> ## Documentation Index > Fetch the complete documentation index at: https://docs.blaxel.ai/llms.txt > Use this file to discover all available pages before exploring further. # Build a container image > Builds a container image without creating a deployment. Returns a presigned URL for uploading source code. After upload, the image will be built and stored in the registry, but no agent, function, sandbox, or job will be created or updated. ## OpenAPI ````yaml /api-reference/controlplane.yml post /images openapi: 3.0.3 info: title: Blaxel Control Plane version: 0.0.1 servers: - description: Blaxel Control Plane url: https://api.blaxel.ai/v0 - description: Blaxel Inference url: https://run.blaxel.ai security: - OAuth2: - admin - ApiKeyAuth: [] paths: /images: post: tags: - images summary: Build a container image description: >- Builds a container image without creating a deployment. Returns a presigned URL for uploading source code. After upload, the image will be built and stored in the registry, but no agent, function, sandbox, or job will be created or updated. operationId: CreateImage requestBody: content: application/json: schema: properties: generation: description: >- Runtime generation (e.g., mk3). Defaults to mk3 if not specified. type: string image: description: >- A pre-built Docker image reference (e.g., docker.io/myorg/myimage:latest). When provided, the build step is skipped and the image is used directly as the source for the resource runtime. type: string name: description: Name of the image to build type: string resourceType: type: string description: Resource type (agent, function, sandbox, job) required: - resourceType - name type: object required: true responses: '200': content: application/json: schema: properties: image: description: >- The registered image reference (only present when image was provided in request) type: string message: description: Status message type: string name: description: Name of the image type: string resourceType: type: string description: Resource type type: object description: successful operation headers: X-Blaxel-Upload-Url: description: Presigned URL for uploading source code schema: type: string '400': description: invalid request security: - OAuth2: - images:create - ApiKeyAuth: [] components: securitySchemes: OAuth2: description: OAuth2 authentication with JWT tokens flows: authorizationCode: authorizationUrl: /oauth/authorize scopes: admin: Administrative access agents:create: Create agents agents:delete: Delete agents agents:get: Get agent details agents:list: List agents agents:update: Update agents apiKey:list: List API keys apiKey:write: Create and delete API keys configurations:list: List configurations customdomains:create: Create custom domains customdomains:delete: Delete custom domains customdomains:get: Get custom domain details customdomains:list: List custom domains customdomains:update: Update custom domains functions:create: Create functions functions:delete: Delete functions functions:get: Get function details functions:list: List functions functions:update: Update functions integrations:create: Create integrations integrations:list: List integrations invitations:list: List invitations jobs:create: Create jobs jobs:delete: Delete jobs jobs:get: Get job details jobs:list: List jobs jobs:update: Update jobs locations:list: List locations mcphub:list: List MCP hub resources models:create: Create models models:delete: Delete models models:get: Get model details models:list: List models models:update: Update models policies:create: Create policies policies:delete: Delete policies policies:get: Get policy details policies:list: List policies policies:update: Update policies sandboxes:control: Control sandbox operations sandboxes:create: Create sandboxes sandboxes:delete: Delete sandboxes sandboxes:get: Get sandbox details sandboxes:list: List sandboxes sandboxes:update: Update sandboxes sandboxhub:list: List sandbox hub resources templates:get: Get template details templates:list: List templates volumeTemplates:create: Create volume templates volumeTemplates:delete: Delete volume templates volumeTemplates:get: Get volume template details volumeTemplates:list: List volume templates volumeTemplates:upsert: Create or update volume templates volumes:create: Create volumes volumes:delete: Delete volumes volumes:get: Get volume details volumes:list: List volumes workspaces:accept: Accept workspace invitation workspaces:create: Create workspaces workspaces:decline: Decline workspace invitation workspaces:delete: Delete workspaces workspaces:get: Get workspace details workspaces:invite: Invite users to workspace workspaces:leave: Leave workspace workspaces:list: List workspaces workspaces:remove: Remove users from workspace workspaces:update: Update workspaces tokenUrl: /oauth/token clientCredentials: scopes: admin: Administrative access agents:create: Create agents agents:delete: Delete agents agents:get: Get agent details agents:list: List agents agents:update: Update agents apiKey:list: List API keys apiKey:write: Create and delete API keys configurations:list: List configurations customdomains:create: Create custom domains customdomains:delete: Delete custom domains customdomains:get: Get custom domain details customdomains:list: List custom domains customdomains:update: Update custom domains functions:create: Create functions functions:delete: Delete functions functions:get: Get function details functions:list: List functions functions:update: Update functions integrations:create: Create integrations integrations:list: List integrations invitations:list: List invitations jobs:create: Create jobs jobs:delete: Delete jobs jobs:get: Get job details jobs:list: List jobs jobs:update: Update jobs locations:list: List locations mcphub:list: List MCP hub resources models:create: Create models models:delete: Delete models models:get: Get model details models:list: List models models:update: Update models policies:create: Create policies policies:delete: Delete policies policies:get: Get policy details policies:list: List policies policies:update: Update policies sandboxes:control: Control sandbox operations sandboxes:create: Create sandboxes sandboxes:delete: Delete sandboxes sandboxes:get: Get sandbox details sandboxes:list: List sandboxes sandboxes:update: Update sandboxes sandboxhub:list: List sandbox hub resources templates:get: Get template details templates:list: List templates volumeTemplates:create: Create volume templates volumeTemplates:delete: Delete volume templates volumeTemplates:get: Get volume template details volumeTemplates:list: List volume templates volumeTemplates:upsert: Create or update volume templates volumes:create: Create volumes volumes:delete: Delete volumes volumes:get: Get volume details volumes:list: List volumes workspaces:accept: Accept workspace invitation workspaces:create: Create workspaces workspaces:decline: Decline workspace invitation workspaces:delete: Delete workspaces workspaces:get: Get workspace details workspaces:invite: Invite users to workspace workspaces:leave: Leave workspace workspaces:list: List workspaces workspaces:remove: Remove users from workspace workspaces:update: Update workspaces tokenUrl: /oauth/token type: oauth2 ApiKeyAuth: bearerFormat: API Key description: Long-lived API key for programmatic access scheme: bearer type: http ````