ExtendsClass JSON Storage

Overview

ExtendsClass JSON Storage is a free key-value JSON store — create a “bin”, read/write JSON with simple HTTP calls. No auth for basic use.

Note (verified 2026-08): the root and some documented paths return 403/404 (host hardening) — create a bin from the web UI first, then use its URL. The service itself is alive.

Quick Start

1. Create a bin at extendsclass.com/json-storage (web UI) → get a URL like https://json.extendsclass.com/bin/{id}.
2. Write:

curl -X POST "https://json.extendsclass.com/bin/{id}" \
  -H "Content-Type: application/json" \
  -d '{"hello": "world"}'

3. Read:

curl "https://json.extendsclass.com/bin/{id}"

Authentication

None for basic use (an API key exists for higher limits).

Rate Limits & Notes

• Free; storage limits apply (check the docs).
• Ideal for quick prototypes, webhooks, and demos.

FAQ

Is ExtendsClass JSON Storage free? Yes — free with storage limits.

Why 403/404 on some paths? Host hardening (verified) — create a bin first, then use its URL.

What’s it for? Lightweight JSON persistence for demos and prototypes.