diff --git a/packages/cactus-plugin-keychain-google-sm/src/main/json/openapi.json b/packages/cactus-plugin-keychain-google-sm/src/main/json/openapi.json
index 994e8b59bf..00ae4eed9a 100644
--- a/packages/cactus-plugin-keychain-google-sm/src/main/json/openapi.json
+++ b/packages/cactus-plugin-keychain-google-sm/src/main/json/openapi.json
@@ -26,23 +26,23 @@
         "summary": "Retrieves the contents of a keychain entry from the backend.",
         "parameters": [],
         "requestBody": {
-          "$ref": "https://raw.githubusercontent.com/hyperledger/cactus/v0.10.0/packages/cactus-core-api/src/main/json/openapi.json#/components/requestBodies/keychain_get_entry_request_body"
+          "$ref": "https://raw.githubusercontent.com/hyperledger/cactus/v1.0.0-rc.1/packages/cactus-core-api/src/main/json/openapi.json#/components/requestBodies/keychain_get_entry_request_body"
         },
         "responses": {
           "200": {
-            "$ref": "https://raw.githubusercontent.com/hyperledger/cactus/v0.10.0/packages/cactus-core-api/src/main/json/openapi.json#/components/responses/keychain_get_entry_200"
+            "$ref": "https://raw.githubusercontent.com/hyperledger/cactus/v1.0.0-rc.1/packages/cactus-core-api/src/main/json/openapi.json#/components/responses/keychain_get_entry_200"
           },
           "400": {
-            "$ref": "https://raw.githubusercontent.com/hyperledger/cactus/v0.10.0/packages/cactus-core-api/src/main/json/openapi.json#/components/responses/keychain_get_entry_400"
+            "$ref": "https://raw.githubusercontent.com/hyperledger/cactus/v1.0.0-rc.1/packages/cactus-core-api/src/main/json/openapi.json#/components/responses/keychain_get_entry_400"
           },
           "401": {
-            "$ref": "https://raw.githubusercontent.com/hyperledger/cactus/v0.10.0/packages/cactus-core-api/src/main/json/openapi.json#/components/responses/keychain_get_entry_401"
+            "$ref": "https://raw.githubusercontent.com/hyperledger/cactus/v1.0.0-rc.1/packages/cactus-core-api/src/main/json/openapi.json#/components/responses/keychain_get_entry_401"
           },
           "404": {
-            "$ref": "https://raw.githubusercontent.com/hyperledger/cactus/v0.10.0/packages/cactus-core-api/src/main/json/openapi.json#/components/responses/keychain_get_entry_404"
+            "$ref": "https://raw.githubusercontent.com/hyperledger/cactus/v1.0.0-rc.1/packages/cactus-core-api/src/main/json/openapi.json#/components/responses/keychain_get_entry_404"
           },
           "500": {
-            "$ref": "https://raw.githubusercontent.com/hyperledger/cactus/v0.10.0/packages/cactus-core-api/src/main/json/openapi.json#/components/responses/keychain_get_entry_500"
+            "$ref": "https://raw.githubusercontent.com/hyperledger/cactus/v1.0.0-rc.1/packages/cactus-core-api/src/main/json/openapi.json#/components/responses/keychain_get_entry_500"
           }
         }
       }
@@ -59,20 +59,20 @@
         "summary": "Sets a value under a key on the keychain backend.",
         "parameters": [],
         "requestBody": {
-          "$ref": "https://raw.githubusercontent.com/hyperledger/cactus/v0.10.0/packages/cactus-core-api/src/main/json/openapi.json#/components/requestBodies/keychain_set_entry_request_body"
+          "$ref": "https://raw.githubusercontent.com/hyperledger/cactus/v1.0.0-rc.1/packages/cactus-core-api/src/main/json/openapi.json#/components/requestBodies/keychain_set_entry_request_body"
         },
         "responses": {
           "200": {
-            "$ref": "https://raw.githubusercontent.com/hyperledger/cactus/v0.10.0/packages/cactus-core-api/src/main/json/openapi.json#/components/responses/keychain_set_entry_200"
+            "$ref": "https://raw.githubusercontent.com/hyperledger/cactus/v1.0.0-rc.1/packages/cactus-core-api/src/main/json/openapi.json#/components/responses/keychain_set_entry_200"
           },
           "400": {
-            "$ref": "https://raw.githubusercontent.com/hyperledger/cactus/v0.10.0/packages/cactus-core-api/src/main/json/openapi.json#/components/responses/keychain_set_entry_400"
+            "$ref": "https://raw.githubusercontent.com/hyperledger/cactus/v1.0.0-rc.1/packages/cactus-core-api/src/main/json/openapi.json#/components/responses/keychain_set_entry_400"
