PROVIDER COMPARISON
Underdog Fantasy API providers: research notes
Provider research only: we do not supply Underdog data. Who publicly claims Underdog lines, what to test, and whether an official public API exists.
Editorial review: · Not a live coverage report
This page is provider research. This site does not supply Underdog Fantasy data and has no relationship with Underdog or the providers listed.
Is there an official Underdog API?
We found no official public developer documentation from Underdog. Two third-party providers state that it has no public API: SharpAPI describes "no developer portal, no API key system" source, and SportsGameOdds says the same source. Those sources sell an alternative, so weigh them accordingly, and ask Underdog directly if your project depends on the answer.
Who claims Underdog coverage
Competitor facts are paraphrased from the linked pages as they read on 2026-11-03 and may have changed. Treat vendor claims as claims: we have not measured them. This site is not affiliated with any company named here.
| Provider | What it publicly claims | Source |
|---|---|---|
| OpticOdds | Underdog Fantasy, (2 Pick) and (Multipliers) as sportsbook IDs. Sales-led access | source |
| ParlayAPI | underdog as a DFS bookmaker key, on published credit plans | source |
| The Odds API | underdog under its us_dfs region | source |
| SharpAPI | Underdog page. Free tier delayed 60 seconds, Pro at $229 a month, SSE as a paid add-on | source |
| SportsGameOdds | Underdog page, Rookie plan and above. Its odds field is a fixed +100 placeholder | source |
| Apify actor (zen-studio) | A scraper rather than a data licensor | source |
This list is what we found on one date, not a full market map. Inclusion is not an endorsement.
What to test in an Underdog feed
Pick'em products need different checks from sportsbook feeds. Ask each provider to show these on real rows.
- How multipliers and boosted lines are represented, and whether a placeholder price is filled in.
- Whether one-sided rows stay one-sided.
- What happens to a removed or paused line, and whether its last-seen time is exposed.
- Update clocks: when the provider captured a row, compared with when it says the source changed.
- How far back the history goes for one specific sport and stat, not in general.
- What the license allows for a public product.
Where this site can help
We cover DraftKings only. If your project compares pick'em products, you can use this API for the DraftKings Pick6 side and a provider above for the other. Keep identifiers separate, and do not merge players across sources by name without a verification step. See evaluating DFS pick'em APIs.
Try it
This asset reads DraftKings data only. Use it to compare field shapes with a provider you are evaluating.
Endpoint docs
Working assets
Check the recorded data
Questions
Does draftkingsapi.com supply Underdog data?
No. This site supplies observed DraftKings data only. This page is research on other providers.
Does Underdog have an official public API?
We found no official public developer documentation. Third parties that sell alternatives state that none exists. Ask Underdog directly if your project depends on it.
Which Underdog provider is best?
We have not measured any of them, so we do not rank them. Test each on one sport and stat you know, and read its rights terms.
Sources
- OpticOdds docs: sportsbooks checked 2026-11-03
- ParlayAPI: documentation checked 2026-11-03
- The Odds API: bookmaker APIs checked 2026-11-03
- SharpAPI: Underdog odds API checked 2026-11-03
- SportsGameOdds: Underdog odds API checked 2026-11-03
- Apify: zen-studio Underdog player props actor checked 2026-11-03
Related resources
Provider research only: we do not supply Sleeper data. What Sleeper's official API covers, who claims Sleeper Picks lines, and what to test.
DFS pick'em API providers comparedWhich providers publicly claim DraftKings Pick6 and other pick'em data, how their models differ, and what to test before choosing. Sourced and dated.
DFS and pick'em APIs: what to checkDFS contests and salaries are not the same data as pick'em lines. How the terms differ, what to test in a provider and what this API supplies.
Independent service operated by DD Inc., not affiliated with or endorsed by DraftKings. Technical access is not a redistribution license. No wagering: this service does not place, recommend or settle entries or bets. Check sources and status for actual capture context.