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Twilio A2p API

The A2p API from Twilio — 5 operation(s) for a2p.

Twilio A2p API is one of 115 APIs that Twilio publishes on the APIs.io network, described by a machine-readable OpenAPI specification and an AsyncAPI event-driven specification.

Tagged areas include A2P. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, pricing, and an AsyncAPI specification.

This API exposes 8 operations across 5 paths, and defines 11 schemas. It is described by OpenAPI 3.2.0, at version 1.52.0.

Requests are made against a single base URL, https://messaging.twilio.com.

8 operations 5 paths 11 schemas 4 GET4 POST

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.2.0
API Version
1.52.0
Server
https://messaging.twilio.com
Authentication
HTTP Basic
License
Terms of Service
Resource Areas
1

Authentication & Security 1

Twilio A2p API declares 1 security scheme for authenticating requests. It accepts HTTP basic authentication (accountSid_authToken).

Paths & Operations 8

Across 5 paths, the API surfaces 8 operations — 4 GET, 4 POST. Each is listed below with its method, path, parameters, and response codes.

A2p 8
POST
/v1/a2p/BrandRegistrations/{BrandRegistrationSid}/SmsOtp
CreateBrandRegistrationOtp 1 param → 201
GET
/v1/a2p/BrandRegistrations/{Sid}
FetchBrandRegistrations 1 param → 200
POST
/v1/a2p/BrandRegistrations/{Sid}
UpdateBrandRegistrations 1 param → 202
GET
/v1/a2p/BrandRegistrations
ListBrandRegistrations 3 params → 200
POST
/v1/a2p/BrandRegistrations
CreateBrandRegistrations body → 201
POST
/v1/a2p/BrandRegistrations/{BrandSid}/Vettings
CreateBrandVetting 1 param body → 201
GET
/v1/a2p/BrandRegistrations/{BrandSid}/Vettings
ListBrandVetting 5 params → 200
GET
/v1/a2p/BrandRegistrations/{BrandSid}/Vettings/{BrandVettingSid}
FetchBrandVetting 2 params → 200

Schemas 11

The contract defines 11 schemas that model the data the API accepts and returns. The most detailed are messaging.v1.brand_registrations (20 properties), messaging.v1.brand_registrations.brand_vetting (10 properties), CreateBrandRegistrationsRequest (5 properties), ListBrandRegistrationsResponse (2 properties). Each schema is shown below with its type and property counts.

ListBrandVettingResponse
object
2 properties
brand_registrations_enum_brand_feedback
string
ListBrandRegistrationsResponse
object
2 properties
messaging.v1.brand_registrations
object
20 properties
messaging.v1.brand_registrations.brand_registration_otp
object
2 properties
brand_registrations_enum_status
string
messaging.v1.brand_registrations.brand_vetting
object
10 properties
CreateBrandRegistrationsRequest
object
5 properties 2 required
CreateBrandVettingRequest
object
2 properties 1 required
brand_registrations_enum_identity_status
string
brand_vetting_enum_vetting_provider
string

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

twilio-a2p-api-openapi.yml Raw ↑

Other APIs Twilio publishes across the network.

Twilio Access Tokens API
Twilio Accounts API
Twilio Alerts API
Twilio Alpha Senders API
Twilio Apps API
Twilio Archives API
Twilio Assistants API
Twilio Attempts API
Twilio Auth Tokens API
Twilio AuthTokens API
Twilio ByocTrunks API
Twilio Calls API
Where this information came from

This is an independent, third-party profile of Twilio A2p 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.

Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.

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