What a match used to say, and when it stopped saying it
The changes made to a match's own fields, newest first, each with the value before and after.
The changes made to a match's own fields, newest first, each with the value before and after. Everywhere else reports THAT a match moved — ?changed_since= on the match list and the WebSocket changed field — because every other record is updated in place; this is the only surface that retains the prior value, which is what lets you reconcile a stored copy rather than overwrite it.
Only the match's own observable fields are tracked: status, score_a, score_b, winner_team_id, scheduled_at, started_at, ended_at, stage, format, result_type, team_a_id, team_b_id, tournament_id. An entry whose changed is ["data_available"] and whose changes is {} is an ARRIVAL, not a change — a sub-resource (maps, stats, rounds, depth, lineups) landed for the first time and the match's own fields did not move.
was_completed marks whether the match was ALREADY completed when it moved, which is the line between a correction to something we published as final and ordinary lifecycle progress.
History begins when this endpoint shipped and cannot be backfilled — earlier values were overwritten in place. Entries are retained for 180 days. A match with no recorded changes yields an empty list, as does an unknown id. Not cursor-paginated (next_cursor is null); page backwards with before. Ids inside changes are as recorded at the time and are never rewritten by a later merge, so one may no longer resolve.
The primary way to authenticate: Authorization: Bearer <api-key>. When a request also carries ?apiKey=, the header wins. We store only a SHA-256 hash of a key, never the key itself.
In: header
Path Parameters
Game slug. cs2 is the only populated title today; an un-onboarded game 404s cleanly.
Resource identifier — either a UUID or the resource's human-readable slug, scoped to {game}. /v1/cs2/teams/natus-vincere and /v1/cs2/teams/019f23d1-fb5c-7987-b522-47c3a5e72111 address the same row, so you can go straight from a slug you already have without first looking up its id.
Slugs work on teams, players and tournaments. Matches have no slug, so a match id must be a UUID. Either way, an identifier that resolves to nothing returns 404 not_found.
A team or a player also answers to a slug it was renamed away from, as long as no current team or player holds that slug — so a link made before a rename keeps working. The row returned carries its current slug.
Query Parameters
Maximum entries to return. Default 50, maximum 200.
1 <= value <= 20050RFC 3339 timestamp. Returns only entries strictly EARLIER than this instant. Exclusive, so passing the changed_at of the last entry you received returns the next page with no overlap and no gap. A malformed value is a 400.
date-timeResponse Body
application/json
application/json
application/json
application/json
application/json
application/json
curl -X GET "https://example.com/v1/cs2/matches/019f2858-e253-7f3d-bdff-bc7738bd1036/history"{ "data": [ { "changed_at": "2026-09-21T19:42:07.318402Z", "changed": [ "data_available" ], "changes": {}, "was_completed": true }, { "changed_at": "2026-09-21T11:08:44.901233Z", "changed": [ "score_b", "winner_team_id" ], "changes": { "score_b": { "from": 1, "to": 0 }, "winner_team_id": { "from": "019f2858-e255-78e4-9e7c-32f307dfac91", "to": "01a0916e-90e4-7469-903a-463c4fc69c4b" } }, "was_completed": true }, { "changed_at": "2026-09-20T21:15:02.447810Z", "changed": [ "status", "score_a", "ended_at" ], "changes": { "status": { "from": "live", "to": "completed" }, "score_a": { "from": 1, "to": 2 }, "ended_at": { "from": null, "to": "2026-09-20T21:14:58Z" } }, "was_completed": false } ], "meta": { "count": 3, "next_cursor": null }}{ "error": { "code": "match_merged", "message": "this match id was merged into 01a0d06b-4e06-7e01-905d-7384ae3c7ce1; use that id", "request_id": "01a12d10-6b2e-7d3a-9a4f-2c1d0e9b8a77" }}{ "error": { "code": "not_found", "message": "not found", "request_id": "019f3d18-c15f-7319-81a7-343e8a80a578" }}{ "error": { "code": "not_found", "message": "not found", "request_id": "019f3d18-c15f-7319-81a7-343e8a80a578" }}{ "error": { "code": "not_found", "message": "not found", "request_id": "019f3d18-c15f-7319-81a7-343e8a80a578" }}{ "error": { "code": "rate_limited", "message": "rate limit exceeded", "request_id": "019f3d18-c15f-7319-81a7-343e8a80a578" }}A single match GET
One match by id, with the same fields as a list row minus the denormalised names — a detail row carries bare team_a_id/team_b_id/tournament_id, so resolve those separately or read them off the list…
Pre-match roster snapshots for a match GET
Each team's listed roster as it stood in the 48 hours before the match, oldest snapshot first within each team.