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API Evangelist LLC

AT&T

AT&T is a multinational telecommunications holding company providing wireless and wireline telecommunications services, broadband, and digital entertainment to consumers and businesses worldwide. AT&T offers a suite of developer APIs spanning messaging, speech, mobile virtual network operations, business voice, wholesale service qualification, enterprise wireline ordering, and mobility management, enabling developers and enterprise partners to integrate AT&T network capabilities into applications and systems.

agent ready

Real signal across most facets with visible, nameable gaps — the contract exists but is thin, or the portal is good while governance and commercial terms are absent.

Kin Score

API Evangelist profiles AT&T the way a machine reads it — 138 machine-readable artifacts across 14 APIs, pulled from the provider's own public surface and indexed so a developer, an analyst, or an AI agent can evaluate it against every other provider on the network.

Every provider in the network is reduced to the same set of machine-readable artifacts — OpenAPI contracts, event specifications, GraphQL schemas, runnable collections, pricing and rate-limit signals, security posture, OAuth scopes, and the agent surfaces (MCP servers and skills) that let software drive the API on its own. We profile them because the interface is the part of a company you can actually inspect: it is a truer signal of what a provider does than any marketing page. From those artifacts we compute the Kin Score — AT&T scores 57.8/100 (developing), with a separate agent-readiness read of 48/100 (agent ready). The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.

Kin Score

This is the API Evangelist rating — a single, repeatable read computed from the artifacts on this page. Green fill is points earned; the red track is points possible, so every bar shows earned-versus-possible at a glance.

Kin Score Kin Score How this is scored →
scored 2026-07-23 · rubric v0.5
Composite quality — 57.8/100 · developing
Contract Quality 17.4 / 25
Developer Ergonomics 6.5 / 20
Commercial Clarity 10.0 / 20
Operational Transparency 3.4 / 13
Governance 10.4 / 12
Discoverability 10.0 / 10
Agent readiness — 48/100 · agent ready
Machine-Readable Contract 18 / 18
Agentic Access Contract 15 / 15
MCP Server 0 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 7 / 7
Typed Event Surface 0 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3

How we profile AT&T

Each block below is one kind of artifact we hold for AT&T. For each we say what it is and why it earns a place in the profile, then list every one we've indexed — capped at two rows, scroll within the panel for the rest.

APIs 14

Each API is captured as its own OpenAPI definition — every operation, parameter, and response. This is the single most useful machine-readable description of what an API does, and it's what lets us score, lint, mock, and generate against it without asking the provider for anything.

Individual APIs this provider publishes, each with its own machine-readable definition.

AT&T OAuth 2.0 API

AT&T OAuth 2.0 authentication API providing access tokens for all AT&T REST APIs. Supports Authorization Code, Client Credentials, and Refresh Token grant types. Scopes include ...

AT&T Alliance Wireline APIs

Wireline business APIs enabling partners to expedite quoting, service qualification, and ordering of AT&T wireline products. Includes Quick Quote, Product Catalog, Service Quali...

AT&T Authentication API

The Authentication API from AT&T — 1 operation(s) for authentication.

AT&T Balance Management API

The Balance Management API from AT&T — 1 operation(s) for balance management.

AT&T Device Management API

The Device Management API from AT&T — 2 operation(s) for device management.

AT&T Geographic Sites API

The Geographic Sites API from AT&T — 1 operation(s) for geographic sites.

AT&T Inbox Management API

The Inbox Management API from AT&T — 2 operation(s) for inbox management.

AT&T Messages API

The Messages API from AT&T — 2 operation(s) for messages.

AT&T Number Management API

The Number Management API from AT&T — 2 operation(s) for number management.

AT&T Porting API

The Porting API from AT&T — 3 operation(s) for porting.

AT&T Product Orders API

The Product Orders API from AT&T — 1 operation(s) for product orders.

AT&T Service Management API

The Service Management API from AT&T — 1 operation(s) for service management.

AT&T SMS Messaging API

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

AT&T Subscriber Management API

The Subscriber Management API from AT&T — 1 operation(s) for subscriber management.

Scroll within the panel for all 14 ·

Pricing Plans 1

Pricing is part of the interface. Machine-readable plans tell you what a tier costs and includes before you commit — one of the six things the Kin Score reads for commercial clarity.

Published pricing tiers and plan structures.

