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Gusto's API Exists. Most Businesses Still Need Someone to Build With It.

Gusto publishes a developer API and documentation for reading and writing payroll, employee, and HR data, built mainly for Gusto Embedded, its partner program for software platforms that embed payroll directly into their own product. For everyone else, that API is the raw material, not a finished integration: turning it into a working sync between Gusto and your scheduling tool, HRIS, or Slack workspace is the part we build.

What actually connects to Gusto today

A handful of major platforms have a native, pre-built connection with Gusto that you turn on from a settings page. Most tools don't. If your business tracks hours in a scheduling app, keeps employee records in a separate HRIS like BambooHR, or wants new-hire data reaching Slack and your project tools automatically, none of that exists out of the box.

That gap is where Gusto's API comes in: reading employee, job, and payroll data out of Gusto, or writing time and new-hire data into it, through code instead of a screen. Where a tool on the other end has no API of its own, an older scheduling system, a vendor portal that's UI-only, we build the connection through browser automation instead, since Gusto's side being API-accessible doesn't help much if the other half of the sync isn't.

What We Build on Top of Gusto's API

Scheduling and time tracking, synced before payroll runs

Gusto handles time tracking for hourly staff reasonably well on its own, but plenty of businesses run a separate scheduling tool for shift planning. We sync hours from that tool into Gusto automatically ahead of each pay run, so nobody's exporting a spreadsheet and reconciling it by hand the night before payroll.

BambooHR and Gusto, kept from drifting apart

When HR records live in BambooHR but payroll runs through Gusto, the two need to agree on who's employed, at what pay rate, as of when. We build the sync that keeps both systems current automatically instead of someone updating each one separately and hoping they match.

What's still manual between Gusto and the rest of your stack?

Hours, new hires, HR data, Slack notifications, whatever it is, tell us what's getting typed in twice right now.

Let's talk

Gusto running payroll but everything around it still disconnected?

Tell us which tool isn't talking to Gusto yet, your scheduler, your HRIS, Slack, whatever holds up a pay run right now. We'll look at what Gusto's API actually exposes and map out what's buildable. And if Gusto isn't where your real bottleneck lives, that's fine too, we build automation on whatever tool is actually slowing your team down.

Let's talk

Frequently Asked Questions

Does Gusto have an API?+
Yes. Gusto publishes a developer API and documentation, built primarily for Gusto Embedded, its partner program for software platforms that want to offer payroll inside their own product. A sandbox is available for testing, but production access for most use cases goes through that partner approval process rather than a self-serve API key.
Can Gusto integrate with Slack?+
There's no official Gusto-to-Slack connector. What businesses usually want, a Slack message when someone's hired, when time off is approved, when a pay run completes, is buildable through Gusto's API and Slack's own API, just not something you turn on from a settings menu in either tool.
Does Gusto integrate with BambooHR?+
Not natively. Some businesses run both, Gusto for payroll, BambooHR for broader HR records, and keep them in sync manually, which is exactly the kind of two-way sync we build so the two systems stop drifting apart from each other.
Does Gusto have built-in employee scheduling?+
Gusto handles time tracking for hourly employees, clocking in and out, but it isn't a shift-scheduling tool. Businesses that need real shift planning usually run a separate scheduling app and need those hours flowing into Gusto automatically before each pay run, rather than getting re-entered by hand.
Is there an MCP server for Gusto?+
Not an official one from Gusto itself. Since Gusto's API already exposes payroll and employee data, wrapping it in an MCP server so an AI agent can query or act on that data is a straightforward build on top of what already exists, not something that requires Gusto to ship it first.

Let's talk

Tell us the one thing your team does manually that eats up time. We read every message and reply within a day.