REST API endpoints for stacked pull requests

List pull request stacks

Lists pull request stacks in a repository.

Fine-grained access tokens for "List pull request stacks"

This endpoint works with the following fine-grained token types:

The fine-grained token must have the following permission set:

"Pull requests" repository permissions (read)

This endpoint can be used without authentication or the aforementioned permissions if only public resources are requested.

Parameters for "List pull request stacks"

Headers
Name, Type, Description
`accept` string Setting to `application/vnd.github+json` is recommended.

Path parameters
Name, Type, Description
`owner` string Required The account owner of the repository. The name is not case sensitive.
`repo` string Required The name of the repository without the `.git` extension. The name is not case sensitive.

Query parameters
Name, Type, Description
`pull_request` integer Filter to the stack containing this repository pull request number.
`per_page` integer The number of results per page (max 100). For more information, see "Using pagination in the REST API." Default: `30`
`page` integer The page number of the results to fetch. For more information, see "Using pagination in the REST API." Default: `1`

HTTP response status codes for "List pull request stacks"

Status code	Description
`200`	OK
`404`	Resource not found
`422`	Validation failed, or the endpoint has been spammed.

Code samples for "List pull request stacks"

Request example

get/repos/{owner}/{repo}/stacks

curl -L \
  -H "Accept: application/vnd.github+json" \
  -H "Authorization: Bearer <YOUR-TOKEN>" \
  -H "X-GitHub-Api-Version: 2026-03-10" \
  https://api.github.com/repos/OWNER/REPO/stacks

Response

Status: 200

[
  {
    "id": 9876543,
    "number": 42,
    "node_id": "S_kwDOABCDEF4AAAAA",
    "url": "https://api.github.com/repos/octocat/hello-world/stacks/42",
    "base": {
      "ref": "main"
    },
    "pull_requests": [
      {
        "number": 101,
        "state": "open",
        "draft": false,
        "merged_at": null,
        "head": {
          "ref": "user-model",
          "sha": "aaa1111aaa1111aaa1111aaa1111aaa1111aaa11"
        }
      },
      {
        "number": 102,
        "state": "open",
        "draft": false,
        "merged_at": null,
        "head": {
          "ref": "user-api",
          "sha": "bbb2222bbb2222bbb2222bbb2222bbb2222bbb22"
        }
      }
    ],
    "open": true,
    "created_at": "2026-04-15T10:00:00Z"
  }
]

Creates a stack from an ordered list of pull request numbers. Provide the pull request numbers from the bottom of the stack to the top. Each pull request's base ref must match the previous pull request's head ref.

Fine-grained access tokens for "Create a pull request stack"

This endpoint works with the following fine-grained token types:

The fine-grained token must have the following permission set:

"Pull requests" repository permissions (write)

Parameters for "Create a pull request stack"

Headers
Name, Type, Description
`accept` string Setting to `application/vnd.github+json` is recommended.

Path parameters
Name, Type, Description
`owner` string Required The account owner of the repository. The name is not case sensitive.
`repo` string Required The name of the repository without the `.git` extension. The name is not case sensitive.

Body parameters
Name, Type, Description
`pull_requests` array of integers Required An ordered list of pull request numbers forming the stack from bottom to top.

HTTP response status codes for "Create a pull request stack"

Status code	Description
`201`	Created
`404`	Resource not found
`422`	Validation failed. Returned when the request references pull requests that don't exist in the repository, or when the pull requests can't form a valid stack.

