Yes. The Free tier is 600 requests a month at 100 requests a minute, across every endpoint in the catalog, with no credit card. Nothing about it expires.

What happens when I hit the quota?

Requests return 429 with the limit, what you have used, and which window you tripped — nothing is queued, and nothing is charged. The monthly quota resets on the 1st (UTC). There is no rollover: unused requests do not carry into the next month.

Do failed requests use up my quota?

A 5xx does not. If a source breaks on our side, the request is excluded from your monthly count. A 4xx does count — a wrong parameter is still a request we answered. Per-minute throttling counts everything, so a retry loop is still throttled.

Which tier do I need?

Start on Free. Every response carries the remaining quota in its headers, and the dashboard reads the same number enforcement uses, so you will see the ceiling coming rather than discovering it.

How is Zapi different from RapidAPI or Apify?

Zapi focuses on a consistent REST contract — one API key, one response format, one error pattern for every source. No need to learn per-provider quirks like on traditional marketplaces, and no need to set up scraping workflows like on Apify.

What about the legality of accessing public data?

Zapi only accesses data that is publicly available without a login. Responsibility for how it is ultimately used stays with the developer — make sure your use case complies with the original source's ToS and the regulations in your operating region.

Is there an official SDK?

One: zpi-sdk, for TypeScript and JavaScript. It carries a typed error hierarchy, retries only what is safe to retry, submits bulk jobs, and verifies webhook signatures. Everything else is plain REST — cURL or any HTTP client works.

Can I request a source that isn't in the catalog yet?

Yes, through the community Discord, on any tier.

Why are Pro and Ultra marked Soon?

Checkout is not open yet. The limits and features listed on those tiers are already built and enforced — what is pending is billing, not the product.

Blockchain Info

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

llms.txt

Chart

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

GET/v1/finance:blockchain-info/chart15m cache6 paramschecking key…

Parameters

chartenum

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.

timespanstring

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

startstring

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

rollingAveragestring

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

sampledenum

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

limitnumber

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

Response

EXAMPLE

{
  "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."
}

Code

Chart

index.ts

// npm i zpi-sdk
import { ZpiClient } from "zpi-sdk";

const client = new ZpiClient({ apiKey: "zpi_xxxxxxxxxxxxxxxxxxxxxxxx" });

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
});
console.log(data);

Recommended · typed errors, safe retries and bulk jobsSDK reference

Full reference

2 endpoints · plain text

GET

Chart/v1/finance:blockchain-info/chart

6 params

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

Parameters

chartenumoptional: 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. Values: mempool-size, mempool-count, mempool-growth, transactions-per-second, utxo-count, avg-confirmation-time, median-confirmation-time, market-price, market-cap, trade-volume, total-bitcoins, avg-block-size, blocks-size, n-transactions, n-transactions-total, n-transactions-per-block, n-transactions-excluding-popular, n-unique-addresses, hash-rate, difficulty, miners-revenue, transaction-fees, transaction-fees-usd, cost-per-transaction, cost-per-transaction-percent, output-volume, estimated-transaction-volume, estimated-transaction-volume-usd, my-wallet-n-users.
timespanstringoptional: Window as Ndays, Nweeks, Nyears, Nhours or all. Upstream default is 1 week for mempool charts, 1 year elsewhere.
startstringoptional: Start date (YYYY-MM-DD). Combine with timespan to window the series.
rollingAveragestringoptional: Average each point over this duration. Same grammar as timespan.
sampledenumoptional: true downsamples to ~1500 points. Default false, which returns full resolution. Values: true, false.
limitnumberoptional: Keep only the most recent N points. Omit for everything the upstream returned.

Request

curl -X GET "https://api.zapi.ink/v1/finance:blockchain-info/chart?chart=transactions-per-second&timespan=30days&start=2026-06-01&rollingAverage=8hours&sampled=false&limit=5000" \
  -H "x-api-key: zpi_xxxxxxxxxxxxxxxxxxxxxxxx"

Example response

{
  "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."
}

GET

Stats/v1/finance:blockchain-info/stats

0 params

Current Bitcoin network snapshot — 20 fields, one flat object, no list.

Parameters

This endpoint takes no parameters.

Request

curl -X GET "https://api.zapi.ink/v1/finance:blockchain-info/stats" \
  -H "x-api-key: zpi_xxxxxxxxxxxxxxxxxxxxxxxx"

Example response

{
  "date": "2026-08-21T02:22:44.000Z",
  "time": 1787278964,
  "dataset": "stats",
  "txCount": 534117,
  "btcMined": 41875000000,
  "hashRate": 849165771849.8738,
  "provider": "blockchain-info",
  "totalBtc": 2007305000000000,
  "blocksSize": 220380617,
  "difficulty": 127479855693691,
  "blocksMined": 134,
  "blocksTotal": 963376,
  "totalBtcSent": 123512756825852,
  "totalFeesBtc": -41875000000,
  "marketPriceUsd": 73774.99,
  "tradeVolumeBtc": 9765.02,
  "tradeVolumeUsd": 720414252.8498001,
  "estimatedBtcSent": 16173449886814,
  "minersRevenueBtc": 0,
  "minersRevenueUsd": 0,
  "nextRetargetHeight": 963647,
  "minutesBetweenBlocks": 10.1729,
  "estimatedTransactionVolumeUsd": 11931961036.652044
}

{ "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." }

// npm i zpi-sdk import { ZpiClient } from "zpi-sdk"; const client = new ZpiClient({ apiKey: "zpi_xxxxxxxxxxxxxxxxxxxxxxxx" }); 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 }); console.log(data);

curl -X GET "https://api.zapi.ink/v1/finance:blockchain-info/chart?chart=transactions-per-second&timespan=30days&start=2026-06-01&rollingAverage=8hours&sampled=false&limit=5000" \ -H "x-api-key: zpi_xxxxxxxxxxxxxxxxxxxxxxxx"

{ "date": "2026-08-21T02:22:44.000Z", "time": 1787278964, "dataset": "stats", "txCount": 534117, "btcMined": 41875000000, "hashRate": 849165771849.8738, "provider": "blockchain-info", "totalBtc": 2007305000000000, "blocksSize": 220380617, "difficulty": 127479855693691, "blocksMined": 134, "blocksTotal": 963376, "totalBtcSent": 123512756825852, "totalFeesBtc": -41875000000, "marketPriceUsd": 73774.99, "tradeVolumeBtc": 9765.02, "tradeVolumeUsd": 720414252.8498001, "estimatedBtcSent": 16173449886814, "minersRevenueBtc": 0, "minersRevenueUsd": 0, "nextRetargetHeight": 963647, "minutesBetweenBlocks": 10.1729, "estimatedTransactionVolumeUsd": 11931961036.652044 }

Blockchain Info

Chart

Code

Full reference

Parameters

Request

Example response

Parameters

Request

Example response

Pluang

IDX (Bursa Efek Indonesia)

TradingView

Stockbit

Investing

Binance Futures

Blockchain Info

Chart

Code

Full reference

Parameters

Request

Example response

Parameters

Request

Example response

Pluang

IDX (Bursa Efek Indonesia)

TradingView

Stockbit

Investing

Binance Futures

Chart

Code

Full reference

Parameters

Request

Example response

Parameters

Request

Example response

Related APIs

Pluang

IDX (Bursa Efek Indonesia)

TradingView

Stockbit

Investing

Binance Futures

Chart

Code

Full reference

Parameters

Request

Example response

Parameters

Request

Example response

Related APIs

Pluang

IDX (Bursa Efek Indonesia)

TradingView

Stockbit

Investing

Binance Futures