Justworks Deductions API
Manage employee deductions — list deduction types, create one-time and recurring deductions,update existing deductions, and cancel deductions in bulk. The primary write surface of theJustworks Partner API. Each item carries a partner-supplied operation_id for idempotency.
Justworks Deductions 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 Deductions, Payroll, and PEO. The published artifact set on APIs.io includes API documentation, an OpenAPI specification, and 1 JSON Schema.
This API exposes 4 operations across 2 paths, and defines 4 schemas. It is described by OpenAPI 3.2.0, 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 Deductions 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 2 paths, the API surfaces 4 operations — 1 GET, 1 PATCH, 1 POST, 1 PUT. Each is listed below with its method, path, parameters, and response codes.
List, create, update, and cancel employee deductions
Schemas 4
The contract defines 4 schemas that model the data the API accepts and returns. The most detailed are Deduction (10 properties), DeductionCreate (10 properties), DeductionUpdate (9 properties), DeductionWriteResult (1 property). 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.
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