Code samples for "Create a pull request stack"

Request example

post/repos/{owner}/{repo}/stacks

curl -L \
  -X POST \
  -H "Accept: application/vnd.github+json" \
  -H "Authorization: Bearer <YOUR-TOKEN>" \
  -H "X-GitHub-Api-Version: 2026-03-10" \
  https://api.github.com/repos/OWNER/REPO/stacks \
  -d '{"pull_requests":[101,102,103]}'

Response

Status: 201

{
  "id": 9876543,
  "number": 42,
  "node_id": "S_kwDOABCDEF4AAAAA",
  "url": "https://api.github.com/repos/octocat/hello-world/stacks/42",
  "base": {
    "ref": "main"
  },
  "open": true,
  "created_at": "2026-04-15T10:00:00Z",
  "pull_requests": [
    {
      "id": 100001,
      "node_id": "PR_kwDOABCDEF4AAAAA",
      "title": "Add user model",
      "state": "open",
      "merged_at": null,
      "draft": false,
      "html_url": "https://github.com/octocat/hello-world/pull/101",
      "user": {
        "login": "octocat",
        "id": 1,
        "node_id": "MDQ6VXNlcjE=",
        "avatar_url": "https://github.com/images/error/octocat_happy.gif",
        "gravatar_id": "",
        "url": "https://api.github.com/users/octocat",
        "html_url": "https://github.com/octocat",
        "followers_url": "https://api.github.com/users/octocat/followers",
        "following_url": "https://api.github.com/users/octocat/following{/other_user}",
        "gists_url": "https://api.github.com/users/octocat/gists{/gist_id}",
        "starred_url": "https://api.github.com/users/octocat/starred{/owner}{/repo}",
        "subscriptions_url": "https://api.github.com/users/octocat/subscriptions",
        "organizations_url": "https://api.github.com/users/octocat/orgs",
        "repos_url": "https://api.github.com/users/octocat/repos",
        "events_url": "https://api.github.com/users/octocat/events{/privacy}",
        "received_events_url": "https://api.github.com/users/octocat/received_events",
        "type": "User",
        "site_admin": false,
        "user_view_type": "public"
      },
      "number": 101,
      "url": "https://api.github.com/repos/octocat/hello-world/pulls/101",
      "head": {
        "ref": "user-model",
        "sha": "aaa1111aaa1111aaa1111aaa1111aaa1111aaa11",
        "repo": {
          "id": 1296269,
          "url": "https://api.github.com/repos/octocat/hello-world",
          "name": "hello-world"
        }
      },
      "base": {
        "ref": "main",
        "sha": "6dcb09b5b57875f334f61aebed695e2e4193db5e",
        "repo": {
          "id": 1296269,
          "url": "https://api.github.com/repos/octocat/hello-world",
          "name": "hello-world"
        }
      }
    },
    {
      "id": 100002,
      "node_id": "PR_kwDOABCDEF4AAAAB",
      "title": "Add user API",
      "state": "open",
      "merged_at": null,
      "draft": true,
      "html_url": "https://github.com/octocat/hello-world/pull/102",
      "user": {
        "login": "octocat",
        "id": 1,
        "node_id": "MDQ6VXNlcjE=",
        "avatar_url": "https://github.com/images/error/octocat_happy.gif",
        "gravatar_id": "",
        "url": "https://api.github.com/users/octocat",
        "html_url": "https://github.com/octocat",
        "followers_url": "https://api.github.com/users/octocat/followers",
        "following_url": "https://api.github.com/users/octocat/following{/other_user}",
        "gists_url": "https://api.github.com/users/octocat/gists{/gist_id}",
        "starred_url": "https://api.github.com/users/octocat/starred{/owner}{/repo}",
        "subscriptions_url": "https://api.github.com/users/octocat/subscriptions",
        "organizations_url": "https://api.github.com/users/octocat/orgs",
        "repos_url": "https://api.github.com/users/octocat/repos",
        "events_url": "https://api.github.com/users/octocat/events{/privacy}",
        "received_events_url": "https://api.github.com/users/octocat/received_events",
        "type": "User",
        "site_admin": false,
        "user_view_type": "public"
      },
      "number": 102,
      "url": "https://api.github.com/repos/octocat/hello-world/pulls/102",
      "head": {
        "ref": "user-api",
        "sha": "bbb2222bbb2222bbb2222bbb2222bbb2222bbb22",
        "repo": {
          "id": 1296269,
          "url": "https://api.github.com/repos/octocat/hello-world",
          "name": "hello-world"
        }
      },
      "base": {
        "ref": "user-model",
        "sha": "aaa1111aaa1111aaa1111aaa1111aaa1111aaa11",
        "repo": {
          "id": 1296269,
          "url": "https://api.github.com/repos/octocat/hello-world",
          "name": "hello-world"
        }
      }
    }
  ]
}

Get a pull request stack

Gets a pull request stack by providing its stack number.

