Contents

Market state of a venue

Latest market state of one venue: mark, oracle, funding (hourly and annualised), open interest, 24h volume, premium, max leverage.

GET/api/v1/marketsEvery key

Description

Largest open interest first. Licence review: raw rows of Binance and Bybit (single liquidations, prints, order books, tickers, funding and ratios per exchange, exchange candles) are not redistributed through the API while the review of their terms is pending. Asking for such a venue answers 403 source_restricted, and meta.restricted lists the withheld venues. Aggregates (sums over venues, our own figures) stay.

Who can call it

Available with every key and keyless (X-Blockmetric-Access: public). Keys of Free accounts get free-tier data (real-time feeds, 30 days of history, heatmap over time for every coin over the last 24 hours, liquidation levels now for every coin, the same as the free web plan); Pro and Desk keys the data of their plan; API Dev / API Pro raise the limits.

No key: 24 h
Free: 30 days
Pro: 365 days
Desk: 1095 days
API Dev: 365 days
API Pro: 1095 days

History window per plan. Limits: Authentication & limits.

Parameters

Parameters of /markets
Parameter	Description
`venue`string	hyperliquid \| lighter \| binance \| bybit (okx only while enabled, see /methodology#sources); default hyperliquid. Lighter (a DEX like Hyperliquid) is never withheld. Binance / Bybit: 403 source_restricted during the licence review.one of hyperliquid, lighter, binance, bybit, okx
`fields`string	Comma-separated fields of every item to return, e.g. coin,mark,fundingApr,openInterestUsd (case-insensitive). All other fields are left out, so large lists get much smaller; an unknown name answers 400 with the list of fields. Default: every field.
`format`string	json (default: the { data, meta } envelope) \| csv (the rows with a header line; nested values as JSON text) \| ndjson (one JSON object per row and line). csv and ndjson carry the meta block in headers: Link rel="next" and X-Blockmetric-Next-Cursor (next page), X-Blockmetric-Next-After (forward polling), X-Blockmetric-Updated-At, X-Blockmetric-Warnings, X-Blockmetric-License. Errors stay JSON.one of json, csv, ndjson · default json

Response fields

Every success is { data, meta }; these are the fields of data. meta is the same on every endpoint.

Response fields of /markets
Field	Description
`[].venue`"hyperliquid" \| "lighter" \| "binance" \| "bybit" \| "okx"	Trading venue.
`[].coin`string	Coin name as on Hyperliquid.
`[].mark`number · nullable	Mark price.
`[].oracle`number · nullable	Oracle / index price.
`[].fundingHourly`number · nullable	Hourly funding rate, fraction (0.0001 = 0.01 %/h).
`[].fundingApr`number · nullable	Annualised funding (hourly × 24 × 365), fraction.
`[].openInterestUsd`number · nullable	Open interest (USD).
`[].volume24hUsd`number · nullable	24h volume (USD).
`[].premium`number · nullable	Mark premium over the oracle, fraction.
`[].maxLeverage`integer · nullable	Maximum leverage.
`[].updatedAt`string (ISO 8601)	Newest data time of this item (ISO 8601 UTC).

Errors

400invalid_param Invalid parameter
401unauthorized Missing or invalid API key
403plan_required Plan does not include this
403scope_required Key not scoped for this API
403ip_not_allowed Address not on the IP allowlist of the key
403origin_not_allowed Key used from a browser origin it does not allow
403source_restricted Exchange data not redistributed
403https_required https required
429rate_limited Per-minute limit reachedretry
429daily_limit_exceeded Daily limit reachedretry
429stream_limit Too many open streamsretry
500internal_error Internal errorretry

Methodology

Premium / basis (how it is computed and its limits)
Open interest (how it is computed and its limits)
Funding rate (how it is computed and its limits)
Mark price (how it is computed and its limits)

Request

curl -s -H "X-Blockmetric-Access: public" \
  "https://api.blockmetric.io/v1/markets?venue=hyperliquid"

Example response

HTTP 200Real data from 2026-10-27 13:11 UTC

{
  "data": [
    {
      "venue": "hyperliquid",
      "coin": "BTC",
      "mark": 80213,
      "oracle": 80233.3,
      "fundingHourly": 0.0000125,
      "fundingApr": 0.1095,
      "openInterestUsd": 3468696429.07,
      "volume24hUsd": 2288160809.64,
      "premium": -0.0002031575,
      "maxLeverage": 40,
      "updatedAt": "2026-10-27T13:11:52.327Z"
    },
    {
      "venue": "hyperliquid",
      "coin": "ETH",
      "mark": 2329.29,
      "oracle": 2330.27,
      "fundingHourly": 0.0000125,
      "fundingApr": 0.1095,
      "openInterestUsd": 2602687934.92,
      "volume24hUsd": 852734460.37,
      "premium": -0.0004162608,
      "maxLeverage": 25,
      "updatedAt": "2026-10-27T13:11:52.327Z"
    }
  ],
  "meta": {
    "updatedAt": "2026-10-27T13:11:52.327Z",
    "source": "hyperliquid",
    "sources": [
      "hyperliquid"
    ],
    "plan": "api_dev",
    "delayMinutes": 0,
    "commercial": false,
    "license": {
      "id": "internal",
      "display": false,
      "attributionRequired": false,
      "attribution": null,
      "redistribution": false,
      "mauCap": null,
      "terms": "https://blockmetric.io/terms#api-license"
    },
    "attribution": {
      "text": "Data by Blockmetric · Source: Blockmetric Research",
      "url": "https://blockmetric.io/"
    },
    "access": {
      "historyDays": 365,
      "historyFrom": "2025-10-27T13:14:00.000Z"
    },
    "restricted": [
      "binance",
      "bybit"
    ]
  }
}

More options: open in the explorer · SDK method markets() / markets()

Code snippets in these docs are licensed under MIT-0: copy them into your own code without attribution. The SDKs, CLI and MCP server will be, once published, Apache-2.0; the name Blockmetric is not licensed (forks must be renamed). Data from the API is governed by the API terms; third-party exchange data by the exchange’s terms.