curl -X DELETE 'https://api.github.com/users/example-username/copilot-spaces/10/collaborators/User/example-actor-identifier' \
  -H "Authorization: Bearer $GITHUB_TOKEN" \
  -H 'Accept: application/vnd.github+json' \
  -H 'X-GitHub-Api-Version: 2026-03-10'

# DELETE /users/{username}/copilot-spaces/{space_number}/collaborators/{actor_type}/{actor_identifier} (GitHub API)
Base URL: https://api.github.com
Auth: Authorization; GitHub token; required.
Last verified: 2026-10-20

> Remove a collaborator from a Copilot Space for a user

## Critical Gotchas
* GitHub recommends an `Accept: application/vnd.github+json` header and an explicit `X-GitHub-Api-Version` header.
* Fine-grained tokens only authorize repositories and permissions selected when the token is created.

## cURL
curl -X DELETE 'https://api.github.com/users/example-username/copilot-spaces/10/collaborators/User/example-actor-identifier' \
  -H "Authorization: Bearer $GITHUB_TOKEN" \
  -H 'Accept: application/vnd.github+json' \
  -H 'X-GitHub-Api-Version: 2026-03-10'

## Parameters
| Name | In | Type | Required | Description |
| :--- | :--- | :--- | :--- | :--- |
| username | path | string | Yes | The handle for the GitHub user account. |
| space_number | path | integer | Yes | The unique identifier of the Copilot Space. |
| actor_type | path | string | Yes | The type of actor (must be `User` for user-owned spaces; `Team` will be rejec... |
| actor_identifier | path | string | Yes | The username of the collaborator. The numeric user ID is also accepted. |

## Response example
null

---
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DELETE

DELETE /users/{username}/copilot-spaces/{space_number}/collaborators/{actor_type}/{actor_identifier} — GitHub API

GitHub token (required); https://api.github.com

GitHub API

Remove a collaborator from a Copilot Space for a user

Base URL: https://api.github.com
Auth: Authorization: Bearer <GITHUB_API_KEY>
Last verified: 2026-10-20 · upstream hash matched

Actions Try in browser→

Agents: curl -H "Accept: text/markdown" this URL
→ 250 tokens · Vary: Accept

Critical gotchas

GitHub recommends an Accept: application/vnd.github+json header and an explicit X-GitHub-Api-Version header.

Fine-grained tokens only authorize repositories and permissions selected when the token is created.

cURL

curl -X DELETE 'https://api.github.com/users/example-username/copilot-spaces/10/collaborators/User/example-actor-identifier' \  -H "Authorization: Bearer $GITHUB_TOKEN" \  -H 'Accept: application/vnd.github+json' \  -H 'X-GitHub-Api-Version: 2026-03-10'

Parameters

Name	In	Type	Required	Description
username	path	string	Yes	The handle for the GitHub user account.
space_number	path	integer	Yes	The unique identifier of the Copilot Space.
actor_type	path	string	Yes	The type of actor (must be `User` for user-owned spaces; `Team` will be rejected).
actor_identifier	path	string	Yes	The username of the collaborator. The numeric user ID is also accepted.

Response 200 OK

null

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