Yes. The Free tier is 600 requests a month at 100 requests a minute, across every endpoint in the catalogue, 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 catalogue yet?

Yes, through the community Discord, on any tier.

Deribit

Deribit public data, including DVOL — the crypto volatility index — at one-second resolution, plus options instruments and index prices.

10 endpoints669 calls10/10 passing

Get API key

Book Summary

Top of book, open interest and 24h volume for every Deribit instrument in one

GET/v1/finance:deribit/book-summary

passing · 0.3s15s cache

Parameters

Name	Type	In	Description
currency	enum	query	Settlement currency. Default BTC. One of BTC, ETH, USDC, USDT, EURR.
kind	enum	query	Instrument kind. Omit for every kind. One of future, option, spot, future_combo, option_combo.

Example response

{"project":"finance:deribit",  "data": {"kind":"future","count":13,    "items": [      {"date":"2026-08-20T14:59:36.039Z","time":1787237976039,"low24h":66152.5,"markIv":null,"symbol":"BTC-30OCT26","volume":79.60912343,"high24h":72970,"askPrice":72350,"bidPrice":72327.5,"midPrice":72338.75,"lastPrice":72238.5,"markPrice":72348.81,"volumeUsd":5595640,"baseCurrency":"BTC","openInterest":8088840,"quoteCurrency":"USD","volumeNotional":5595640,"underlyingPrice":null,"priceChangePct24h":8.6579,"estimatedDeliveryPrice":71740.86      },      {"date":"2026-08-20T14:59:36.039Z","time":1787237976039,"low24h":68405,"markIv":null,"symbol":"BTC-25JUN27","volume":84.9230532,"high24h":75140,"askPrice":74415,"bidPrice":74355,"midPrice":74385,"lastPrice":74115,"markPrice":74392.24,"volumeUsd":6136400,"baseCurrency":"BTC","openInterest":10423000,"quoteCurrency":"USD","volumeNotional":6136400,"underlyingPrice":null,"priceChangePct24h":8.2484,"estimatedDeliveryPrice":71740.86      },      {"date":"2026-08-20T14:59:36.039Z","time":1787237976039,"low24h":65955,"markIv":null,"symbol":"BTC-23AUG26","volume":130.46758673,"high24h":72395,"askPrice":71740,"bidPrice":71715,"midPrice":71727.5,"lastPrice":71727.5,"markPrice":71737.15,"volumeUsd":9080690,"baseCurrency":"BTC","openInterest":8264000,"quoteCurrency":"USD","volumeNotional":9080690,"underlyingPrice":null,"priceChangePct24h":8.7522,"estimatedDeliveryPrice":71740.86      }    ],"dataset":"book-summary","currency":"BTC","provider":"deribit"  },"timestamp":"2026-08-20T14:59:35Z"}

Errors

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

Funding Rate History

Hourly funding for one Deribit perpetual, with the index it was struck on.

GET/v1/finance:deribit/funding-rate-history

passing · 0.7s1m cache

Parameters

Name	Type	In	Description
symbol	string	query	Perpetual instrument name.
start	string	query	Oldest hour to include. Epoch ms/s or ISO date. Defaults to seven days back.
end	string	query	Newest hour to include. Epoch ms/s or ISO date. Defaults to now.

Example response

{"project":"finance:deribit",  "data": {"count":168,    "items": [      {"date":"2026-08-13T01:00:00.000Z","time":1786582800000,"indexPrice":63495.11,"interest1h":0.000007511698674394949,"interest8h":0.00004911071730031578,"previousIndexPrice":63413.47      },      {"date":"2026-08-13T02:00:00.000Z","time":1786586400000,"indexPrice":63391.67,"interest1h":0.0000030121484716520185,"interest8h":0.00004117415585266742,"previousIndexPrice":63495.11      },      {"date":"2026-08-13T03:00:00.000Z","time":1786590000000,"indexPrice":63483.87,"interest1h":0.0000015973149776453194,"interest8h":0.00003248514867255686,"previousIndexPrice":63391.67      },      {"date":"2026-08-13T04:00:00.000Z","time":1786593600000,"indexPrice":63584,"interest1h":0.0000024490050545234122,"interest8h":0.000030038661823743066,"previousIndexPrice":63483.87      },      {"date":"2026-08-13T05:00:00.000Z","time":1786597200000,"indexPrice":63628.5,"interest1h":0.0000049281227417091035,"interest8h":0.00003133237488612422,"previousIndexPrice":63584      },      {"date":"2026-08-13T06:00:00.000Z","time":1786600800000,"indexPrice":63813.23,"interest1h":0.0000024846883603425967,"interest8h":0.00003232543799943846,"previousIndexPrice":63628.5      }    ],"symbol":"BTC-PERPETUAL","dataset":"funding-rate-history","provider":"deribit"  },"timestamp":"2026-08-20T14:59:35Z"}

Errors

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

Historical Volatility

Realised volatility for one Deribit currency — the backward-looking twin of

GET/v1/finance:deribit/historical-volatility

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Parameters

Name	Type	In	Description
currency	enum	query	Index currency. Default BTC. One of BTC, ETH, USDC, USDT, EURR.

