Codeforces MCP Server
简体中文
Search official Codeforces problem metadata through a small MCP server.
Quick Start
Add the hosted server to your MCP configuration:
{
"servers": {
"codeforces": {
"type": "http",
"url": "https://codeforces-mcp.ksrnyx.top/mcp"
}
}
}
The endpoint accepts anonymous read requests. It does not need an API key, Cookie, or judge account.
Then ask:
Find five beginner Codeforces problems tagged implementation.
What It Can Do
| Tool | Purpose |
|---|
oj_capabilities | Report the available Codeforces read operations and transport. |
oj_health | Report service health and the latest official API observation. |
oj_search_problems | Search the official problemset by title, id, rating, or tag. |
codeforces_get_problem_metadata | Fetch official metadata by id, such as 158/A, 158A, or 158-A. |
Run Locally
Requires Node.js 22 or newer.
npm ci
npm run check
npm run build
node packages/codeforces/dist/index.js
MCP client configuration from a source checkout:
{
"servers": {
"codeforces": {
"type": "stdio",
"command": "node",
"args": ["/absolute/path/packages/codeforces/dist/index.js"]
}
}
}
Tagged GitHub releases attach a standalone npm tarball.
Availability
- Hosted MCP:
https://codeforces-mcp.ksrnyx.top/mcp
- Official MCP Registry:
io.github.ketherworks/codeforces, described by server.json
- Health status: see the repository homepage or call
oj_health
Source and Safety
This standalone release is generated from the reviewed
Competitive Programming MCP source.
The release package bundles the shared OJ contract implementation, so its runtime does not depend
on unpublished workspace packages.
This project is unofficial and is not affiliated with or endorsed by Codeforces.
The server exposes no run or submit tool. It accepts no judge account credentials. See
SECURITY.md for the security boundary and PROVENANCE.md for the
canonical source revision.
Development
npm ci
npm run check
npm run pack:check
npm run deploy:dry
License
Adapter source code is MIT licensed. Judge problem content and trademarks are not relicensed by
this repository.