Rate Limits 1

Rate limits are the difference between a demo that works and a production integration that doesn't fall over. Publishing them is an operational-transparency signal — and a hard requirement for any agent that plans its own throughput.

Documented rate limits and quota policies.

At And T Rate Limits

1 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals let a buyer model the financial operations of an API before it's live. We profile them for the same reason we profile pricing: the money is part of the contract.

Cost, billing, and metering signals for API financial operations.

Features 3

The notable capabilities this provider advertises, captured as structured features so they can be searched and compared instead of read one landing page at a time.

Notable capabilities this provider offers.

AT&T: API access via partner / B2B contracts only
No public API pricing published — contact enterprise sales
AT&T Business APIs (Network APIs, IoT Connectivity, etc.) are sold via partner program with custom contracts.

Semantic Vocabularies 3

JSON-LD contexts give the data shared meaning across APIs. We profile them because semantics are what let a machine reconcile 'customer' here with 'customer' somewhere else.

JSON-LD contexts and semantic vocabularies used across these APIs.

At And T In App Messaging Api Context

9 classes · 28 properties

JSON-LD

At And T Mvnx Api Context

18 classes · 30 properties

JSON-LD

At And T Sms Api Context

8 classes · 27 properties

JSON-LD

Spectral Rules 2

Governance rulesets we run against this provider's specs — the automated checks behind parts of the score. Profiling them makes the quality bar explicit and re-runnable, not a matter of opinion.

AT&T API Rules

5 rules · 3 warnings

SPECTRAL

AT&T API Rules

44 rules · 16 errors · 23 warnings

SPECTRAL

JSON Schema 34

Standalone JSON Schema definitions describe the data models behind the API. We profile them so the shapes are validatable on their own — useful long after a single request is forgotten.

Standalone JSON Schema definitions for this provider's data models.

DeltaResponse

1 properties

JSON SCHEMA

MessageDetail

1 properties

JSON SCHEMA

MessageIndexResponse

1 properties

JSON SCHEMA

MessageListResponse

1 properties

JSON SCHEMA

MessageSummary

8 properties

JSON SCHEMA

SendMessageRequest

1 properties

JSON SCHEMA

SendMessageResponse

2 properties

JSON SCHEMA

UpdateMessageRequest

1 properties

JSON SCHEMA

UpdateMessageResponse

1 properties

JSON SCHEMA

CancelPortabilityOrder

2 properties

JSON SCHEMA

GeographicSite

4 properties

JSON SCHEMA

PortabilityOrderCancellation

3 properties

JSON SCHEMA

PortabilityOrderCreate

1 properties

JSON SCHEMA

PortabilityOrder

4 properties

JSON SCHEMA

PortabilityOrderUpdate

1 properties

JSON SCHEMA

ProductOrderCreate

2 properties

JSON SCHEMA

ProductOrder

4 properties

JSON SCHEMA

Product

4 properties

JSON SCHEMA

ResourceReservationCreate

1 properties

JSON SCHEMA

ResourceReservation

4 properties

JSON SCHEMA

ResourceReservationUpdate

1 properties

JSON SCHEMA

Resource

5 properties

JSON SCHEMA

ResourceUpdate

1 properties

JSON SCHEMA

Service

4 properties

JSON SCHEMA

TopupBalanceCreate

3 properties

JSON SCHEMA

TopupBalance

3 properties

JSON SCHEMA

DeliveryInfoResponse

1 properties

JSON SCHEMA

DeliveryInfo

2 properties

JSON SCHEMA

InboundSmsMessage

5 properties

JSON SCHEMA

InboundSmsResponse

1 properties

JSON SCHEMA

SendSmsRequest

1 properties

JSON SCHEMA

SendSmsResponse

1 properties

JSON SCHEMA

TokenRequest

6 properties

JSON SCHEMA

TokenResponse

4 properties

JSON SCHEMA

Scroll within the panel for all 34 ·

JSON Structure 34

JSON Structure captures the data shapes in a form built for tooling — a complement to JSON Schema that keeps the model machine-legible.

JSON Structure definitions describing this provider's data shapes.

