# AtCoder MCP Server MCP server

Search AtCoder problems and fetch public problem statements through MCP.

## Links
- Registry page: https://www.getdrio.com/mcp/io-github-ketherworks-atcoder
- Repository: https://github.com/ketherworks/atcoder-mcp-server

## Install
- Endpoint: https://api.ksrnyx.top/oj-mcp/atcoder/mcp
- Auth: Not captured

## Setup notes
- Remote endpoint: https://api.ksrnyx.top/oj-mcp/atcoder/mcp

## Tools
- oj_capabilities (AtCoder Provider Capabilities) - Report the audited anonymous AtCoder read surface and explicitly unsupported operations. Endpoint: https://api.ksrnyx.top/oj-mcp/atcoder/mcp
- oj_health (AtCoder Provider Health) - Report local readiness and the latest observed AtCoder page-read status without probing upstream. Endpoint: https://api.ksrnyx.top/oj-mcp/atcoder/mcp
- oj_fetch_problem (Fetch AtCoder 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. Endpoint: https://api.ksrnyx.top/oj-mcp/atcoder/mcp
- oj_search_problems (Find Exact AtCoder Problem) - Resolve exactly one contest/task id, atcoder:contest/task id, or canonical task URL. Free-text and catalog crawling are not supported. Endpoint: https://api.ksrnyx.top/oj-mcp/atcoder/mcp

## Resources
Not captured

## Prompts
Not captured

## Metadata
- Owner: io.github.ketherworks
- Version: 0.1.0
- Runtime: Streamable Http
- Transports: HTTP
- License: Not captured
- Language: Not captured
- Stars: Not captured
- Updated: Jul 21, 2026
- Source: https://registry.modelcontextprotocol.io