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 — 31 machine-readable artifacts across 1 API, 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 35.8/100 (thin), with a separate agent-readiness read of 22/100 (agent aware). 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. Every facet and dimension name is a link: it opens that measurement's page on APIs.io, where the rating runs across the whole catalog — the exact checks that feed it, how every profiled provider distributes on it, and who is at the top of it.
Kin Score
How this is scored →scored 2026-09-08 · rubric v0.20.0
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</a>More shapes, themes and sizes → · Score as JSON · How badges work
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 13
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).
API Collection
OPEN COLLECTIONGusto Embedded Payroll Webhooks
OPEN COLLECTIONGusto Embedded Payroll BankAccounts API
OPEN COLLECTIONGusto Embedded Payroll BankAccounts Companies API
OPEN COLLECTIONGusto Embedded Payroll BankAccounts ContractorPayments API
OPEN COLLECTIONGusto Embedded Payroll BankAccounts Contractors API
OPEN COLLECTIONGusto Embedded Payroll BankAccounts Employees API
OPEN COLLECTIONGusto Embedded Payroll BankAccounts Flows API
OPEN COLLECTIONGusto Embedded Payroll BankAccounts Payrolls API
OPEN COLLECTIONGusto Embedded Payroll BankAccounts PaySchedules API
OPEN COLLECTIONGusto Embedded Payroll BankAccounts Reports API
OPEN COLLECTIONGusto Embedded Payroll BankAccounts Webhooks API
OPEN COLLECTIONGusto Embedded Payroll API
OPEN COLLECTIONScroll within the panel for all 13 ·
GraphQL 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 2
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 2
Status, limits, changes, and where to get help
Commercial 3
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
This is an independent, third-party profile of Gusto, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.
The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.
Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.
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you will get a person, not a form — we will tell you exactly which public URLs this profile was built from.