Amberdata On-Chain API

openapi: 3.0.1
info:
  title: Amberdata API
  description: >-
    Amberdata's institutional-grade digital asset and blockchain data API.
    Provides spot market data (prices, OHLCV, tickers, trades, order books),
    derivatives across futures and options (funding rates, open interest,
    liquidations, implied volatility, Greeks), DeFi (DEX and lending), and
    on-chain blockchain data (blocks, transactions, addresses, tokens). Every
    request requires the x-api-key header. An optional api-version header
    selects a dated API version.
  termsOfService: https://www.amberdata.io/terms-of-service
  contact:
    name: Amberdata Support
    url: https://www.amberdata.io/contact
  version: '1.0'
servers:
  - url: https://api.amberdata.com
    description: Amberdata REST API
security:
  - apiKeyAuth: []
tags:
  - name: Spot
    description: Spot market data across supported exchanges.
  - name: Futures
    description: Futures market data and analytics.
  - name: Options
    description: Options market data and analytics.
  - name: DeFi
    description: Decentralized finance (DEX and lending) data.
  - name: On-Chain
    description: On-chain blockchain data (blocks, transactions, addresses, tokens).
paths:
  /markets/spot/exchanges/reference:
    get:
      operationId: getSpotExchangesReference
      tags:
        - Spot
      summary: Spot exchanges reference
      description: >-
        Returns reference information for all supported spot exchanges and the
        instruments (pairs) available on each.
      parameters:
        - $ref: '#/components/parameters/Exchange'
        - $ref: '#/components/parameters/Pair'
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiResponse'
  /markets/spot/prices/{pair}/latest:
    get:
      operationId: getSpotPriceLatest
      tags:
        - Spot
      summary: Latest spot price for a pair
      description: Returns the latest price for the specified spot pair (e.g. eth_usd).
      parameters:
        - $ref: '#/components/parameters/PairPath'
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiResponse'
  /markets/spot/ohlcv/{pair}/historical:
    get:
      operationId: getSpotOhlcvHistorical
      tags:
        - Spot
      summary: Historical spot OHLCV
      description: >-
        Returns historical OHLCV (open/high/low/close/volume) time series for
        the specified spot pair.
      parameters:
        - $ref: '#/components/parameters/PairPath'
        - $ref: '#/components/parameters/Exchange'
        - $ref: '#/components/parameters/StartDate'
        - $ref: '#/components/parameters/EndDate'
        - $ref: '#/components/parameters/TimeInterval'
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiResponse'
  /markets/spot/tickers/{pair}:
    get:
      operationId: getSpotTickers
      tags:
        - Spot
      summary: Spot tickers
      description: >-
        Returns historical and live best bid and best ask (top of book) for the
        specified spot instrument.
      parameters:
        - $ref: '#/components/parameters/PairPath'
        - $ref: '#/components/parameters/Exchange'
        - $ref: '#/components/parameters/StartDate'
        - $ref: '#/components/parameters/EndDate'
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiResponse'
  /markets/spot/trades/{pair}:
    get:
      operationId: getSpotTrades
      tags:
        - Spot
      summary: Historical spot trades
      description: >-
        Returns historical (time series) trade data for the specified spot pair
        or instrument.
      parameters:
        - $ref: '#/components/parameters/PairPath'
        - $ref: '#/components/parameters/Exchange'
        - $ref: '#/components/parameters/StartDate'
        - $ref: '#/components/parameters/EndDate'
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiResponse'
  /markets/spot/order-book-snapshots/{pair}:
    get:
      operationId: getSpotOrderBookSnapshots
      tags:
        - Spot
      summary: Spot order book snapshots
      description: >-
        Returns order book snapshots for the specified spot pair with
        granularity from 1 minute to 1 day.
      parameters:
        - $ref: '#/components/parameters/PairPath'
        - $ref: '#/components/parameters/Exchange'
        - $ref: '#/components/parameters/StartDate'
        - $ref: '#/components/parameters/EndDate'
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiResponse'
  /markets/futures/exchanges/reference:
    get:
      operationId: getFuturesExchangesReference
      tags:
        - Futures
      summary: Futures exchanges reference
      description: >-
        Returns reference data for futures instruments across exchanges,
        including base and quote symbols, price and volume limits, precision,
        contract terms, and trading availability.
      parameters:
        - $ref: '#/components/parameters/Exchange'
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiResponse'
  /markets/futures/tickers/{instrument}:
    get:
      operationId: getFuturesTickers
      tags:
        - Futures
      summary: Futures tickers
      description: Returns ticker data for the specified futures instrument.
