Base64

Format

^([A-Za-z0-9+/]{4})*([A-Za-z0-9+/]{3}=|[A-Za-z0-9+/]{2}==)?$

• How to check whether a string is Base64 encoded or not

Twitter

Access Token

[1-9][0-9]+-[0-9a-zA-Z]{40}

Username

/(^|[^@\w])@(\w{1,15})\b/

Tweets

View source

Facebook

Access Token

EAACEdEose0cBA[0-9A-Za-z]+

• https://grep.app/search?q=EAACEdEose0cBA%5B0-9A-Za-z%5D%2B&regexp=true

OAuth 2.0

[A-Za-z0-9]{125} (counting letters [2])

• https://developers.facebook.com/docs/facebook-login/guides/access-tokens

Instagram

OAuth 2.0

[0-9a-fA-F]{7}.[0-9a-fA-F]{32}

• https://developers.facebook.com/docs/instagram

Username

(?:@)([A-Za-z0-9_](?:(?:[A-Za-z0-9_]|(?:.(?!.))){0,28}(?:[A-Za-z0-9_]))?)

• https://blog.jstassen.com/2016/03/code-regex-for-instagram-username-and-hashtags/

Hashtag

(?:#)([A-Za-z0-9_](?:(?:[A-Za-z0-9_]|(?:.(?!.))){0,28}(?:[A-Za-z0-9_]))?)

• https://blog.jstassen.com/2016/03/code-regex-for-instagram-username-and-hashtags/

Google

API Key

AIza[0-9A-Za-z-_]{35}

OAuth 2.0 Secret Key

[0-9a-zA-Z-_]{24}

• https://www.ndss-symposium.org/wp-content/uploads/2019/02/ndss2019_04B-3_Meli_paper.pdf

OAuth 2.0 Auth Code

4/[0-9A-Za-z-_]+

• https://www.ndss-symposium.org/wp-content/uploads/2019/02/ndss2019_04B-3_Meli_paper.pdf

OAuth 2.0 Refresh Token

1/[0-9A-Za-z-]{43}|1/[0-9A-Za-z-]{64}

• https://www.ndss-symposium.org/wp-content/uploads/2019/02/ndss2019_04B-3_Meli_paper.pdf

OAuth 2.0 Access Token

ya29.[0-9A-Za-z-_]+

• https://www.ndss-symposium.org/wp-content/uploads/2019/02/ndss2019_04B-3_Meli_paper.pdf

GitHub

Personal Access Token (Classic)

^ghp_[a-zA-Z0-9]{36}$

• https://docs.github.com/en/authentication/keeping-your-account-and-data-secure/managing-your-personal-access-tokens

Personal Access Token (Fine-Grained)

^github_pat_[a-zA-Z0-9]{22}_[a-zA-Z0-9]{59}$

• https://docs.github.com/en/authentication/keeping-your-account-and-data-secure/managing-your-personal-access-tokens#creating-a-fine-grained-personal-access-token

OAuth 2.0 Access Token

^gho_[a-zA-Z0-9]{36}$

• https://docs.github.com/en/apps/oauth-apps/building-oauth-apps/authorizing-oauth-apps

User-to-Server Access Token

^ghu_[a-zA-Z0-9]{36}$

• https://docs.github.com/en/apps/creating-github-apps/authenticating-with-a-github-app/authenticating-with-a-github-app-on-behalf-of-a-user

Server-to-Server Access Token

^ghs_[a-zA-Z0-9]{36}$

• https://docs.github.com/en/apps/creating-github-apps/authenticating-with-a-github-app/about-authentication-with-a-github-app#authenticating-as-an-installation

Refresh Token

^ghr_[a-zA-Z0-9]{36}$

Foursquare

Client Key

[0-9a-zA-Z_][5,31]

Secret Key

R_[0-9a-f]{32}

• https://www.ndss-symposium.org/wp-content/uploads/2019/02/ndss2019_04B-3_Meli_paper.pdf

Picatic

API Key

sk_live_[0-9a-z]{32}

• https://www.ndss-symposium.org/wp-content/uploads/2019/02/ndss2019_04B-3_Meli_paper.pdf

Stripe

Standard API Key

sk_live_[0-9a-zA-Z]{24}

• https://www.ndss-symposium.org/wp-content/uploads/2019/02/ndss2019_04B-3_Meli_paper.pdf

Restricted API Key

rk_live_[0-9a-zA-Z]{99}

• Stripe API Keys Documentation

Square

Access Token

sqOatp-[0-9A-Za-z-_]{22}

• https://developer.squareup.com/reference/square/oauth-api/obtaintoken

OAuth Secret

q0csp-[ 0-9A-Za-z-_]{43}

• https://developer.squareup.com/reference/square/oauth-api/obtaintoken

PayPal / Braintree

Access Token

access_token,production$[0-9a-z]{161[0-9a,]{32}

Amazon Marketing Services

Auth Token

amzn.mws.[0-9a-f]{8}-[0-9a-f]{4}-10-9a-f1{4}-[0-9a,]{4}-[0-9a-f]{12}

Twilio

Access Token

55[0-9a-fA-F]{32}

Mailgun

Access Token

key-[0-9a-zA-Z]{32}

MailChimp

Access Token

[0-9a-f]{32}-us[0-9]{1,2}

Slack

OAuth v2 Bot Access Token

xoxb-[0-9]{11}-[0-9]{11}-[0-9a-zA-Z]{24}

• https://api.slack.com/authentication/oauth-v2

OAuth v2 User Access Token

xoxp-[0-9]{11}-[0-9]{11}-[0-9a-zA-Z]{24}

• https://api.slack.com/authentication/oauth-v2

OAuth v2 Configuration Token

xoxe.xoxp-1-[0-9a-zA-Z]{166}

• https://api.slack.com/authentication/rotation

OAuth v2 Refresh Token

xoxe-1-[0-9a-zA-Z]{147}

• https://api.slack.com/authentication/rotation

Webhook

T[a-zA-Z0-9_]{8}/B[a-zA-Z0-9_]{8}/[a-zA-Z0-9_]{24}

• https://api.slack.com/messaging/webhooks

Amazon Web Services

Access ID Key

AKIA[0-9A-Z]{16}

Secret Key

[0-9a-zA-Z/+]{40}

Google Cloud Platform

OAuth 2.0

[0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[0-9a-fA-F]{12}

API Key

[A-Za-z0-9_]{21}--[A-Za-z0-9_]{8}

Heroku

API Key

[0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{12}

• https://devcenter.heroku.com/articles/platform-api-quickstart

OAuth 2.0

[0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[0-9a-fA-F]{12}

OpenAI

User API Key

sk-[A-Za-z0-9]{20}T3BlbkFJ[A-Za-z0-9]{20}

User Project Key

sk-proj-[A-Za-z0-9]{20}T3BlbkFJ[A-Za-z0-9]{20}

Service ID

^[A-Za-z0-9]+(-*[A-Za-z0-9]+)*$

Service Key

sk-{SERVICE ID}-[A-Za-z0-9]{20}T3BlbkFJ[A-Za-z0-9]{20}