> ## Documentation Index > Fetch the complete documentation index at: https://docs.e2b.dev/llms.txt > Use this file to discover all available pages before exploring further. # Assign tags > Assign tag(s) to a template build ## OpenAPI ````yaml /openapi-public.yaml post /templates/tags openapi: 3.1.0 info: title: E2B API version: 0.1.0 description: >- Complete E2B developer API. Platform endpoints are served on api.e2b.app. Sandbox endpoints (envd) are served on the shared sandbox host (sandbox.e2b.app); target a specific sandbox with the E2b-Sandbox-Id and E2b-Sandbox-Port headers. servers: - url: https://api.e2b.app description: E2B Platform API security: [] tags: - name: Sandboxes - name: Templates - name: Tags - name: Volumes - name: Envd - name: Filesystem - name: Process - name: Teams - name: Secrets - name: Events - name: Webhooks paths: /templates/tags: servers: - url: https://api.e2b.app description: E2B Platform API post: tags: - Tags summary: Assign tags description: Assign tag(s) to a template build operationId: postTemplatesTags requestBody: required: true content: application/json: schema: $ref: '#/components/schemas/AssignTemplateTagsRequest' responses: '201': description: Tag assigned successfully content: application/json: schema: $ref: '#/components/schemas/AssignedTemplateTags' '400': description: Bad request content: application/json: schema: required: - code - message properties: code: type: integer format: int32 description: Error code example: 400 error_code: type: string description: >- Machine-readable semantic error code. Not a closed set; initial values: sandbox_capacity_unavailable, sandbox_placement_timeout, sandbox_no_compatible_node, sandbox_create_failed, internal_server_error. message: type: string description: Error type: object examples: emptyTags: summary: No tags were supplied value: code: 400 message: At least one tag is required '401': description: Authentication error content: application/json: schema: required: - code - message properties: code: type: integer format: int32 description: Error code example: 401 error_code: type: string description: >- Machine-readable semantic error code. Not a closed set; initial values: sandbox_capacity_unavailable, sandbox_placement_timeout, sandbox_no_compatible_node, sandbox_create_failed, internal_server_error. message: type: string description: Error type: object examples: missingAuthentication: summary: No supported authentication header was supplied value: code: 401 message: authorization header is missing '403': description: Forbidden content: application/json: schema: required: - code - message properties: code: type: integer format: int32 description: Error code example: 403 error_code: type: string description: >- Machine-readable semantic error code. Not a closed set; initial values: sandbox_capacity_unavailable, sandbox_placement_timeout, sandbox_no_compatible_node, sandbox_create_failed, internal_server_error. message: type: string description: Error type: object examples: teamBanned: summary: The team is banned at authentication value: code: 403 message: team is banned teamBlocked: summary: >- The authenticated team is blocked. The message may append a reason value: code: 403 message: team is blocked '404': description: Not found content: application/json: schema: required: - code - message properties: code: type: integer format: int32 description: Error code example: 404 error_code: type: string description: >- Machine-readable semantic error code. Not a closed set; initial values: sandbox_capacity_unavailable, sandbox_placement_timeout, sandbox_no_compatible_node, sandbox_create_failed, internal_server_error. message: type: string description: Error type: object examples: templateTagNotFound: summary: The target template tag is missing value: code: 404 message: Template 'my-template' with tag 'default' not found '429': description: Too many requests headers: Retry-After: description: >- When present, the number of seconds to wait before retrying the request. required: false schema: type: integer minimum: 0 example: 30 RateLimit-Limit: description: Configured rate-limit burst size. schema: type: integer RateLimit-Remaining: description: Requests remaining in the rate-limit window. schema: type: integer RateLimit-Reset: description: Seconds until the rate-limit window resets. schema: type: integer content: application/json: schema: required: - code - message properties: code: type: integer format: int32 description: Error code example: 429 error_code: type: string description: >- Machine-readable semantic error code. Not a closed set; initial values: sandbox_capacity_unavailable, sandbox_placement_timeout, sandbox_no_compatible_node, sandbox_create_failed, internal_server_error. message: type: string description: Error type: object examples: rateLimitExceeded: summary: A configured API rate limit was exceeded value: code: 429 message: Rate limit exceeded '500': description: Server error content: application/json: schema: required: - code - message properties: code: type: integer format: int32 description: Error code example: 500 error_code: type: string description: >- Machine-readable semantic error code. Not a closed set; initial values: sandbox_capacity_unavailable, sandbox_placement_timeout, sandbox_no_compatible_node, sandbox_create_failed, internal_server_error. message: type: string description: Error type: object examples: operationFailed: summary: Writing a template tag assignment fails value: code: 500 message: Error creating tag assignment security: - ApiKeyAuth: [] components: schemas: AssignTemplateTagsRequest: required: - target - tags properties: target: type: string description: Target template in "name:tag" format tags: description: Tags to assign to the template type: array items: type: string type: object AssignedTemplateTags: required: - tags - buildID properties: tags: type: array items: type: string description: Assigned tags of the template buildID: type: string format: uuid description: Identifier of the build associated with these tags type: object securitySchemes: ApiKeyAuth: type: apiKey in: header name: X-API-Key ````