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AT&T

AT&T SMS Messaging API

The SMS Messaging API from AT&T — 3 operation(s) for sms messaging.

Documentation Provider Profile APIs.io OpenAPI GitHub

AT&T SMS Messaging API is one of 28 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.

3 operations 3 paths 7 schemas 2 GET1 POST

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.0.3
API Version
2.0
Base URL
https://api.att.com
Authentication
OAuth 2.0
Contact
https://developer.att.com/support
Terms of Service
View terms
Resource Areas
1

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.

SMS Messaging 3
POST
/sms/v3/messaging/outbox
AT&T Send SMS Message
sendSms body → 201400401403429
GET
/sms/v3/messaging/outbox/{messageId}
AT&T Get SMS Delivery Status
getSmsDeliveryStatus 1 param → 200404401
GET
/sms/v3/messaging/inbox/{registrationId}
AT&T Get Inbound SMS Messages
getInboundSms 1 param → 200401404

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.

InboundSmsResponse
object
1 property
InboundSmsMessage
object
5 properties
ErrorResponse
object
1 property
SendSmsRequest
object
1 property 1 required
DeliveryInfo
object
2 properties
DeliveryInfoResponse
object
1 property
SendSmsResponse
object
1 property

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

att-sms-messaging-api-openapi.yml Raw ↑

Other APIs AT&T publishes across the network.

AT&T OAuth 2.0 API
AE Profile APIs.io
AT&T Alliance Wireline APIs
AE Profile APIs.io
AT&T Authentication API
AE Profile APIs.io
AT&T Balance Management API
AE Profile APIs.io
AT&T Device Management API
AE Profile APIs.io
AT&T Geographic Sites API
AE Profile APIs.io
AT&T Inbox Management API
AE Profile APIs.io
AT&T Messages API
AE Profile APIs.io
AT&T Number Management API
AE Profile APIs.io
AT&T Porting API
AE Profile APIs.io
AT&T Product Orders API
AE Profile APIs.io
AT&T Service Management API
AE Profile APIs.io
#SMS Messaging
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API Details
ID
att:att-sms-messaging-api
Base URL
https://api.att.com
Docs
https://developer.att.com/sms
Provider
AT&T
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