diff --git a/package-lock.json b/package-lock.json
index c9b6641f5b..f82babe596 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -30237,12 +30237,15 @@
         "@swagger-api/apidom-ast": "*",
         "@swagger-api/apidom-core": "*",
         "@swagger-api/apidom-ns-asyncapi-2": "*",
+        "@swagger-api/apidom-ns-openapi-3-0": "*",
         "@swagger-api/apidom-ns-openapi-3-1": "*",
         "@swagger-api/apidom-parser": "*",
         "@swagger-api/apidom-parser-adapter-asyncapi-json-2": "*",
         "@swagger-api/apidom-parser-adapter-asyncapi-yaml-2": "*",
         "@swagger-api/apidom-parser-adapter-json": "*",
+        "@swagger-api/apidom-parser-adapter-openapi-json-3-0": "*",
         "@swagger-api/apidom-parser-adapter-openapi-json-3-1": "*",
+        "@swagger-api/apidom-parser-adapter-openapi-yaml-3-0": "*",
         "@swagger-api/apidom-parser-adapter-openapi-yaml-3-1": "*",
         "@swagger-api/apidom-parser-adapter-yaml-1-2": "*",
         "@swagger-api/apidom-reference": "*",
@@ -35773,12 +35776,15 @@
         "@swagger-api/apidom-ast": "*",
         "@swagger-api/apidom-core": "*",
         "@swagger-api/apidom-ns-asyncapi-2": "*",
+        "@swagger-api/apidom-ns-openapi-3-0": "*",
         "@swagger-api/apidom-ns-openapi-3-1": "*",
         "@swagger-api/apidom-parser": "*",
         "@swagger-api/apidom-parser-adapter-asyncapi-json-2": "*",
         "@swagger-api/apidom-parser-adapter-asyncapi-yaml-2": "*",
         "@swagger-api/apidom-parser-adapter-json": "*",
+        "@swagger-api/apidom-parser-adapter-openapi-json-3-0": "*",
         "@swagger-api/apidom-parser-adapter-openapi-json-3-1": "*",
+        "@swagger-api/apidom-parser-adapter-openapi-yaml-3-0": "*",
         "@swagger-api/apidom-parser-adapter-openapi-yaml-3-1": "*",
         "@swagger-api/apidom-parser-adapter-yaml-1-2": "*",
         "@swagger-api/apidom-reference": "*",
diff --git a/packages/apidom-playground/package.json b/packages/apidom-playground/package.json
index 184f365e4f..02b7cab8e7 100644
--- a/packages/apidom-playground/package.json
+++ b/packages/apidom-playground/package.json
@@ -28,11 +28,14 @@
     "@swagger-api/apidom-ast": "*",
     "@swagger-api/apidom-core": "*",
     "@swagger-api/apidom-ns-asyncapi-2": "*",
+    "@swagger-api/apidom-ns-openapi-3-0": "*",
     "@swagger-api/apidom-ns-openapi-3-1": "*",
     "@swagger-api/apidom-parser": "*",
     "@swagger-api/apidom-parser-adapter-asyncapi-json-2": "*",
     "@swagger-api/apidom-parser-adapter-asyncapi-yaml-2": "*",
     "@swagger-api/apidom-parser-adapter-json": "*",
+    "@swagger-api/apidom-parser-adapter-openapi-json-3-0": "*",
+    "@swagger-api/apidom-parser-adapter-openapi-yaml-3-0": "*",
     "@swagger-api/apidom-parser-adapter-openapi-json-3-1": "*",
     "@swagger-api/apidom-parser-adapter-openapi-yaml-3-1": "*",
     "@swagger-api/apidom-parser-adapter-yaml-1-2": "*",
diff --git a/packages/apidom-playground/src/playground/apidom.worker.js b/packages/apidom-playground/src/playground/apidom.worker.js
index adb51fc7a5..2ab4554c21 100644
--- a/packages/apidom-playground/src/playground/apidom.worker.js
+++ b/packages/apidom-playground/src/playground/apidom.worker.js
@@ -4,6 +4,8 @@ import { dehydrate, from, sexprs, toValue } from '@swagger-api/apidom-core';
 import ApiDOMParser from '@swagger-api/apidom-parser';
 import * as jsonAdapter from '@swagger-api/apidom-parser-adapter-json';
 import * as yamlAdapter from '@swagger-api/apidom-parser-adapter-yaml-1-2';
+import * as openapi3_0AdapterJson from '@swagger-api/apidom-parser-adapter-openapi-json-3-0';
+import * as openapi3_0AdapterYaml from '@swagger-api/apidom-parser-adapter-openapi-yaml-3-0';
 import * as openapi3_1AdapterJson from '@swagger-api/apidom-parser-adapter-openapi-json-3-1';
 import * as openapi3_1AdapterYaml from '@swagger-api/apidom-parser-adapter-openapi-yaml-3-1';
 import * as asyncapi2AdapterJson from '@swagger-api/apidom-parser-adapter-asyncapi-json-2';
@@ -17,6 +19,8 @@ import {
 const parser = ApiDOMParser()
   .use(jsonAdapter)
   .use(yamlAdapter)
+  .use(openapi3_0AdapterJson)
+  .use(openapi3_0AdapterYaml)
   .use(openapi3_1AdapterJson)
   .use(openapi3_1AdapterYaml)
   .use(asyncapi2AdapterJson)
diff --git a/packages/apidom-playground/src/playground/components/left-pane/EditorControls.jsx b/packages/apidom-playground/src/playground/components/left-pane/EditorControls.jsx
index 41e808a10a..bc0bc9ee2e 100644
--- a/packages/apidom-playground/src/playground/components/left-pane/EditorControls.jsx
+++ b/packages/apidom-playground/src/playground/components/left-pane/EditorControls.jsx
@@ -93,9 +93,6 @@ const EditorControls = () => {
                 value={mediaType}
                 onChange={handleMediaTypeChange}
               >
-                <MenuItem value="application/json">application/json</MenuItem>
-                <MenuItem value="application/yaml">application/yaml</MenuItem>
-                <MenuItem value="text/yaml">text/yaml</MenuItem>
                 {mediaTypes.map((medType) => (
                   <MenuItem key={medType} value={medType}>
                     {medType}
diff --git a/packages/apidom-playground/src/playground/selectors.js b/packages/apidom-playground/src/playground/selectors.js
index 7f083380dd..a2385e4afa 100644
--- a/packages/apidom-playground/src/playground/selectors.js
+++ b/packages/apidom-playground/src/playground/selectors.js
@@ -2,12 +2,17 @@ import { createSelector } from 'swagger-adjust';
 import { isEmptyString, isNonEmptyString, isNull } from 'ramda-adjunct';
 import { from, traverse, createNamespace, sexprs, toValue } from '@swagger-api/apidom-core';
 /* eslint-disable camelcase */
+import openApi3_0NsPlugin, {
+  mediaTypes as openApi3_0MediaTypes,
+} from '@swagger-api/apidom-ns-openapi-3-0';
 import openApi3_1NsPlugin, {
   mediaTypes as openApi3_1MediaTypes,
 } from '@swagger-api/apidom-ns-openapi-3-1';
 import asyncApi2NsPlugin, {
   mediaTypes as asyncApi2MediaTypes,
 } from '@swagger-api/apidom-ns-asyncapi-2';
+import { mediaTypes as jsonMediaTypes } from '@swagger-api/apidom-parser-adapter-json';
+import { mediaTypes as yamlMediaTypes } from '@swagger-api/apidom-parser-adapter-yaml-1-2';
 