           },
           "401": {
-            "$ref": "https://raw.githubusercontent.com/hyperledger/cactus/v0.10.0/packages/cactus-core-api/src/main/json/openapi.json#/components/responses/keychain_set_entry_401"
+            "$ref": "https://raw.githubusercontent.com/hyperledger/cactus/v1.0.0-rc.1/packages/cactus-core-api/src/main/json/openapi.json#/components/responses/keychain_set_entry_401"
           },
           "500": {
-            "$ref": "https://raw.githubusercontent.com/hyperledger/cactus/v0.10.0/packages/cactus-core-api/src/main/json/openapi.json#/components/responses/keychain_set_entry_500"
+            "$ref": "https://raw.githubusercontent.com/hyperledger/cactus/v1.0.0-rc.1/packages/cactus-core-api/src/main/json/openapi.json#/components/responses/keychain_set_entry_500"
           }
         }
       }
@@ -89,11 +89,11 @@
         "summary": "Deletes an entry under a key on the keychain backend.",
         "parameters": [],
         "requestBody": {
-          "$ref": "https://raw.githubusercontent.com/hyperledger/cactus/v0.10.0/packages/cactus-core-api/src/main/json/openapi.json#/components/requestBodies/keychain_delete_entry_request_body"
+          "$ref": "https://raw.githubusercontent.com/hyperledger/cactus/v1.0.0-rc.1/packages/cactus-core-api/src/main/json/openapi.json#/components/requestBodies/keychain_delete_entry_request_body"
         },
         "responses": {
           "200": {
-            "$ref": "https://raw.githubusercontent.com/hyperledger/cactus/v0.10.0/packages/cactus-core-api/src/main/json/openapi.json#/components/responses/keychain_delete_entry_200"
+            "$ref": "https://raw.githubusercontent.com/hyperledger/cactus/v1.0.0-rc.1/packages/cactus-core-api/src/main/json/openapi.json#/components/responses/keychain_delete_entry_200"
           }
         }
       }
@@ -110,20 +110,20 @@
         "summary": "Checks that an entry exists under a key on the keychain backend.",
         "parameters": [],
         "requestBody": {
-          "$ref": "https://raw.githubusercontent.com/hyperledger/cactus/v0.10.0/packages/cactus-core-api/src/main/json/openapi.json#/components/requestBodies/keychain_has_entry_request_body"
+          "$ref": "https://raw.githubusercontent.com/hyperledger/cactus/v1.0.0-rc.1/packages/cactus-core-api/src/main/json/openapi.json#/components/requestBodies/keychain_has_entry_request_body"
         },
         "responses": {
           "200": {
-            "$ref": "https://raw.githubusercontent.com/hyperledger/cactus/v0.10.0/packages/cactus-core-api/src/main/json/openapi.json#/components/responses/keychain_has_entry_200"
+            "$ref": "https://raw.githubusercontent.com/hyperledger/cactus/v1.0.0-rc.1/packages/cactus-core-api/src/main/json/openapi.json#/components/responses/keychain_has_entry_200"
           },
           "400": {
-            "$ref": "https://raw.githubusercontent.com/hyperledger/cactus/v0.10.0/packages/cactus-core-api/src/main/json/openapi.json#/components/responses/keychain_has_entry_400"
+            "$ref": "https://raw.githubusercontent.com/hyperledger/cactus/v1.0.0-rc.1/packages/cactus-core-api/src/main/json/openapi.json#/components/responses/keychain_has_entry_400"
           },
           "401": {
-            "$ref": "https://raw.githubusercontent.com/hyperledger/cactus/v0.10.0/packages/cactus-core-api/src/main/json/openapi.json#/components/responses/keychain_has_entry_401"
+            "$ref": "https://raw.githubusercontent.com/hyperledger/cactus/v1.0.0-rc.1/packages/cactus-core-api/src/main/json/openapi.json#/components/responses/keychain_has_entry_401"
           },
           "500": {
-            "$ref": "https://raw.githubusercontent.com/hyperledger/cactus/v0.10.0/packages/cactus-core-api/src/main/json/openapi.json#/components/responses/keychain_has_entry_500"
+            "$ref": "https://raw.githubusercontent.com/hyperledger/cactus/v1.0.0-rc.1/packages/cactus-core-api/src/main/json/openapi.json#/components/responses/keychain_has_entry_500"
           }
         }
       }
diff --git a/packages/cactus-plugin-keychain-google-sm/src/test/typescript/integration/openapi/openapi-validation.test.ts b/packages/cactus-plugin-keychain-google-sm/src/test/typescript/integration/openapi/openapi-validation.test.ts
