AtCoder MCP Server

io.github.ketherworks/atcoder · v0.1.0 · productivity

AtCoder MCP Server is healthy: it completed an MCP handshake in 2916 ms and exposes 4 tools.

Search AtCoder problems and fetch public problem statements through MCP.

Endpoint: https://api.ksrnyx.top/oj-mcp/atcoder/mcp (streamable-http)

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Facts

Users (last 30 days)0
HandshakeHealthy
Auth neededNone
Tool count4
Latency2916 ms
Last checked (UTC)2026-10-15T04:35:49.996Z

Health history

Checked (UTC)StatusLatencyError
2026-10-15T04:35:49.996ZHealthy2916

Tools (4)

oj_capabilitiesReport the audited anonymous AtCoder read surface and explicitly unsupported operations.
oj_healthReport local readiness and the latest observed AtCoder page-read status without probing upstream.
oj_fetch_problemFetch 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.
oj_search_problemsResolve exactly one contest/task id, atcoder:contest/task id, or canonical task URL. Free-text and catalog crawling are not supported.