Can you evaluate it properly before paying, without a card?
A permanently free key with published limits that lets you run your real workload against real fixtures. A countdown trial that expires mid-evaluation does not count.
Why it separates providers
A trial measures how fast you can integrate. A free tier measures whether the data is any good. Only one of those is the question you are actually asking.
The test you can run
Sign up without a card, then run the calls your product would actually make and read the rate-limit headers. Check whether the limits are published as numbers or described as 'generous'.
What Live Tennis API measures
Not yet measured. This criterion has no published figure. We do not estimate one. The page says so, and the method that will produce it is written down in advance.
What this site does publish, each one measured:
measured October 28, 2026
n=620
measured October 28, 2026
n=620
Check it against us
A free API key takes a minute and needs no card. Every criterion on this site is one you can verify against our live service. The harness runs the same test against any other provider you are evaluating.
The other criteria
| # | Criterion | The question it answers |
|---|---|---|
| 01 | Latency | How quickly does a scoring event reach your code? |
| 02 | Completeness | What share of matches actually carry every point? |
| 03 | Tour coverage | Which tours are in scope, and are they equally served? |
| 04 | Point-by-point | Is there a real per-point record, and does it say where it came from? |
| 05 | Streaming | Can you subscribe instead of poll, and how far does it fan out? |
| 07 | Historical depth | How far back does it go, and what survives at that depth? |
| 08 | Spec and SDKs | Is the contract machine-readable, and is it kept honest? |