diff --git a/src/codegen/generators/typescript/headers.ts b/src/codegen/generators/typescript/headers.ts
index d630e2ae..8cbfaf31 100644
--- a/src/codegen/generators/typescript/headers.ts
+++ b/src/codegen/generators/typescript/headers.ts
@@ -67,10 +67,14 @@ export interface ProcessedHeadersData {
 }
 
 // Core generator function that works with processed data
-export async function generateTypescriptHeadersCore(
-  processedData: ProcessedHeadersData,
-  generator: TypescriptHeadersGeneratorInternal
-): Promise<Record<string, OutputModel | undefined>> {
+export async function generateTypescriptHeadersCore({
+  processedData,
+  context
+}: {
+  processedData: ProcessedHeadersData;
+  context: TypescriptHeadersContext;
+}): Promise<Record<string, OutputModel | undefined>> {
+  const {generator} = context;
   const modelinaGenerator = new TypeScriptFileGenerator({
     ...defaultCodegenTypescriptModelinaOptions,
     constraints: {
@@ -95,7 +99,7 @@ export async function generateTypescriptHeadersCore(
               return content;
             }
             return `${content}
-${generateTypescriptValidationCode({model, renderer})}`;
+${generateTypescriptValidationCode({model, renderer, context})}`;
           }
         }
       }
@@ -150,10 +154,10 @@ export async function generateTypescriptHeaders(
   }
 
   // Generate models using processed data
-  const channelModels = await generateTypescriptHeadersCore(
+  const channelModels = await generateTypescriptHeadersCore({
     processedData,
-    generator
-  );
+    context
+  });
 
   return {
     channelModels,
diff --git a/src/codegen/generators/typescript/payloads.ts b/src/codegen/generators/typescript/payloads.ts
index 773f2382..5d21baf5 100644
--- a/src/codegen/generators/typescript/payloads.ts
+++ b/src/codegen/generators/typescript/payloads.ts
@@ -323,10 +323,14 @@ export async function generateTypescriptPayloadsCore(
 
 // Core generator function that works with processed schema data
 // eslint-disable-next-line sonarjs/cognitive-complexity
-export async function generateTypescriptPayloadsCoreFromSchemas(
-  processedSchemaData: ProcessedPayloadSchemaData,
-  generator: TypeScriptPayloadGeneratorInternal
-): Promise<TypeScriptPayloadRenderType> {
+export async function generateTypescriptPayloadsCoreFromSchemas({
+  context,
+  processedSchemaData
+}: {
+  processedSchemaData: ProcessedPayloadSchemaData;
+  context: TypeScriptPayloadContext;
+}): Promise<TypeScriptPayloadRenderType> {
+  const generator = context.generator;
   const modelinaGenerator = new TypeScriptFileGenerator({
     ...defaultCodegenTypescriptModelinaOptions,
     presets: [
@@ -343,7 +347,7 @@ export async function generateTypescriptPayloadsCoreFromSchemas(
               return content;
             }
             return `${content}
-${generateTypescriptValidationCode({model, renderer})}`;
+${generateTypescriptValidationCode({model, renderer, context})}`;
           }
         }
       },
@@ -356,7 +360,7 @@ ${generateTypescriptValidationCode({model, renderer})}`;
 ${renderUnionUnmarshal(model, renderer)}
 ${renderUnionMarshal(model)}
 ${renderUnionUnmarshalByStatusCode(model)}
-${generator.includeValidation ? generateTypescriptValidationCode({model, renderer, asClassMethods: false}) : ''}
+${generator.includeValidation ? generateTypescriptValidationCode({model, renderer, asClassMethods: false, context}) : ''}
 `;
             }
             return content;
@@ -484,7 +488,7 @@ ${generator.includeValidation ? generateTypescriptValidationCode({model, rendere
 export async function generateTypescriptPayload(
   context: TypeScriptPayloadContext
 ): Promise<TypeScriptPayloadRenderType> {
-  const {asyncapiDocument, openapiDocument, inputType, generator} = context;
+  const {asyncapiDocument, openapiDocument, inputType} = context;
 
   let processedSchemaData: ProcessedPayloadSchemaData;
 
