Odds API by market / MLS

MLS Goal or Assist API

Live goal_or_assist 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.

No credit card. 1,000 requests / day on the free tier.

What MLS goal or assist is

Will this player either score or set up a goal. Roughly doubles a forward's chance versus the anytime market, and it is the standard way to price a creative midfielder who rarely finishes.

How we settle it. Graded at a threshold of one against the player's goals plus assists for the match.

5
books quoting it on the next event
4/12
of the next MLS events carry it right now
6,981
outcomes settled in the last 21 days

Every number on this page is measured against the live API, never copied from a spec sheet. Last measured 6 October 2026.

Books posting MLS goal or assist

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.

DraftKingsFanaticsFanDuelParlayPlayReBet

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 goal or assist 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.

6,981 goal or assist outcomes settled in the last 21 days across 7 books. The 12 most recent:

BetActualResult
Albert Rusnák0.0lost
Alexander Roldan—void
1+ Goals+Assists0.0lost
2+ Goals+Assists0.0lost
1+ Goals+Assists0.0lost
Alex Roldan0.0lost
Antino Lopez—void
Caden Clark0.0lost
Yes0.0lost
Yes0.0lost
Yes0.0lost
1+ Goals+Assists0.0lost

Hit rate, last 21 days

16.1% of 4235 settled goal or assist legs hit (682 yes, 3553 no). 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 4,235 YES legs out of 6,981 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 Vancouver Whitecaps @ Chicago Fire, 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": "chicago",
  "away_team_key": "vancouver",
  "home_team_id": "espn.soccer:182",
  "away_team_id": "espn.soccer:9727",
  "home_team_logo_url": "https://a.espncdn.com/i/teamlogos/soccer/500/182.png",
  "away_team_logo_url": "https://a.espncdn.com/i/teamlogos/soccer/500/9727.png",
  "id": "90176",
  "sport_key": "soccer_mls",
  "home_team": "Chicago Fire",
  "away_team": "Vancouver Whitecaps",
  "commence_time": "2026-10-07T00:30:00Z",
  "live": false,
  "is_outright": false,
  "tournament": null,
  "tour": null,
  "last_update": "2026-10-06T16:12:44.628342Z",
  "merged_from_event_ids": null,
  "bookmakers": [
    {
      "key": "draftkings",
      "title": "DraftKings",
      "last_update": "2026-10-06T16:09:16.920037Z",
      "link": null,
      "app_link": null,
      "pregame_only": false,
      "book_event_id": null,
      "markets": [
        {
          "key": "goal_or_assist",
          "description": "Andrew Gutman to Score or Give Assist",
          "last_update": "2026-10-06T16:09:16.920037Z",
          "period": null,
          "suspended_at": null,
          "team": null,
          "line_type": "milestone",
          "outcomes": [
            {
              "name": "1+ Goals+Assists",
              "description": "Andrew Gutman",
              "price": 285,
              "point": null,
              "book_updated_at": null,
              "book_version": null,
              "payout_multiplier": null,
              "dfs_odds_type": null,
              "last_change_at": "2026-10-06T15:11:07.568451Z",
              "last_seen_at": "2026-10-06T16:09:16.920037Z",
              "liquidity": null,
              "liquidity_updated_at": null,
              "line_gap": null,
              "book_outcome_id": null,
              "outcome_id": null,
              "player_id": "espn:245068",
              "side": null
            },
            {
              "name": "2+ Goals+Assists",
              "description": "Andrew Gutman",
              "price": 2500,
              "point": null,
              "book_updated_at": null,
              "book_version": null,
              "payout_multiplier": null,
              "dfs_odds_type": null,
              "last_change_at": "2026-10-06T06:55:10.615105Z",
              "last_seen_at": "2026-10-06T16:09:16.920037Z",
              "liquidity": null,
              "liquidity_updated_at": null,
              "line_gap": null,
              "book_outcome_id": null,
              "outcome_id": null,
              "player_id": "espn:245068",
              "side": null
            }
          ]
        }
      ]
    }
  ]
}

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 goal or assist for one game across every book — this exact URL works right now:

curl "https://api.prop-line.com/v1/sports/soccer_mls/events/90176/odds?apiKey=YOUR_API_KEY&markets=goal_or_assist"

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

curl "https://api.prop-line.com/v1/sports/soccer_mls/events/90176/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.

Get your free MLS odds API key

1,000 requests / day. No credit card. The same key covers every sport and every market — not just this one.

Free tier includes 1,000 requests/day. Upgrade anytime.