AT&T SMS Messaging API
The SMS Messaging API from AT&T — 3 operation(s) for sms messaging.
AT&T SMS Messaging API is one of 14 APIs that AT&T publishes on the APIs.io network, described by a machine-readable OpenAPI specification.
Tagged areas include SMS Messaging. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, an API reference, authentication docs, and a getting-started guide.
This API exposes 3 operations across 3 paths, and defines 7 schemas. It is described by OpenAPI 3.0.3, at version 2.0.
Requests are made against a single base URL, https://api.att.com.
Metadata
The identity and technical contract details declared by the specification.
Authentication & Security 1
AT&T SMS Messaging API declares
1 security scheme
for authenticating requests.
It supports OAuth 2.0 (oauth2) using the authorizationCode flow, exposing 2 scopes.
oauth2— AT&T OAuth 2.0 with user consent via authorization code flow
Paths & Operations 3
Across 3 paths, the API surfaces 3 operations — 2 GET, 1 POST. Each is listed below with its method, path, parameters, and response codes.
Schemas 7
The contract defines 7 schemas that model the data the API accepts and returns. The most detailed are InboundSmsMessage (5 properties), DeliveryInfo (2 properties), SendSmsResponse (1 property), DeliveryInfoResponse (1 property). Each schema is shown below with its type and property counts.
Specification
The full machine-readable OpenAPI contract behind this narrative.
Source
More from AT&T 12
Other APIs AT&T publishes across the network.