Blockchain Info

One named on-chain time series from blockchain.info's chart API.

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GET/v1/…blockchain-info/chart
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Parameters

chart

enum · query · optional

Chart name. mempool-size, mempool-count, mempool-growth and transactions-per-second publish every 15 minutes; utxo-count hourly; avg-confirmation-time every 6 hours; the rest daily.

timespan

string · query · optional

Window as Ndays, Nweeks, Nyears, Nhours or all. Upstream default is 1 week for mempool charts, 1 year elsewhere.

start

string · query · optional

Start date (YYYY-MM-DD). Combine with timespan to window the series.

rollingAverage

string · query · optional

Average each point over this duration. Same grammar as timespan.

sampled

enum · query · optional

true downsamples to ~1500 points. Default false, which returns full resolution.

limit

number · query · optional

Keep only the most recent N points. Omit for everything the upstream returned.

Example response

{"project":"finance:blockchain-info",  "data": {"unit":"Transactions Per Second","chart":"transactions-per-second","count":668,    "items": [      {"date":"2026-08-14T02:30:00.000Z","time":1786674600,"value":4.45      },      {"date":"2026-08-14T02:45:00.000Z","time":1786675500,"value":3.066666666666667      },      {"date":"2026-08-14T03:00:00.000Z","time":1786676400,"value":4.733333333333333      },      {"date":"2026-08-14T03:15:00.000Z","time":1786677300,"value":2.2333333333333334      },      {"date":"2026-08-14T03:30:00.000Z","time":1786678200,"value":3.7666666666666666      },      {"date":"2026-08-14T03:45:00.000Z","time":1786679100,"value":6.033333333333333      },      {"date":"2026-08-14T04:00:00.000Z","time":1786680000,"value":5.416666666666667      },      {"date":"2026-08-14T04:15:00.000Z","time":1786680900,"value":23.6      }    ],"total":668,"period":"minute","dataset":"chart","sampled":false,"provider":"blockchain-info","timespan":null,"description":"The number of Bitcoin transactions added to the mempool per second."  },"timestamp":"2026-08-21T02:24:06Z"}

Errors

  • 401Missing or invalid x-api-key
  • 404Not found or private
  • 429Rate limit or monthly quota reached

Code

const data = await client.run(  "finance:blockchain-info",  "chart",  { chart: "transactions-per-second", timespan: "30days", start: "2026-06-01", rollingAverage: "8hours", sampled: "false", limit: 5000 });