Fine-grained access tokens for "Get a pull request stack"

This endpoint works with the following fine-grained token types:

The fine-grained token must have the following permission set:

"Pull requests" repository permissions (read)

This endpoint can be used without authentication or the aforementioned permissions if only public resources are requested.

Parameters for "Get a pull request stack"

Headers
Name, Type, Description
`accept` string Setting to `application/vnd.github+json` is recommended.

Path parameters
Name, Type, Description
`owner` string Required The account owner of the repository. The name is not case sensitive.
`repo` string Required The name of the repository without the `.git` extension. The name is not case sensitive.
`stack_number` integer Required The number that identifies the pull request stack.

HTTP response status codes for "Get a pull request stack"

Status code	Description
`200`	OK
`404`	Resource not found

Code samples for "Get a pull request stack"

Request example

get/repos/{owner}/{repo}/stacks/{stack_number}

curl -L \
  -H "Accept: application/vnd.github+json" \
  -H "Authorization: Bearer <YOUR-TOKEN>" \
  -H "X-GitHub-Api-Version: 2026-03-10" \
  https://api.github.com/repos/OWNER/REPO/stacks/STACK_NUMBER

Response

Status: 200

{
  "id": 9876543,
  "number": 42,
  "node_id": "S_kwDOABCDEF4AAAAA",
  "url": "https://api.github.com/repos/octocat/hello-world/stacks/42",
  "base": {
    "ref": "main"
  },
  "open": true,
  "created_at": "2026-04-15T10:00:00Z",
  "pull_requests": [
    {
      "id": 100001,
      "node_id": "PR_kwDOABCDEF4AAAAA",
      "title": "Add user model",
      "state": "open",
      "merged_at": null,
      "draft": false,
      "html_url": "https://github.com/octocat/hello-world/pull/101",
      "user": {
        "login": "octocat",
        "id": 1,
        "node_id": "MDQ6VXNlcjE=",
        "avatar_url": "https://github.com/images/error/octocat_happy.gif",
        "gravatar_id": "",
        "url": "https://api.github.com/users/octocat",
        "html_url": "https://github.com/octocat",
        "followers_url": "https://api.github.com/users/octocat/followers",
        "following_url": "https://api.github.com/users/octocat/following{/other_user}",
        "gists_url": "https://api.github.com/users/octocat/gists{/gist_id}",
        "starred_url": "https://api.github.com/users/octocat/starred{/owner}{/repo}",
        "subscriptions_url": "https://api.github.com/users/octocat/subscriptions",
        "organizations_url": "https://api.github.com/users/octocat/orgs",
        "repos_url": "https://api.github.com/users/octocat/repos",
        "events_url": "https://api.github.com/users/octocat/events{/privacy}",
        "received_events_url": "https://api.github.com/users/octocat/received_events",
        "type": "User",
        "site_admin": false,
        "user_view_type": "public"
      },
      "number": 101,
      "url": "https://api.github.com/repos/octocat/hello-world/pulls/101",
      "head": {
        "ref": "user-model",
        "sha": "aaa1111aaa1111aaa1111aaa1111aaa1111aaa11",
        "repo": {
          "id": 1296269,
          "url": "https://api.github.com/repos/octocat/hello-world",
          "name": "hello-world"
        }
      },
      "base": {
        "ref": "main",
        "sha": "6dcb09b5b57875f334f61aebed695e2e4193db5e",
        "repo": {
          "id": 1296269,
          "url": "https://api.github.com/repos/octocat/hello-world",
          "name": "hello-world"
        }
      }
    },
    {
      "id": 100002,
      "node_id": "PR_kwDOABCDEF4AAAAB",
      "title": "Add user API",
      "state": "open",
      "merged_at": null,
      "draft": true,
      "html_url": "https://github.com/octocat/hello-world/pull/102",
      "user": {
        "login": "octocat",
        "id": 1,
        "node_id": "MDQ6VXNlcjE=",
        "avatar_url": "https://github.com/images/error/octocat_happy.gif",
        "gravatar_id": "",
        "url": "https://api.github.com/users/octocat",
        "html_url": "https://github.com/octocat",
        "followers_url": "https://api.github.com/users/octocat/followers",
        "following_url": "https://api.github.com/users/octocat/following{/other_user}",
        "gists_url": "https://api.github.com/users/octocat/gists{/gist_id}",
        "starred_url": "https://api.github.com/users/octocat/starred{/owner}{/repo}",
        "subscriptions_url": "https://api.github.com/users/octocat/subscriptions",
        "organizations_url": "https://api.github.com/users/octocat/orgs",
        "repos_url": "https://api.github.com/users/octocat/repos",
        "events_url": "https://api.github.com/users/octocat/events{/privacy}",
        "received_events_url": "https://api.github.com/users/octocat/received_events",
        "type": "User",
        "site_admin": false,
        "user_view_type": "public"
      },
      "number": 102,
      "url": "https://api.github.com/repos/octocat/hello-world/pulls/102",
      "head": {
        "ref": "user-api",
        "sha": "bbb2222bbb2222bbb2222bbb2222bbb2222bbb22",
        "repo": {
          "id": 1296269,
          "url": "https://api.github.com/repos/octocat/hello-world",
          "name": "hello-world"
        }
      },
      "base": {
        "ref": "user-model",
        "sha": "aaa1111aaa1111aaa1111aaa1111aaa1111aaa11",
        "repo": {
          "id": 1296269,
          "url": "https://api.github.com/repos/octocat/hello-world",
          "name": "hello-world"
        }
      }
    }
  ]
}

