diff --git a/src/commands/securesign.ts b/src/commands/securesign.ts
index f143b95..275b6fe 100644
--- a/src/commands/securesign.ts
+++ b/src/commands/securesign.ts
@@ -4,6 +4,7 @@ import { Client } from '..';
 import Build from './securesign_build';
 import Init from './securesign_init';
 import Account from './securesign_account';
+import ActivateKey from './securesign_activatekey';
 
 export default class SecureSign extends Command {
   constructor(client: Client) {
@@ -12,7 +13,7 @@ export default class SecureSign extends Command {
     this.description = 'Runs SecureSign CLI commands';
     this.usage = `Run ${this.client.config.prefix}${this.name} [subcommand] for usage information`;
     this.aliases = ['ss'];
-    this.subcmds = [Build, Init, Account];
+    this.subcmds = [Build, Init, Account, ActivateKey];
     this.enabled = true;
   }
 
diff --git a/src/commands/securesign_activatekey.ts b/src/commands/securesign_activatekey.ts
new file mode 100644
index 0000000..995e785
--- /dev/null
+++ b/src/commands/securesign_activatekey.ts
@@ -0,0 +1,45 @@
+import { Message } from 'eris';
+import axios from 'axios';
+import { Client } from '..';
+import { Command, RichEmbed } from '../class';
+
+export default class SecureSign_ActivateKey extends Command {
+  constructor(client: Client) {
+    super(client);
+    this.name = 'activatekey';
+    this.description = 'Claims an Activation Key';
+    this.usage = `${this.client.config.prefix}securesign activatekey [key]`;
+    this.enabled = true;
+  }
+
+  public async run(message: Message, args: string[]) {
+    try {
+      if (!args[0]) return this.client.commands.get('help').run(message, ['securesign', this.name]);
+      const account = await this.client.db.Account.findOne({ userID: message.author.id });
+      if (!account) return message.channel.createMessage(`${this.client.stores.emojis.error} ***Account not found***`);
+      if (!account.hash) return message.channel.createMessage(`${this.client.stores.emojis.error} ***Account not initialized***`);
+      const msg = await message.channel.createMessage(`${this.client.stores.emojis.loading} ***Activating key...***`);
+      try {
+        await axios({
+          method: 'POST',
+          url: 'https://api.securesign.org/account/keys/activation',
+          headers: { Authorization: account.hash, 'Content-Type': 'application/json' },
+          data: JSON.stringify({ key: args[0] }),
+        });
+      } catch (error) {
+        const { code } = error.response.data;
+        if (code === 1001) {
+          await this.client.db.Account.updateOne({ hash: account.hash }, { $set: { hash: null } });
+          this.client.getDMChannel(account.userID).then((channel) => channel.createMessage('Your SecureSign password has been reset - please reinitialize your SecureSign account')).catch();
+          return msg.edit(`${this.client.stores.emojis.error} ***Authentication failed***`);
+        }
+        if (code === 1002) return msg.edit(`${this.client.stores.emojis.error} ***Invalid Activation Key***`);
+        if (code === 1003) return msg.edit(`${this.client.stores.emojis.error} ***${error.response.data.message}***`);
+        throw error;
+      }
+      return msg.edit(`${this.client.stores.emojis.success} ***Activation Key Accepted***`);
+    } catch (error) {
+      return this.client.util.handleError(error, message, this);
+    }
+  }
+}