diff --git a/packages/docusaurus-plugin-openapi-docs/src/index.test.ts b/packages/docusaurus-plugin-openapi-docs/src/index.test.ts
new file mode 100644
index 000000000..074cf4a0a
--- /dev/null
+++ b/packages/docusaurus-plugin-openapi-docs/src/index.test.ts
@@ -0,0 +1,242 @@
+/* ============================================================================
+ * Copyright (c) Palo Alto Networks
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ * ========================================================================== */
+
+import { getPluginConfig, getPluginInstances } from "./index";
+
+describe("index", () => {
+  describe("getPluginInstances", () => {
+    it("should filter plugins to only include docusaurus-plugin-openapi-docs instances", () => {
+      const plugins = [
+        ["@docusaurus/plugin-content-docs", { id: "docs" }],
+        ["docusaurus-plugin-openapi-docs", { id: "api", config: {} }],
+        ["@docusaurus/plugin-content-pages", { id: "pages" }],
+        ["docusaurus-plugin-openapi-docs", { id: "api-v2", config: {} }],
+      ];
+
+      const result = getPluginInstances(plugins);
+
+      expect(result).toEqual([
+        ["docusaurus-plugin-openapi-docs", { id: "api", config: {} }],
+        ["docusaurus-plugin-openapi-docs", { id: "api-v2", config: {} }],
+      ]);
+    });
+
+    it("should return empty array when no openapi-docs plugin instances exist", () => {
+      const plugins = [
+        ["@docusaurus/plugin-content-docs", { id: "docs" }],
+        ["@docusaurus/plugin-content-pages", { id: "pages" }],
+      ];
+
+      const result = getPluginInstances(plugins);
+
+      expect(result).toEqual([]);
+    });
+
+    it("should return empty array when plugins array is empty", () => {
+      const plugins = [];
+
+      const result = getPluginInstances(plugins);
+
+      expect(result).toEqual([]);
+    });
+
+    it("should handle single openapi-docs plugin instance", () => {
+      const plugins = [
+        ["@docusaurus/plugin-content-docs", { id: "docs" }],
+        ["docusaurus-plugin-openapi-docs", { id: "api", config: {} }],
+      ];
+
+      const result = getPluginInstances(plugins);
+
+      expect(result).toEqual([
+        ["docusaurus-plugin-openapi-docs", { id: "api", config: {} }],
+      ]);
+    });
+  });
+
+  describe("getPluginConfig", () => {
+    it("should return config for matching plugin ID", () => {
+      const pluginInstances = [
+        [
+          "docusaurus-plugin-openapi-docs",
+          { id: "api", config: { foo: "bar" } },
+        ],
+        [
+          "docusaurus-plugin-openapi-docs",
+          { id: "api-v2", config: { baz: "qux" } },
+        ],
+      ];
+
+      const result = getPluginConfig(pluginInstances, "api");
+
+      expect(result).toEqual({ id: "api", config: { foo: "bar" } });
+    });
+
+    it("should return correct config when multiple instances exist", () => {
+      const pluginInstances = [
+        [
+          "docusaurus-plugin-openapi-docs",
+          { id: "api", config: { version: "1.0" } },
+        ],
+        [
+          "docusaurus-plugin-openapi-docs",
+          { id: "api-v2", config: { version: "2.0" } },
+        ],
+        [
+          "docusaurus-plugin-openapi-docs",
+          { id: "internal", config: { version: "internal" } },
+        ],
+      ];
+
+      const result = getPluginConfig(pluginInstances, "api-v2");
+
+      expect(result).toEqual({ id: "api-v2", config: { version: "2.0" } });
+    });
+
+    it("should return config with docsPluginId when present", () => {
+      const pluginInstances = [
+        [
+          "docusaurus-plugin-openapi-docs",
+          {
+            id: "api",
+            config: { foo: "bar" },
+            docsPluginId: "custom-docs",
+          },
+        ],
+      ];
+
+      const result = getPluginConfig(pluginInstances, "api");
+
+      expect(result).toEqual({
+        id: "api",
+        config: { foo: "bar" },
+        docsPluginId: "custom-docs",
+      });
+    });
+
+    it("should throw error when plugin ID not found", () => {
+      const pluginInstances = [
+        ["docusaurus-plugin-openapi-docs", { id: "api", config: {} }],
+        ["docusaurus-plugin-openapi-docs", { id: "api-v2", config: {} }],
+      ];
+
+      expect(() => {
+        getPluginConfig(pluginInstances, "non-existent");
+      }).toThrow();
+    });
+
+    it("should throw error when called with empty plugin instances array", () => {
+      const pluginInstances = [];
+
+      expect(() => {
+        getPluginConfig(pluginInstances, "api");
+      }).toThrow();
+    });
+  });
+
+  describe("getPluginConfig with getPluginInstances integration", () => {
+    it("should work correctly when chained together (bug fix verification)", () => {
+      // This test verifies the bug fix where getPluginConfig should be called
+      // with pluginInstances (filtered array) not the raw plugins array
+      const plugins = [
+        ["@docusaurus/plugin-content-docs", { id: "docs" }],
+        [
+          "docusaurus-plugin-openapi-docs",
+          { id: "api", config: { test: "value" } },
+        ],
+        ["@docusaurus/plugin-content-pages", { id: "pages" }],
+        [
+          "docusaurus-plugin-openapi-docs",
+          { id: "api-v2", config: { test: "value2" } },
+        ],
+      ];
+
+      // First get plugin instances (this is what the bug fix does)
+      const pluginInstances = getPluginInstances(plugins);
+
+      // Then get the specific plugin config
+      const result = getPluginConfig(pluginInstances, "api");
+
+      expect(result).toEqual({ id: "api", config: { test: "value" } });
+    });
+
+    it("should return incorrect result when getPluginConfig is called with raw plugins array with conflicting IDs", () => {
+      // This test demonstrates the bug that was fixed
+      // When there are plugins with the same ID but different plugin types,
+      // calling getPluginConfig with raw plugins array could return wrong config
+      const plugins = [
+        [
+          "@docusaurus/plugin-content-docs",
+          { id: "api", routeBasePath: "/docs" },
+        ],
+        [
+          "docusaurus-plugin-openapi-docs",
+          { id: "api", config: { test: "value" } },
+        ],
+      ];
+
+      // This is the bug - calling getPluginConfig with raw plugins array
+      // It will match the FIRST plugin with id "api", not the openapi-docs one
+      const result = getPluginConfig(plugins, "api");
+
+      // This returns the wrong config (from content-docs instead of openapi-docs)
+      expect(result).toEqual({ id: "api", routeBasePath: "/docs" });
+      expect(result).not.toEqual({ id: "api", config: { test: "value" } });
+
+      // The correct way is to filter first
+      const pluginInstances = getPluginInstances(plugins);
+      const correctResult = getPluginConfig(pluginInstances, "api");
+      expect(correctResult).toEqual({ id: "api", config: { test: "value" } });
+    });
+
+    it("should handle single plugin instance scenario", () => {
+      const plugins = [
+        ["@docusaurus/plugin-content-docs", { id: "docs" }],
+        [
+          "docusaurus-plugin-openapi-docs",
+          { id: "default", config: { api: "config" } },
+        ],
+      ];
+
+      const pluginInstances = getPluginInstances(plugins);
+      const result = getPluginConfig(pluginInstances, "default");
+
+      expect(result).toEqual({ id: "default", config: { api: "config" } });
+      expect(pluginInstances.length).toBe(1);
+    });
+
+    it("should handle multiple plugin instances scenario", () => {
+      const plugins = [
+        [
+          "docusaurus-plugin-openapi-docs",
+          { id: "api-public", config: { public: true } },
+        ],
+        [
+          "docusaurus-plugin-openapi-docs",
+          { id: "api-internal", config: { public: false } },
+        ],
+        ["@docusaurus/plugin-content-docs", { id: "docs" }],
+      ];
+
+      const pluginInstances = getPluginInstances(plugins);
+
+      expect(pluginInstances.length).toBe(2);
+
+      const publicConfig = getPluginConfig(pluginInstances, "api-public");
+      const internalConfig = getPluginConfig(pluginInstances, "api-internal");
+
+      expect(publicConfig).toEqual({
+        id: "api-public",
+        config: { public: true },
+      });
+      expect(internalConfig).toEqual({
+        id: "api-internal",
+        config: { public: false },
+      });
+    });
+  });
+});
diff --git a/packages/docusaurus-plugin-openapi-docs/src/index.ts b/packages/docusaurus-plugin-openapi-docs/src/index.ts
index 570fcf2b5..dbbe48763 100644
--- a/packages/docusaurus-plugin-openapi-docs/src/index.ts
+++ b/packages/docusaurus-plugin-openapi-docs/src/index.ts
@@ -81,11 +81,11 @@ export function getDocsPluginConfig(
   return;
 }
 