new file mode 100644
index 0000000000..8f157f02f4
--- /dev/null
+++ b/packages/cactus-plugin-keychain-google-sm/src/test/typescript/integration/openapi/openapi-validation.test.ts
@@ -0,0 +1,280 @@
+import test, { Test } from "tape-promise/tape";
+import { v4 as uuidv4 } from "uuid";
+import http from "http";
+import type { AddressInfo } from "net";
+import express from "express";
+import bodyParser from "body-parser";
+
+import {
+  LogLevelDesc,
+  IListenOptions,
+  Servers,
+} from "@hyperledger/cactus-common";
+
+import {
+  Configuration,
+  DefaultApi as KeychainGoogleSmApi,
+  DeleteKeychainEntryRequestV1,
+  GetKeychainEntryRequestV1,
+  HasKeychainEntryRequestV1,
+  IPluginKeychainGoogleSmOptions,
+  PluginKeychainGoogleSm,
+  SetKeychainEntryRequestV1,
+} from "../../../../main/typescript/public-api";
+
+import { SecretManagerServiceClientMock } from "../../mock/plugin-keychain-google-sm-mock";
+
+import { installOpenapiValidationMiddleware } from "@hyperledger/cactus-core";
+import OAS from "../../../../main/json/openapi.json";
+
+const logLevel: LogLevelDesc = "TRACE";
+const testCase = "Test cactus-plugin-keychain-azure-kv openapi validation";
+
+test(testCase, async (t: Test) => {
+  const options: IPluginKeychainGoogleSmOptions = {
+    instanceId: uuidv4(),
+    keychainId: uuidv4(),
+    logLevel: logLevel,
+    backend: new SecretManagerServiceClientMock({
+      logLevel: logLevel,
+    }),
+  };
+  const plugin = new PluginKeychainGoogleSm(options);
+
+  const expressApp = express();
+  expressApp.use(bodyParser.json({ limit: "250mb" }));
+  const server = http.createServer(expressApp);
+  const listenOptions: IListenOptions = {
+    hostname: "0.0.0.0",
+    port: 0,
+    server,
+  };
+  const addressInfo = (await Servers.listen(listenOptions)) as AddressInfo;
+  test.onFinish(async () => await Servers.shutdown(server));
+  const { address, port } = addressInfo;
+  const apiHost = `http://${address}:${port}`;
+  const configuration = new Configuration({ basePath: apiHost });
+  const apiClient = new KeychainGoogleSmApi(configuration);
+
+  await installOpenapiValidationMiddleware({
+    logLevel,
+    app: expressApp,
+    apiSpec: OAS,
+  });
+
+  await plugin.getOrCreateWebServices();
+  await plugin.registerWebServices(expressApp);
+
+  const key = `${uuidv4()}?${uuidv4()}`;
+  const value = uuidv4();
+
+  const fSet = "setKeychainEntryV1";
+  const fGet = "getKeychainEntryV1";
+  const fHas = "hasKeychainEntryV1";
+  const fDelete = "deleteKeychainEntryV1";
+  const cOk = "without bad request error";
+  const cWithoutParams = "not sending all required parameters";
+  const cInvalidParams = "sending invalid parameters";
+
+  test(`${testCase} - ${fSet} - ${cOk}`, async (t2: Test) => {
+    const res = await apiClient.setKeychainEntryV1({
+      key,
+      value,
+    });
+    t2.equal(res.status, 200, `Endpoint ${fSet}: response.status === 200 OK`);
+    t2.end();
+  });
+
+  test(`${testCase} - ${fGet} - ${cOk}`, async (t2: Test) => {
+    const res = await apiClient.getKeychainEntryV1({ key });
+    t2.equal(res.status, 200, `Endpoint ${fGet}: response.status === 200 OK`);
+    t2.end();
+  });
+
+  test(`${testCase} - ${fHas} - ${cOk}`, async (t2: Test) => {
+    const res = await apiClient.hasKeychainEntryV1({ key });
+    t2.equal(res.status, 200, `Endpoint ${fHas}: response.status === 200 OK`);
+    t2.end();
+  });
+
+  test(`${testCase} - ${fDelete} - ${cOk}`, async (t2: Test) => {
+    const res = await apiClient.deleteKeychainEntryV1({ key });
+    t2.equal(
+      res.status,
+      200,
+      `Endpoint ${fDelete}: response.status === 200 OK`,
+    );
+    t2.end();
+  });
+
+  test(`${testCase} - ${fSet} - ${cWithoutParams}`, async (t2: Test) => {
+    try {
+      await apiClient.setKeychainEntryV1(({
+        value,
+      } as any) as SetKeychainEntryRequestV1);
+    } catch (e) {
+      t2.equal(
+        e.response.status,
+        400,
+        `Endpoint ${fSet} without required key: response.status === 400 OK`,
+      );
+      const fields = e.response.data.map((param: any) =>
+        param.path.replace(".body.", ""),
+      );
+      t2.ok(fields.includes("key"), "Rejected because key is required");
+    }
+    t2.end();
+  });
+
