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LinkedIn Use Cases > InMail Content API

You can set up the message contents sent to targeted LinkedIn members' inbox, either as a Message Ad or a Conversation Ad.

LinkedIn Use Cases > InMail Content API is one of 65 APIs that LinkedIn publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include Use Cases > InMail Content. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, a getting-started guide, a changelog, release notes, and an API reference.

This API exposes 5 operations across 3 paths, and defines 2 schemas. It is described by OpenAPI 3.1.0, at version 1.0.0.

Requests are made against a single base URL, https://api.linkedin.com.

5 operations 3 paths 2 schemas 2 GET3 POST

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.1.0
API Version
1.0.0
Base URL
https://api.linkedin.com
Authentication
OAuth 2.0
Resource Areas
1

Authentication & Security 1

LinkedIn Use Cases > InMail Content API declares 1 security scheme for authenticating requests. It supports OAuth 2.0 (OAuth2Auth) using the authorizationCode flow, exposing 1 scope. By default, every request must be authenticated.

Paths & Operations 5

Across 3 paths, the API surfaces 5 operations — 2 GET, 3 POST. Each is listed below with its method, path, parameters, and response codes.

Use Cases > InMail Content 5

You can set up the message contents sent to targeted LinkedIn members' inbox, either as a Message Ad or a Conversation Ad.

POST
/rest/inMailContents/
LinkedIn Create InMail Content
postCreateInmailContent 3 params body → 200
GET
/rest/inMailContents/{adInMailContentId}
LinkedIn Get InMail Content
getGetInmailContent 4 params → 200
POST
/rest/inMailContents/{adInMailContentId}
LinkedIn Update InMail Content
postUpdateInmailContent 4 params body → 200
GET
/rest/inMailContents
LinkedIn Batch Get InMail Content
getBatchGetInmailContent 5 params → 200
POST
/rest/inMailContents
LinkedIn Send Test InMail
postSendTestInmail 4 params body → 200

Schemas 2

The contract defines 2 schemas that model the data the API accepts and returns. Each schema is shown below with its type and property counts.

UpdateInmailContentRequest
string
CreateInmailContentRequest
string

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

linkedin-use-cases-inmail-content-api-openapi.yml Raw ↑

Other APIs LinkedIn publishes across the network.

LinkedIn Consumer API
LinkedIn Access Control API
LinkedIn Account Management API
LinkedIn Ad Accounts API
LinkedIn Ad Targeting Entities API
LinkedIn Advertiser Transparency API
LinkedIn Application Retrieval API
LinkedIn Application Synchronization API
LinkedIn Application Updates API
LinkedIn Apply Connect Jobs API
LinkedIn Audience Counts API
LinkedIn Audience Insights API
Where this information came from

This is an independent, third-party profile of LinkedIn Use Cases > InMail Content 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.

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