-chain data across 40+ blockchains (Bitcoin, Ethereum, Litecoin, Dogecoin, Ripple, Stellar, Monero, Cardano, and more). The REST API at api.blockchair.com exposes per-chain dashboards (address, transaction, block), raw node data, network stats, a SQL-like database query interface over outputs and other tables, and transaction broadcasting, authenticated with a simple key query parameter.

7 APIs 0 Features

BlockchainCryptocurrencyExplorerBitcoinEthereumOn-Chain Data

APIs

Blockchair Address Dashboards API

Per-chain address dashboards returning balance, transaction list, and aggregated stats for a single address, a set of up to 100 addresses, or an extended public key (xpub/ypub/z...

Blockchair Transaction Dashboards API

Transaction dashboards returning a parsed view of one transaction or a set of transactions by hash, including inputs, outputs, fees, and confirmation data, across supported chains.

Blockchair Block Dashboards API

Block dashboards returning a parsed view of one block or a set of blocks by height or hash, including header fields, transaction references, and block statistics, across support...

Blockchair Raw Data API

Raw node-level data for blocks and transactions (and ledgers, accounts, and operations on non-UTXO chains) as returned by the underlying blockchain node, for clients that need t...

Blockchair Stats API

Network statistics endpoints returning overall blockchain metrics (blocks, transactions, market data, difficulty, mempool) for a single chain, all chains at once, or cross-chain...

Blockchair Outputs Database API

SQL-like database query interface over the outputs table (and blocks, transactions, and addresses) on Bitcoin-like chains, supporting filtering by column, sorting, aggregation, ...

Blockchair Broadcast API

Transaction broadcasting endpoint that relays a signed, raw transaction to the network of the selected chain via an HTTP POST.

Collections

Blockchair API

OPEN

Pricing Plans

Blockchair Plans Pricing

6 plans

PLANS

Rate Limits

Blockchair Rate Limits

5 limits

RATE LIMITS

FinOps

Blockchair Finops

FINOPS

Resources

👥

GitHubOrganization

Sources

opencollection: 1.0.0
info:
  name: Blockchair API
  version: 2.0.80
request:
  auth:
    type: apikey
    key: key
    value: '{{apiKey}}'
    in: query
items:
- info:
    name: Stats
    type: folder
  items:
  - info:
      name: Get blockchain statistics
      type: http
    http:
      method: GET
      url: https://api.blockchair.com/bitcoin/stats
    docs: Returns overall statistics for a single blockchain.
  - info:
      name: Get multi-chain statistics
      type: http
    http:
      method: GET
      url: https://api.blockchair.com/stats
    docs: Returns aggregated statistics across all supported blockchains.
  - info:
      name: Get cross-chain token statistics
      type: http
    http:
      method: GET
      url: https://api.blockchair.com/cross-chain/usdt/stats
    docs: Returns statistics for a cross-chain token across the chains it is issued on.
- info:
    name: Address Dashboards
    type: folder
  items:
  - info:
      name: Get an address dashboard
      type: http
    http:
      method: GET
      url: https://api.blockchair.com/bitcoin/dashboards/address/1A1zP1eP5QGefi2DMPTfTL5SLmv7DivfNa
    docs: Returns balance, transaction list, and aggregated stats for a single address.
  - info:
      name: Get a multi-address dashboard
      type: http
    http:
      method: GET
      url: https://api.blockchair.com/bitcoin/dashboards/addresses/{addresses}
    docs: Returns combined data for a comma-separated set of up to 100 addresses.
  - info:
      name: Get an extended public key dashboard
      type: http
    http:
      method: GET
      url: https://api.blockchair.com/bitcoin/dashboards/xpub/{extended_key}
    docs: Returns balance and transaction data derived from an extended public key.
- info:
    name: Transaction Dashboards
    type: folder
  items:
  - info:
      name: Get a transaction dashboard
      type: http
    http:
      method: GET
      url: https://api.blockchair.com/bitcoin/dashboards/transaction/{hash}
    docs: Returns a parsed view of a single transaction.
  - info:
      name: Get a multi-transaction dashboard
      type: http
    http:
      method: GET
      url: https://api.blockchair.com/bitcoin/dashboards/transactions/{hashes}
    docs: Returns parsed views for a comma-separated set of transaction hashes.
- info:
    name: Block Dashboards
    type: folder
  items:
  - info:
      name: Get a block dashboard
      type: http
    http:
      method: GET
      url: https://api.blockchair.com/bitcoin/dashboards/block/700000
    docs: Returns a parsed view of a single block by height or hash.
  - info:
      name: Get a multi-block dashboard
      type: http
    http:
      method: GET
      url: https://api.blockchair.com/bitcoin/dashboards/blocks/{ids}
    docs: Returns parsed views for a comma-separated set of block heights.
- info:
    name: Raw Data
    type: folder
  items:
  - info:
      name: Get raw block data
      type: http
    http:
      method: GET
      url: https://api.blockchair.com/bitcoin/raw/block/700000
    docs: Returns raw node-level data for a block by height or hash.
  - info:
      name: Get raw transaction data
      type: http
    http:
      method: GET
      url: https://api.blockchair.com/bitcoin/raw/transaction/{hash}
    docs: Returns raw node-level data for a transaction by hash.
- info:
    name: Outputs Database
    type: folder
  items:
  - info:
      name: Query the outputs database
      type: http
    http:
      method: GET
      url: https://api.blockchair.com/bitcoin/outputs?q=is_spent(false)&s=value(desc)&limit=10
    docs: SQL-like query over the outputs table on Bitcoin-like chains.
  - info:
      name: Query the blocks database
      type: http
    http:
      method: GET
      url: https://api.blockchair.com/bitcoin/blocks?limit=10
    docs: SQL-like query over the blocks table.
  - info:
      name: Query the transactions database
      type: http
    http:
      method: GET
      url: https://api.blockchair.com/bitcoin/transactions?limit=10
    docs: SQL-like query over the transactions table.
- info:
    name: Broadcast
    type: folder
  items:
  - info:
      name: Broadcast a signed transaction
      type: http
    http:
      method: POST
      url: https://api.blockchair.com/bitcoin/push/transaction
      body:
        type: urlencoded
        data:
        - key: data
          value: '{signed_raw_transaction_hex}'
    docs: Relays a signed, raw transaction to the network of the selected chain.