      parameters:
        - $ref: '#/components/parameters/InstrumentPath'
        - $ref: '#/components/parameters/Exchange'
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiResponse'
  /markets/futures/funding-rates/{instrument}:
    get:
      operationId: getFuturesFundingRates
      tags:
        - Futures
      summary: Futures funding rates
      description: Returns funding rate data for the specified futures instrument.
      parameters:
        - $ref: '#/components/parameters/InstrumentPath'
        - $ref: '#/components/parameters/Exchange'
        - $ref: '#/components/parameters/StartDate'
        - $ref: '#/components/parameters/EndDate'
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiResponse'
  /markets/futures/open-interest/{instrument}:
    get:
      operationId: getFuturesOpenInterest
      tags:
        - Futures
      summary: Futures open interest
      description: Returns open interest data for the specified futures instrument.
      parameters:
        - $ref: '#/components/parameters/InstrumentPath'
        - $ref: '#/components/parameters/Exchange'
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiResponse'
  /markets/futures/liquidations/{instrument}:
    get:
      operationId: getFuturesLiquidations
      tags:
        - Futures
      summary: Futures liquidations
      description: Returns liquidation events for the specified futures instrument.
      parameters:
        - $ref: '#/components/parameters/InstrumentPath'
        - $ref: '#/components/parameters/Exchange'
        - $ref: '#/components/parameters/StartDate'
        - $ref: '#/components/parameters/EndDate'
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiResponse'
  /markets/options/exchanges/reference:
    get:
      operationId: getOptionsExchangesReference
      tags:
        - Options
      summary: Options instruments and reference
      description: >-
        Returns all available exchanges, currencies, and option instruments,
        filterable by a timestamp for historical reference.
      parameters:
        - $ref: '#/components/parameters/Exchange'
        - $ref: '#/components/parameters/Currency'
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiResponse'
  /markets/options/trades/{instrument}:
    get:
      operationId: getOptionsTrades
      tags:
        - Options
      summary: Options trades
      description: Returns trade data for the specified options instrument.
      parameters:
        - $ref: '#/components/parameters/InstrumentPath'
        - $ref: '#/components/parameters/Exchange'
        - $ref: '#/components/parameters/StartDate'
        - $ref: '#/components/parameters/EndDate'
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiResponse'
  /markets/options/order-book-snapshots/{instrument}:
    get:
      operationId: getOptionsOrderBookSnapshots
      tags:
        - Options
      summary: Options order book snapshots
      description: Returns order book snapshots for the specified options instrument.
      parameters:
        - $ref: '#/components/parameters/InstrumentPath'
        - $ref: '#/components/parameters/Exchange'
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiResponse'
  /defi/dex/trades/{pair}:
    get:
      operationId: getDefiDexTrades
      tags:
        - DeFi
      summary: DEX trades
      description: >-
        Returns decentralized exchange (DEX) trade history for the specified
        pair (e.g. Uniswap V3 pools).
      parameters:
        - $ref: '#/components/parameters/PairPath'
        - $ref: '#/components/parameters/StartDate'
        - $ref: '#/components/parameters/EndDate'
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiResponse'
  /defi/lending/protocols:
    get:
      operationId: getDefiLendingProtocols
      tags:
        - DeFi
      summary: DeFi lending protocols
      description: Returns lending protocol metrics across supported DeFi lending markets.
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiResponse'
  /blockchains/{blockchainId}/blocks:
    get:
      operationId: getBlocks
      tags:
        - On-Chain
      summary: Blocks
      description: >-
        Returns block information for the specified blockchain, including block
        number, hash, timestamp, and aggregate metrics.
      parameters:
        - $ref: '#/components/parameters/BlockchainId'
        - $ref: '#/components/parameters/StartDate'
        - $ref: '#/components/parameters/EndDate'
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiResponse'
  /blockchains/{blockchainId}/transactions:
    get:
      operationId: getTransactions
      tags:
        - On-Chain
      summary: Transactions
      description: >-
        Returns transaction data including sending and receiving addresses
        (with token transfers), fees (gas), amounts, op codes, block number and
        hash, and timestamps.
      parameters:
        - $ref: '#/components/parameters/BlockchainId'
        - $ref: '#/components/parameters/StartDate'
        - $ref: '#/components/parameters/EndDate'
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiResponse'
  /blockchains/{blockchainId}/transactions/{hash}:
    get:
      operationId: getTransaction
      tags:
        - On-Chain
      summary: Transaction by hash
      description: Returns a single transaction by its hash on the specified blockchain.
      parameters:
        - $ref: '#/components/parameters/BlockchainId'
        - name: hash
          in: path
          required: true
          description: The transaction hash.