@@ -511,8 +515,8 @@ export async function generateTypescriptPayload(
   }
 
   // Generate final result using processed schema data
-  return generateTypescriptPayloadsCoreFromSchemas(
+  return generateTypescriptPayloadsCoreFromSchemas({
     processedSchemaData,
-    generator
-  );
+    context
+  });
 }
diff --git a/src/codegen/modelina/index.ts b/src/codegen/modelina/index.ts
index 93693b30..5fc38107 100644
--- a/src/codegen/modelina/index.ts
+++ b/src/codegen/modelina/index.ts
@@ -1,5 +1,9 @@
 import {ConstrainedMetaModel} from '@asyncapi/modelina';
 import {TypeScriptRenderer} from '@asyncapi/modelina/lib/types/generators/typescript/TypeScriptRenderer';
+import {
+  TypescriptHeadersContext,
+  TypeScriptPayloadContext
+} from '../generators';
 
 /**
  * Safe stringify that removes x- properties and circular references by assuming true
@@ -85,11 +89,13 @@ export function safeStringify(value: any): string {
 export function generateTypescriptValidationCode({
   model,
   renderer,
-  asClassMethods = true
+  asClassMethods = true,
+  context
 }: {
   model: ConstrainedMetaModel;
   renderer: TypeScriptRenderer;
   asClassMethods?: boolean;
+  context: TypeScriptPayloadContext | TypescriptHeadersContext;
 }) {
   renderer.dependencyManager.addTypeScriptDependency(
     '{Ajv, Options as AjvOptions, ErrorObject, ValidateFunction}',
@@ -114,6 +120,11 @@ export function generateTypescriptValidationCode({
     ? 'this.theCodeGenSchema'
     : 'theCodeGenSchema';
 
+  const vocabularies =
+    context.inputType === 'openapi'
+      ? 'ajvInstance.addVocabulary(["xml", "example"])'
+      : '';
+
   return `${schemaProperty} = ${safeStringify(model.originalInput)};
 ${methodPrefix}validate(context?: {data: any, ajvValidatorFunction?: ValidateFunction, ajvInstance?: Ajv, ajvOptions?: AjvOptions}): { valid: boolean; errors?: ErrorObject[]; } {
   const {data, ajvValidatorFunction} = context ?? {};
@@ -127,6 +138,7 @@ ${methodPrefix}validate(context?: {data: any, ajvValidatorFunction?: ValidateFun
 ${methodPrefix}createValidator(context?: {ajvInstance?: Ajv, ajvOptions?: AjvOptions}): ValidateFunction {
   const {ajvInstance} = {...context ?? {}, ajvInstance: new Ajv(context?.ajvOptions ?? {})};
   addFormats(ajvInstance);
+  ${vocabularies}
   const validate = ajvInstance.compile(${compileCall});
   return validate;
 }
diff --git a/src/codegen/types.ts b/src/codegen/types.ts
index f32330b3..23ba4346 100644
--- a/src/codegen/types.ts
+++ b/src/codegen/types.ts
@@ -81,6 +81,7 @@ export const zodOpenAPITypeScriptGenerators = z.discriminatedUnion('preset', [
   zodTypescriptParametersGenerator,
   zodTypescriptHeadersGenerator,
   zodTypescriptTypesGenerator,
+  zodTypescriptChannelsGenerator,
   zodCustomGenerator
 ]);
 