 export const selectSource = (state) => state.source;
 
@@ -31,6 +36,9 @@ export const selectApiDOMNamespace = createSelector(selectMediaType, (mediaType)
   if (isEmptyString(mediaType)) {
     return null;
   }
+  if (openApi3_0MediaTypes.includes(mediaType)) {
+    return createNamespace(openApi3_0NsPlugin);
+  }
   if (openApi3_1MediaTypes.includes(mediaType)) {
     return createNamespace(openApi3_1NsPlugin);
   }
@@ -104,7 +112,13 @@ export const selectCanDereference = createSelector(
 );
 
 export const selectMediaTypes = (() => {
-  const allMediaTypes = [...openApi3_1MediaTypes, ...asyncApi2MediaTypes];
+  const allMediaTypes = [
+    ...jsonMediaTypes,
+    ...yamlMediaTypes,
+    ...openApi3_0MediaTypes,
+    ...openApi3_1MediaTypes,
+    ...asyncApi2MediaTypes,
+  ];
   return () => allMediaTypes;
 })();
 /* eslint-enable */
diff --git a/packages/apidom-reference/src/index.ts b/packages/apidom-reference/src/index.ts
index ad5f87157b..fdbb2dc7e1 100644
--- a/packages/apidom-reference/src/index.ts
+++ b/packages/apidom-reference/src/index.ts
@@ -29,9 +29,11 @@ export { default as HttpResolver } from './resolve/resolvers/HttpResolver';
 export { default as Resolver } from './resolve/resolvers/Resolver';
 export { default as ResolveStrategy } from './resolve/strategies/ResolveStrategy';
 export { default as AsyncApi2ResolveStrategy } from './resolve/strategies/asyncapi-2';
+export { default as OpenApi3_0ResolveStrategy } from './resolve/strategies/openapi-3-0';
 export { default as OpenApi3_1ResolveStrategy } from './resolve/strategies/openapi-3-1';
 
 export { default as AsyncApi2DereferenceStrategy } from './dereference/strategies/asyncapi-2';
+export { default as OpenApi3_0DereferenceStrategy } from './dereference/strategies/openapi-3-0';
 export { default as OpenApi3_1DereferenceStrategy } from './dereference/strategies/openapi-3-1';
 
 export { default as options } from './options';