Best Google Business Profile Posting API in 2026

If you're building a tool for local businesses, agencies, or multi-location brands, posting to Google Business Profile through an API is one of those features customers ask for constantly. The problem is that Google's own Business Profile API is gated behind an allowlist request, has its own OAuth setup, and models posts as "local posts" with separate shapes for updates, events, and offers.

A good Google Business Profile posting API hides all of that. You send one request, it publishes to the right location and shows up on Search and Maps. Updates, events, offers, call-to-action buttons, photos, and scheduling, all behind a single endpoint.

I looked at the main options and compared them on what matters: cost per post, whether they actually support Google Business Profile, and how much of the local-post model they expose.

PostPeer

PostPeer's Google Business Profile posting API is built so you never touch Google's Business Profile API directly. PostPeer handles the allowlist-approved app, OAuth, and token refreshes. You connect one integration per location the user manages, then publish with a single call.

It supports the full local-post model: standard updates, event posts (with start/end dates and times), and offer posts (coupon code, redemption URL, terms). You can attach a call-to-action button like Book, Order, Learn more, or Sign up, and add photos. The same /v1/posts endpoint you use for every other platform works here too, so cross-posting a promo to Google Business, Facebook, and Instagram at once is one request.

{
	"content": "This weekend only: 20% off all detailing packages.",
	"platforms": [
		{
			"platform": "googlebusiness",
			"accountId": "your-location-id",
			"platformSpecificData": {
				"topicType": "OFFER",
				"offerCouponCode": "SHINE20",
				"callToActionType": "GET_OFFER"
			}
		}
	],
	"publishNow": true
}

Pricing is credit-based and works out to about $8.50 per 1,000 posts, with 20 free credits to start and no credit card required. Accounts (locations) are unlimited on every plan.

Ayrshare

Ayrshare supports Google Business Profile as part of its broader social API. It's the most enterprise-oriented option and is battle-tested, but pricing starts high (monthly plans in the hundreds) and connected profiles are capped per plan. If you're at scale and already standardized on Ayrshare, it does the job; for most builders it's more than you need to post to Google Business.

Zernio (formerly Late)

Zernio covers a wide range of platforms and includes Google Business Profile. Coverage is its strength, but per-post cost runs much higher than PostPeer and the local-post specifics (offers, events, CTAs) are more limited in what they expose.

Upload-Post

Upload-Post offers flat monthly posting with Google Business support on some tiers. It's simple, but connected accounts are limited by plan and the local-post model is thinner, so event and offer posts are harder to build.

Quick Comparison

The Verdict

For most developers, PostPeer is the sweet spot for Google Business Profile posting. The per-post cost is the lowest, locations are unlimited on every plan including free, and it exposes the full local-post model (updates, events, offers, CTA buttons) instead of just plain text. The free tier lets you connect a location and test everything before committing.

If you're already an Ayrshare customer at enterprise scale, staying put is reasonable. For everyone else building agency tools, local-marketing SaaS, or AI agents that manage business listings, start with PostPeer's free tier. You can also try the free Google Business post scheduler first if you want to see it work without writing any code, then read the step-by-step API guide when you're ready to integrate.