Insider API · v1

Historical betting data, by the game.

Every completed MLB, NFL, NCAAF, NBA and NHL game since 2022 with final scores, consensus and per-book opening and closing lines, period markets, venue and weather, and graded results — current through last night. One key, JSON or CSV, no scraping.

What you get

Games — one row per final: score, period scores, consensus ML/spread/total open and close, result flags, venue, lead official, weather (outdoor sports).
Per-book odds — open and close per US book for moneyline, spread, total and team totals, graded against that book's number.
Period markets — first half, quarters, first period, first five innings as captured per book.
Catalog — what's published per sport and season, with counts, so you can verify coverage before you build.

Historical only, on purpose. Nothing on this API is a live or upcoming line, so you can build and backtest without worrying about redistribution of current odds. You may use and redistribute the data in your own product; you may not resell it as an API or raw feed. See the Insider API Terms.

Coverage

sport	League	First season	Seasons	Games published
mlb	Major League Baseball	2022	2022, 2023, 2024, 2025, 2026	12,342
nfl	National Football League	2022	2022, 2023, 2024, 2025, 2026	1,218
ncaaf	NCAA Football (FBS)	2022	2022, 2023, 2024, 2025, 2026	4,214
nba	National Basketball Association	2023	2023, 2024, 2025, 2026	5,282
nhl	National Hockey League	2024	2024, 2025, 2026, 2027	4,281

Season numbering differs by sport (NBA/NHL use the year the season ended) — see conventions. Live counts: GET /v1/sports.

Endpoints

GET /v1/sports

Sports, seasons and markets currently published

GET /v1/teams

Teams for a sport

GET /v1/seasons

Season summaries for a sport

GET /v1/games

Completed games with consensus open/close and result

GET /v1/games/{game_id}

One game: per-book odds, period odds, period scores, weather

GET /v1/odds

Per-book open/close for completed games

Guides

Quickstart

Get a key and make your first call in under a minute.

Authentication

Bearer keys, trials, and what 401 vs 403 mean.

Pagination & CSV

Cursor paging, page sizes, and CSV export.

Rate limits & quotas

Per-minute limits, monthly quotas, caching and ETags.

Errors

The error envelope and every error code.

Data conventions

Seasons, dates, odds format, consensus, pushes, exclusions.

Data dictionary

Every response field, grouped by object.

MCP for agents

Connect Claude, Cursor or ChatGPT to the API.

Base URL & spec

Base URL

https://api.thebettinginsider.com/v1
# OpenAPI 3.1
https://api.thebettinginsider.com/v1/openapi.json
# Docs as one markdown file (for agents)
https://www.thebettinginsider.com/api/docs/llms.txt

Reference pages are generated from the live OpenAPI document (v1.0.0).