Games & Comics — entry 046 of 77
mod.io
mod.io is a cross-platform SDK and REST API that lets game studios bolt on user-generated mod support — uploads, versioning, dependencies, ratings, and monetization payouts — without building their own hosting and moderation stack. A live unauthenticated request against api.mod.io correctly returns a 401 pointing to the docs, and requests carry a wildcard Access-Control-Allow-Origin header; access is free for indie titles within rate limits, with paid white-label and marketplace-transaction tiers for larger studios.
AuthenticationAPI KeySign up with the provider to obtain credentials.
HTTPSSupportedTraffic is encrypted in transit.
CORSEnabledCallable directly from browser JavaScript.
PricingFreemiumA usable free tier exists, with paid plans for more volume.
FormatsJSONResponses can be requested as JSON.
GreatAPIs Score
Score75
Authentication15/25API key required
Pricing17/20Freemium tier available
Docs14/20Documentation URL provided
Formats9/15Single response format
Freshness20/20Verified within 6 months
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<a href="https://greatapis.com/api/mod-io/"><img src="https://greatapis.com/badge/mod-io.svg" alt="Scored 75 on greatapis.com"></a>Auth quickstart
- Sign up with the provider to get an API key.
- Send it on every request as a header
Authorization: <key> - The exact header isn't documented — Authorization is a common default; confirm in the provider's docs.
Stored keyNo key stored
Your key is stored only in this browser (localStorage) and sent directly to the API — never to greatapis.