-function getPluginConfig(plugins: any[], pluginId: string): any {
+export function getPluginConfig(plugins: any[], pluginId: string): any {
   return plugins.filter((data) => data[1].id === pluginId)[0][1];
 }
 
-function getPluginInstances(plugins: any[]): any {
+export function getPluginInstances(plugins: any[]): any {
   return plugins.filter((data) => data[0] === "docusaurus-plugin-openapi-docs");
 }
 
@@ -677,7 +677,7 @@ custom_edit_url: null
           let targetDocsPluginId: any;
           if (pluginId) {
             try {
-              const pluginConfig = getPluginConfig(plugins, pluginId);
+              const pluginConfig = getPluginConfig(pluginInstances, pluginId);
               targetConfig = pluginConfig.config ?? {};
               targetDocsPluginId = pluginConfig.docsPluginId;
             } catch {
@@ -744,7 +744,7 @@ custom_edit_url: null
           let targetDocsPluginId: any;
           if (pluginId) {
             try {
-              const pluginConfig = getPluginConfig(plugins, pluginId);
+              const pluginConfig = getPluginConfig(pluginInstances, pluginId);
               targetConfig = pluginConfig.config ?? {};
               targetDocsPluginId = pluginConfig.docsPluginId;
             } catch {
@@ -837,7 +837,7 @@ custom_edit_url: null
           let targetConfig: any;
           if (pluginId) {
             try {
-              const pluginConfig = getPluginConfig(plugins, pluginId);
+              const pluginConfig = getPluginConfig(pluginInstances, pluginId);
               targetConfig = pluginConfig.config ?? {};
             } catch {
               console.error(
@@ -894,7 +894,7 @@ custom_edit_url: null
           let targetConfig: any;
           if (pluginId) {
             try {
-              const pluginConfig = getPluginConfig(plugins, pluginId);
+              const pluginConfig = getPluginConfig(pluginInstances, pluginId);
               targetConfig = pluginConfig.config ?? {};
             } catch {
               console.error(