Add pull requests to a pull request stack

Appends an ordered list of pull request numbers onto the top of an existing stack. Provide only the pull requests you want to add, from the current top of the stack upward. The first new pull request's base ref must match the current top pull request's head ref.

Fine-grained access tokens for "Add pull requests to a pull request stack"

This endpoint works with the following fine-grained token types:

The fine-grained token must have the following permission set:

"Pull requests" repository permissions (write)

Parameters for "Add pull requests to a pull request stack"

Headers
Name, Type, Description
`accept` string Setting to `application/vnd.github+json` is recommended.

Path parameters
Name, Type, Description
`owner` string Required The account owner of the repository. The name is not case sensitive.
`repo` string Required The name of the repository without the `.git` extension. The name is not case sensitive.
`stack_number` integer Required The number that identifies the pull request stack.

Body parameters
Name, Type, Description
`pull_requests` array of integers Required An ordered list of pull request numbers to append to the stack, from the current top upward.

HTTP response status codes for "Add pull requests to a pull request stack"

Status code	Description
`200`	OK
`404`	Resource not found
`409`	Conflict. Returned when the stack is being modified by another request.
`422`	Validation failed. Returned when the request references pull requests that don't exist in the repository, or when the pull requests can't be appended to the stack.

Code samples for "Add pull requests to a pull request stack"

Request example

post/repos/{owner}/{repo}/stacks/{stack_number}/add

curl -L \
  -X POST \
  -H "Accept: application/vnd.github+json" \
  -H "Authorization: Bearer <YOUR-TOKEN>" \
  -H "X-GitHub-Api-Version: 2026-03-10" \
  https://api.github.com/repos/OWNER/REPO/stacks/STACK_NUMBER/add \
  -d '{"pull_requests":[104,102]}'