+  test(`${testCase} - ${fGet} - ${cWithoutParams}`, async (t2: Test) => {
+    try {
+      await apiClient.getKeychainEntryV1(
+        ({} as any) as GetKeychainEntryRequestV1,
+      );
+    } catch (e) {
+      t2.equal(
+        e.response.status,
+        400,
+        `Endpoint ${fGet} without required key: response.status === 400 OK`,
+      );
+      const fields = e.response.data.map((param: any) =>
+        param.path.replace(".body.", ""),
+      );
+      t2.ok(fields.includes("key"), "Rejected because key is required");
+    }
+    t2.end();
+  });
+
+  test(`${testCase} - ${fHas} - ${cWithoutParams}`, async (t2: Test) => {
+    try {
+      await apiClient.hasKeychainEntryV1(
+        ({} as any) as HasKeychainEntryRequestV1,
+      );
+    } catch (e) {
+      t2.equal(
+        e.response.status,
+        400,
+        `Endpoint ${fHas} without required key: response.status === 400 OK`,
+      );
+      const fields = e.response.data.map((param: any) =>
+        param.path.replace(".body.", ""),
+      );
+      t2.ok(fields.includes("key"), "Rejected because key is required");
+    }
+    t2.end();
+  });
+
+  test(`${testCase} - ${fDelete} - ${cWithoutParams}`, async (t2: Test) => {
+    try {
+      await apiClient.deleteKeychainEntryV1(
+        ({} as any) as DeleteKeychainEntryRequestV1,
+      );
+    } catch (e) {
+      t2.equal(
+        e.response.status,
+        400,
+        `Endpoint ${fDelete} without required key: response.status === 400 OK`,
+      );
+      const fields = e.response.data.map((param: any) =>
+        param.path.replace(".body.", ""),
+      );
+      t2.ok(fields.includes("key"), "Rejected because key is required");
+    }
+    t2.end();
+  });
+
+  test(`${testCase} - ${fSet} - ${cInvalidParams}`, async (t2: Test) => {
+    try {
+      await apiClient.setKeychainEntryV1(({
+        key,
+        value,
+        fake: 4,
+      } as any) as SetKeychainEntryRequestV1);
+    } catch (e) {
+      t2.equal(
+        e.response.status,
+        400,
+        `Endpoint ${fSet} with fake=4: response.status === 400 OK`,
+      );
+      const fields = e.response.data.map((param: any) =>
+        param.path.replace(".body.", ""),
+      );
+      t2.ok(
+        fields.includes("fake"),
+        "Rejected because fake is not a valid parameter",
+      );
+    }
+    t2.end();
+  });
+
+  test(`${testCase} - ${fGet} - ${cInvalidParams}`, async (t2: Test) => {
+    try {
+      await apiClient.getKeychainEntryV1(({
+        key,
+        fake: 4,
+      } as any) as GetKeychainEntryRequestV1);
+    } catch (e) {
+      t2.equal(
+        e.response.status,
+        400,
+        `Endpoint ${fGet} with fake=4: response.status === 400 OK`,
+      );
+      const fields = e.response.data.map((param: any) =>
+        param.path.replace(".body.", ""),
+      );
+      t2.ok(
+        fields.includes("fake"),
+        "Rejected because fake is not a valid parameter",
+      );
+    }
+    t2.end();
+  });
+
+  test(`${testCase} - ${fHas} - ${cInvalidParams}`, async (t2: Test) => {
+    try {
+      await apiClient.hasKeychainEntryV1(({
+        key,
+        fake: 4,
+      } as any) as HasKeychainEntryRequestV1);
+    } catch (e) {
+      t2.equal(
+        e.response.status,
+        400,
+        `Endpoint ${fHas} with fake=4: response.status === 400 OK`,
+      );
+      const fields = e.response.data.map((param: any) =>
+        param.path.replace(".body.", ""),
+      );
+      t2.ok(
+        fields.includes("fake"),
+        "Rejected because fake is not a valid parameter",
+      );
+    }
+    t2.end();
+  });
+
+  test(`${testCase} - ${fDelete} - ${cInvalidParams}`, async (t2: Test) => {
+    try {
+      await apiClient.deleteKeychainEntryV1(({
+        key,
+        fake: 4,
+      } as any) as DeleteKeychainEntryRequestV1);
+    } catch (e) {
+      t2.equal(
+        e.response.status,
+        400,
+        `Endpoint ${fDelete} with fake=4: response.status === 400 OK`,
+      );
+      const fields = e.response.data.map((param: any) =>
+        param.path.replace(".body.", ""),
+      );
+      t2.ok(
+        fields.includes("fake"),
+        "Rejected because fake is not a valid parameter",
+      );
+    }
+    t2.end();
+  });
+
+  t.end();
+});