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401GO Contributions & Payroll API

The Contributions & Payroll API from 401GO — 5 operation(s) for contributions & payroll.

401GO Contributions & Payroll API is one of 10 APIs that 401GO publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include Contributions & Payroll. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, an API reference, a getting-started guide, and authentication docs.

This API exposes 6 operations across 5 paths. It is described by OpenAPI 3.2.0, at version 1.0.0.

Requests are made against a single base URL, https://app.401go.com/api.

6 operations 5 paths 0 schemas 4 GET2 POST

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.2.0
API Version
1.0.0
Base URL
https://app.401go.com/api
Authentication
API Key, HTTP Bearer
Resource Areas
1

Authentication & Security 2

401GO Contributions & Payroll API declares 2 security schemes for authenticating requests. An API key is passed in the header as Authorization (knoxApiToken). It accepts HTTP bearer tokens (oauth2).

  • knoxApiToken — Token-based authentication with required prefix "Token"
  • oauth2 — OAuth 2.0 Bearer based with an existing token. Enter a token retrieved via the regular OAuth flow elsewhere.

Paths & Operations 6

Across 5 paths, the API surfaces 6 operations — 4 GET, 2 POST. Each is listed below with its method, path, parameters, and response codes.

Contributions & Payroll 6
POST
/companies/{company_id}/submit-payroll/
Submit payroll for a company.
companies_submit_payroll_create 2 params body → 200400401403
GET
/participants/{participant_id}/deferrals/
Get deferrals for a participant.
participants_deferrals_retrieve 1 param → 200401403
POST
/participants/{participant_id}/deferrals/
Update deferrals for a participant. Submitted deferrals may not immediately become active due to eligibility, maxing out for the year, or plan deferral change frequency rules.
participants_deferrals_create 1 param body → 200400401403
GET
/participants/{participant_id}/matches/
participants_matches_retrieve 1 param → 200401403
GET
/participants/{participant_id}/payroll-lines/
Get the payroll lines for a participant.
participants_payroll_lines_list 3 params → 200401403
GET
/participants/{participant_id}/totals/
Returns year-to-date contribution totals, account balances, income, loans, and applicable annual contribution limits. Includes YTD totals for: - Pre-tax contributions - Post-tax contributions - Compa…
participants_totals_retrieve 1 param → 200401403

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

401go-contributions-payroll-api-openapi.yml Raw ↑

Other APIs 401GO publishes across the network.

401GO Affiliates & Firms API
401GO Beneficiaries API
401GO Companies & Plans API
401GO Documents API
401GO Investments & Portfolios API
401GO Money Movement API
401GO Notifications API
401GO Participants API
401GO Retirement Planning API
Where this information came from

This is an independent, third-party profile of 401GO Contributions & Payroll 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.

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