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Kernel Extensions API

Create, list, retrieve, and delete browser extensions.

Kernel Extensions API is one of 22 APIs that Kernel publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

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

This API exposes 5 operations across 3 paths, and defines 3 schemas. It is described by OpenAPI 3.2.0, at version 0.1.0.

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

5 operations 3 paths 3 schemas 1 DELETE3 GET1 POST

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.2.0
API Version
0.1.0
Base URL
https://api.onkernel.com
Authentication
HTTP Bearer
Resource Areas
1

Authentication & Security 1

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

Paths & Operations 5

Across 3 paths, the API surfaces 5 operations — 1 DELETE, 3 GET, 1 POST. Each is listed below with its method, path, parameters, and response codes.

Extensions 5

Create, list, retrieve, and delete browser extensions.

POST
/extensions
Upload a browser extension
postExtensions body → 201400401403409500
GET
/extensions
List browser extensions
getExtensions → 200401500
GET
/extensions/{id_or_name}
Download extension archive
getExtensionByIdOrName 1 param → 200401404500
DELETE
/extensions/{id_or_name}
Delete extension by ID or name
deleteExtensionByIdOrName 1 param → 204400401404500
GET
/extensions/from_chrome_store
Download unpacked extension from Chrome Web Store
getExtensionsFromChromeStore 2 params → 200400401403500

Schemas 3

The contract defines 3 schemas that model the data the API accepts and returns. The most detailed are Extension (5 properties), Error (4 properties), ErrorDetail (2 properties). Each schema is shown below with its type and property counts.

Extension
object
A browser extension uploaded to Kernel.
5 properties 3 required
Error
object
4 properties 2 required
ErrorDetail
object
2 properties

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

kernel-so-extensions-api-openapi.yml Raw ↑

Other APIs Kernel publishes across the network.

Kernel MCP Server
Kernel API Keys API
Kernel Apps API
Kernel Auth Connections API
Kernel Browser Computer Controls API
Kernel Browser Filesystem API
Kernel Browser Logs API
Kernel Browser Playwright API
Kernel Browser Pools API
Kernel Browser Processes API
Kernel Browser Replays API
Kernel Browser Telemetry API
Where this information came from

This is an independent, third-party profile of Kernel Extensions 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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