> ## Documentation Index
> Fetch the complete documentation index at: https://developers.notion.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Upload a skill

> Upload a skill directory archive to a skill page in one request.

Imports a skill directory into an existing page in a Skills database. Pass the page ID in the path, and send a gzipped tar archive of the directory under the `file` key of a `multipart/form-data` body. The archive can be up to 20 MiB.

> [!NOTE]
>
> Like [Send a file upload](/reference/upload-file), this endpoint takes multipart form data instead of JSON. Include a `boundary` in the `Content-Type` header.

The archive must contain `SKILL.md` with `name` and `description` frontmatter, either at the root or in one directory named after the skill. Uploading replaces the page's title, **Description**, content, and **Files**. Each file and folder next to `SKILL.md` becomes a file or folder in **Files**.

The response includes the updated page ID and `version_id`. It matches the `version_id` from [Get a skill](/reference/agent-skills/get-skill-directory) until the skill changes again, so you can tell whether a later download returns what you uploaded.

To import a new skill, create a page in a Skills database first.

## Errors

| Status | Code | Cause |
| :- | :- | :- |
| 400 | `validation_error` | The ID is malformed, `file` is missing or not sent as form data, the archive is invalid, or the page is not in a Skills database. |
| 403 | `restricted_resource` | The token lacks the **Read content**, **Insert content**, or **Update content** capability. |
| 404 | `object_not_found` | No page with that ID is shared with the connection. |


