curl -X POST 'https://api.github.com/repos/example-owner/example-repo/secret-scanning/custom-patterns' \
  -H "Authorization: Bearer $GITHUB_TOKEN" \
  -H 'Accept: application/vnd.github+json' \
  -H 'X-GitHub-Api-Version: 2026-03-10' \
  -H 'Content-Type: application/json' \
  -d '{
  "patterns": [
    {
      "name": "example-name",
      "pattern": "example-pattern",
      "start_delimiter": "\\A|[^0-9A-Za-z]",
      "end_delimiter": "\\z|[^0-9A-Za-z]",
      "must_match": [
        "example-must-match"
      ],
      "must_not_match": [
        "example-must-not-match"
      ]
    }
  ]
}'

# POST /repos/{owner}/{repo}/secret-scanning/custom-patterns (GitHub API)
Base URL: https://api.github.com
Auth: Authorization; GitHub token; required.
Request formats: application/json.
Last verified: 2026-10-20

> Bulk create repository custom patterns

## 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 POST 'https://api.github.com/repos/example-owner/example-repo/secret-scanning/custom-patterns' \
  -H "Authorization: Bearer $GITHUB_TOKEN" \
  -H 'Accept: application/vnd.github+json' \
  -H 'X-GitHub-Api-Version: 2026-03-10' \
  -H 'Content-Type: application/json' \
  -d '{
  "patterns": [
    {
      "name": "example-name",
      "pattern": "example-pattern",
      "start_delimiter": "\\A|[^0-9A-Za-z]",
      "end_delimiter": "\\z|[^0-9A-Za-z]",
      "must_match": [
        "example-must-match"
      ],
      "must_not_match": [
        "example-must-not-match"
      ]
    }
  ]
}'

## Parameters
| Name | In | Type | Required | Description |
| :--- | :--- | :--- | :--- | :--- |
| owner | path | string | Yes | The account owner of the repository. The name is not case sensitive. |
| repo | path | string | Yes | The name of the repository without the `.git` extension. The name is not case... |
| patterns | body | object[] | Yes | The list of custom patterns to create (maximum 100). |

## Response example
{"created_patterns":[{}]}

---
Need an API key? Get one at https://github.com/settings/tokens

POST

POST /repos/{owner}/{repo}/secret-scanning/custom-patterns — GitHub API

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

GitHub API

Bulk create repository custom patterns

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
→ 266 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 POST 'https://api.github.com/repos/example-owner/example-repo/secret-scanning/custom-patterns' \  -H "Authorization: Bearer $GITHUB_TOKEN" \  -H 'Accept: application/vnd.github+json' \  -H 'X-GitHub-Api-Version: 2026-03-10' \  -H 'Content-Type: application/json' \  -d '{  "patterns": [    {      "name": "example-name",      "pattern": "example-pattern",      "start_delimiter": "\\A|[^0-9A-Za-z]",      "end_delimiter": "\\z|[^0-9A-Za-z]",      "must_match": [        "example-must-match"      ],      "must_not_match": [        "example-must-not-match"      ]    }  ]}'

Parameters

Name	In	Type	Required	Description
owner	path	string	Yes	The account owner of the repository. The name is not case sensitive.
repo	path	string	Yes	The name of the repository without the `.git` extension. The name is not case sensitive.
patterns	body	object[]	Yes	The list of custom patterns to create (maximum 100).

Response 200 OK

{
  "created_patterns": [
    {
      "id": 0,
      "name": "string",
      "pattern": "string",
      "slug": "string",
      "state": "published",
      "push_protection_enabled": true,
      "start_delimiter": "string",
      "end_delimiter": "string",
      "must_match": [
        "string"
      ],
      "must_not_match": [
        "string"
      ],
      "custom_pattern_version": "string",
      "created_at": "2026-09-03T00:00:00Z",
      "updated_at": "2026-09-03T00:00:00Z"
    }
  ]
}

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