Example response

{"project":"finance:deribit",  "data": {"count":384,    "items": [      {"date":"2026-08-04T17:00:00.000Z","time":1785862800000,"volatility":28.69387387574387      },      {"date":"2026-08-04T17:00:00.000Z","time":1785862800000,"volatility":28.69387387574387      },      {"date":"2026-08-04T18:00:00.000Z","time":1785866400000,"volatility":28.71583025957184      },      {"date":"2026-08-04T19:00:00.000Z","time":1785870000000,"volatility":28.70983568463423      },      {"date":"2026-08-04T20:00:00.000Z","time":1785873600000,"volatility":28.71183839968203      },      {"date":"2026-08-04T21:00:00.000Z","time":1785877200000,"volatility":28.70813156705442      }    ],"dataset":"historical-volatility","currency":"BTC","provider":"deribit"  },"timestamp":"2026-08-20T14:59:35Z"}

Errors

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

Index Price Names

Every index name Deribit publishes — the input vocabulary for index-price.

GET/v1/finance:deribit/index-price-names

passing · 0.3s1h cache

Parameters

Name	Type	In	Description
query	string	query	Filter the names by substring.

Example response

{"project":"finance:deribit",  "data": {"count":10,    "items": [      "btc_usd",      "btc_usdc",      "btc_usdt",      "drbfix-btc_usdc",      "eth_btc",      "btc_eurr"    ],"query":"btc","total":344,"dataset":"index-price-names","provider":"deribit"  },"timestamp":"2026-08-20T14:59:35Z"}

Errors

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

Index Price

The spot index Deribit settles one contract family against.

GET/v1/finance:deribit/index-price

passing · 0.3s5s cache

Parameters

Name	Type	In	Description
indexName	string	query	Index name. The full list is the index-price-names endpoint.

Example response

{"project":"finance:deribit",  "data": {"dataset":"index-price","provider":"deribit","indexName":"btc_usd","indexPrice":71770.14,"estimatedDeliveryPrice":71770.14  },"timestamp":"2026-08-20T14:59:35Z"}

Errors

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

Instruments

Contract specifications for one Deribit currency — futures, options or spot.

GET/v1/finance:deribit/instruments

passing · 0.3s10m cache

Parameters

Name	Type	In	Description
currency	enum	query	Settlement currency, or any for every one. Default BTC. One of BTC, ETH, USDC, USDT, EURR, any.
kind	enum	query	Instrument kind. Omit for every kind. One of future, option, spot, future_combo, option_combo.
expired	enum	query	Return expired instruments instead of live ones. Default false. One of true, false.

Example response

{"project":"finance:deribit",  "data": {"kind":"future","count":13,    "items": [      {"kind":"future","state":"open","symbol":"BTC-PERPETUAL","tickSize":0.5,"expiryDate":"3000-01-01T08:00:00.000Z","expiryTime":32503708800000,"futureType":"reversed","priceIndex":"btc_usd","maxLeverage":50,"baseCurrency":"BTC","contractSize":10,"creationDate":"2018-08-14T10:24:47.000Z","creationTime":1534242287000,"quoteCurrency":"USD","instrumentType":"reversed","minTradeAmount":10,"counterCurrency":"USD","makerCommission":0.00015,"takerCommission":0.00035,"settlementPeriod":"perpetual","settlementCurrency":"BTC","blockTradeMinAmount":200000,"blockTradeCommission":0.00025      },      {"kind":"future","state":"open","symbol":"BTC-21AUG26","tickSize":2.5,"expiryDate":"2026-08-21T08:00:00.000Z","expiryTime":1787299200000,"futureType":"reversed","priceIndex":"btc_usd","maxLeverage":25,"baseCurrency":"BTC","contractSize":10,"creationDate":"2026-07-30T08:00:13.000Z","creationTime":1785398413000,"quoteCurrency":"USD","instrumentType":"reversed","minTradeAmount":10,"counterCurrency":"USD","makerCommission":0.00015,"takerCommission":0.00035,"settlementPeriod":"week","settlementCurrency":"BTC","blockTradeMinAmount":200000,"blockTradeCommission":0.00025      }    ],"dataset":"instruments","expired":false,"currency":"BTC","provider":"deribit"  },"timestamp":"2026-08-20T14:59:35Z"}

Errors

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

Order Book

Depth for one Deribit instrument, plus the funding, open interest, mark and

GET/v1/finance:deribit/order-book

passing · 0.3sno cache

Parameters

Name	Type	In	Description
symbol	string	query	Instrument name, Deribit's own form.
depth	enum	query	Levels per side. Default 10. One of 1, 5, 10, 20, 50, 100, 1000, 10000.

