Gusto
A cloud-based payroll, benefits, and human resources platform designed for small and medium-sized businesses. Gusto Embedded enables platforms to integrate payroll, tax filing, and HR workflows directly into their products via a REST API, React SDK, and webhooks.
Limited machine-readable signal and partial portal coverage — documentation a human can read, but little a machine or agent can consume without scraping.
API Evangelist profiles Gusto the way a machine reads it — 20 machine-readable artifacts across 12 APIs, pulled from the provider's own public surface and indexed so a developer, an analyst, or an AI agent can evaluate it against every other provider on the network.
Every provider in the network is reduced to the same set of machine-readable artifacts — OpenAPI contracts, event specifications, GraphQL schemas, runnable collections, pricing and rate-limit signals, security posture, OAuth scopes, and the agent surfaces (MCP servers and skills) that let software drive the API on its own. We profile them because the interface is the part of a company you can actually inspect: it is a truer signal of what a provider does than any marketing page. From those artifacts we compute the Kin Score — Gusto scores 43.4/100 (thin), with a separate agent-readiness read of 47/100 (agent ready). The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.
Kin Score
This is the API Evangelist rating — a single, repeatable read computed from the artifacts on this page. Green fill is points earned; the red track is points possible, so every bar shows earned-versus-possible at a glance.
Kin Score
How this is scored →scored 2026-07-27 · rubric v0.5
How we profile Gusto
Each block below is one kind of artifact we hold for Gusto. For each we say what it is and why it earns a place in the profile, then list every one we've indexed — capped at two rows, scroll within the panel for the rest.
APIs 12
Each API is captured as its own OpenAPI definition — every operation, parameter, and response. This is the single most useful machine-readable description of what an API does, and it's what lets us score, lint, mock, and generate against it without asking the provider for anything.
Individual APIs this provider publishes, each with its own machine-readable definition.
Gusto Embedded Payroll API
The Gusto Embedded Payroll API enables platforms to build and embed modern payroll, benefits, and HR tooling into their own products. The API exposes endpoints for company onboa...
Gusto Embedded React SDK
The Gusto Embedded React SDK provides pre-built UI flows and components that platforms can drop into their own React applications to surface Gusto Embedded Payroll experiences (...
Gusto BankAccounts API
The BankAccounts API from Gusto — 3 operation(s) for bankaccounts.
Gusto Companies API
The Companies API from Gusto — 4 operation(s) for companies.
Gusto ContractorPayments API
The ContractorPayments API from Gusto — 2 operation(s) for contractorpayments.
Gusto Contractors API
The Contractors API from Gusto — 2 operation(s) for contractors.
Gusto Employees API
The Employees API from Gusto — 1 operation(s) for employees.
Gusto Flows API
The Flows API from Gusto — 1 operation(s) for flows.
Gusto Payrolls API
The Payrolls API from Gusto — 3 operation(s) for payrolls.
Gusto PaySchedules API
The PaySchedules API from Gusto — 2 operation(s) for payschedules.
Gusto Reports API
The Reports API from Gusto — 2 operation(s) for reports.
Gusto Webhooks API
The Webhooks API from Gusto — 1 operation(s) for webhooks.
Scroll within the panel for all 12 ·
Open Collections 2
Open, tool-agnostic collections carry the same runnable value as Postman without locking you to one client — the portable, forkable form of the same exercise.
Open, tool-agnostic API collections (OpenAPI-derived and Bruno).
Gusto Embedded Payroll Webhooks
OPEN COLLECTIONGusto Embedded Payroll API
OPEN COLLECTIONGraphQL 1
Where a provider ships GraphQL, the schema is the contract. We profile it alongside the REST surface so the whole interface is legible in one place.
GraphQL schemas published by this provider.
Gusto GraphQL Schema
This document describes the conceptual GraphQL schema for the Gusto Embedded Payroll API. Gusto provides a REST API; this schema represents the domain model as a GraphQL type sy...
GRAPHQLSecurity Posture 4
Authentication, domain security, vulnerability disclosure, and trust-center signals — the evidence that a provider takes security seriously enough to document it. We profile it because you can't govern what you can't see.
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Agentic Access 1
An x-agentic-access contract marks which operations are safe for an agent to run on its own and which need a human in the loop. It is the difference between an API an agent can use and one it can use safely.
Recommended x-agentic-access execution contracts for AI agents.
Resources
Every other property we hold for Gusto — documentation, portals, status pages, policies, and corporate surface — grouped by the job it does, following the integrator's arc from getting started to running in production.
Get Started 3
Portal, sign-up, and the first successful call
Documentation 1
Reference material describing how the API behaves
Agent Surfaces 2
MCP servers, agent skills, and machine-readable catalogs
Build 6
SDKs, sample code, and the tooling you integrate with
Access & Security 4
Authentication, authorization, and security posture
Operate 1
Status, limits, changes, and where to get help
Commercial 2
Pricing, plans, and the legal terms of use
Company 3
The organization behind the API
← All providers · Data indexed from github.com/api-evangelist/gusto · machine-readable index on apis.io