TETR.IO

Overview

TETR.IO is a free public API in the Games & Comics category. TETR.IO Tetra Channel API.

Games and comics APIs feed community trackers, fan sites, stats dashboards, and companion apps with game and series data.

You can use this API in prototypes, side projects, and production applications — just keep the provider’s usage policy in mind.

Authentication

TETR.IO requires no authentication — you can start calling it directly, which makes it great for quick experiments and client-side demos.

HTTPS & CORS

• HTTPS: supported — traffic to TETR.IO is encrypted, so it is safe to use from production apps.
• CORS: unknown — if you plan to call TETR.IO from the browser, verify CORS support in the official docs or with a quick test request.

Getting Started

1. Read the official documentation: https://tetr.io/about/api/
2. Make a test request with curl or your favourite HTTP client.

Rate Limits & Notes

• Rate limits, quotas, and free-tier terms are defined by the provider — always check the official documentation for TETR.IO before scaling up.
• The upstream listing is community-maintained; fields like auth, HTTPS and CORS reflect the state at listing time and may change.

FAQ

Does TETR.IO require an API key?

No — TETR.IO is listed as a no-auth API, so you can call it directly.