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Optum Eligibility Transactions API

Retrieve previously processed real-time eligibility transactions. Use these endpoints to list transactions, filter by status, date range, patient details, or correlation metadata, and fetch a single transaction record by id for audit, troubleshooting, and downstream workflows.

Optum Eligibility Transactions API is one of 166 APIs that Optum publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

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

This API exposes 2 operations across 2 paths, and defines 2 schemas. It is described by OpenAPI 3.2.0, at version v0.2.0.

Requests are made against 2 base URLs: https://sandbox-apigw.optum.com, https://apigw.optum.com.

2 operations 2 paths 2 schemas 2 GET

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.2.0
API Version
v0.2.0
Base URL
https://apigw.optum.com/medicalnetwork/
Authentication
OAuth 2.0
Resource Areas
1

Authentication & Security 1

Optum Eligibility Transactions API declares 1 security scheme for authenticating requests. It supports OAuth 2.0 (oAuth) using the clientCredentials flow, exposing 5 scopes.

  • oAuth — This API uses OAuth 2 with the clientcredentials grant flow. [More info](https://api.example.com/docs/auth)

Paths & Operations 2

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

Eligibility Transactions 2

Retrieve previously processed real-time eligibility transactions. Use these endpoints to list transactions, filter by status, date range, patient details, or correlation metadata,…

GET
/rcm/eligibility/v1/transactions
Find all eligibility transactions
17 params → 2004014035XX
GET
/rcm/eligibility/v1/transactions/{id}
Find eligibility transaction by ID
2 params → 2004014034044225XX

Schemas 2

The contract defines 2 schemas that model the data the API accepts and returns. The most detailed is Transaction (13 properties). Each schema is shown below with its type and property counts.

Error
array
The base object model for errors returned from the workflow
Transaction
object
The base object model for the /transactions endpoints and the canonical model for Enhanced Eligibility
13 properties

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

optum-eligibility-transactions-api-openapi.yml Raw ↑

Other APIs Optum publishes across the network.

Optum Real (Medical) API
Optum Interoperability APIs (CMS Patient Access)
Optum Ambulance Fee Schedule APIs API
Optum Anesthesia Fee APIs API
Optum APC Calculator APIs API
Optum APC Cross Codes APIs API
Optum Apip API
Optum Application.wadl API
Optum Attachment API
Optum Attachment Document API
Optum Attachment Status API
Optum Attachment Submission API
Where this information came from

This is an independent, third-party profile of Optum Eligibility Transactions 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.

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