GKit SheetsAPI vs Google Apps Script
Comparing GKit SheetsAPI and Google Apps Script for exposing Google Sheets data over HTTP. SheetsAPI is a ready-made REST API - free in beta, open source, and self-hostable - while Apps Script is a code-it-yourself platform.
GKit SheetsAPI vs Google Apps Script at a glance
Both let you reach Google Sheets data programmatically, but they solve different problems. Google Apps Script is a general-purpose JavaScript automation platform you write code on. GKit SheetsAPI is a ready-made REST API - you point it at a sheet and get queryable endpoints without writing or deploying any script.
| GKit SheetsAPI | Google Apps Script | |
|---|---|---|
| What it is | Hosted REST API over your sheet | JavaScript automation platform |
| Price | Free in beta | Free (subject to quotas) |
| Open source | Yes (MIT) | No |
| Self-hostable | Yes | No (runs on Google's platform) |
| Write code to use it | No | Yes - you author and deploy scripts |
| Built-in REST queries | limit, offset, search, sort, fields | Build your own with doGet/doPost |
| Output formats | JSON, CSV, TSV, XML, JSONP | Whatever you code (ContentService) |
| Auth | Google OAuth + optional sk_ API keys | Google OAuth / deployment-based |
| Runs on | Cloudflare's free tier (Workers) | Google's infrastructure |
Verified Apps Script limits
These are quotas you design against on Apps Script, not pricing - the platform itself is free:
- Max execution time: 6 minutes per run (30 seconds for custom functions).
UrlFetchcalls: 20,000/day on consumer accounts, 100,000/day on Google Workspace.- Trigger total runtime: 90 min/day (consumer), 6 hr/day (Workspace).
For the current numbers, always check Google's quota page (linked below) - Google adjusts them over time.
Why GKit
Apps Script is powerful and a great fit when you need arbitrary automation logic, custom Sheets functions, or add-ons. But if your goal is simply "read and write this sheet over HTTP," GKit SheetsAPI removes the build step:
- No code to write or deploy - SheetsAPI gives you
/api/spreadsheets/{userKey}/{sheetName}(/{row})out of the box, with query params forlimit(up to 1000),offset,search,search_exact,sort(use a-prefix to reverse),fields, andformat. - Open source (MIT) and self-hostable - read exactly how your data is handled, or run it yourself. Apps Script is closed and tied to Google's platform.
- Free while in beta - and it runs on Cloudflare's free tier (Workers, ~100k requests/day), so there's no per-execution quota model to engineer around.
- Flexible auth - Google OAuth, with optional
sk_API keys; endpoints are public until you create a key.
SheetsAPI is currently in beta.
Migrating from Apps Script
If you wrote a doGet/doPost web app just to expose sheet rows as JSON, you can likely retire it. Point your client at the SheetsAPI endpoint instead and use the built-in query params for filtering, sorting, and pagination you previously hand-coded. Your sheet keeps its existing first-row-as-headers layout. See the REST API reference for the full endpoint and parameter list, and sign in to get started.
Verified June 2026. Sources: Google Apps Script overview, Quotas for Google Services.