This website is operated by DeveloperData.net ("Developer Data", "we"), Empire Tower, 41st Floor, Unit 4106-7, South Sathorn Road, Yannawa, Sathorn, Bangkok 10120, Thailand. These terms are governed by the law of Thailand, and the courts of Bangkok have exclusive jurisdiction over any dispute arising from them.
1. Your account
One person or one business per account, with true details. Keep your API key to yourself: you are responsible for everything done with it.
2. Plans and billing
Paid plans are paid through Stripe and renew until cancelled. A price change is announced before it applies, and only from the next period. The refund rules are on Refunds. A purchase may be credited to the partner who referred you, through our partner program; it never changes the price you pay.
Card charges appear as DEVELOPERDATA.NET. Billing questions: https://developerdata.net/support?tab=charge
3. Fair use
Your plan's limits are the fair-use line: its calls a minute and a day, and how far back it reads (the Free key: 10 a minute, 50 a day). Getting around them is not allowed: several free accounts for one person, sharing a key, rotating keys to reset a limit, or automating this website around the API. We may slow, pause or close an account that does this.
4. The data: use it, do not replicate it
You may use what the API gives you in your own work, apps and sites, and show results to your own users. You may not resell, redistribute or republish the data itself, in bulk or through an API or feed of your own, download it in bulk to rebuild the database, or use it to build a competing product.
5. Acceptable use
Nothing unlawful. No probing or load-testing our systems without asking first. No attempts to reach another member's data. No scraping pages this website offers through its API.
6. Accuracy
The data is given as it is, gathered with care, without a warranty that it is complete or free of mistakes. It is factual sports data, not financial or betting advice.
7. Availability
We aim to keep the API running and show its state on Status, but promise no uptime unless a plan says one.
8. Liability
Our total liability is limited to what you paid us in the 12 months before the claim. We are not liable for indirect loss, lost profits or lost data.
9. Suspension and closing
We can pause or close an account that breaks these terms; a serious breach can be acted on without notice, and an account closed for a breach is not refunded. You can close your account any time (see Privacy, Deleting an account).
10. Changes to these terms
The new version is posted here with its date. A change that matters is emailed to members before it applies.
11. Law and contact
Thai law and the courts of Bangkok, as above. Questions go through Support.
12. Credits
The information used here was obtained free of charge from and is copyrighted by Retrosheet. Interested parties may contact Retrosheet at "www.retrosheet.org". Contains information from the Chadwick Baseball Bureau Persons Register, made available under the Open Data Commons Attribution License. Season figures from the Lahman Baseball Database are used under CC BY-SA 3.0, and what we publish from them carries the same licence.