polymarket.research

stable Standard

Research a topic across Polymarket: matching prediction-market events with volume, liquidity and dates.

GET /v1/polymarket/research

What you get#

A list of Polymarket results in Onekey's unified shape, in data (an array). An empty array is a normal, successful answer and is charged like any other; a source that reports "nothing found" as an error returns a free 404 not_found instead.

What it costs#

Standard · 1 credit for a fresh fetch, charged only when it succeeds.
Free when served from cache (0.2 credit for a cached response over 100 KB).
Free if the request is invalid (never charged) or the source fails or reports not found (refunded).

Parameters#

Name	Type	Required	Default	What it is	Constraints
`query`	string	yes	(required)	Research topic, free text (e.g. bitcoin halving)	max 200 chars; must match `[^\r\n]{1,200}`; trimmed, repeated spaces collapsed

Request#

curl "https://api.onekey.dev/v1/polymarket/research?query=bitcoin" \
  -H "x-api-key: YOUR_API_KEY"

Try it

Add your key to run this call right here. No key? Get one free. The key stays in this tab.

Recorded response#

A real Polymarket response, recorded and returned in Onekey's shape. Fields the platform does not provide are null.

json

{
  "success": true,
  "data": [
    {
      "entity": {
        "id": "1074544",
        "name": "Bitcoin above ___ on October 1?",
        "slug": "bitcoin-above-on-october-1-2026",
        "description": "This market will resolve to \"Yes\" if the Binance 1 minute candle for BTC/USDT 12:00 in the ET timezone (noon) on the date specified in the title has a final \"Close\" price higher than the price specifi"
      },
      "market": {
        "volume": 1673901.948019,
        "liquidity": null,
        "openInterest": 1069649.4128250002
      },
      "event": {
        "endDate": "2026-10-01T16:00:00Z",
        "startDate": "2026-09-24T16:00:14Z"
      },
      "media": {
        "thumbnailUrl": "https://polymarket-upload.s3.us-east-2.amazonaws.com/BTC+fullsize.png"
      },
      "engagement": {
        "comments": 0
      }
    },
    {
      "entity": {
        "id": "211888",
        "name": "Bitcoin above ___ on February 23?",
        "slug": "bitcoin-above-on-february-23",
        "description": "This market will resolve to \"Yes\" if the Binance 1 minute candle for BTC/USDT 12:00 in the ET timezone (noon) on the date specified in the title has a final \"Close\" price higher than the price specifi"
      },
      "market": {
        "volume": 5476990.364345,
        "liquidity": null,
        "openInterest": 0
      },
      "event": {
        "endDate": "2026-02-23T17:00:00Z",
        "startDate": "2026-02-16T17:05:32Z"
      },
      "media": {
        "thumbnailUrl": "https://polymarket-upload.s3.us-east-2.amazonaws.com/BTC+fullsize.png"
      },
      "engagement": {
        "comments": 0
      }
    }
  ],
  "metadata": {
    "platform": "polymarket",
    "endpoint": "research",
    "cached": false,
    "stale": false,
    "age_s": 0,
    "fetched_at": "2026-01-01T12:00:00+00:00",
    "credits_charged": 1,
    "request_id": "7f3a9c2e5b1d4c8fa2e6d0b9c4f18e37"
  },
  "error": null
}

Field mapping#

How this endpoint's source fields become Onekey's unified schema. Fields the source lacks come back as null.

Source path	Onekey field	Transform
`id`	`entity.id`	-
`title`	`entity.name`	-
`slug`	`entity.slug`	-
`description`	`entity.description`	-
`volume`	`market.volume`	`toNumber`
`liquidity`	`market.liquidity`	`toNumber`
`openInterest`	`market.openInterest`	`toNumber`
`endDate`	`event.endDate`	`toIsoDate`
`startDate`	`event.startDate`	`toIsoDate`
`image`	`media.thumbnailUrl`	`safeUrl`
`commentCount`	`engagement.comments`	`toNumber`

Caching and freshness#

Fresh for about 2 minutes. Repeat calls in that window are served from cache and are free.
Between 2 minutes and 15 minutes the cached copy is still served instantly and marked stale: true while Onekey refreshes it in the background.
If the source is down when a refresh is needed, the last copy can be served for up to 1 hour more (marked stale).
A "not found" is remembered for 1 minute and is free.
The cache is shared across all customers, which is what keeps repeat calls cheap.

What can go wrong#

Status	Code	What to do
401	`unauthorized`	Check the `x-api-key` header.
402	`insufficient_credits`	Add credits; your balance must cover the price.
404	`not_found`	Unknown endpoint path.
422	`invalid_params`	Fix the parameters using the table above. Free.
429	`rate_limited`	Wait `Retry-After` seconds, then retry.
502	`upstream_error`	The source failed. Refunded; retry with backoff.

See Errors for the full list and retry guidance.

Status: stable (verified against the live source).