diff --git a/src/deauthorizer.ts b/src/deauthorizer.ts
new file mode 100644
index 00000000..c1ccf566
--- /dev/null
+++ b/src/deauthorizer.ts
@@ -0,0 +1,38 @@
+/*
+ * Copyright (c) 2020, salesforce.com, inc.
+ * All rights reserved.
+ * Licensed under the BSD 3-Clause license.
+ * For full license text, see LICENSE.txt file in the repo root or https://opensource.org/licenses/BSD-3-Clause
+ */
+
+import { JsonMap } from '@salesforce/ts-types';
+
+export abstract class Deauthorizer<T = JsonMap> {
+  public async removeAll(): Promise<Deauthorizer.Result> {
+    const result = {
+      successes: [],
+      failures: [],
+    } as Deauthorizer.Result;
+
+    const environments = await this.find();
+    for (const id of Object.keys(environments)) {
+      try {
+        await this.remove(id);
+        result.successes.push(id);
+      } catch {
+        result.failures.push(id);
+      }
+    }
+    return result;
+  }
+
+  public abstract find(): Promise<Record<string, T>>;
+  public abstract remove(id: string): Promise<boolean>;
+}
+
+export namespace Deauthorizer {
+  export type Result = {
+    successes: string[];
+    failures: string[];
+  };
+}
diff --git a/src/exported.ts b/src/exported.ts
index 499b3767..13fc355e 100644
--- a/src/exported.ts
+++ b/src/exported.ts
@@ -7,6 +7,7 @@
 
 export { generateTableChoices } from './util';
 export { Deployable, Deployer } from './deployer';
+export { Deauthorizer } from './deauthorizer';
 export { Prompter } from './prompter';
 export { SfHook } from './hooks';
 export * from './types';
diff --git a/src/hooks.ts b/src/hooks.ts
index 637533d9..2f498d61 100644
--- a/src/hooks.ts
+++ b/src/hooks.ts
@@ -10,13 +10,15 @@ import { Hook, Hooks } from '@oclif/core/lib/interfaces/hooks';
 import { cli } from 'cli-ux';
 import { Duration, env } from '@salesforce/kit';
 import { Deployer } from './deployer';
-import { EnvList, EnvDisplay, JsonObject, Deploy, Login } from './types';
+import { EnvList, EnvDisplay, JsonObject, Deploy, Login, Logout } from './types';
+import { Deauthorizer } from './deauthorizer';
 
 interface SfHooks<T = unknown> extends Hooks {
   'sf:env:list': EnvList.HookMeta<T & JsonObject>;
   'sf:env:display': EnvDisplay.HookMeta<T & JsonObject>;
   'sf:deploy': Deploy.HookMeta<T & Deployer>;
   'sf:login': Login.HookMeta;
+  'sf:logout': Logout.HookMeta<T & Deauthorizer>;
 }
 
 type GenericHook<T extends keyof SfHooks, P> = Hook<T, SfHooks<P>>;
@@ -42,4 +44,5 @@ export namespace SfHook {
   export type EnvDisplay<T> = GenericHook<'sf:env:display', T>;
   export type Deploy<T> = GenericHook<'sf:deploy', T>;
   export type Login = Hook<'sf:login', SfHooks>;
+  export type Logout = Hook<'sf:logout', SfHooks>;
 }
diff --git a/src/types/index.ts b/src/types/index.ts
index 22558544..970f1813 100644
--- a/src/types/index.ts
+++ b/src/types/index.ts
@@ -5,6 +5,7 @@
  * For full license text, see LICENSE.txt file in the repo root or https://opensource.org/licenses/BSD-3-Clause
  */
 
+import { Deauthorizer } from '../deauthorizer';
 import { Deployer } from '../deployer';
 
 export type JsonObject = {
@@ -101,3 +102,10 @@ export namespace Login {
     return: void;
   };
 }
+
+export namespace Logout {
+  export type HookMeta<T extends Deauthorizer> = {
+    options: {};
+    return: T;
+  };
+}