Create a label

Create a label, named by label.

POST/repos/{owner}/{name}/labels

Names are lowercase and unique in a repository, at most 50 characters; color is six hex digits (one is chosen from the name when left out), description at most 100 characters. Needs the Write role or higher; applying labels and milestones needs Triage.

Authentication: Required. Send an access token as Authorization: Bearer.
MCP tool: repository with action create_label, and the same inputs
Scope: An access token needs issues:write.

Path parameters

Name	Type	Required	Description
`owner`	string	Yes	The workspace that owns the repository.
`name`	string	Yes	The repository’s name.

Body parameters

Send a JSON object. Names are snake_case, as in responses; the camelCase spelling is accepted too.

Name	Type	Required	Description
`label`	string	Yes	Its name: lowercase, at most 50 characters, e.g. “good first issue”.
`color`	string	No	Six hex digits, with or without #, e.g. “d73a4a”. Chosen from the name when left out.
`description`	string	No	What it means, at most 100 characters.

Example request

curl -X POST https://api.g1t.sh/repos/flagon-io/hello/labels \
  -H "Authorization: Bearer $G1T_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{
    "label": "area: cli",
    "color": "1d76db",
    "description": "The command-line tool"
  }'

Example response

A successful request answers 200 with:

{
  "name": "area: cli",
  "color": "1d76db",
  "description": "The command-line tool",
  "issues": 0,
  "pulls": 0
}

Errors

A failed request answers with one of these statuses and a body like {"error": {"code": "not_found", "message": "Repository not found."}}. See errors.

Status	Code	When
401	`unauthenticated`	A token is required, or the one sent is not valid.
403	`forbidden`	The token is valid but not allowed to do this, such as a member-only change or an agent token outside its repository.
404	`not_found`	It does not exist, or you cannot see it.
409	`conflict`	The request conflicts with the current state.
422	`invalid`	The input is not valid. `message` says which field and why.