PropLine — Sports Odds & Graded Props

Live sports betting odds across 21 books (DraftKings, FanDuel, Pinnacle, BetMGM, Kalshi, Polymarket, PrizePicks, Underdog and more) for MLB, NBA, WNBA, NHL…

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What it can do

Propline List Sports: List all sports PropLine currently polls. Returns sport keys (e.g. baseball_mlb, basketball_nba, soccer_epl) along with human titles and active status. Use this first to discover
Propline List Events: List upcoming events for a sport. Returns each event's id, home_team, away_team, commence_time. Use the returned event_id to drill into per-event odds, props, +EV, or results.
Propline List Event Markets: List the market types available for a specific event (e.g. h2h, spreads, totals, player_points, pitcher_strikeouts). Useful when you don't know which prop markets a given

What data it sees

Do you need an account

No: the server works without sign-in

Live sports betting odds across 21 books (DraftKings, FanDuel, Pinnacle, BetMGM, Kalshi, Polymarket, PrizePicks, Underdog and more) for MLB, NBA, WNBA, NHL, NFL, NCAAF, soccer, tennis, UFC and 40+ more sports. Every player prop is graded against the real box score, so answers can be verified: hit rates, player trends, resolved results, cross-book +EV with no-vig fair lines, best line, opening/closing lines (CLV), line movement + steam, futures, scores and box-score stats. 21 read-only tools. Works with no key on a shared demo (paid features redacted); a free key (1,000 req/day, no card) at https://prop-line.com unlocks your own limits. Docs: https://prop-line.com/for-ai-agents

Server tool list (21)

Raw names from tools/list. Only developers need these.