          schema:
            type: string
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiResponse'
  /blockchains/{blockchainId}/addresses/{address}/balances:
    get:
      operationId: getAddressBalances
      tags:
        - On-Chain
      summary: Address balances
      description: >-
        Returns account balance and token balances for the specified address on
        the given blockchain.
      parameters:
        - $ref: '#/components/parameters/BlockchainId'
        - $ref: '#/components/parameters/AddressPath'
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiResponse'
  /blockchains/{blockchainId}/addresses/{address}/transactions:
    get:
      operationId: getAddressTransactions
      tags:
        - On-Chain
      summary: Address transactions
      description: Returns transactions for the specified address on the given blockchain.
      parameters:
        - $ref: '#/components/parameters/BlockchainId'
        - $ref: '#/components/parameters/AddressPath'
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiResponse'
  /blockchains/{blockchainId}/tokens/{address}/information:
    get:
      operationId: getTokenInformation
      tags:
        - On-Chain
      summary: Token information
      description: >-
        Returns token information including name, symbol, contract address,
        decimals, total supply, and circulating supply.
      parameters:
        - $ref: '#/components/parameters/BlockchainId'
        - $ref: '#/components/parameters/AddressPath'
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiResponse'
  /blockchains/{blockchainId}/tokens/{address}/transfers:
    get:
      operationId: getTokenTransfers
      tags:
        - On-Chain
      summary: Token transfers
      description: >-
        Returns token transfers including sender, receiver, amount, transaction
        hash, and timestamp.
      parameters:
        - $ref: '#/components/parameters/BlockchainId'
        - $ref: '#/components/parameters/AddressPath'
        - $ref: '#/components/parameters/StartDate'
        - $ref: '#/components/parameters/EndDate'
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiResponse'
  /blockchains/{blockchainId}/tokens/{address}/holders:
    get:
      operationId: getTokenHolders
      tags:
        - On-Chain
      summary: Token holders
      description: >-
        Returns token holder information including the number of holders, their
        addresses, and tokens held by each.
      parameters:
        - $ref: '#/components/parameters/BlockchainId'
        - $ref: '#/components/parameters/AddressPath'
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiResponse'
components:
  securitySchemes:
    apiKeyAuth:
      type: apiKey
      in: header
      name: x-api-key
      description: >-
        Unique, user-specific API key. Required on every REST request via the
        x-api-key header.
  parameters:
    Exchange:
      name: exchange
      in: query
      required: false
      description: Filter by exchange (e.g. binance, coinbase, deribit).
      schema:
        type: string
    Pair:
      name: pair
      in: query
      required: false
      description: Filter by trading pair (e.g. eth_usd, btc_usd).
      schema:
        type: string
    PairPath:
      name: pair
      in: path
      required: true
      description: The trading pair (e.g. eth_usd, btc_usd).
      schema:
        type: string
    InstrumentPath:
      name: instrument
      in: path
      required: true
      description: The instrument identifier for the futures or options contract.
      schema:
        type: string
    Currency:
      name: currency
      in: query
      required: false
      description: Filter by underlying currency (e.g. BTC, ETH).
      schema:
        type: string
    BlockchainId:
      name: blockchainId
      in: path
      required: true
      description: >-
        The blockchain network identifier (e.g. ethereum-mainnet,
        bitcoin-mainnet). Also selectable via the x-amberdata-blockchain-id
        header on some namespaces.
      schema:
        type: string
    AddressPath:
      name: address
      in: path
      required: true
      description: The on-chain address or token contract address.
      schema:
        type: string
    StartDate:
      name: startDate
      in: query
      required: false
      description: Start of the time range (ISO 8601 timestamp or milliseconds epoch).
      schema:
        type: string
    EndDate:
      name: endDate
      in: query
      required: false
      description: End of the time range (ISO 8601 timestamp or milliseconds epoch).
      schema:
        type: string
    TimeInterval:
      name: timeInterval
      in: query
      required: false
      description: Time resolution of the returned series (e.g. minutes, hours, days).
      schema:
        type: string
  schemas:
    ApiResponse:
      type: object
      description: >-
        Standard Amberdata API envelope. The requested data is returned under
        the payload property, alongside the HTTP status and a status message.
      properties:
        status:
          type: integer
          description: HTTP-style status code echoed in the response body.
          example: 200
        title:
          type: string
          description: Human-readable status message.
          example: OK
        description:
          type: string
          description: Additional context about the response.
        payload:
          type: object
          description: >-
            The response payload. Shape varies by endpoint; time series
            endpoints typically return metadata plus a data array.
          properties:
            metadata:
              type: object
              description: Metadata describing the payload (columns, request params, etc.).
            data:
              type: array
              description: The array of records for the requested resource.
              items:
                type: object