How AI is applied across API Evangelist and APIs.io. Read my AI disclosure →
API Evangelist API Evangelist
Discovery
Learnings
Guidance
Toolbox
Alignment
API Evangelist LLC
Discovery
Learnings
Guidance
Toolbox
Alignment
API Evangelist LLC

Need help?

Contact us
OnPay

OnPay Deductions API

The Deductions API from OnPay — 7 operation(s) for deductions.

Documentation Provider Profile APIs.io OpenAPI GitHub

OnPay Deductions API is one of 6 APIs that OnPay publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include Deductions. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, an API reference, and authentication docs.

This API exposes 12 operations across 7 paths, and defines 9 schemas. It is described by OpenAPI 3.2.0, at version 2.0.0.

Requests are made against a single base URL, https://onpaydev.com/v2.

12 operations 7 paths 9 schemas 1 DELETE4 GET3 PATCH4 POST

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.2.0
API Version
2.0.0
Base URL
https://api.onpay.com/v2
Authentication
OAuth 2.0, API Key
Resource Areas
1

Authentication & Security 2

OnPay Deductions API declares 2 security schemes for authenticating requests. It supports OAuth 2.0 (OAuth2) using the authorizationCode flow, exposing 6 scopes. An API key is passed in the header as Authorization (Bearer).

Paths & Operations 12

Across 7 paths, the API surfaces 12 operations — 1 DELETE, 4 GET, 3 PATCH, 4 POST. Each is listed below with its method, path, parameters, and response codes.

Deductions 12
GET
/employees/{employee_id}/deductions
Get employees by employee id deductions
getEmployeesByEmployeeIdDeductions 1 param → 200default
PATCH
/employees/{employee_id}/deductions/{deduction_id}
Update employees by employee id deductions by deduction id
patchEmployeesByEmployeeIdDeductionsByDeductionId 2 params body → 200default
POST
/employees/{employee_id}/deductions/{deduction_id}
Create employees by employee id deductions by deduction id
postEmployeesByEmployeeIdDeductionsByDeductionId 2 params body → 200
GET
/employees/{employee_id}/deductions/{deduction_id}/schedule
Get employees by employee id deductions by deduction id schedule
getEmployeesByEmployeeIdDeductionsByDeductionIdSchedule 2 params → 200
POST
/employees/{employee_id}/deductions/{deduction_id}/schedule
Create employees by employee id deductions by deduction id schedule
postEmployeesByEmployeeIdDeductionsByDeductionIdSchedule 2 params body → 200
GET
/company/deductions
Get company deductions
getCompanyDeductions → 200default
POST
/company/deductions
Create company deductions
postCompanyDeductions body → 200default
PATCH
/company/deductions/{deduction_id}
Update company deductions by deduction id
patchCompanyDeductionsByDeductionId 1 param body → 200default
DELETE
/company/deductions/{deduction_id}
Delete company deductions by deduction id
deleteCompanyDeductionsByDeductionId 1 param → 200default
GET
/company/deduction-groupings
Get company deduction groupings
getCompanyDeductionGroupings → 200default
POST
/company/deduction-groupings
Create company deduction groupings
postCompanyDeductionGroupings body → 200default
PATCH
/company/deduction-groupings/{id}
Update company deduction groupings by id
patchCompanyDeductionGroupingsById 1 param body → 200default

Schemas 9

The contract defines 9 schemas that model the data the API accepts and returns. The most detailed are EmployeeDeductionItemBatch (19 properties), EmployeeDeductionItem (14 properties), DeductionGroupingItem (7 properties), InsertSuccessful (2 properties). Each schema is shown below with its type and property counts.

DeductionIncludedIn401kReports
string
L For Standard Deductions: include as loan in 401k reports S report as safe harbor Y include in deferral amounts N exclude
DeleteSuccessful
object
1 property
ErrorBadRequest
object
2 properties
EmployeeDeductionItem
object
14 properties
DeductionGroupingItem
object
7 properties
InsertSuccessful
object
2 properties
PatchSuccessful
object
1 property
EmployeeDeductionItemBatch
object
19 properties
DeductionType
integer
1 Section 125 2 401K 3 403B 4 457 6 Roth 401K 7 Roth 403B 8 FSA 9 HSA 10 Simple IRA 21 Post-tax 22 Cash tips imputed 23 Union dues 24 Imputed 25 Union dues bas…

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

onpay-deductions-api-openapi.yml Raw ↑

Other APIs OnPay publishes across the network.

OnPay Company API
AE Profile APIs.io
OnPay Employees API
AE Profile APIs.io
OnPay Pay Runs API
AE Profile APIs.io
OnPay Reports API
AE Profile APIs.io
OnPay User API
AE Profile APIs.io
#Deductions
← Back to O APIs
API Details
ID
onpay:onpay-deductions-api
Base URL
https://api.onpay.com/v2
Docs
https://onpay.readme.io/reference/authorization
Provider
OnPay
APIs.io →  GitHub →
Explore more
All APIs Providers APIs.io Network
Work with this as data

Every API here is available over the API and to AI agents over MCP. APIs is not yet its own endpoint on the v1 API. Reach this content through network search and the tag graph, or the MCP server below.

Installs https://mcp.apievangelist.com/mcp in Claude, Cursor, VS Code and the rest — one button, every client.

MCP tools for apis
4 tools reach this content
  • search_api_evangelistSearch every content type across the network at once.
  • find_relatedThe shared-tag relevance graph — what else covers this.
  • get_tagEverything one tag labels, across all content types.
  • guide_topicPRO — a curated bundle for a topic: area, guidance, rules, papers, stories, services.
All tools & prompts
Call it yourself
curl for this page
Search the network for this 
curl "https://api.apievangelist.com/v1/search?q=onpay-deductions-api&limit=10"
Everything under a tag 
curl "https://api.apievangelist.com/v1/tags/onpay-deductions-api"

Discovery needs no key. Full bodies and the synthesis endpoints are Pro.

Get an API key

Free tier, no email required. Sign in with whichever identity you already have.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have. Your account

Where this information came from

This is an independent, third-party profile of OnPay Deductions API, 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.

info@apievangelist.com · Read the full data-sourcing policy →
On a security or compliance team? Put security in the subject line and you will get a person, not a form — we will tell you exactly which public URLs this profile was built from.