Codeforces API Client Skill

SkillDev tools

Interface with Codeforces API for contest data, problem sets, and submissions

Instructions available. Your AI can read the instructions. Execution depends on the setup they require.

Account requirements not reviewed. Check the skill instructions before use; ahel provides instructions and does not run this skill.

Add ahel to your AI once: Claude, ChatGPT, Cursor, Claude Code or Codex. Then ask it to use this.

Then ask your AI: use the Codeforces API Client Skill skill

What this skill tells your AI

The instructions your AI receives, as published by a5c-ai/babysitter in library/specializations/algorithms-optimization/skills/codeforces-api-client/SKILL.md and read by ahel’s review.

Purpose

Interface with the Codeforces API to fetch contest data, problem sets, submissions, and user statistics for competitive programming workflows.

Capabilities

Fetch contest problems and metadata
Submit solutions and retrieve verdicts
Access user standings and rating history
Retrieve editorials and problem tags
Virtual contest management
Fetch recent submissions and status
Access problemset by tags and difficulty

Target Processes

codeforces-contest
progress-tracking
skill-gap-analysis
upsolving workflows

Integration

Uses the official Codeforces API (https://codeforces.com/apiHelp) with proper rate limiting and authentication when required.

Input Schema

{
  "type": "object",
  "properties": {
    "action": {
      "type": "string",
      "enum": ["getContestProblems", "getUserSubmissions", "getProblemset", "getStandings", "getUserRating"]
    },
    "contestId": { "type": "integer" },
    "handle": { "type": "string" },
    "tags": { "type": "array", "items": { "type": "string" } },
    "count": { "type": "integer", "default": 10 }
  },
  "required": ["action"]
}

Output Schema

{
  "type": "object",
  "properties": {
    "success": { "type": "boolean" },
    "data": { "type": "object" },
    "error": { "type": "string" }
  },
  "required": ["success"]
}

Usage Example

{
  "action": "getContestProblems",
  "contestId": 1900
}

Signals

GitHub stars: 2k
Forks: 112
Last commit: Sep 2026

Advanced

Item type: skill
Key: codeforces-api-client
Source: github.com/a5c-ai/babysitter

github.com/a5c-ai/babysitter