Response

Status: 200

{
  "id": 9876543,
  "number": 42,
  "node_id": "S_kwDOABCDEF4AAAAA",
  "url": "https://api.github.com/repos/octocat/hello-world/stacks/42",
  "base": {
    "ref": "main"
  },
  "open": true,
  "created_at": "2026-04-15T10:00:00Z",
  "pull_requests": [
    {
      "id": 100001,
      "node_id": "PR_kwDOABCDEF4AAAAA",
      "title": "Add user model",
      "state": "open",
      "merged_at": null,
      "draft": false,
      "html_url": "https://github.com/octocat/hello-world/pull/101",
      "user": {
        "login": "octocat",
        "id": 1,
        "node_id": "MDQ6VXNlcjE=",
        "avatar_url": "https://github.com/images/error/octocat_happy.gif",
        "gravatar_id": "",
        "url": "https://api.github.com/users/octocat",
        "html_url": "https://github.com/octocat",
        "followers_url": "https://api.github.com/users/octocat/followers",
        "following_url": "https://api.github.com/users/octocat/following{/other_user}",
        "gists_url": "https://api.github.com/users/octocat/gists{/gist_id}",
        "starred_url": "https://api.github.com/users/octocat/starred{/owner}{/repo}",
        "subscriptions_url": "https://api.github.com/users/octocat/subscriptions",
        "organizations_url": "https://api.github.com/users/octocat/orgs",
        "repos_url": "https://api.github.com/users/octocat/repos",
        "events_url": "https://api.github.com/users/octocat/events{/privacy}",
        "received_events_url": "https://api.github.com/users/octocat/received_events",
        "type": "User",
        "site_admin": false,
        "user_view_type": "public"
      },
      "number": 101,
      "url": "https://api.github.com/repos/octocat/hello-world/pulls/101",
      "head": {
        "ref": "user-model",
        "sha": "aaa1111aaa1111aaa1111aaa1111aaa1111aaa11",
        "repo": {
          "id": 1296269,
          "url": "https://api.github.com/repos/octocat/hello-world",
          "name": "hello-world"
        }
      },
      "base": {
        "ref": "main",
        "sha": "6dcb09b5b57875f334f61aebed695e2e4193db5e",
        "repo": {
          "id": 1296269,
          "url": "https://api.github.com/repos/octocat/hello-world",
          "name": "hello-world"
        }
      }
    },
    {
      "id": 100002,
      "node_id": "PR_kwDOABCDEF4AAAAB",
      "title": "Add user API",
      "state": "open",
      "merged_at": null,
      "draft": true,
      "html_url": "https://github.com/octocat/hello-world/pull/102",
      "user": {
        "login": "octocat",
        "id": 1,
        "node_id": "MDQ6VXNlcjE=",
        "avatar_url": "https://github.com/images/error/octocat_happy.gif",
        "gravatar_id": "",
        "url": "https://api.github.com/users/octocat",
        "html_url": "https://github.com/octocat",
        "followers_url": "https://api.github.com/users/octocat/followers",
        "following_url": "https://api.github.com/users/octocat/following{/other_user}",
        "gists_url": "https://api.github.com/users/octocat/gists{/gist_id}",
        "starred_url": "https://api.github.com/users/octocat/starred{/owner}{/repo}",
        "subscriptions_url": "https://api.github.com/users/octocat/subscriptions",
        "organizations_url": "https://api.github.com/users/octocat/orgs",
        "repos_url": "https://api.github.com/users/octocat/repos",
        "events_url": "https://api.github.com/users/octocat/events{/privacy}",
        "received_events_url": "https://api.github.com/users/octocat/received_events",
        "type": "User",
        "site_admin": false,
        "user_view_type": "public"
      },
      "number": 102,
      "url": "https://api.github.com/repos/octocat/hello-world/pulls/102",
      "head": {
        "ref": "user-api",
        "sha": "bbb2222bbb2222bbb2222bbb2222bbb2222bbb22",
        "repo": {
          "id": 1296269,
          "url": "https://api.github.com/repos/octocat/hello-world",
          "name": "hello-world"
        }
      },
      "base": {
        "ref": "user-model",
        "sha": "aaa1111aaa1111aaa1111aaa1111aaa1111aaa11",
        "repo": {
          "id": 1296269,
          "url": "https://api.github.com/repos/octocat/hello-world",
          "name": "hello-world"
        }
      }
    }
  ]
}

Remove pull requests from a pull request stack

Removes the unmerged pull requests from a stack. Pull requests that cannot be unstacked (for example, those that are queued for merge) are left in place. When pull requests remain in the stack, the updated stack is returned with a 200. When no pull requests remain, the stack is dissolved and a 204 is returned.