Mvnx Api Geographic Site Structure

4 properties

JSON STRUCTURE

Mvnx Api Portability Order Structure

4 properties

JSON STRUCTURE

Mvnx Api Product Order Create Structure

2 properties

JSON STRUCTURE

Mvnx Api Product Order Structure

4 properties

JSON STRUCTURE

Mvnx Api Product Structure

4 properties

JSON STRUCTURE

Mvnx Api Resource Reservation Structure

4 properties

JSON STRUCTURE

Mvnx Api Resource Structure

5 properties

JSON STRUCTURE

Mvnx Api Resource Update Structure

1 properties

JSON STRUCTURE

Mvnx Api Service Structure

4 properties

JSON STRUCTURE

Mvnx Api Topup Balance Create Structure

3 properties

JSON STRUCTURE

Mvnx Api Topup Balance Structure

3 properties

JSON STRUCTURE

Sms Api Delivery Info Response Structure

1 properties

JSON STRUCTURE

Sms Api Delivery Info Structure

2 properties

JSON STRUCTURE

Sms Api Inbound Sms Message Structure

5 properties

JSON STRUCTURE

Sms Api Inbound Sms Response Structure

1 properties

JSON STRUCTURE

Sms Api Send Sms Request Structure

1 properties

JSON STRUCTURE

Sms Api Send Sms Response Structure

1 properties

JSON STRUCTURE

Sms Api Token Request Structure

6 properties

JSON STRUCTURE

Sms Api Token Response Structure

4 properties

JSON STRUCTURE

Scroll within the panel for all 34 ·

Examples 34

Real request and response payloads are what turn a spec from abstract into obvious — and they're one of the twelve things an agent needs to call an API correctly on the first try.

Example request and response payloads for these APIs.

Mvnx Api Product Example

4 fields

EXAMPLE

Mvnx Api Resource Example

5 fields

EXAMPLE

Mvnx Api Service Example

4 fields

EXAMPLE

Scroll within the panel for all 34 ·

Security Posture 2

Authentication, domain security, vulnerability disclosure, and trust-center signals — the evidence that a provider takes security seriously enough to document it. We profile it because you can't govern what you can't see.

Authentication, domain security, vulnerability disclosure, and trust-center signals.

At And T Authentication

apiKey/oauth2 · 3 schemes

SECURITY

At And T Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Scopes 1

OAuth scopes are the vocabulary of least-privilege access. Profiling them shows exactly what an integration — or an agent acting on a user's behalf — is allowed to do.

OAuth scopes governing access to this provider's APIs.

At And T Scopes

8 scopes · authorizationCode/clientCredentials

8 scopes

SCOPES

Agentic Access 1

An x-agentic-access contract marks which operations are safe for an agent to run on its own and which need a human in the loop. It is the difference between an API an agent can use and one it can use safely.

Recommended x-agentic-access execution contracts for AI agents.

At And T Agentic Access

26 operations · 14 acting · 1 human-in-the-loop

26 operations · 14 acting

AGENTIC

Use Cases 4

What developers actually build with this provider — captured so the catalogue answers 'what is this for', not just 'what does this expose'.

What developers build with this provider.

SMS Alerts and Notifications

Send security verification codes, appointment reminders, promotional offers, and customer feedback requests via SMS short code.

In-App Messaging Integration

Embed MMS and SMS messaging directly into mobile applications with full inbox management capabilities.

Mobile Virtual Network Operations

Launch and operate MVNO services using AT&T's network with automated subscriber onboarding, porting, and lifecycle management.

Enterprise Wireline Ordering

Automate service qualification, quoting, and order submission for enterprise connectivity services.

Integrations 3

Pre-built integrations with other platforms tell you where this provider already fits in a stack.

Pre-built integrations with other platforms and tools.

IBM Worklight

AT&T API Platform Adapters for IBM Worklight mobile development platform.

Salesforce Platform

AT&T Toolkit for Salesforce enabling speech and messaging API integration in Salesforce apps.

TM Forum APIs

MVNX APIs align with TM Forum Open API standards including TMF 622, 637, 639, 640, 654, 674, 689, 702, 716, and 761.

Resources

Every other property we hold for AT&T — documentation, portals, status pages, policies, and corporate surface — grouped by the job it does, following the integrator's arc from getting started to running in production.

Get Started 3

Portal, sign-up, and the first successful call

Documentation 1

Reference material describing how the API behaves

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

Design & Contract 2

Pagination, idempotency, versioning, errors, and events

Build 2

SDKs, sample code, and the tooling you integrate with

Operate 2

Status, limits, changes, and where to get help

Commercial 2

Pricing, plans, and the legal terms of use

Company 2

The organization behind the API

← All providers · Data indexed from github.com/api-evangelist/at-and-t · machine-readable index on apis.io