## OpenAPI

````yaml POST /v1/ai/skills/{id}/upload
openapi: 3.1.0
info:
  title: Notion API
  version: 1.0.0
  termsOfService: >-
    https://notion.notion.site/Terms-and-Privacy-28ffdd083dc3473e9c2da6ec011b58ac
servers:
  - url: https://api.notion.com
security:
  - bearerAuth: []
tags:
  - name: Agent Skills
    description: Skill and plugin directory endpoints
  - name: Databases
    description: Database endpoints
  - name: Data sources
    description: Data source endpoints
  - name: Pages
    description: Page endpoints
  - name: Async tasks
    description: Async task endpoints
  - name: Blocks
    description: Block endpoints
  - name: Comments
    description: Comment endpoints
  - name: File uploads
    description: File upload endpoints
  - name: OAuth
    description: OAuth endpoints (basic authentication)
  - name: Users
    description: User endpoints
  - name: Search
    description: Search endpoints
  - name: Views
    description: View endpoints
  - name: Agents
    description: Agent endpoints
  - name: Sessions
    description: Session endpoints
  - name: Custom emojis
    description: Custom emoji endpoints
  - name: Meeting notes
    description: Meeting notes endpoints
paths:
  /v1/ai/skills/{id}/upload:
    post:
      tags:
        - Agent Skills
      summary: Upload a skill
      operationId: upload-skill
      parameters:
        - name: id
          in: path
          required: true
          schema:
            $ref: '#/components/schemas/idRequest'
            description: >-
              Target page in a Skills database. Create a new page first to
              import a new skill.
        - $ref: '#/components/parameters/notionVersion'
      requestBody:
        required: true
        content:
          multipart/form-data:
            schema:
              type: object
              properties:
                file:
                  type: object
                  properties: {}
                  description: >-
                    The skill directory as a gzip-compressed tar archive
                    (maximum 20 MiB).
              additionalProperties: false
              required:
                - file
      responses:
        '200':
          description: ''
          content:
            application/json:
              schema:
                type: object
                properties:
                  status:
                    type: string
                    const: completed
                    description: Import committed.
                  page_id:
                    type: string
                    format: uuid
                    description: Updated skill page.
                  version_id:
                    type: string
                    description: >-
                      Content version of the uploaded skill. Matches
                      `version_id` from GET /v1/ai/skills/{id} until the skill
                      changes.
                additionalProperties: false
                required:
                  - status
                  - page_id
                  - version_id
        '400':
          description: ''
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/error_api_400'
        '401':
          description: ''
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/error_api_401'
        '403':
          description: ''
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/error_api_403'
        '404':
          description: ''
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/error_api_404'
        '406':
          description: ''
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/error_api_406'
        '409':
          description: ''
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/error_api_409'
        '429':
          description: ''
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/error_api_429'
        '500':
          description: ''
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/error_api_500'
        '503':
          description: ''
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/error_api_503'
        '504':
          description: ''
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/error_api_504'
        '529':
          description: ''
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/error_api_529'
      x-codeSamples:
        - lang: javascript
          label: TypeScript SDK
          source: |-
            import { Client } from "@notionhq/client"

            const notion = new Client({
              auth: process.env.NOTION_API_KEY,
              notionVersion: "2026-03-11"
            })

            import { readFile } from "fs/promises"

            const skillId = "b55c9c91-384d-452b-81db-d1ef79372b75"
            const response = await notion.request({
              method: "post",
              path: "ai/skills/" + encodeURIComponent(skillId) + "/upload",
              formDataParams: {
                file: {
                  filename: "skill.tar.gz",
                  data: new Blob([await readFile("./skill.tar.gz")], {
                    type: "application/gzip"
                  })
                }
              }
            })
components:
  schemas:
    idRequest:
      type: string
    error_api_400:
      allOf:
        - $ref: '#/components/schemas/publicApiCommonErrorResponse'
        - type: object
          properties:
            code:
              enum:
                - invalid_json
                - invalid_request_url
                - invalid_request
                - missing_version
                - invalid_beta
                - validation_error
                - invalid_credit_limit
            status:
              const: 400
          required:
            - code
            - status
          additionalProperties: false
    error_api_401:
      allOf:
        - $ref: '#/components/schemas/publicApiCommonErrorResponse'
        - type: object
          properties:
            code:
              enum:
                - unauthorized
            status:
              const: 401
          required:
            - code
            - status
          additionalProperties: false
    error_api_403:
      oneOf:
        - allOf:
            - $ref: '#/components/schemas/publicApiCommonErrorResponse'
            - type: object
              properties:
                code:
                  enum:
                    - restricted_resource
                    - status_change_not_allowed
                status:
                  const: 403
              required:
                - code
                - status
              additionalProperties: false
        - allOf:
            - $ref: '#/components/schemas/publicApiCommonErrorResponse'
            - type: object
              properties:
                code:
                  const: workspace_credits_exhausted
                status:
                  const: 403
                additional_data:
                  type: object
                  properties:
                    tool_error_code:
                      const: workspace_credits_exhausted
                    tool_error_class:
                      const: entitlement_required
                    tool_error_retryable:
                      const: 'false'
                    recovery_kind:
                      enum:
                        - contact_workspace_owner
                        - open_workspace_credit_settings
                      description: The recovery action selected by Notion for the caller.
                    recovery_url:
                      type: string
                      format: uri
                      description: >-
                        Present when recovery_kind directs the caller to a
                        settings page.
                  required:
                    - tool_error_code
                    - tool_error_class
                    - tool_error_retryable
                    - recovery_kind
                  additionalProperties:
                    oneOf:
                      - type: string
                      - type: array
                        items:
                          type: string
              required:
                - code
                - status
                - additional_data
        - allOf:
            - $ref: '#/components/schemas/publicApiCommonErrorResponse'
            - type: object
              properties:
                code:
                  const: agent_credit_limit_reached
                status:
                  const: 403
                additional_data:
                  type: object
                  properties:
                    tool_error_code:
                      const: agent_credit_limit_reached
                    tool_error_class:
                      const: entitlement_required
                    tool_error_retryable:
                      const: 'false'
                    recovery_kind:
                      enum:
                        - contact_workspace_owner
                        - none
                        - open_agent_settings
                        - request_agent_limit_increase
                        - request_pending
                      description: The recovery action selected by Notion for the caller.
                    recovery_url:
                      type: string
                      format: uri
                      description: >-
                        Present when recovery_kind directs the caller to a
                        settings page.
                  required:
                    - tool_error_code
                    - tool_error_class
                    - tool_error_retryable
                    - recovery_kind
                  additionalProperties:
                    oneOf:
                      - type: string
                      - type: array
                        items:
                          type: string
              required:
                - code
                - status
                - additional_data
    error_api_404:
      allOf:
        - $ref: '#/components/schemas/publicApiCommonErrorResponse'
        - type: object
          properties:
            code:
              enum:
                - object_not_found
                - directory_not_found
            status:
              const: 404
          required:
            - code
            - status
          additionalProperties: false
    error_api_406:
      allOf:
        - $ref: '#/components/schemas/publicApiCommonErrorResponse'
        - type: object
          properties:
            code:
              enum:
                - row_limit_exceeded
            status:
              const: 406
          required:
            - code
            - status
          additionalProperties: false
    error_api_409:
      allOf:
        - $ref: '#/components/schemas/publicApiCommonErrorResponse'
        - type: object
          properties:
            code:
              enum:
                - conflict_error
                - idempotency_key_reused
                - agent_deleted
            status:
              const: 409
          required:
            - code
            - status
          additionalProperties: false
    error_api_429:
      allOf:
        - $ref: '#/components/schemas/publicApiCommonErrorResponse'
        - type: object
          properties:
            code:
              enum:
                - rate_limited
            status:
              const: 429
          required:
            - code
            - status
          additionalProperties: false
    error_api_500:
      allOf:
        - $ref: '#/components/schemas/publicApiCommonErrorResponse'
        - type: object
          properties:
            code:
              enum:
                - internal_server_error
            status:
              const: 500
          required:
            - code
            - status
          additionalProperties: false
    error_api_503:
      allOf:
        - $ref: '#/components/schemas/publicApiCommonErrorResponse'
        - type: object
          properties:
            code:
              enum:
                - service_unavailable
            status:
              const: 503
          required:
            - code
            - status
          additionalProperties: false
    error_api_504:
      allOf:
        - $ref: '#/components/schemas/publicApiCommonErrorResponse'
        - type: object
          properties:
            code:
              enum:
                - gateway_timeout
            status:
              const: 504
          required:
            - code
            - status
          additionalProperties: false
    error_api_529:
      allOf:
        - $ref: '#/components/schemas/publicApiCommonErrorResponse'
        - type: object
          properties:
            code:
              enum:
                - service_overload
            status:
              const: 529
          required:
            - code
            - status
          additionalProperties: false
    publicApiCommonErrorResponse:
      type: object
      properties:
        object:
          const: error
        message:
          type: string
        additional_data:
          type: object
          additionalProperties:
            oneOf:
              - type: string
              - type: array
                items:
                  type: string
      required:
        - object
        - message
  parameters:
    notionVersion:
      name: Notion-Version
      in: header
      required: true
      schema:
        enum:
          - '2026-03-11'
      description: >-
        The [API version](/reference/versioning) to use for this request. The
        latest version is `2026-03-11`.
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer

````