---
title: "List Skill Versions"
method: GET
path: "/v1/skills/{skill_id}/versions?beta=true"
---

# List Skill Versions

`GET /v1/skills/{skill_id}/versions?beta=true`

## Path parameters

- `skill_id` string, required — Unique identifier for the skill. The format and length of IDs may change over time.

## Query parameters

- `page` string, nullable — Optionally set to the `next_page` token from the previous response.
- `limit` integer, nullable — Number of results to return per page. Ranges from `1` to `1000`. Defaults to `20`.

## 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 — The version of the Claude API you want to use. Read more about versioning and our version history [here](https://platform.claude.com/docs/en/api/versioning).
- `x-api-key` string — 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](https://console.anthropic.com/settings/keys). Each key is scoped to a Workspace.
- `anthropic-workspace-id` string

## Response `200`

Successful Response

- BetaListSkillVersionsResponse
  - `data` BetaSkillVersion[], required — List of skills.
    - `created_at` string, date-time, required — ISO 8601 timestamp of when the skill was created.
    - `description` string, required — Description of the skill version. This is extracted from the SKILL.md file in the skill upload.
    - `id` string, required — Unique identifier for this Skill Version. The id addresses the version in paths and pins it in references.
    - `name` string, required — The Skill's immutable kebab-case slug, set at creation from the first upload's SKILL.md frontmatter `name` (or its enclosing directory). Every later upload must resolve to the same value. Also the top-level directory of the Skill's mounted files and the base name of a downloaded archive.
    - `skill_id` string, required — Unique identifier for the skill. The format and length of IDs may change over time.
    - `type` 'skill_version', required — Object type. For Skill Versions, this is always `"skill_version"`.
  - `next_page` string, nullable, required — Token for fetching the next page of results. If `null`, there are no more results available. Pass this value to the `page` parameter in the next request to get the next page.

## Other responses

- `400` — Invalid argument - The client specified an invalid argument
- `401` — Unauthenticated - The request does not have valid authentication credentials
- `403` — Permission denied - The caller does not have permission to execute the specified operation
- `404` — Not found - Some requested entity was not found
- `408` — Deadline exceeded - The deadline expired before the operation could complete
- `409` — Aborted - The operation was aborted due to concurrency issue
- `412` — Failed precondition - Operation was rejected because the system is not in required state
- `413` — Out of range - Operation was attempted past the valid range
- `429` — Resource exhausted - Some resource has been exhausted (rate limiting)
- `431` — Request header fields too large - Request metadata was too large
- `499` — Cancelled - The operation was cancelled by the client
- `500` — Internal - Internal server error
- `501` — Unimplemented - The operation is not implemented or supported
- `503` — Unavailable - The service is currently unavailable
- `504` — Deadline exceeded - Upstream service did not respond in time
- `529` — Overloaded - The service is temporarily overloaded

## Changes

- **2026-09-02** `4789294140a2` — 17 info
  - added the new optional `header` request parameter `anthropic-workspace-id`
  - added the non-success response with the status `400`
  - added the non-success response with the status `401`
  - added the non-success response with the status `403`
  - …13 more
- **2026-08-27** `ef8360d7d2b6` — 4 breaking, 1 info
  - for the `query` request parameter `limit`, default value `20` was added
  - removed the required property `data/items/directory` from the response with the `200` status
  - removed the required property `data/items/version` from the response with the `200` status
  - removed the required property `has_more` from the response with the `200` status
  - …1 more

[Change history](https://skmtc.dev/anthropics/apis/anthropic-api/changes/v1/skills/:skill_id/versions?beta=true/get.md)

---

[API](https://skmtc.dev/anthropics/apis/anthropic-api.md) · [All operations](https://skmtc.dev/anthropics/apis/anthropic-api/llms.txt) · [OpenAPI document](https://skmtc.dev/anthropics/apis/anthropic-api/revisions/1bb7c7a0a4a9?raw)