propline_list_sports	List all sports PropLine currently polls. Returns sport keys (e.g. baseball_mlb, basketball_nba, soccer_epl) along with human titles and active status. Use this first to discover what sport_key values are valid for the other tools.
propline_list_events	List upcoming events for a sport. Returns each event's id, home_team, away_team, commence_time. Use the returned event_id to drill into per-event odds, props, +EV, or results.
propline_list_event_markets	List the market types available for a specific event (e.g. h2h, spreads, totals, player_points, pitcher_strikeouts). Useful when you don't know which prop markets a given event carries.
propline_get_odds	Get live odds. If event_id is supplied, returns full per-event props for that event; otherwise returns bulk game-line odds for the whole sport. Pass markets as a comma-separated list (e.g. 'h2h,spreads,totals' or 'player_points,player_rebounds'). Response includes a bookmakers[] array across every book that carries the requested markets (currently up to 13: Bovada, DraftKings, FanDuel, Pinnacle, BetMGM, BetRivers, Unibet, Underdog, PrizePicks, Kalshi, Polymarket, Matchbook, Smarkets — coverage varies by sport). Underdog Fantasy outcomes carry a payout_multiplier on EVERY outcome (1.0 = standard pick, e.g. 1.5 = boost, 0.75 = discount; null means the book is not Underdog) — keep only payout_multiplier == 1.0 when comparing DFS lines to sportsbook consensus, since filtering on non-null would drop every Underdog line. Each market carries suspended_at: null while on the board, set when that book pulled the market pregame (late scratch, dropped market type) — its outcomes are then the last quoted legs, not a live price. Treat a suspended market as unbettable and, if several books show it for one player, as a probable scratch.
propline_get_odds_history	Hobby+ endpoint. Returns the historical line-movement snapshot series for an event (every recorded price/point change per outcome over the event's lifetime). Free tier returns market structure with redacted snapshots and an upgrade pointer. Supports period-historical filters: from/to (absolute ISO), relative_from/relative_to (offsets to commence_time like '-3h' or '0'), interval downsample ('30s'/'1m'/'5m'/'15m'/'30m'/'1h'), and changes_only=true to drop unchanged adjacent snapshots.
propline_get_odds_closing	Hobby+ endpoint. Returns the OPENING and CLOSING line per (book, market, outcome) for an event. Closing = the last snapshot at or before commence_time (price/point/closing_at); opening = the first snapshot in the same 14-day pre-kickoff window (opening_price/opening_point/opening_at). Canonical CLV-tracking helper; one call returns both data points your bet should be measured against, instead of fetching full history and post-processing. Compare the POINTS as well as the prices — on spreads and totals the number moves as much as the price, so a price-only comparison mis-measures those markets. opening_age_seconds says how long before kickoff the opener was recorded: the archive starts 2026-04, so a small value means PropLine started polling late and this is not the book's true open. Free tier returns redacted structure with upgrade pointer.
propline_export_odds_history	Backfill-pass / Enterprise only. Bulk line-movement tick history as CSV — every recorded odds snapshot (price + line, per book, including period markets) across a whole sport, one row per (outcome, snapshot). This is the raw firehose no subscription tier can bulk-pull (Pro/Streaming use propline_get_odds_history per event instead). REQUIRES a since/until window to keep the pull bounded — the full archive runs to gigabytes per sport. The result is capped to the first 200 rows for context safety; for the full dataset use the /v1/exports/odds-history endpoint directly with curl/SDK and stream to disk. Non-entitled keys get a 403 with an upgrade pointer.
propline_get_futures	Free-tier endpoint. Returns season-long futures (outright) markets for a sport — championship/Super Bowl/division/conference winners, MVP and award winners, season win totals — aggregated across Bovada, FanDuel, DraftKings, and Pinnacle. One row per (futures event, book, market) with each team/player outcome and its price. Marquee markets (Super Bowl winner, MVP, division/conference) are quoted by multiple books for comparison; exotic markets are often single-book. Useful for: 'who are the Super Bowl favorites across books', 'NFL MVP odds', 'NBA championship futures'. Futures are unresolved (no settlement grade).
propline_get_scores	Free-tier endpoint. Returns recent and live game scores plus status (scheduled, live, final) for a sport. Useful for: 'is this game over yet, what was the final score'.
propline_get_dfs_payouts	Free-tier reference math. Returns the PrizePicks Power Play (all legs must hit) and Flex Play (partial payouts) entry payout schedule for 2-6 legs, plus the per-leg breakeven win probability for each play. Pass leg_win_prob (e.g. 0.58) to also get expected_return (per $1) and is_plus_ev per play — the slip-level breakeven. Useful for: 'what hit rate do I need to beat a 4-pick PrizePicks Power play', 'is a 3-leg flex +EV at 60% per leg'. NOTE: standard published payouts only — demon/goblin per-pick modifiers aren't in PrizePicks's feed (see the disclaimer field); breakeven assumes independent legs.