Example response

{"project":"finance:deribit",  "data": {    "asks": [      {"size":7800,"price":72195      },      {"size":6000,"price":72195.5      },      {"size":1790,"price":72197      },      {"size":30580,"price":72198      },      {"size":42600,"price":72198.5      },      {"size":6000,"price":72199      }    ],    "bids": [      {"size":17160,"price":72194.5      },      {"size":10000,"price":72194      },      {"size":6000,"price":72192      },      {"size":350,"price":72190      },      {"size":580,"price":72188      },      {"size":1500,"price":72184.5      }    ],"date":"2026-08-20T15:15:34.793Z","time":1787238934793,"state":"open","low24h":66546,"symbol":"BTC-PERPETUAL","dataset":"order-book","high24h":72511.5,"askCount":10,"bidCount":10,"changeId":170552772179,"maxPrice":73273.5,"minPrice":71107,"provider":"deribit","funding8h":0.00000879,"lastPrice":72187,"markPrice":72190.31,"volume24h":17388.78581996,"indexPrice":72188.68,"bestAskPrice":72195,"bestBidPrice":72194.5,"openInterest":822593720,"volumeUsd24h":1213453520,"bestAskAmount":7800,"bestBidAmount":17160,"interestValue":0.0011166989872886256,"currentFunding":0,"settlementPrice":69806.07,"priceChangePct24h":8.3637,"volumeNotional24h":1213453520,"estimatedDeliveryPrice":72188.68  },"timestamp":"2026-08-20T14:59:35Z"}

Errors

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

Ticker

Everything Deribit publishes about one instrument in a single call.

GET/v1/finance:deribit/ticker

passing · 0.3s5s cache

Parameters

Name	Type	In	Description
symbol	string	query	Instrument name, Deribit's own form.

Example response

{"project":"finance:deribit",  "data": {"date":"2026-08-20T15:00:24.798Z","time":1787238024798,"state":"open","low24h":65862.5,"symbol":"BTC-PERPETUAL","dataset":"ticker","high24h":72429,"maxPrice":72846,"minPrice":70692.5,"provider":"deribit","funding8h":0.00001004,"lastPrice":71755,"markPrice":71769.38,"volume24h":17682.42559782,"indexPrice":71765.41,"bestAskPrice":71755,"bestBidPrice":71754.5,"openInterest":822916570,"volumeUsd24h":1230962300,"bestAskAmount":361770,"bestBidAmount":255060,"interestValue":0.0011131102258984174,"currentFunding":0,"settlementPrice":69806.07,"priceChangePct24h":8.8838,"volumeNotional24h":1230962300,"estimatedDeliveryPrice":71765.41  },"timestamp":"2026-08-20T14:59:35Z"}

Errors

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

Trades

Recent public prints for one Deribit instrument.

GET/v1/finance:deribit/trades

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Parameters

Name	Type	In	Description
symbol	string	query	Instrument name, Deribit's own form.
count	number	query	Prints to return. Default 100, max 1000.
sorting	enum	query	Order the exchange applies before the cap. Default desc. One of asc, desc, default.

Example response

{"project":"finance:deribit",  "data": {"count":100,    "items": [      {"iv":null,"date":"2026-08-20T15:00:32.548Z","time":1787238032548,"price":71769,"amount":330,"symbol":"BTC-PERPETUAL","tradeId":"440863223","contracts":33,"direction":"buy","markPrice":71771,"indexPrice":71767.71,"tickDirection":1,"tradeSequence":296610088      },      {"iv":null,"date":"2026-08-20T15:00:30.853Z","time":1787238030853,"price":71769,"amount":1280,"symbol":"BTC-PERPETUAL","tradeId":"440863222","contracts":128,"direction":"buy","markPrice":71767.66,"indexPrice":71764.35,"tickDirection":0,"tradeSequence":296610087      },      {"iv":null,"date":"2026-08-20T15:00:30.099Z","time":1787238030099,"price":71768.5,"amount":1000,"symbol":"BTC-PERPETUAL","tradeId":"440863220","contracts":100,"direction":"sell","markPrice":71767.98,"indexPrice":71764.69,"tickDirection":3,"tradeSequence":296610086      }    ],"symbol":"BTC-PERPETUAL","dataset":"trades","hasMore":true,"sorting":"desc","provider":"deribit"  },"timestamp":"2026-08-20T14:59:35Z"}

Errors

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

Volatility Index

DVOL — Deribit's implied-volatility index, crypto's VIX — as OHLC candles.

