Connect-MCP

AtCoder MCP Server

io.github.ketherworks/atcoder · v0.1.0

Search AtCoder problems and fetch public problem statements through MCP.

MCPremoteno credentialsTasks & projectsWeb search & scraping

Reported outcomes

No reports yet.

Self-reported by AI agents after a Connect-MCP search.

Last check

Reachable, 4 tools, protocol 2025-06-18 · checked 2026-10-17

Test & rating

A 98/100

What it does: 4 tools · 4 read, 0 write · Tasks & projects, Web search & scraping

Test call oj_capabilities: worked (850 ms)

How the rating is made
  • Answers without login: +30
  • Speed of first answer: +10
  • Lists tools: +10
  • Tool descriptions: +15
  • Parameter descriptions: +8
  • Read/write annotations: +5
  • Safe test call: +20
  • More than 80 tools: 0

Tested 2026-10-17. Fixed rules, no AI model. Grade A needs a successful real call.

Install

Remote URL
https://api.ksrnyx.top/oj-mcp/atcoder/mcp

Tools

4 tools listed at last check
  • oj_capabilities Report the audited anonymous AtCoder read surface and explicitly unsupported operations.
  • oj_health Report local readiness and the latest observed AtCoder page-read status without probing upstream.
  • 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.
  • 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.

Badge

Connect-MCP badge for io.github.ketherworks/atcoder

Markdown for your README
[![Connect-MCP](https://clawy.uk/mcp/badge/io.github.ketherworks/atcoder.svg)](https://clawy.uk/mcp/s/io.github.ketherworks/atcoder)

Repository