Changelog

A record of every GKit release - what shipped, what changed, and what was fixed.

All notable changes to GKit are documented here. GKit follows semantic versioning.

v0.5.0 - 2026-06-25

Added

Cron expression explainer tool - parse any 5-field cron expression into plain English. Useful for Apps Script triggers, CI schedules, and background jobs.
20 free developer tools - full suite now includes JSON formatter, CSV converter, JWT decoder, Base64, A1 notation, URL encoder, regex tester, and more.
50+ blog posts covering SheetsAPI integrations for Python, PHP, Go, Ruby, Java, Kotlin, C#, TypeScript, Angular, Vue, Svelte, Flutter, and more.
Advanced filtering docs - search, sort, field projection, and pagination recipes.
Error handling docs - HTTP status codes, retry patterns, and best practices.
Marketplace expanded to 20 listings across 6 categories.

v0.4.0 - 2026-06-24

Added

OG images on all 19 tool pages and both product pages.
Canonical URLs explicitly set on every public page - 28 pages covered.
JSON-LD structured data (SoftwareApplication) on every tool page.
Docs section expanded to 10 pages: SheetsAPI quickstart through TypeScript client, GKit getting-started through API keys.
GKit docs section with 5 pages: getting-started, accounts & SSO, dashboard, marketplace, API keys.

Fixed

Root layout alternates.canonical: "/" was propagating to every page - removed from layout and added explicit per-page canonicals.
Velite EISDIR error caused by bare / links in 4 MDX files - fixed with copyLinkedFiles: false in velite.config.ts.

v0.3.0 - 2026-06-23

Added

Cross-app auth architecture - Hub is the sole OAuth entry point for all GKit apps. /api/auth/delegated-token and /api/auth/provision endpoints for sub-apps.
@gkit/auth/verify package - verifySession, getDelegatedAccessToken, verifyApiKey for non-Next.js apps.
SheetsAPI worker migrated to Hub session verification; removed its own OAuth flow.
SheetsAPI dashboard uses shared .gkit.mreshank.com cookie instead of localStorage.
API key management: create, list, revoke. Keys use gkit_ prefix format; full key shown once at creation.
Dashboard sidebar with Overview, SheetsAPI, API keys, and Settings sections.

Fixed

Session-aware header avatar dropdown now shows email and links to Dashboard, API keys, Settings, and Sign Out.

v0.2.0 - 2026-06-22

Added

Auth.js v5 Google OAuth - sign in with Google, session persisted as encrypted JWT.
Cross-subdomain SSO: one sign-in works across all *.gkit.mreshank.com subdomains.
Dashboard page showing connected products.
Middleware protecting all /dashboard/* routes - redirects to sign-in when unauthenticated.
@gkit/auth shared package with authConfig and typed GKitSession.

Changed

SheetsAPI migrated from sheetsapi.mreshank.com to sheetsapi.gkit.mreshank.com.

v0.1.0 - 2026-06-01 · Beta launch

Added

GKit hub (gkit.mreshank.com) - monorepo with Turborepo + pnpm.
SheetsAPI - turn any Google Sheet into a REST API in 30 seconds. Supports GET/POST, search, sort, limit, offset, fields, format query params.
19 free developer tools: JSON formatter, CSV converter, JWT decoder, Base64, A1 notation, URL encoder, slug converter, regex tester, and more.
GKit Marketplace - curated directory of Google Workspace tools and integrations.
Blog, docs, compare pages, use-case pages, and legal pages.
GitHub Actions CI: typecheck + test + build on every push.

v0.5.0 - 2026-06-25

Cron expression explainer tool - parse any 5-field cron expression into plain English. Useful for Apps Script triggers, CI schedules, and background jobs.

20 free developer tools - full suite now includes JSON formatter, CSV converter, JWT decoder, Base64, A1 notation, URL encoder, regex tester, and more.

50+ blog posts covering SheetsAPI integrations for Python, PHP, Go, Ruby, Java, Kotlin, C#, TypeScript, Angular, Vue, Svelte, Flutter, and more.

Advanced filtering docs - search, sort, field projection, and pagination recipes.

Error handling docs - HTTP status codes, retry patterns, and best practices.

Marketplace expanded to 20 listings across 6 categories.

v0.4.0 - 2026-06-24

OG images on all 19 tool pages and both product pages.

Canonical URLs explicitly set on every public page - 28 pages covered.

JSON-LD structured data (SoftwareApplication) on every tool page.

Docs section expanded to 10 pages: SheetsAPI quickstart through TypeScript client, GKit getting-started through API keys.

GKit docs section with 5 pages: getting-started, accounts & SSO, dashboard, marketplace, API keys.

Root layout alternates.canonical: "/" was propagating to every page - removed from layout and added explicit per-page canonicals.

Velite EISDIR error caused by bare / links in 4 MDX files - fixed with copyLinkedFiles: false in velite.config.ts.

v0.3.0 - 2026-06-23

Cross-app auth architecture - Hub is the sole OAuth entry point for all GKit apps. /api/auth/delegated-token and /api/auth/provision endpoints for sub-apps.

@gkit/auth/verify package - verifySession, getDelegatedAccessToken, verifyApiKey for non-Next.js apps.

SheetsAPI worker migrated to Hub session verification; removed its own OAuth flow.

SheetsAPI dashboard uses shared .gkit.mreshank.com cookie instead of localStorage.

API key management: create, list, revoke. Keys use gkit_ prefix format; full key shown once at creation.

Dashboard sidebar with Overview, SheetsAPI, API keys, and Settings sections.

Session-aware header avatar dropdown now shows email and links to Dashboard, API keys, Settings, and Sign Out.

v0.2.0 - 2026-06-22

Auth.js v5 Google OAuth - sign in with Google, session persisted as encrypted JWT.

Cross-subdomain SSO: one sign-in works across all *.gkit.mreshank.com subdomains.

Dashboard page showing connected products.

Middleware protecting all /dashboard/* routes - redirects to sign-in when unauthenticated.

@gkit/auth shared package with authConfig and typed GKitSession.

SheetsAPI migrated from sheetsapi.mreshank.com to sheetsapi.gkit.mreshank.com.

v0.1.0 - 2026-06-01 · Beta launch

GKit hub (gkit.mreshank.com) - monorepo with Turborepo + pnpm.

SheetsAPI - turn any Google Sheet into a REST API in 30 seconds. Supports GET/POST, search, sort, limit, offset, fields, format query params.

19 free developer tools: JSON formatter, CSV converter, JWT decoder, Base64, A1 notation, URL encoder, slug converter, regex tester, and more.

GKit Marketplace - curated directory of Google Workspace tools and integrations.

Blog, docs, compare pages, use-case pages, and legal pages.

GitHub Actions CI: typecheck + test + build on every push.