Forum

I just now needed to shut off access to the API for an IP address that was attempting to pull all PGNs, for all games, apparently for all players. This is decidedly against the goals of the API, which is to help developers build tools that help players enjoy and learn more from their games on chess.com. I hate blocking people, but I need to protect the site. Downloading all games is foolish — even at the max rate limit of 3 archives per second, this would take 3 years of continuous operation... during which time enough games would have been played to require another 18 months to download. During which time enough games would be played... It might never end. The person who created this Python script did not create a user-agent string that allowed us to contact him. I want to call attention to this text in the documentation: In some cases, if we detect abnormal or suspicious activity, we may block your application entirely. If you supply a recognizable user-agent that contains contact information, then if we must block you application we will attempt to contact you to correct the problem. Maybe it wasn't clear that downloading the whole library is a bad idea, but we couldn't contact this developer to explain that and work out a solution. What if we made it more clear? Developers with working code, let's discuss some options. Would this work for you? We establish a total limit per day. The limit should be about 3–5x higher than anyone currently uses for their programs. This could be a limit on the total number of requests (which might penalize applications that consume a lot of small endpoints frequently), or the total bandwidth (which might penalize downloading large archives). Which is better? We would place the information about your daily allowance in the response headers. When you get to 90% of the limit, a 429 "Too Many Requests" response will be delivered 50% of the time; at 100%, a 429 response is delivered to every request until the next day In this way, you will know what's allowed and when you are getting close. If this happens often and you are building tools for the Chess.com players, then we can work with you to get special, higher rate limits. What do you think? Comments or ideas welcome!

There seems to be a bug in the pgn API, when the response size for a given player is above 10MB, then you get an empty result. A similar problem is with the game list and the missing corresponding field.

Developing a web app which I plan to deploy in heroku. I use python requests to get info from endpoints. Example. import requests headers = {'User-Agent': 'head2head'} username = 'gmwso' url = f'https://api.chess.com/pub/player/{username}/games/archives'r = requests.get(url, headers=headers).json() Is the header with user-agent enough in getting the info or I will just remove it or maybe add more like email address? Sample app image.

Hello everyone, I've built a Prometheus exporter for chess.com player data.Check out the README for more in-depth info, if you're interested I'm happy for any feedback, interaction, or collaboration. https://github.com/MarioUhrik/chess-exporter

I'd like to start soon tournaments with the very interesting new Clubs Arenas feature announced this fall: https://www.chess.com/news/view/chesscom-releases-club-arenas These tournaments generate scores for Clubs and for players. I'd like to know how could I use APIs for this? Thanks!

Missing forward slash after live. https://www.chess.com/news/view/published-data-api#pubapi-endpoint-match-live-profile URL pattern: https://api.chess.com/pub/match/live{ID}

I use archlinux on KDE plasma, any other good ones?

Match roster shows different rating value to API of player stats. Seems to apply with a player new to C960 games and only unrated games in archieve Example: @roywebbhastings https://www.chess.com/stats/daily/chess960/roywebbhastings rating displayed as 400 In roster (Starting at 5pm today) Board #167 https://www.chess.com/club/matches/1334529/games?&p=2 rating displayed as 1200 https://api.chess.com/pub/match/1334529 {"username":"roywebbhastings","rating":1200,"timeout_percent":0,"rd":350,"status":"basic"} API stats https://api.chess.com/pub/player/roywebbhastings/stats Rating shown as 400 "chess960_daily":{"last":{"rating":400,"date":1372872745,"rd":350},"record":{"win":0,"loss":2,"draw":0,"time_per_move":8653,"timeout_percent":0}}

Hello, When I use Game Review on a browser I get great data about the game (see first link below). It tells me when I used Game Review, who used Game Review (in this case, me), what the arc of the game was, and dozens of other great pieces of info. My question is, is there a way to get all that great info for games that had Game Review used on the phone app? https://www.chess.com/callback/analysis/game/live/5943251166/all <- browser https://www.chess.com/callback/analysis/game/live/36369028555/all <- chess.com app

I was viewing the details of one of my games via the game ID API callback endpoint:https://www.chess.com/callback/live/game/5906492213 I noticed the moveList key with the following move notation: moveList: "mC0Kgv!TbsYIft5QegQziqztktWGvKZRKA6EnvENdm7ZAPZ6P6" What type of chess move notation is that using? Looking at the Move list, it appears two characters represent a move since this game had a total of 25 ply. My guess is that each two letter combination is recording which piece has moved where but it might just hold to and from destinations. It looks like a neat notation but I haven't checked the Javascript files yet to see if there is any code there that gives more answers. Anyone know?

Is there any public API for the leagues? Thanks

The 'beta' is complete. I invite you to register as a member at www.4teamchess.com. Once you register, you don't have to do it again. Then, sign-up for a tournament event. After that, play a rapid 30-minute match on chess.com. Then post the rating received on the tournament site. At 10 PM CST, the tournament will run using 1000 simulated players and however many humans signed up for that day. The results of the tournament are available the following morning. If you are not on the winners' list you can see what team you were on from the results page. Good luck I hope you will help us find any bugs!! The club for the site here on chess.com is 4teamchess International

Even after pressing the button [ game review ] 3 times, it does not have the result back to me. The analysis one? Can some one from dev help me out plz? I don't know what happen. Thanks

Hello, I'm not sure why, but for two games that are very similar that have both been reviewed I get different data. For example, for the first game, I get a whole lot of great data about the game, who reviewed the game, what their CAPS scores were, etc. For the second game, all I get is that the game was reviewed (this is where it says "analysisLogExists: True". Does anyone know why? https://www.chess.com/callback/analysis/game/live/35927933391/all https://www.chess.com/callback/analysis/game/live/9726554423/all

In collaboration with chess.com, I have developed a proof of concept to demonstrate the largest chess tournament in the world. The proof lives at www.4teamchess.com. I am offering a share of my company, World Wide Sports Promotions, LLC. for those that have programing skills, API experience, and/or administrative experience. I own two other Proof of concepts in the sport of bowling and Golf. I will provide more details to those that show interest and have the skills mentioned above. Thanks and Happy Thanksgiving to those in the US.

I will get alerts on my Android for messages. I will clearly see there is a new message in the list, but when I try to open the individual message, it isn't there. If I go to my desktop, there is no issue. I wanted to see if there is a way to add a refresh button or if something can be done to improve the communication in real time. I have already tried uninstalling and reinstalling and I have made sure I am up to date.

Hello, I am using chess.com games archives to download player games. Today the PGN are no more present in the api response.For example https://api.chess.com/pub/player/jrrossibr/games/2021/02 does not contain any PGN.The PGN field is in the documentation: https://www.chess.com/news/view/published-data-api#pubapi-endpoint-games-archive Is it a bug or you intentionally removed it? It was super useful to have the PGN. Best regards,Noé

How can I make a Chess game mode like Chess960 or CrazyHouse? Please respond, thanks!

I posted this before but it got lost. It makes no sense that the API provides highest and lowest puzzle rating. Those are likely not even relevant except maybe a chart. My application gives you profile data. Since it has both Lichess and Chess.com, I cannot allow a scenario where your puzzle rating on Lichess is your current rating, and your puzzle rating on Chess.com is your best rating, as this is discrimination. As a result, my application ( discord bot ) doesn't support Chess.com puzzle rating in the claim that Chess.com does not give me that data.

https://api.chess.com/pub/club/{ID}/matches if request sent to this end point with team name with UTF chars then returns null string. No error code sent back. Would expect either 404 or 410 response. Example: https://api.chess.com/pub/club/principauté-de-monaco/matches