Klaviyo Images API is one of 23 APIs that Klaviyo publishes on the APIs.io network, described by a machine-readable OpenAPI specification and an AsyncAPI event-driven specification.
Tagged areas include Image. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, an AsyncAPI specification, an API reference, authentication docs, and rate-limit docs.
This API exposes 5 operations across 3 paths, and defines 13 schemas. It is described by OpenAPI 3.2.0, at version 2026-04-15.
Requests are made against a single base URL, https://a.klaviyo.com.
Metadata
The identity and technical contract details declared by the specification.
Authentication & Security 1
Klaviyo Images API declares
1 security scheme
for authenticating requests.
An API key is passed in the header as Authorization (Klaviyo-API-Key).
By default, every request must be authenticated.
Klaviyo-API-Key— Private key authentication for /api/ endpoints is performed by setting the Authorization header to Klaviyo-API-Key your-private-api-key For more information pl…
Paths & Operations 5
Across 3 paths, the API surfaces 5 operations — 2 GET, 1 PATCH, 2 POST. Each is listed below with its method, path, parameters, and response codes.
images
Schemas 13
The contract defines 13 schemas that model the data the API accepts and returns. The most detailed are CollectionLinks (5 properties), ImageResponseObjectResource (4 properties), ImagePartialUpdateQueryResourceObject (3 properties), ImageUploadQuery (3 properties). Each schema is shown below with its type and property counts.
Specification
The full machine-readable OpenAPI contract behind this narrative.
Source
More from Klaviyo 12
Other APIs Klaviyo publishes across the network.
This is an independent, third-party profile of Klaviyo Images 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.
info@apievangelist.com
·
Read the full data-sourcing policy →
On a security or compliance team? Put security in the subject line and
you will get a person, not a form — we will tell you exactly which public URLs this profile was built from.