Source: https://docs.claude.com/en/api/skills/create-skill

Agent Skills are now available! Learn more about extending Claude's capabilities with Agent Skills .

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Skill Management

Create Skill

Home Developer Guide API Reference Model Context Protocol (MCP) Resources Release Notes

cURL

cURL

Copy

curl -X POST "https://api.anthropic.com/v1/skills" \
     -H "x-api-key: $ANTHROPIC_API_KEY" \
     -H "anthropic-version: 2023-06-01" \
     -H "anthropic-beta: skills-2025-10-02" \
     -F "display_title=My Excel Skill" \
     -F "files[]=@excel-skill/SKILL.md;filename=excel-skill/SKILL.md" \
     -F "files[]=@excel-skill/process_excel.py;filename=excel-skill/process_excel.py"

200

4XX

Copy

{
  "created_at": "2024-10-30T23:58:27.427722Z",
  "display_title": "My Custom Skill",
  "id": "skill_01JAbcdefghijklmnopqrstuvw",
  "latest_version": "1759178010641129",
  "source": "custom",
  "type": "skill",
  "updated_at": "2024-10-30T23:58:27.427722Z"
}

POST

/

v1

/

skills

cURL

cURL

Copy

curl -X POST "https://api.anthropic.com/v1/skills" \
     -H "x-api-key: $ANTHROPIC_API_KEY" \
     -H "anthropic-version: 2023-06-01" \
     -H "anthropic-beta: skills-2025-10-02" \
     -F "display_title=My Excel Skill" \
     -F "files[]=@excel-skill/SKILL.md;filename=excel-skill/SKILL.md" \
     -F "files[]=@excel-skill/process_excel.py;filename=excel-skill/process_excel.py"

200

4XX

Copy

{
  "created_at": "2024-10-30T23:58:27.427722Z",
  "display_title": "My Custom Skill",
  "id": "skill_01JAbcdefghijklmnopqrstuvw",
  "latest_version": "1759178010641129",
  "source": "custom",
  "type": "skill",
  "updated_at": "2024-10-30T23:58:27.427722Z"
}

Headers

​

anthropic-beta

string[]

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

To use multiple betas, use a comma separated list like beta1,beta2 or specify the header multiple times for each beta.

​

anthropic-version

string

required

The version of the Claude API you want to use.

Read more about versioning and our version history here .

​

x-api-key

string

required

Your unique API key for authentication.

This key is required in the header of all API requests, to authenticate your account and access Anthropic's services. Get your API key through the Console . Each key is scoped to a Workspace.

Body

multipart/form-data

​

display_title

string | null

Display title for the skill.

This is a human-readable label that is not included in the prompt sent to the model.

​

files

file[] | null

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.

Response

200

application/json

Successful Response

​

created_at

string

required

ISO 8601 timestamp of when the skill was created.

Examples:

"2024-10-30T23:58:27.427722Z"

​

display_title

string | null

required

Display title for the skill.

This is a human-readable label that is not included in the prompt sent to the model.

Examples:

"My Custom Skill"

​

id

string

required

Unique identifier for the skill.

The format and length of IDs may change over time.

Examples:

"skill_01JAbcdefghijklmnopqrstuvw"

​

latest_version

string | null

required

The latest version identifier for the skill.

This represents the most recent version of the skill that has been created.

Examples:

"1759178010641129"

​

source

string

required

Source of the skill.

This may be one of the following values:

• "custom": the skill was created by a user
• "anthropic": the skill was created by Anthropic

Examples:

"custom"

​

type

string

default:skill

required

Object type.

For Skills, this is always "skill".

​

updated_at

string

required

ISO 8601 timestamp of when the skill was last updated.

Examples:

"2024-10-30T23:58:27.427722Z"

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