Fine-grained access tokens for "Remove pull requests from a pull request stack"

This endpoint works with the following fine-grained token types:

The fine-grained token must have the following permission set:

"Pull requests" repository permissions (write)

Parameters for "Remove pull requests from a pull request stack"

Headers
Name, Type, Description
`accept` string Setting to `application/vnd.github+json` is recommended.

Path parameters
Name, Type, Description
`owner` string Required The account owner of the repository. The name is not case sensitive.
`repo` string Required The name of the repository without the `.git` extension. The name is not case sensitive.
`stack_number` integer Required The number that identifies the pull request stack.

HTTP response status codes for "Remove pull requests from a pull request stack"

Status code	Description
`200`	OK
`204`	A header with no content is returned.
`404`	Resource not found
`409`	Conflict. Returned when the stack is being modified by another request.
`422`	Validation failed. Returned when the stack can't be unstacked because every pull request in it is locked and cannot be removed.

Code samples for "Remove pull requests from a pull request stack"

Request example

post/repos/{owner}/{repo}/stacks/{stack_number}/unstack

curl -L \
  -X POST \
  -H "Accept: application/vnd.github+json" \
  -H "Authorization: Bearer <YOUR-TOKEN>" \
  -H "X-GitHub-Api-Version: 2026-03-10" \
  https://api.github.com/repos/OWNER/REPO/stacks/STACK_NUMBER/unstack

Response

Status: 200

{
  "id": 9876543,
  "number": 42,
  "node_id": "S_kwDOABCDEF4AAAAA",
  "url": "https://api.github.com/repos/octocat/hello-world/stacks/42",
  "base": {
    "ref": "main"
  },
  "open": true,
  "created_at": "2026-04-15T10:00:00Z",
  "pull_requests": [
    {
      "id": 100001,
      "node_id": "PR_kwDOABCDEF4AAAAA",
      "title": "Add user model",
      "state": "open",
      "merged_at": null,
      "draft": false,
      "html_url": "https://github.com/octocat/hello-world/pull/101",
      "user": {
        "login": "octocat",
        "id": 1,
        "node_id": "MDQ6VXNlcjE=",
        "avatar_url": "https://github.com/images/error/octocat_happy.gif",
        "gravatar_id": "",
        "url": "https://api.github.com/users/octocat",
        "html_url": "https://github.com/octocat",
        "followers_url": "https://api.github.com/users/octocat/followers",
        "following_url": "https://api.github.com/users/octocat/following{/other_user}",
        "gists_url": "https://api.github.com/users/octocat/gists{/gist_id}",
        "starred_url": "https://api.github.com/users/octocat/starred{/owner}{/repo}",
        "subscriptions_url": "https://api.github.com/users/octocat/subscriptions",
        "organizations_url": "https://api.github.com/users/octocat/orgs",
        "repos_url": "https://api.github.com/users/octocat/repos",
        "events_url": "https://api.github.com/users/octocat/events{/privacy}",
        "received_events_url": "https://api.github.com/users/octocat/received_events",
        "type": "User",
        "site_admin": false,
        "user_view_type": "public"
      },
      "number": 101,
      "url": "https://api.github.com/repos/octocat/hello-world/pulls/101",
      "head": {
        "ref": "user-model",
        "sha": "aaa1111aaa1111aaa1111aaa1111aaa1111aaa11",
        "repo": {
          "id": 1296269,
          "url": "https://api.github.com/repos/octocat/hello-world",
          "name": "hello-world"
        }
      },
      "base": {
        "ref": "main",
        "sha": "6dcb09b5b57875f334f61aebed695e2e4193db5e",
        "repo": {
          "id": 1296269,
          "url": "https://api.github.com/repos/octocat/hello-world",
          "name": "hello-world"
        }
      }
    }
  ]
}