Large Positions

List large positions

Returns the largest current open positions from graded traders, value-descending, with opaque cursor pagination. This is a change-detection feed, not a holder list: a row needs a current value of at least 50,000 USD and a live detection in the last 24 hours, so a wallet that holds a market without moving is not listed. For every graded holder of one market use GET /api/v1/market/{condition_id}/holders. Polymarket-only by design: the large-positions scanner filters platform = 'polymarket' (backend/crates/large-positions/src/scanner.rs), so only Polymarket rows are scanned and an unknown condition_id filter returns an empty list (never fabricated rows). The teaser cap that the internal product UI applies to anonymous viewers does not apply here: the API key already proves an active Pro subscription (wire tier insider), so authed API callers get full access.

get/api/v1/large-positions

Query parameters

limitinteger

Maximum number of large positions to return.

cursorstring

Opaque pagination cursor from a previous response.

min_sizenumber

Minimum position value in USD. Raises the feed's own floor of 50,000 USD; a smaller value does not lower it.

categorystring

One RFC 4180 CSV record of exact current provider-backed market_canonical.category values. Legacy unquoted lists such as NBA,WNBA remain valid; values containing commas, quotes, or newlines are CSV-quoted. Matching is case-insensitive. Malformed quoted input fails closed as one unknown exact category.

min_grade'S' | 'A' | 'B' | 'C' | 'D' | 'F'

Minimum trader grade.

condition_idstring

Scope to one market. Accepts the raw provider condition_id or the mkt_-prefixed market id (round-trips a value from a list response). Polymarket-only; an unknown id returns [].

Headers

X-Query-Validation'strict'

Opt into strict query-name validation. The default is compatible: unknown names are ignored and reported in X-Query-Ignored. With strict, an unknown name returns 400 bad_request with error.reason unknown_query_parameter before the handler runs, including when its percent escape is incomplete.

Response

Large positions list

object'list' required
has_moreboolean required
next_cursorstring

Opaque cursor for the next page; absent on the last page.

totalinteger

Total ranked rows when the read model exposes a count; may be absent.

Changes

Changed in 16 of the 89 revisions of this API.8184160

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    This revision also has 3 changes that name no endpoint, such as unreferenced schemas being removed. See the revision's changelog

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      response-property-enum-value-added

    • ●

      added the new subscription_inactive enum value to the / response property for the response status

      response-property-enum-value-added

    • ●

      added the new subscription_inactive enum value to the / response property for the response status

      response-property-enum-value-added

    • ●

      added the new subscription_inactive enum value to the / response property for the response status

      response-property-enum-value-added

    • ○

      removed the kalshi enum value from the // response property for the response status

      response-property-enum-value-removed

    This revision also has 2 changes that name no endpoint, such as unreferenced schemas being removed. See the revision's changelog