diff --git a/@planetarium/lib9c/src/actions/charge_action_point.ts b/@planetarium/lib9c/src/actions/charge_action_point.ts
new file mode 100644
index 0000000000..73ca5ebf4f
--- /dev/null
+++ b/@planetarium/lib9c/src/actions/charge_action_point.ts
@@ -0,0 +1,37 @@
+import type { Address } from "@planetarium/account";
+import { BencodexDictionary, Dictionary, type Value } from "@planetarium/bencodex";
+import { GameAction, type GameActionArgs } from "./common.js";
+
+/**
+ * The arguments of the `ChargeActionPoint` action.
+ */
+export type ChargeActionPointArgs = {
+  avatarAddress: Address;
+} & GameActionArgs;
+
+/**
+ * The `ChargeActionPoint` action is used to charge action points for an avatar.
+ */
+export class ChargeActionPoint extends GameAction {
+  protected readonly type_id: string = "charge_action_point3";
+
+  public readonly avatarAddress: Address;
+
+  /**
+   * Create a new `ChargeActionPoint` action.
+   * @param params The arguments of the `ChargeActionPoint` action.
+   */
+  constructor({ avatarAddress, id }: ChargeActionPointArgs) {
+    super({ id });
+    this.avatarAddress = avatarAddress;
+  }
+
+  /**
+   * Serialize the action data to Bencodex format.
+   */
+  protected plain_value_internal(): Dictionary {
+    return new BencodexDictionary([
+      ["avatarAddress", this.avatarAddress.toBytes()],
+    ]);
+}
+}
\ No newline at end of file
diff --git a/@planetarium/lib9c/src/index.ts b/@planetarium/lib9c/src/index.ts
index bf11110b53..1373e63f67 100644
--- a/@planetarium/lib9c/src/index.ts
+++ b/@planetarium/lib9c/src/index.ts
@@ -3,6 +3,7 @@ export {
   type ClaimStakeRewardArgs,
 } from "./actions/claim_stake_reward.js";
 export { Stake, type StakeArgs } from "./actions/stake.js";
+export { ChargeActionPoint, type ChargeActionPointArgs } from "./actions/charge_action_point.js";
 export { DailyReward, type DailyRewardArgs } from "./actions/daily_reward.js";
 export {
   TransferAsset,
diff --git a/@planetarium/lib9c/tests/actions/charge_action_point.test.ts b/@planetarium/lib9c/tests/actions/charge_action_point.test.ts
new file mode 100644
index 0000000000..841c208bc6
--- /dev/null
+++ b/@planetarium/lib9c/tests/actions/charge_action_point.test.ts
@@ -0,0 +1,23 @@
+import { describe } from "vitest";
+import { ChargeActionPoint, uuidToGuidBytes } from "../../src/index.js";
+import { runTests } from "./common.js";
+import { avatarAddress } from "./fixtures.js";
+
+describe("ChargeActionPoint", () => {
+  describe("odin", () => {
+    runTests("valid case", [
+      new ChargeActionPoint({
+        id: uuidToGuidBytes("ae195a5e-b43f-4c6d-8fd3-9f38311a45eb"),
+        avatarAddress,
+      }),
+    ]);
+  });
+  describe("heimdall", () => {
+    runTests("valid case", [
+      new ChargeActionPoint({
+        id: uuidToGuidBytes("97b69171-6482-4e11-b2c9-1c671615321b"),
+        avatarAddress,
+      }),
+    ]);
+  });
+});