Create Skill

POST /v1/skills

Create Skill

Headers

• "anthropic-beta": optional array of AnthropicBeta

  Optional header to specify the beta version(s) you want to use.

  • string

  • "message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 42 more

    • "message-batches-2024-09-24"

    • "prompt-caching-2024-07-31"

    • "computer-use-2024-10-22"

    • "computer-use-2025-01-24"

    • "pdfs-2024-09-25"

    • "token-counting-2024-11-01"

    • "token-efficient-tools-2025-02-19"

    • "output-128k-2025-02-19"

    • "files-api-2025-04-14"

    • "mcp-client-2025-04-04"

    • "mcp-client-2025-11-20"

    • "dev-full-thinking-2025-05-14"

    • "interleaved-thinking-2025-05-14"

    • "code-execution-2025-05-22"

    • "extended-cache-ttl-2025-04-11"

    • "context-1m-2025-08-07"

    • "context-management-2025-06-27"

    • "model-context-window-exceeded-2025-08-26"

    • "skills-2025-10-02"

    • "fast-mode-2026-02-01"

    • "output-300k-2026-03-24"

    • "user-profiles-2026-03-24"

    • "user-profiles-2026-08-18"

    • "user-profiles-2026-09-04"

    • "advisor-tool-2026-03-01"

    • "managed-agents-2026-04-01"

    • "cache-diagnosis-2026-04-07"

    • "dreaming-2026-04-21"

    • "thinking-token-count-2026-05-13"

    • "server-side-fallback-2026-06-01"

    • "server-side-fallback-2026-07-01"

    • "fallback-credit-2026-06-01"

    • "fallback-credit-2026-07-01"

    • "agent-memory-2026-07-22"

    • "mid-conversation-tool-changes-2026-07-01"

    • "compact-2026-01-12"

    • "computer-use-2025-11-24"

    • "mcp-tunnels-2026-06-22"

    • "structured-outputs-2025-11-13"

    • "task-budgets-2026-03-13"

    • "thinking-display-updates-2026-08-18"

    • "ce-user-management-2026-07-13"

    • "mid-conversation-output-config-2026-07-01"

    • "thinking-binding-controls-2026-08-01"

    • "mid-conversation-system-clear-at-2026-08-21"

• "anthropic-workspace-id": optional string

Body parameters (form-data)

• files: array of string

  Files to upload for the skill.

  All files must be in the same top-level directory and must include a SKILL.md file at the root of that directory.

• display_name: optional string or null

  Human-readable, single-line label for the Skill. Maximum 255 characters. Always set: derived from the SKILL.md frontmatter name when omitted at creation. Not unique.

Returns

• BetaSkill object

  • type: "skill"

    Object type.

    For Skills, this is always "skill".

    default: skill

  • id: string

    Unique identifier for the skill.

    The format and length of IDs may change over time.

  • created_at: string

    ISO 8601 timestamp of when the skill was created.

    format: date-time

  • display_name: string

    Human-readable, single-line label for the Skill. Maximum 255 characters. Always set: derived from the SKILL.md frontmatter name when omitted at creation. Not unique.

  • latest_version_id: string

    ID of the newest Skill Version — what latest references resolve to. Always set: a Skill holds at least one version.

  • source: BetaSkillSource

    Where the Skill comes from.

    Possible values:

    • "custom": authored by the platform user; private to their workspace
    • "anthropic": published by Anthropic; shared and read-only
    • "anthropic_example": Anthropic-published sample Skill
    • "plugin": resolved from an installed plugin

    • type: "custom" or "anthropic" or "anthropic_example" or "plugin"

      Where the Skill comes from.

      Possible values:

      • "custom": authored by the platform user; private to their workspace
      • "anthropic": published by Anthropic; shared and read-only
      • "anthropic_example": Anthropic-published sample Skill
      • "plugin": resolved from an installed plugin

      • "custom"

      • "anthropic"

      • "anthropic_example"

      • "plugin"

  • updated_at: string

    ISO 8601 timestamp of when the skill was last updated.

    format: date-time

Example

curl https://api.anthropic.com/v1/skills \
    -H 'Content-Type: multipart/form-data' \
    -H 'anthropic-version: 2023-06-01' \
    -H "X-Api-Key: $ANTHROPIC_API_KEY" \
    -F files='["Example data"]'

Response (200)

{
  "id": "skill_01JAbcdefghijklmnopqrstuvw",
  "created_at": "2024-10-30T23:58:27.427722Z",
  "display_name": "display_name",
  "latest_version_id": "latest_version_id",
  "source": {
    "type": "custom"
  },
  "type": "skill",
  "updated_at": "2024-10-30T23:58:27.427722Z"
}