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401GO Companies & Plans API

The Companies & Plans API from 401GO — 6 operation(s) for companies & plans.

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

Tagged areas include Companies & Plans. 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 6 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 6 paths 0 schemas 4 GET1 POST1 PUT

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 Companies & Plans 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 6 paths, the API surfaces 6 operations — 4 GET, 1 POST, 1 PUT. Each is listed below with its method, path, parameters, and response codes.

Companies & Plans 6
GET
/companies/
Retrieve a list of companies that the bearer token has access to
companies_list 2 params → 200401403
GET
/companies/{company_id}/investment-options/
Get a list of investment options available for a given company.
companies_investment_options_list 3 params → 200401403
GET
/companies/{company_id}/matches/
companies_matches_retrieve 1 param → 200401403
GET
/companies/{company_id}/plan-provisions/
Retrieve plan provisions for a company. Returns detailed configuration settings for the 401(k) plan associated with the company. This includes eligibility requirements, vesting schedules, contributio…
companies_plan_provisions_retrieve 1 param → 200404401403
POST
/plan-setup/
Creates a new company and 401(k) plan. Returns an objectid identifying the new company/plan. Use it as the path parameter for subsequent PUT/PATCH requests to update the plan. Fields requiring IDs fr…
plan_setup_create body → 200400401403
PUT
/plan-setup/{company_id}/
Updates an existing 401(k) plan. The {id} path parameter is the objectid returned from the POST response. Partial updates (PATCH) will not work. Endpoint currently only supports full replacement (PUT…
plan_setup_update 1 param body → 200400401403

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

401go-companies-plans-api-openapi.yml Raw ↑

Other APIs 401GO publishes across the network.

401GO Affiliates & Firms API
401GO Beneficiaries API
401GO Contributions & Payroll 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 Companies & Plans 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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