GET/v1/finance:deribit/volatility-index

passing · 0.3s30s cache

Parameters

Name	Type	In	Description
currency	enum	query	Index currency. BTC and ETH carry the deep history. Default BTC. One of BTC, ETH, USDC, USDT, EURR.
resolution	enum	query	Bar size in seconds, or 1D for a day. Default 60. One of 1, 60, 3600, 43200, 1D.
start	string	query	Oldest bar to include. Epoch ms/s or ISO date.
end	string	query	Newest bar to include. Epoch ms/s or ISO date.
page	number	query	Page number, walking backwards in time. Default 1, max 20.

Example response

{"project":"finance:deribit",  "data": {"page":1,"count":1000,    "items": [      {"low":34.68,"date":"2026-08-19T07:21:00.000Z","high":34.68,"open":34.68,"close":34.68,"openTime":1787124060000,"closeTime":1787124119999      },      {"low":34.68,"date":"2026-08-19T07:22:00.000Z","high":34.69,"open":34.68,"close":34.69,"openTime":1787124120000,"closeTime":1787124179999      },      {"low":34.69,"date":"2026-08-19T07:23:00.000Z","high":34.7,"open":34.69,"close":34.7,"openTime":1787124180000,"closeTime":1787124239999      },      {"low":34.7,"date":"2026-08-19T07:24:00.000Z","high":34.7,"open":34.7,"close":34.7,"openTime":1787124240000,"closeTime":1787124299999      },      {"low":34.7,"date":"2026-08-19T07:25:00.000Z","high":34.73,"open":34.7,"close":34.73,"openTime":1787124300000,"closeTime":1787124359999      },      {"low":34.72,"date":"2026-08-19T07:26:00.000Z","high":34.72,"open":34.72,"close":34.72,"openTime":1787124360000,"closeTime":1787124419999      }    ],"dataset":"volatility-index","hasMore":true,"currency":"BTC","nextPage":2,"provider":"deribit","resolution":"60"  },"timestamp":"2026-08-20T14:59:35Z"}

Errors

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

Try it

Live request with your key

const data = await client.run(  "finance:deribit",  "book-summary",  { currency: "BTC", kind: "future" });

Deribit

Deribit public data, including DVOL — the crypto volatility index — at one-second resolution, plus options instruments and index prices.

10 endpoints669 calls10/10 passing

Get API key

Top of book, open interest and 24h volume for every Deribit instrument in one

GET/v1/…deribit/book-summary

passing · 0.3s15s cache

Try it

Parameters

currency

enum · query · optional

Settlement currency. Default BTC.

kind

enum · query · optional

Instrument kind. Omit for every kind.

Example response

{"project":"finance:deribit",  "data": {"kind":"future","count":13,    "items": [      {"date":"2026-08-20T14:59:36.039Z","time":1787237976039,"low24h":66152.5,"markIv":null,"symbol":"BTC-30OCT26","volume":79.60912343,"high24h":72970,"askPrice":72350,"bidPrice":72327.5,"midPrice":72338.75,"lastPrice":72238.5,"markPrice":72348.81,"volumeUsd":5595640,"baseCurrency":"BTC","openInterest":8088840,"quoteCurrency":"USD","volumeNotional":5595640,"underlyingPrice":null,"priceChangePct24h":8.6579,"estimatedDeliveryPrice":71740.86      },      {"date":"2026-08-20T14:59:36.039Z","time":1787237976039,"low24h":68405,"markIv":null,"symbol":"BTC-25JUN27","volume":84.9230532,"high24h":75140,"askPrice":74415,"bidPrice":74355,"midPrice":74385,"lastPrice":74115,"markPrice":74392.24,"volumeUsd":6136400,"baseCurrency":"BTC","openInterest":10423000,"quoteCurrency":"USD","volumeNotional":6136400,"underlyingPrice":null,"priceChangePct24h":8.2484,"estimatedDeliveryPrice":71740.86      },      {"date":"2026-08-20T14:59:36.039Z","time":1787237976039,"low24h":65955,"markIv":null,"symbol":"BTC-23AUG26","volume":130.46758673,"high24h":72395,"askPrice":71740,"bidPrice":71715,"midPrice":71727.5,"lastPrice":71727.5,"markPrice":71737.15,"volumeUsd":9080690,"baseCurrency":"BTC","openInterest":8264000,"quoteCurrency":"USD","volumeNotional":9080690,"underlyingPrice":null,"priceChangePct24h":8.7522,"estimatedDeliveryPrice":71740.86      }    ],"dataset":"book-summary","currency":"BTC","provider":"deribit"  },"timestamp":"2026-08-20T14:59:35Z"}

Errors

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

Code

const data = await client.run(  "finance:deribit",  "book-summary",  { currency: "BTC", kind: "future" });