Need help with your APIs? I offer API discovery, governance & evangelism services. Explore services →
API Evangelist API Evangelist
Discovery
Learnings
Guidance
Toolbox
Alignment
API Evangelist LLC

Abacus Authentication API

OAuth 2.0 authentication operations

Abacus Authentication API is one of 3 APIs that Abacus publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

This API exposes 8 JSON Schema definitions.

Tagged areas include Authentication. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, and 8 JSON Schemas.

This API exposes 1 operation across 1 path, and defines 3 schemas. It is described by OpenAPI 3.0.3, at version 1.0.0.

Requests are made against a single base URL, https://api.abacus.com.

1 operations 1 paths 3 schemas 1 POST

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.0.3
API Version
1.0.0
Base URL
https://api.abacus.com
Authentication
OAuth 2.0
Resource Areas
1

Authentication & Security 1

Abacus Authentication API declares 1 security scheme for authenticating requests. It supports OAuth 2.0 (OAuth2) using the clientCredentials flow, exposing 3 scopes. By default, every request must be authenticated.

  • OAuth2 — OAuth 2.0 client credentials flow for API authentication

Paths & Operations 1

Across 1 path, the API surfaces 1 operation — 1 POST. Each is listed below with its method, path, parameters, and response codes.

Authentication 1

OAuth 2.0 authentication operations

POST
/oauth/token
Abacus Get OAuth Token
getOAuthToken body → 200401

Schemas 3

The contract defines 3 schemas that model the data the API accepts and returns. The most detailed are OAuthTokenRequest (3 properties), OAuthTokenResponse (3 properties), Error (2 properties). Each schema is shown below with its type and property counts.

OAuthTokenResponse
object
OAuth 2.0 access token response
3 properties
OAuthTokenRequest
object
OAuth 2.0 token request using client credentials
3 properties 3 required
Error
object
Error response
2 properties

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

abacus-authentication-api-openapi.yml Raw ↑

Other APIs Abacus publishes across the network.

Abacus Expenses API
Abacus Members API