Most sports data vendors have no affiliate program at all. The enterprise names (Sportradar, Genius Sports, SportsDataIO, API-Sports) sell through sales teams, not referral links. That leaves a short list of programs that actually pay for referring developers, and the published terms differ enough that the choice matters.
Disclosure, up front: Live Tennis API publishes this blog and runs the first program listed. Every other figure is quoted from the program's own published page, linked so you can verify it in one click.
The programs with published terms
Rates re-read from each program's own page on October 6, 2026.
| Program | Sport coverage | Published rate | Cookie | Payout |
|---|---|---|---|---|
| Live Tennis API | Tennis (ATP, WTA, Challenger, ITF) | 51% recurring for life. Early partners 60%, at our discretion | 30 days | Monthly via PayPal/Wise, $20 minimum |
| Sports Game Odds | Multi-sport odds | Up to 20% recurring | Not published | Monthly (their page: paid on the 15th) |
| APILayer marketplace | Various data APIs | Up to 20% recurring, lifetime | Not published | Monthly via PayPal, $50 minimum |
| Sportradar / Genius Sports / SportsDataIO / API-Sports | Multi-sport | No public affiliate program | none | none |
Rates change. The program's own page is the source of truth on the day you join, and the figures above are as published on October 6, 2026.
Why do the rates spread this wide?
A 20% recurring rate is the norm for API marketplaces. The operator keeps the margin and the affiliate gets a referral fee. Live Tennis API runs the opposite model: the majority of every payment goes to the affiliate who brought the customer. For an independent API the affiliate IS the distribution. That is why the rate is 51% for life and not a launch promotion. It is priced into how the product grows.
What that means in dollars: your referral takes their 10% discount and pays $26.99/mo for Pro. Your 51% of that is $13.77 every month they stay, about $165 over a year from one referral. The 20% programs pay $6.00/mo on the same list price.
What to check before joining any API program
- Recurring vs one-time. An API subscriber who builds an integration tends to stay. Recurring share compounds where a bounty ends.
- Cookie AND code attribution. A 30-day cookie is honest. Attribution by referral code (which doubles as the customer's discount code) survives cleared cookies entirely.
- Payout rails and minimum. PayPal/Wise at a $20 minimum clears faster than a $50 minimum for a niche audience.
- Whether your audience can even evaluate the product. A free tier and public docs convert developer audiences. A sales-gated enterprise API cannot be promoted with a link at all.
FAQ
Which sports data APIs have affiliate programs? Live Tennis API (51% recurring for life), Sports Game Odds (up to 20% recurring) and the APILayer marketplace (up to 20%). Sportradar, Genius Sports, SportsDataIO and API-Sports publish no affiliate program. The enterprise vendors sell through sales teams, so there is no link to promote and no referral to be paid.
What does a sports data API affiliate program pay? Published rates run from 20% recurring at the marketplaces to 51% lifetime recurring at Live Tennis API (60% for early partners, at the program's discretion). Commission is paid on what the referred customer pays each month, so a recurring rate keeps paying for as long as that customer stays subscribed.
Who converts on a sports data API referral? Developers building scoreboards, bots and models, betting-tool builders, and tennis/sports-stats communities. These are the audiences that click through to docs and a free tier. A free tier and public docs let them test the product before anyone pays, and that is what makes the referral convert.
If tennis fits your audience, the program overview is at livetennisapi.com/affiliates and the terms-at-a-glance table at affiliates.livetennisapi.com/program.
The wider comparison including betting tools is in tennis and sports-data affiliate programs compared.