Justworks Members API
Read employee, contractor, and member information from the Justworks Partner API. Provides access tomember profiles, employment history, pay history, custom-field values, and U.S. tax identifiers(SSN) for domestic members. This is the canonical workforce-truth surface a partner integratesagainst. Uses cursor pagination with a hard cap of 100 items per page.
Justworks Members API is one of 11 APIs that Justworks publishes on the APIs.io network, described by a machine-readable OpenAPI specification.
This API exposes 1 JSON Schema definition.
Tagged areas include HR, PEO, Members, and Employees. The published artifact set on APIs.io includes API documentation, an OpenAPI specification, a JSON-LD context, and 1 JSON Schema.
This API exposes 4 operations across 4 paths, and defines 5 schemas. It is described by OpenAPI 3.1.0, at version 2026-05-25.
Requests are made against a single base URL, https://public-api.justworks.com.
Metadata
The identity and technical contract details declared by the specification.
Authentication & Security 1
Justworks Members API declares
1 security scheme
for authenticating requests.
It supports OAuth 2.0 (OAuth2) using the authorizationCode flow, exposing 3 scopes.
By default, every request must be authenticated.
Paths & Operations 4
Across 4 paths, the API surfaces 4 operations — 4 GET. Each is listed below with its method, path, parameters, and response codes.
Read access to Justworks member records, custom fields, and tax IDs
Schemas 5
The contract defines 5 schemas that model the data the API accepts and returns. The most detailed are Member (27 properties), Address (6 properties), MemberName (5 properties), MemberList (2 properties). Each schema is shown below with its type and property counts.
Specification
The full machine-readable OpenAPI contract behind this narrative.
Source
More from Justworks 10
Other APIs Justworks publishes across the network.