Search AtCoder problems and fetch public problem statements through MCP.
Most planning and project tracking work still happens through a UI a human drives. AtCoder MCP server moves it into the conversation instead. Search AtCoder problems and fetch public problem statements through MCP.
Find and read past AtCoder problems through MCP, locally or over hosted HTTP.
The server publishes 4 tools. What each one is for:
oj_capabilities — Report the available AtCoder read operations and transportoj_health — Report process readiness and the latest upstream readoj_fetch_problem — Fetch one past problem by canonical URL or contest/task idoj_search_problems — Resolve an exact task URL or contest/task identifierBecause this one is hosted, setup is mostly authentication — you point your client at the endpoint and approve access. Nothing runs on your machine, so there is no runtime to keep patched.
Among the planning and project tracking options, the useful question is rarely "what can it do" but "what does it cost you to run" — permissions, credentials, and how much of your context its toolset consumes. AtCoder's toolset — oj_capabilities, oj_health, oj_fetch_problem and 1 more — is a fair guide to whether it matches your workflow. It is maintained by ketherworks; worth a glance at recent repository activity before you build anything load-bearing on it.
This entry was verified against AtCoder's own documentation before publication; SyncDev keeps the directory reviewed rather than auto-generated.
| Tool | What it does |
|---|---|
| oj_capabilities | Report the available AtCoder read operations and transport. |
| oj_health | Report process readiness and the latest upstream read. |
| oj_fetch_problem | Fetch one past problem by canonical URL or contest/task id. |
| oj_search_problems | Resolve an exact task URL or contest/task identifier. |
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