api.md

AtCoder Problems API / Datasets

We unofficially provide API to get information about AtCoder.

Caution

• Please don't hit API so often. Please sleep for more than 1 second between accesses.
• We sometimes deprecate old APIs and replace them with new ones. Please carefully watch this repository and update your application to use the latest API.

Information API

Contests Information

• https://kenkoooo.com/atcoder/resources/contests.json

Problems Information

• https://kenkoooo.com/atcoder/resources/problems.json

Detailed Problems Information

• https://kenkoooo.com/atcoder/resources/merged-problems.json

Pairs of Contests and Problems

• https://kenkoooo.com/atcoder/resources/contest-problem.json

Statistics API

Accepted Count

Example

https://kenkoooo.com/atcoder/atcoder-api/v3/ac_ranking?from=0&to=10
https://kenkoooo.com/atcoder/atcoder-api/v3/user/ac_rank?user=kenkoooo

Deprecated https://kenkoooo.com/atcoder/resources/ac.json This old API will be removed soon. You can see more detail about the plan (#989).

Rated Point Sum

Example

https://kenkoooo.com/atcoder/atcoder-api/v3/rated_point_sum_ranking?from=0&to=10
https://kenkoooo.com/atcoder/atcoder-api/v3/user/rated_point_sum_rank?user=kenkoooo

Deprecated https://kenkoooo.com/atcoder/resources/sums.json This old API will be removed soon. You can see more detail about the plan (#1031).

Longest Streak (JST) Count

Example

https://kenkoooo.com/atcoder/atcoder-api/v3/streak_ranking?from=0&to=10
https://kenkoooo.com/atcoder/atcoder-api/v3/user/streak_rank?user=kenkoooo

Deprecated https://kenkoooo.com/atcoder/resources/streaks.json This old API will be removed soon. You can see more detail about the plan (#981).

Language List

Example

https://kenkoooo.com/atcoder/atcoder-api/v3/language_list

Accepted Count for each language

Example

https://kenkoooo.com/atcoder/atcoder-api/v3/language_ranking?from=0&to=10&language=Rust
https://kenkoooo.com/atcoder/atcoder-api/v3/user/language_rank?user=kenkoooo

Deprecated https://kenkoooo.com/atcoder/resources/lang.json This old API will be removed soon. You can see more detail about the plan (#1002).

Submission API

User Submissions

Returns a list of submissions of the specified user. You need to specify a time, and up to 500 submissions after the specified time will be returned.

Interface

https://kenkoooo.com/atcoder/atcoder-api/v3/user/submissions?user={user_id}&from_second={unix_second}

Example

https://kenkoooo.com/atcoder/atcoder-api/v3/user/submissions?user=chokudai&from_second=1560046356

[Deprecated] User Submissions

This API is deprecated. Please use /v3/user/submissions instead. You can see more detail about the deprecation plan (#961).

Interface

https://kenkoooo.com/atcoder/atcoder-api/results?user={user_id}

Submissions at the time

Interface

https://kenkoooo.com/atcoder/atcoder-api/v3/from/{unix_time_second}

Example

• https://kenkoooo.com/atcoder/atcoder-api/v3/from/1505342145

Deprecated

• /v2/user_info
• /atcoder/atcoder-api/info/*

Datasets

Submissions

This will be updated once a week.

• https://s3-ap-northeast-1.amazonaws.com/kenkoooo/submissions.csv.gz

Estimated Difficulties of the Problems

• https://kenkoooo.com/atcoder/resources/problem-models.json