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How do I turn a Google Sheet into a JSON endpoint?

Quick answer

SheetZAPI creates a live JSON endpoint from any Google Sheet in under 60 seconds. Share your sheet with the SheetZAPI service account, connect it in the dashboard, and you get a stable URL that returns your rows as clean JSON objects on every GET request — with built-in Redis caching for sub-15ms responses.

What the JSON endpoint looks like

Your endpoint is https://api.sheetzapi.com/api/v1/d/{sheetId}/rows. Every GET returns { "data": [...], "meta": { "total": N, "cached": true } }. Each item in data is a plain object keyed by your header row: { "id": 1, "name": "Widget Pro", "price": 29.99 }. Numeric and boolean values are automatically cast from their string representations.

Is the endpoint stable under load?

Yes. SheetZAPI caches every response in Redis. Cached requests return in under 15ms regardless of how many rows your sheet has. On a cache miss, SheetZAPI fetches from Google Sheets and updates the cache. Free plans cache for 60 seconds. Paid plans configure TTL from 5 seconds to 24 hours. This means thousands of clients can hit your endpoint without rate-limiting the underlying Google Sheets API.

Filtering the JSON output

Append query parameters to your endpoint URL: ?_filter=price:gte:10 returns rows where price is at least 10. ?_filter=category:eq:electronics&_sort=-price returns electronics sorted by price descending. ?_fields=id,name,price returns only those three columns. ?_limit=20&_offset=40 paginates. No backend code required for any of this.

CORS and browser access

By default, the endpoint requires an API key and does not allow cross-origin browser requests. On Developer plans and above, you configure allowed CORS origins in the dashboard — useful if you want to fetch your sheet data directly from a web app's front end without a server proxy.

Frequently asked questions

How do I create a JSON endpoint from a Google Sheet?

Connect your sheet to SheetZAPI. You instantly get a REST endpoint that returns your rows as JSON objects with filtering, sorting, and Redis caching built in.

Can I make a public JSON API from Google Sheets?

Yes. You can configure CORS to allow browser-side requests from specific origins. The endpoint still requires your API key unless you use the embed widget for fully public read-only data.

How do I keep my Google Sheets JSON endpoint fast?

SheetZAPI uses Redis caching. Cached responses return in under 15ms. Configure the TTL per sheet in your dashboard — from 5 seconds to 24 hours depending on how fresh your data needs to be.

What format does the JSON endpoint return?

Each row becomes a JSON object keyed by your header row. Numbers and booleans are auto-cast. The response envelope includes a "data" array and a "meta" object with total count and cache status.

Create your Google Sheets JSON endpoint — free

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