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Sinch Inbounds API

Inbound messages (Mobile Originated) are incoming messages sent to your short codes or long numbers from mobile phones.

Sinch Inbounds API is one of 35 APIs that Sinch publishes on the APIs.io network, described by a machine-readable OpenAPI specification and an AsyncAPI event-driven specification.

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

This API exposes 2 operations across 2 paths, and defines 2 schemas. It is described by OpenAPI 3.2.0, at version 1.0.

Requests are made against 5 base URLs: https://us.sms.api.sinch.com, https://eu.sms.api.sinch.com, https://au.sms.api.sinch.com, https://br.sms.api.sinch.com, https://ca.sms.api.sinch.com.

2 operations 2 paths 2 schemas 2 GET

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.2.0
API Version
1.0
Base URL
https://us.sms.api.sinch.com
Authentication
HTTP Bearer
Terms of Service
Resource Areas
1

Authentication & Security 1

Sinch Inbounds API declares 1 security scheme for authenticating requests. It accepts HTTP bearer tokens (bearerAuth). By default, every request must be authenticated.

  • bearerAuth — API token sent in the Authorization header preceded by Bearer.

Paths & Operations 2

Across 2 paths, the API surfaces 2 operations — 2 GET. Each is listed below with its method, path, parameters, and response codes.

Inbounds 2

Inbound messages (Mobile Originated) are incoming messages sent to your short codes or long numbers from mobile phones.

GET
/xms/v1/{service_plan_id}/inbounds
List Inbound Messages
listInboundMessages 6 params → 200401
GET
/xms/v1/{service_plan_id}/inbounds/{inbound_id}
Get an Inbound Message
getInboundMessage 2 params → 200401404

Schemas 2

The contract defines 2 schemas that model the data the API accepts and returns. The most detailed are InboundMessage (8 properties), InboundMessageList (4 properties). Each schema is shown below with its type and property counts.

InboundMessageList
object
4 properties
InboundMessage
object
8 properties

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

sinch-inbounds-api-openapi.yml Raw ↑

Other APIs Sinch publishes across the network.

Sinch Access Control Lists API
Sinch Active Numbers API
Sinch Applications API
Sinch Apps API
Sinch Available Numbers API
Sinch Available Regions API
Sinch Batches API
Sinch Brand Metadata API
Sinch Brands API
Sinch Callouts API
Sinch Calls API
Sinch Capability API
Where this information came from

This is an independent, third-party profile of Sinch Inbounds 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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