GitHub Contribution Chart Generator API
Overview
The GitHub Contribution Chart Generator API creates a visual representation of any GitHub user's contribution activity over the past year. No API key is required — simply provide a GitHub username and embed the generated image URL directly in a README or webpage. It is a great beginner project for learning how to work with image-generating APIs.
Beginner Tip
You can embed the chart directly in a GitHub README using Markdown: . No code needed — just swap in your username and paste the link.
Available Data
Example Response
{
"full_name": "octocat/Hello-World",
"description": "My first repository on GitHub!",
"stargazers_count": 1500,
"forks_count": 320,
"language": "JavaScript",
"open_issues_count": 12,
"created_at": "2011-01-26T19:01:12Z"
} Field Reference
contributions List of daily contribution entries, each containing a date and count date ISO date string (YYYY-MM-DD) for each day's contribution data count Number of contributions (commits, PRs, issues, reviews) made on that day level Activity level 0-4 used to determine the color intensity on the contribution graph total Summary object with yearly totals keyed by year (e.g., {"2024": 1234}) Implementation Example
const url = "https://github-contributions.vercel.app/";
const response = await fetch(url);
if (!response.ok) throw new Error(`Request failed: ${response.status}`);
const data = await response.json();
console.log(data); What Can You Build?
Note: These code examples are AI-generated and unverified. Always refer to the official API documentation for accurate usage.
Common Errors & Troubleshooting
Matrix Score Breakdown
Fully tested on Apr 5, 2026
Technical Specifications
Related Tags
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