diff --git a/deno-runtime/handlers/api-handler.ts b/deno-runtime/handlers/api-handler.ts
index b112748b4..44db52897 100644
--- a/deno-runtime/handlers/api-handler.ts
+++ b/deno-runtime/handlers/api-handler.ts
@@ -5,7 +5,7 @@ import { Defined, JsonRpcError } from "jsonrpc-lite";
 import { AppAccessorsInstance } from "../lib/accessors/mod.ts";
 
 export default async function apiHandler(call: string, params: unknown): Promise<JsonRpcError | Defined> {
-    const [, path, methodName] = call.split(':');
+    const [, path, httpMethod] = call.split(':');
 
     const endpoint = AppObjectRegistry.get<IApiEndpoint>(`api:${path}`);
     const logger = AppObjectRegistry.get<Logger>('logger');
@@ -14,10 +14,10 @@ export default async function apiHandler(call: string, params: unknown): Promise
         return new JsonRpcError(`Endpoint ${path} not found`, -32000);
     }
 
-    const method = endpoint[methodName as keyof IApiEndpoint];
+    const method = endpoint[httpMethod as keyof IApiEndpoint];
 
     if (typeof method !== 'function') {
-        return new JsonRpcError(`Method ${methodName} not found`, -32000);
+        return new JsonRpcError(`${path}'s ${httpMethod} not exists`, -32000);
     }
 
     const [ request, endpointInfo ] = params as Array<unknown>;
diff --git a/deno-runtime/handlers/tests/api-handler.test.ts b/deno-runtime/handlers/tests/api-handler.test.ts
new file mode 100644
index 000000000..3744b30e0
--- /dev/null
+++ b/deno-runtime/handlers/tests/api-handler.test.ts
@@ -0,0 +1,79 @@
+// deno-lint-ignore-file no-explicit-any
+import { assertEquals, assertObjectMatch } from 'https://deno.land/std@0.203.0/assert/mod.ts';
+import { beforeEach, describe, it } from 'https://deno.land/std@0.203.0/testing/bdd.ts';
+import { spy } from "https://deno.land/std@0.203.0/testing/mock.ts";
+
+import { AppObjectRegistry } from '../../AppObjectRegistry.ts';
+import { assertInstanceOf } from "https://deno.land/std@0.203.0/assert/assert_instance_of.ts";
+import { JsonRpcError } from "jsonrpc-lite";
+import { IApiEndpoint } from "@rocket.chat/apps-engine/definition/api/IApiEndpoint.ts";
+import apiHandler from "../api-handler.ts";
+
+describe('handlers > api', () => {
+    const mockEndpoint: IApiEndpoint = {
+        path: '/test',
+        // deno-lint-ignore no-unused-vars
+        get: (request: any, endpoint: any, read: any, modify: any, http: any, persis: any) => Promise.resolve('ok'),
+        // deno-lint-ignore no-unused-vars
+        post: (request: any, endpoint: any, read: any, modify: any, http: any, persis: any) => Promise.resolve('ok'),
+        // deno-lint-ignore no-unused-vars
+        put: (request: any, endpoint: any, read: any, modify: any, http: any, persis: any) => { throw new Error('Method execution error example') },
+    }
+
+    beforeEach(() => {
+        AppObjectRegistry.clear();
+        AppObjectRegistry.set('api:/test', mockEndpoint);
+    });
+
+    it('correctly handles execution of an api endpoint method GET', async () => {
+        const _spy = spy(mockEndpoint, 'get');
+        
+        const result = await apiHandler('api:/test:get', ['request', 'endpointInfo']);
+
+        assertEquals(result, 'ok');
+        assertEquals(_spy.calls[0].args.length, 6);
+        assertEquals(_spy.calls[0].args[0], 'request');
+        assertEquals(_spy.calls[0].args[1], 'endpointInfo');
+    });
+
+    it('correctly handles execution of an api endpoint method POST', async () => {
+        const _spy = spy(mockEndpoint, 'post');
+        
+        const result = await apiHandler('api:/test:post', ['request', 'endpointInfo']);
+
+        assertEquals(result, 'ok');
+        assertEquals(_spy.calls[0].args.length, 6);
+        assertEquals(_spy.calls[0].args[0], 'request');
+        assertEquals(_spy.calls[0].args[1], 'endpointInfo');
+    });
+
+    it('correctly handles an error if the method not exists for the selected endpoint', async () => {
+        const result = await apiHandler(`api:/test:delete`, ['request', 'endpointInfo']);
+
+        assertInstanceOf(result, JsonRpcError)
+        assertObjectMatch(result, {
+            message: `/test's delete not exists`,
+            code: -32000
+        })
+    });
+
+    it('correctly handles an error if endpoint not exists', async () => {
+        const result = await apiHandler(`api:/error:get`, ['request', 'endpointInfo']);
+
+        assertInstanceOf(result, JsonRpcError)
+        assertObjectMatch(result, {
+            message: `Endpoint /error not found`,
+            code: -32000
+        })
+    });
+
+    it('correctly handles an error if the method execution fails', async () => {
+        const result = await apiHandler(`api:/test:put`, ['request', 'endpointInfo']);
+
+        assertInstanceOf(result, JsonRpcError)
+        assertObjectMatch(result, {
+            message: `Method execution error example`,
+            code: -32000
+        })
+    });
+});