The best tennis API for what you are building
There is no single best tennis API. There is the one that fits the job in front of you, and the fastest way to find it is to run your own workload against a free key before you pay anyone anything.
Match the job to the plan
A live scoreboard or a bot that reacts to scores
Live matches with sets, games, points, server and tiebreak state; fixtures; players. Enough to build and ship the read side before you pay anything.
Backtesting, research, or anything that needs what already happened
Adds completed results, the point-by-point record, the 1968–2022 results archive, head-to-head and career aggregates.
Pricing models and anything that needs the market’s view
Adds match events, match-winner prices with history, and rank-ordered ranking tables.
In-play trading, model serving, or a feed you subscribe to rather than poll
Adds AI win-probability, in-play statistics, per-player as-of rankings, rally construction and the push feed.
The live feed is the same on every plan — no tier sees more matches than another. What the paid tiers add is depth, not breadth. Full prices and annual terms are on the pricing page.
What a first call looks like
# Live matches — free tier, no card.
curl -s "https://api.livetennisapi.com/api/public/v1/matches?status=live" \
-H "X-API-Key: $KEY"
# Python — pip install livetennisapi
from livetennisapi import Client
live = Client(api_key=KEY).matches(status="live")
print(len(live), "matches in progress")
# JavaScript — npm i livetennisapi (zero runtime deps)
import { Client } from "livetennisapi";
const live = await new Client({ apiKey: KEY }).matches({ status: "live" });
The full surface is in the reference, and the OpenAPI document is published so you can generate a client rather than write one.
How to check any of this without trusting us
Questions
What is the best tennis API?
It depends on what you are building, and anyone who answers without asking that is guessing on your behalf. If you need live in-play data over REST or a push feed with a free tier that needs no card, Live Tennis API fits. If you only need finished results for offline research, you may not need a live API at all. The honest way to decide is to run your own workload against a free key before you pay.
Is there a genuinely free tennis API?
Live Tennis API has a permanent free tier, not a countdown trial: live matches and scores, fixtures, tournaments and players, with published limits and no card. A trial measures how fast you can integrate. A free tier measures whether the data is any good, which is the question you are actually asking.
Which tours does it cover?
ATP, WTA, Challenger and ITF, singles and doubles. The live feed is identical on every plan — no tier sees more matches than another. What the paid tiers add is depth: history, market prices, per-point events and the model, not extra matches.
How do I check the latency claims myself?
Ask for two timestamps on every push frame. Live Tennis API carries the event timestamp and a publication stamp, so the gap between them is our processing time and your own receive clock minus the publication stamp is transport. A feed with a single timestamp cannot be checked from outside, whatever number it advertises. The method and our own measured figures are published at besttennisapi.com.
Can I start without talking to sales?
Yes. Every plan is self-serve with an instant key, prices are published, and you can cancel from the portal. There is no call to book and no quote to wait for.