diff --git a/test/codegen/generators/typescript/__snapshots__/headers.spec.ts.snap b/test/codegen/generators/typescript/__snapshots__/headers.spec.ts.snap
index a12a832c..557baf3c 100644
--- a/test/codegen/generators/typescript/__snapshots__/headers.spec.ts.snap
+++ b/test/codegen/generators/typescript/__snapshots__/headers.spec.ts.snap
@@ -49,6 +49,7 @@ class DeletePetHeaders {
   public static createValidator(context?: {ajvInstance?: Ajv, ajvOptions?: AjvOptions}): ValidateFunction {
     const {ajvInstance} = {...context ?? {}, ajvInstance: new Ajv(context?.ajvOptions ?? {})};
     addFormats(ajvInstance);
+    ajvInstance.addVocabulary(["xml", "example"])
     const validate = ajvInstance.compile(this.theCodeGenSchema);
     return validate;
   }
@@ -106,6 +107,7 @@ class DeletePetHeaders {
   public static createValidator(context?: {ajvInstance?: Ajv, ajvOptions?: AjvOptions}): ValidateFunction {
     const {ajvInstance} = {...context ?? {}, ajvInstance: new Ajv(context?.ajvOptions ?? {})};
     addFormats(ajvInstance);
+    ajvInstance.addVocabulary(["xml", "example"])
     const validate = ajvInstance.compile(this.theCodeGenSchema);
     return validate;
   }
@@ -163,6 +165,7 @@ class DeletePetHeaders {
   public static createValidator(context?: {ajvInstance?: Ajv, ajvOptions?: AjvOptions}): ValidateFunction {
     const {ajvInstance} = {...context ?? {}, ajvInstance: new Ajv(context?.ajvOptions ?? {})};
     addFormats(ajvInstance);
+    ajvInstance.addVocabulary(["xml", "example"])
     const validate = ajvInstance.compile(this.theCodeGenSchema);
     return validate;
   }
@@ -254,6 +257,7 @@ class SimpleObjectHeaders {
   public static createValidator(context?: {ajvInstance?: Ajv, ajvOptions?: AjvOptions}): ValidateFunction {
     const {ajvInstance} = {...context ?? {}, ajvInstance: new Ajv(context?.ajvOptions ?? {})};
     addFormats(ajvInstance);
+  
     const validate = ajvInstance.compile(this.theCodeGenSchema);
     return validate;
   }
diff --git a/test/codegen/generators/typescript/__snapshots__/payload.spec.ts.snap b/test/codegen/generators/typescript/__snapshots__/payload.spec.ts.snap
index fd48149b..f634d244 100644
--- a/test/codegen/generators/typescript/__snapshots__/payload.spec.ts.snap
+++ b/test/codegen/generators/typescript/__snapshots__/payload.spec.ts.snap
@@ -129,6 +129,7 @@ export function validate(context?: {data: any, ajvValidatorFunction?: ValidateFu
 export function createValidator(context?: {ajvInstance?: Ajv, ajvOptions?: AjvOptions}): ValidateFunction {
   const {ajvInstance} = {...context ?? {}, ajvInstance: new Ajv(context?.ajvOptions ?? {})};
   addFormats(ajvInstance);
+  
   const validate = ajvInstance.compile(theCodeGenSchema);
   return validate;
 }
@@ -214,6 +215,7 @@ class SimpleObject2 {
   public static createValidator(context?: {ajvInstance?: Ajv, ajvOptions?: AjvOptions}): ValidateFunction {
     const {ajvInstance} = {...context ?? {}, ajvInstance: new Ajv(context?.ajvOptions ?? {})};
     addFormats(ajvInstance);
+  
     const validate = ajvInstance.compile(this.theCodeGenSchema);
     return validate;
   }
@@ -305,6 +307,7 @@ class SimpleObject {
   public static createValidator(context?: {ajvInstance?: Ajv, ajvOptions?: AjvOptions}): ValidateFunction {
     const {ajvInstance} = {...context ?? {}, ajvInstance: new Ajv(context?.ajvOptions ?? {})};
     addFormats(ajvInstance);
+  
     const validate = ajvInstance.compile(this.theCodeGenSchema);
     return validate;
   }