AtCoder MCP Server
Search AtCoder problems and fetch public problem statements through MCP.
| Endpoint | https://api.ksrnyx.top/oj-mcp/atcoder/mcp (streamable-http) |
|---|---|
| Registry version | 0.1.0 |
| Now | 4 tools · grade C (75) · pin ts_1be8d29a11e8b93c538843e28a0d2cda · protocol 2025-06-18 |
| First / last listed | 2026-10-27 00:48 UTC / 2026-10-27 00:48 UTC |
| Grade over time | 2026-10-27: C (75), 4 tools |
Is this your server? Own a server? ToolFit hosted watch re-checks it every 24 h ($0.25 per 30 days) or 6 h ($0.60) and sends you an HMAC-signed webhook when its tools or grade change: POST https://api.youraitools.co/toolfit/v1/watch. To opt out, see About & opt-out.
Tools: oj_capabilities oj_health oj_fetch_problem oj_search_problems
oj_capabilities | Report the audited anonymous AtCoder read surface and explicitly unsupported operations. params: none |
oj_health | Report local readiness and the latest observed AtCoder page-read status without probing upstream. params: none |
oj_fetch_problem | Fetch one public problem statement from an exact contest/task pair or canonical atcoder.jp task URL. Returns sanitized HTML with preserved math, samples, limits, hashes, and source provenance. params: none |
oj_search_problems | Resolve exactly one contest/task id, atcoder:contest/task id, or canonical task URL. Free-text and catalog crawling are not supported. params: schemaVersion*, requestId*, platform*, query*, locale, limit* |
Entries describe changes in tool definitions. They are not statements about a server, its quality or its author. The grade measures how the tool definitions fit model providers (token cost, schema compatibility, confusable names) as scored by the ToolFit engine at the time of the listing. JSON: append .json. Opt-out: how or hello@youraitools.co.