Blockchain.com Charts API

openapi: 3.0.3
info:
  title: Blockchain.com , Stats & Market Data Addresses Charts API
  description: 'Aggregated JSON endpoints covering Bitcoin network statistics, historical chart datasets,

    mining pool distribution, BTC exchange rates (ticker) and fiat-to-BTC conversion. Generated

    from https://www.blockchain.com/explorer/api/charts_api and

    https://www.blockchain.com/explorer/api/exchange_rates_api.

    '
  version: 1.0.0
  contact:
    name: Blockchain.com
    url: https://www.blockchain.com/api
  license:
    name: Blockchain.com API Terms of Service
    url: https://www.blockchain.com/legal/terms
  x-generated-from: documentation
  x-last-validated: '2026-05-30'
servers:
- url: https://api.blockchain.info
  description: Blockchain.com aggregated data host (charts, stats, pools).
- url: https://blockchain.info
  description: Blockchain.info explorer host (ticker, fiat-to-BTC conversion).
tags:
- name: Charts
  description: Historical time-series datasets for Bitcoin network metrics.
paths:
  /charts/{chartName}:
    get:
      operationId: getChart
      summary: Blockchain.com Get a Chart Time-series
      description: 'Returns a time-series dataset for the requested chart name. Common chart names include

        `transactions-per-second`, `market-price`, `hash-rate`, `difficulty`, `miners-revenue`,

        `mempool-size`, `n-transactions`, `total-bitcoins`, `avg-block-size`, `mempool-count`,

        `cost-per-transaction`, and many others.

        '
      tags:
      - Charts
      servers:
      - url: https://api.blockchain.info
      parameters:
      - name: chartName
        in: path
        required: true
        description: Chart identifier (kebab-case).
        schema:
          type: string
          example: market-price
      - name: timespan
        in: query
        required: false
        description: Duration spanned by the dataset (e.g. `5weeks`, `1year`, `all`). Default `1year`.
        schema:
          type: string
          default: 1year
      - name: rollingAverage
        in: query
        required: false
        description: Smoothing window applied to the time series (e.g. `8hours`, `7days`).
        schema:
          type: string
      - name: start
        in: query
        required: false
        description: Custom start date in `YYYY-MM-DD` format.
        schema:
          type: string
          format: date
      - name: format
        in: query
        required: false
        description: Response format (`json` or `csv`). Default `json`.
        schema:
          type: string
          enum:
          - json
          - csv
          default: json
      - name: sampled
        in: query
        required: false
        description: If true, downsample to ~1.5k points for performance.
        schema:
          type: boolean
          default: false
      responses:
        '200':
          description: Chart time-series.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Chart'
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
components:
  schemas:
    ChartPoint:
      type: object
      description: Single time-series sample.
      properties:
        x:
          type: integer
          format: int64
          description: Timestamp in Unix seconds.
          example: 1
        y:
          type: number
          description: Measured value at `x`.
          example: 1.0
    Chart:
      type: object
      description: Time-series dataset returned by the Charts API.
      properties:
        status:
          type: string
          description: Response status (e.g. `ok`).
          example: ok
        name:
          type: string
          description: Chart name.
          example: Market Price (USD)
        unit:
          type: string
          description: Unit of measure for `y` values.
          example: USD
        period:
          type: string
          description: Sampling period (e.g. `day`).
        description:
          type: string
          description: Human-readable description of what the chart represents.
        values:
          type: array
          description: Time-series data points.
          items:
            $ref: '#/components/schemas/ChartPoint'