diff --git a/.changeset/warm-snakes-film.md b/.changeset/warm-snakes-film.md
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+++ b/.changeset/warm-snakes-film.md
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+---
+"@openauthjs/openauth": patch
+---
+
+Feat: Added Bitbucket Adapter
diff --git a/packages/openauth/src/adapter/bitbucket.ts b/packages/openauth/src/adapter/bitbucket.ts
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+++ b/packages/openauth/src/adapter/bitbucket.ts
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+import { Oauth2Adapter, Oauth2WrappedConfig } from "./oauth2.js"
+
+/**
+ * Represents the various scopes that can be used for Bitbucket API access.
+ *
+ * A descriptor lacking the scopes element is implicitly assumed to require all scopes and as a result, Bitbucket will require end users authorizing/installing the add-on to explicitly accept all scopes.
+ *
+ * @see {@link https://developer.atlassian.com/cloud/bitbucket/rest/intro/#bitbucket-oauth-2-0-scopes}
+ */
+type Scope =
+  | "project"
+  | "project:write"
+  | "project:admin"
+  | "repository"
+  | "repository:write"
+  | "repository:admin"
+  | "repository:delete"
+  | "pullrequest"
+  | "pullrequest:write"
+  | "issue"
+  | "issue:write"
+  | "wiki"
+  | "webhook"
+  | "snippet"
+  | "snippet:write"
+  | "email"
+  | "account"
+  | "account:write"
+  | "pipeline"
+  | "pipeline:write"
+  | "pipeline:variable"
+  | "runner"
+  | "runner:write"
+
+/**
+ * Configuration interface for Bitbucket OAuth2 integration.
+ *
+ * @extends Oauth2WrappedConfig
+ *
+ * @property {Scope[]} scopes - An array of scopes that specify the permissions requested from the user.
+ */
+export interface BitbucketConfig extends Oauth2WrappedConfig {
+  scopes: Scope[]
+}
+
+/**
+ * Creates an OAuth2 adapter configured for Bitbucket.
+ *
+ * This function configures an OAuth2 adapter specifically for Bitbucket by
+ * providing the necessary authorization and token endpoints.
+ *
+ * @see {@link https://developer.atlassian.com/cloud/bitbucket/rest/intro/#authentication}
+ */
+export function BitbucketAdapter(config: BitbucketConfig) {
+  return Oauth2Adapter({
+    ...config,
+    type: "bitbucket",
+    endpoint: {
+      authorization: "https://bitbucket.org/site/oauth2/authorize",
+      token: "https://bitbucket.org/site/oauth2/access_token",
+    },
+  })
+}