propline_get_mlb_grand_salami	Free-tier endpoint. Returns the synthetic daily MLB Grand Salami for a given UTC date — total runs scored across every MLB game on the slate plus each book's implied Grand Salami line (median of per-game primary totals across our MLB books incl. Pinnacle, Polymarket, Matchbook, Smarkets). No retail sportsbook quotes this as a single market. Useful for: 'what's the total run line for tonight's full MLB slate', 'did the Grand Salami go over yesterday', 'historical Grand Salami results for backtesting'.
propline_get_nhl_daily_goals_total	Free-tier endpoint. Returns the synthetic daily NHL goals total (hockey's equivalent of the MLB Grand Salami) for a given UTC date — total goals scored across every NHL game on the slate (including OT/SO) plus each book's implied Daily Goals Total line (median of per-game primary totals across our NHL books). No retail sportsbook quotes this as a single market. Useful for: 'what's the total goal line for tonight's full NHL slate', 'did the Daily Goals Total go over yesterday', 'historical NHL daily-goals results for backtesting'.
propline_get_resolution_summary	Free-tier endpoint. Returns the factual volume of player props PropLine has graded against real box scores over the last N days (aggregated counts only): total graded/settled, games, sports covered, plus per-sport and top-market breakdowns. Useful for: 'how much graded prop data does PropLine have, what's the coverage'. A coverage proof, never a profitability claim.
propline_get_event_stats	Book-agnostic raw box-score stats for an event. Returns per-player stats (e.g. strikeouts, hits, points, rebounds, shots-on-goal) decoupled from any sportsbook's lines. LIVE during games for major US sports (MLB + WNBA now; NFL, NCAAF, NBA, NHL at season start): while the event's status is in_progress, stats refresh ~every 90 seconds with cumulative in-game values — use this to answer 'how is this prop tracking right now'. Treat in-progress numbers as partial; at status=final they are the official box score. Other sports populate stats at game completion. Free tier.
propline_get_event_results	Pro-tier endpoint. Returns graded prop outcomes for a completed event — every Over/Under marked won, lost, push, or void with the actual stat value next to the line. The single most distinctive feature vs the-odds-api: they don't grade props at any tier. Free tier returns the same structure with resolution and actual_value redacted plus an upgrade pointer.
propline_get_event_context	Game context for an event — the conditions a prop settles under. MLB: probable starting pitchers and their throwing hand (L/R/S — platoon-split context for every batter prop), a confirmed-lineup flag, the home-plate umpire, and first-pitch weather (temperature, wind, precipitation) at outdoor / open-roof venues (indoor venues return weather=null). NFL & NCAAF: the venue and kickoff weather. The same block is embedded in get_event_results, so every graded prop carries its conditions — unique to PropLine. Free tier. 404 when no context is on file for the event yet.
propline_get_event_movement	Line movement + steam detection from the snapshot tick history. Per (book, market, outcome): opening line, latest line, signed implied-probability shift, point shift, direction. The steam[] array flags outcomes that multiple books moved the same direction — the classic sharp-money signal, computed across all 16 books PropLine polls. When a book moves the line itself, that outcome's prob_shift is null and direction is 'line_moved' (excluded from the steam signal). No pull-only odds API can produce this. Hobby+ full; free tier redacted.
propline_get_player_history	Player prop history across recent games. Returns each prior prop this player took with line, prices, resolution, and actual value. Pro tier returns full data; free tier returns redacted resolution/actual_value with an upgrade pointer.
propline_get_player_trends	Hit-rate trends / last-N-games over rate for a player — unique to PropLine's prop-resolution data. For each market the player has graded history in, returns over/under/push splits across the last 5/10/20/50 graded games, current streak, average actual stat, and the recent line. This is the 'did X go over in N of his last M games?' surface. Omit `market` for all markets, or pass one to scope (e.g. 'player_points', 'batter_hits').
propline_get_event_ev	Pro-tier endpoint. Returns cross-book +EV per outcome for an event. We anchor on a sharp book, remove vig, derive a no-vig fair line, and compute EV% per book at the same line. Outcomes are sorted with +EV plays floated to the top of each line group. PrizePicks is excluded from EV math (DFS payouts aren't comparable to per-book prices). The anchor is chosen PER LINE in the order pinnacle → polymarket → kalshi → bovada, and each line's fair_source names the one used — report the anchor from fair_source per line, never assume Pinnacle anchored all of them. Optional bookmakers filter prices to the books the user holds accounts at; it never changes the anchor, so filtering to DraftKings still measures DraftKings against Pinnacle.
propline_get_best_line	Cross-book line shopping (Hobby+ for prices; free tier gets the full structure with book identities + best-first ranking but prices nulled and redacted:true). For every (market, player, line) tuple on an event, returns the single best American price across all comparable books, plus an all_prices array sorted best-first (one row per book, each with last_update). Companion to propline_get_event_ev: /ev says whether a price beats the no-vig fair line; best-line says which book pays the most. DFS pick'em books (PrizePicks, Sleeper, Dabble) are excluded; Underdog only at clean two-way lines. Optional bookmakers filter to shop only the books the user holds accounts at.