M
API Matrix

mod.io API

Games & Comics / API Key Intermediate HTTPS
Varies by plan (check documentation)
82 Score
Grade A
Visit Official Site Compare Alternatives

Overview

The mod.io API is a cross-platform modding platform that lets you access, upload, and manage game mods programmatically. Game developers can integrate mod.io into their games so players can browse and install community mods directly. You need a free API key for read access, and OAuth for mod management operations.

💡

Beginner Tip

Start with the GET /games endpoint to see all games that use mod.io, then pick a game ID and call GET /games/{game-id}/mods to browse its mod library. Register for a free API key at https://mod.io to authenticate your requests.

Available Data

Use case: Integrate cross platform mod api data into web and mobile applications
mod.io data via REST API
JSON-formatted response data
Requires API key authentication

Example Response

JSON Response 
{
  "id": 1,
  "name": "mod.io",
  "data": "Cross Platform Mod API",
  "source": "mod.io"
}

Field Reference

id Unique identifier for the mod or game resource
name Display name of the mod or game
summary Short plain-text description of the mod (max 250 characters)
submitted_by User object of the mod's creator, including their username and profile URL
date_updated Unix timestamp of the last time this mod was updated
stats Engagement stats including downloads_today, downloads_total, subscribers_total, and ratings breakdown

Implementation Example 

const url = "https://docs.mod.io/";
// Replace headers or query params with the values required by this API.
const response = await fetch(url, {
  headers: {
  "X-API-Key": "YOUR_API_KEY"
  }
});
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

401 Unauthorized Missing or invalid API key in the request
✓ Register at https://mod.io/me/access and include your key as the api_key query parameter or in the Authorization header
422 Unprocessable Entity Submitting a mod upload with missing required fields like name or summary
✓ Review the mod object schema in the docs and ensure all required fields are included; name and summary are always required
Paginated results cut off The API defaults to returning only 100 results per page
✓ Use the _limit and _offset query parameters to paginate — check the result_total field in the response to know how many total mods exist

Matrix Score Breakdown

🌐 Reachability 30/30
⚡ Speed 15/20
🔒 Security 15/15
🛠 Developer XP 12/20
✓ Reliability 10/15

Partially tested on Apr 5, 2026

Technical Specifications

Auth API Key
HTTPS REQUIRED
CORS UNKNOWN
Category Games & Comics
Difficulty Intermediate
Verified: 2026-04-04

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