> ## Documentation Index > Fetch the complete documentation index at: https://tbd-6fc993ce-hypeship-changelog-august-13.mintlify.site/llms.txt > Use this file to discover all available pages before exploring further. # Upload a browser extension > Upload a zip file containing an unpacked browser extension. Optionally provide a unique name for later reference. ## OpenAPI ````yaml https://api.onkernel.com/spec.json post /extensions openapi: 3.1.0 info: description: Developer tools and cloud infrastructure for AI agents to use web browsers title: Kernel API version: 0.1.0 servers: - description: API Server url: https://api.onkernel.com security: - bearerAuth: [] tags: - description: Create and manage browser sessions. name: Browsers - description: Control mouse, keyboard, and screen on the browser instance. name: Browser Computer Controls - description: Execute Playwright code against the browser instance. name: Browser Playwright - description: Read, write, and manage files on the browser instance. name: Browser Filesystem - description: Execute and manage processes on the browser instance. name: Browser Processes - description: Record and manage browser session video replays. name: Browser Replays - description: Stream logs from the browser instance. name: Browser Logs - description: Stream live telemetry events from a browser session. name: Browser Telemetry - description: Create, list, retrieve, and delete browser profiles. name: Profiles - description: Create and manage proxy configurations for routing browser traffic. name: Proxies - description: Create, list, retrieve, and delete browser extensions. name: Extensions - description: Create and manage browser pools for acquiring and releasing browsers. name: Browser Pools - description: Inspect the identity and authorization context for the current request. name: Authentication - description: >- Create and manage auth connections for automated credential capture and login. name: Managed Auth - description: Create and manage credentials for authentication. name: Credentials - description: Configure external credential providers like 1Password. name: Credential Providers - description: List applications and versions. name: Apps - description: Create and manage app deployments and stream deployment events. name: Deployments - description: Invoke actions and stream or query invocation status and events. name: Invocations - description: Read and manage organization-level limits. name: Organization - description: | Create and manage projects for resource isolation within an organization. When projects are disabled for the organization, project operations return `404` with code `projects_disabled`. name: Projects - description: Create and manage API keys for organization and project-scoped access. name: API Keys - description: Read audit log records for the authenticated organization. name: Audit Logs - description: Resolve browser and proxy recommendations for bot-protected sites. name: Site Configs paths: /extensions: post: tags: - Extensions summary: Upload a browser extension description: >- Upload a zip file containing an unpacked browser extension. Optionally provide a unique name for later reference. operationId: postExtensions requestBody: content: multipart/form-data: schema: properties: file: description: ZIP file containing the browser extension. example: '@path/to/extension.zip' format: binary type: string name: description: >- Optional unique name within the project to reference this extension. pattern: ^[A-Za-z0-9._-]{1,255}$ type: string required: - file type: object required: true responses: '201': content: application/json: schema: $ref: '#/components/schemas/Extension' description: Extension uploaded successfully '400': $ref: '#/components/responses/BadRequest' '401': $ref: '#/components/responses/Unauthorized' '403': $ref: '#/components/responses/Forbidden' '409': $ref: '#/components/responses/Conflict' '500': $ref: '#/components/responses/InternalError' security: - bearerAuth: [] components: schemas: Extension: description: A browser extension uploaded to Kernel. properties: checksum: description: >- SHA-256 checksum, encoded as lowercase hexadecimal, of the exact uploaded extension archive bytes. This is not a normalized checksum of the extension contents; archive metadata, file ordering, and compression can change the checksum for otherwise identical contents. Omitted for legacy rows and server-repackaged Chrome Web Store extensions. maxLength: 64 minLength: 64 nullable: true type: string created_at: description: Timestamp when the extension was created format: date-time type: string id: description: Unique identifier for the extension type: string last_used_at: description: Timestamp when the extension was last used format: date-time nullable: true type: string name: description: >- Optional, easier-to-reference name for the extension. Must be unique within the project. nullable: true type: string size_bytes: description: Size of the extension archive in bytes type: integer required: - id - created_at - size_bytes type: object Error: properties: code: description: Application-specific error code (machine-readable) example: bad_request type: string details: description: Additional error details (for multiple errors) items: $ref: '#/components/schemas/ErrorDetail' type: array inner_error: $ref: '#/components/schemas/ErrorDetail' message: description: Human-readable error description for debugging example: 'Missing required field: app_name' type: string required: - code - message type: object ErrorDetail: properties: code: description: Lower-level error code providing more specific detail example: invalid_input type: string message: description: Further detail about the error example: Provided version string is not semver compliant type: string type: object responses: BadRequest: content: application/json: schema: $ref: '#/components/schemas/Error' description: Bad Request – invalid input Unauthorized: content: application/json: schema: $ref: '#/components/schemas/Error' description: Unauthorized – missing or invalid authorization token Forbidden: content: application/json: schema: $ref: '#/components/schemas/Error' description: Forbidden – insufficient permissions or plan Conflict: content: application/json: schema: $ref: '#/components/schemas/Error' description: Conflict – resource already exists InternalError: content: application/json: schema: $ref: '#/components/schemas/Error' description: Internal Server Error securitySchemes: bearerAuth: scheme: bearer type: http ````