Odds API by market / MLS

MLS Player Assists API

Live player_assists odds across every book that posts it, in one REST call — and, unlike any other odds API, every one of those outcomes settled against the official result once play ends.

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What MLS player assists is

Assists by one player, priced as milestone rungs (1+, 2+) rather than as an Over/Under. Books disagree about what counts as an assist more than they disagree about goals, so cross-book comparison matters here.

How we settle it. Graded at the rung's threshold against assists in the match's player statistics.

books quoting it on the next event

12/12

of the next MLS events carry it right now

2,044

outcomes settled in the last 4 days

Every number on this page is measured against the live API, never copied from a spec sheet. Last measured 8 September 2026.

Books posting MLS player assists

Measured live, not listed from a spec. Coverage moves — a book that has not put its board up yet will not appear until it does, which is exactly what this list is for.

DraftKingsPrizePicksReBet

Line shopping across all of them is one request — every book arrives in the same bookmakers array, not one call per book. Add ?bookmakers= to narrow it, or use /best-line for the best price per line already ranked.

Recently settled MLS player assists outcomes

These are real rows out of the API, not an illustration. Each one was a price on a board before the event and carries the actual figure it was graded against afterwards. No other odds API returns that last column — they stop at the price.

2,044 player assists outcomes settled in the last 4 days across 4 books. The 12 most recent:

Player	Game	Book	Bet	Price	Actual	Result
Alex Bonetig	Minnesota United FC @ Portland Timbers	draftkings	1+ Assists	2500	—	void
Anthony Alves Santos	Minnesota United FC @ Portland Timbers	draftkings	1+ Assists	350	—	void
Anthony Alves Santos	Minnesota United FC @ Portland Timbers	draftkings	2+ Assists	3000	—	void
—	Minnesota United FC @ Portland Timbers	rebet	Alex Bonetig	1025	—	void
—	Minnesota United FC @ Portland Timbers	rebet	Anthony Markanich	560	0.0	lost
Alex Bonetig	Minnesota United FC @ Portland Timbers	prizepicks	Over 0.5	100	—	void
Anthony Markanich	Minnesota United FC @ Portland Timbers	prizepicks	Over 0.5	100	0.0	lost
Antony	Minnesota United FC @ Portland Timbers	prizepicks	Over 0.5	100	1.0	won
Adrian Simon Gill	Atlanta United FC @ Inter Miami CF	onexbet	1+ Assists	1200	—	void
Aleksei Miranchuk	Atlanta United FC @ Inter Miami CF	onexbet	1+ Assists	450	—	void
Breel Embolo	Atlanta United FC @ Inter Miami CF	onexbet	1+ Assists	500	0.0	lost
Anthony Markanich	Minnesota United FC @ Portland Timbers	draftkings	1+ Assists	600	0.0	lost

Hit rate, last 4 days

6.7% of 990 settled player assists legs hit (66 yes, 924no). Counted on the YES side only — books that price this two-way contribute their Over leg, not both. That is the base rate across the whole priced field, not a per-player figure.

Read off 990 YES legs out of 2,044 settled outcomes on this market. The rest are the Under side from books that price it two-way, which answers a different question.

Per-player hit rates and L5 / L10 / L20 splits live on /trends.

Live response

Captured from the real endpoint on Orlando City SC @ Atlanta United FC, trimmed to one book and three outcomes so the shape stays readable. The full response carries every book and every line, alternates included, in the same call.

{
  "home_team_key": "atlanta_utd",
  "away_team_key": "orlando",
  "home_team_id": "espn.soccer:18418",
  "away_team_id": "espn.soccer:12011",
  "id": "186905",
  "sport_key": "soccer_mls",
  "home_team": "Atlanta United FC",
  "away_team": "Orlando City SC",
  "commence_time": "2026-09-09T23:30:00Z",
  "live": false,
  "last_update": "2026-09-08T13:36:01.881759Z",
  "merged_from_event_ids": null,
  "bookmakers": [
    {
      "key": "draftkings",
      "title": "DraftKings",
      "last_update": "2026-09-08T13:24:30.205375Z",
      "link": null,
      "app_link": null,
      "pregame_only": false,
      "book_event_id": null,
      "markets": [
        {
          "key": "player_assists",
          "description": "Adrian Gill Assists",
          "last_update": "2026-09-08T13:24:30.205375Z",
          "period": null,
          "suspended_at": null,
          "team": null,
          "outcomes": [
            {
              "name": "1+ Assists",
              "description": "Adrian Gill",
              "price": 800,
              "point": null,
              "book_updated_at": null,
              "book_version": null,
              "payout_multiplier": null,
              "dfs_odds_type": null,
              "last_change_at": "2026-09-07T16:40:28.981884Z",
              "last_seen_at": "2026-09-08T13:24:30.205375Z",
              "liquidity": null,
              "liquidity_updated_at": null,
              "line_gap": null,
              "book_outcome_id": null,
              "outcome_id": null,
              "player_id": "espn:371431"
            }
          ]
        }
      ]
    }
  ]
}

The response shape is the-odds-api compatible — events, bookmakers, markets, outcomes — so migrating is usually a base URL change.

Try it

1. List MLS events to get an event id:

curl "https://api.prop-line.com/v1/sports/soccer_mls/events?apiKey=YOUR_API_KEY"

2. Pull player assists for one game across every book — this exact URL works right now:

curl "https://api.prop-line.com/v1/sports/soccer_mls/events/186905/odds?apiKey=YOUR_API_KEY&markets=player_assists"

3. After the game, get the graded outcomes with the actual stat:

curl "https://api.prop-line.com/v1/sports/soccer_mls/events/186905/results?apiKey=YOUR_API_KEY"

Steps 1 and 2 run on the free tier. Step 3 — prop resolution — starts on Hobby at $9/mo. See pricing.

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