diff --git a/packages/bruno-js/src/runtime/assert-runtime.js b/packages/bruno-js/src/runtime/assert-runtime.js
index f826b37b5..22078efe2 100644
--- a/packages/bruno-js/src/runtime/assert-runtime.js
+++ b/packages/bruno-js/src/runtime/assert-runtime.js
@@ -8,6 +8,7 @@ const { interpolateString } = require('../interpolate-string');
 const { executeQuickJsVm } = require('../sandbox/quickjs');
 
 const Ajv = require('ajv');
+const addFormats = require('ajv-formats');
 const { expect } = chai;
 chai.use(require('chai-string'));
 chai.use(function (chai, utils) {
@@ -26,9 +27,30 @@ chai.use(function (chai, utils) {
 });
 
 // Custom assertion for JSON Schema validation
+const defaultAjv = new Ajv({ allErrors: true });
+addFormats(defaultAjv);
+
+const SUPPORTED_SCHEMA_VERSIONS = [
+  'http://json-schema.org/draft-07/schema#',
+  'http://json-schema.org/draft-07/schema'
+];
+
 chai.use(function (chai) {
   chai.Assertion.addMethod('jsonSchema', function (schema, ajvOptions) {
-    const ajv = new Ajv({ allErrors: true, ...ajvOptions });
+    if (schema && schema.$schema && !SUPPORTED_SCHEMA_VERSIONS.includes(schema.$schema)) {
+      this.assert(
+        false,
+        `Unsupported JSON Schema version: "${schema.$schema}". Bruno currently only supports Draft-07 (http://json-schema.org/draft-07/schema#). Please update your schema to be Draft-07 compatible and remove the $schema property.`,
+        `Unsupported JSON Schema version: "${schema.$schema}".`
+      );
+    }
+    let ajv;
+    if (ajvOptions) {
+      ajv = new Ajv({ allErrors: true, ...ajvOptions });
+      addFormats(ajv);
+    } else {
+      ajv = defaultAjv;
+    }
     let validate;
     try {
       validate = ajv.compile(schema);
diff --git a/packages/bruno-js/src/sandbox/bundle-libraries.js b/packages/bruno-js/src/sandbox/bundle-libraries.js
index 34041363f..58abf568d 100644
--- a/packages/bruno-js/src/sandbox/bundle-libraries.js
+++ b/packages/bruno-js/src/sandbox/bundle-libraries.js
@@ -15,6 +15,7 @@ const bundleLibraries = async () => {
     import * as cryptoJs from 'crypto-js';
     import tv4 from "tv4";
     import Ajv from "ajv";
+    import addFormats from "ajv-formats";
     globalThis.expect = expect;
     globalThis.assert = assert;
     globalThis.moment = moment;
@@ -23,6 +24,7 @@ const bundleLibraries = async () => {
     globalThis.Buffer = Buffer;
     globalThis.tv4 = tv4;
     globalThis.Ajv = Ajv;
+    globalThis.addFormats = addFormats;
     globalThis.requireObject = {
       ...(globalThis.requireObject || {}),
       'chai': { expect, assert },
@@ -32,7 +34,8 @@ const bundleLibraries = async () => {
       'atob': atob,
       'crypto-js': cryptoJs,
       'tv4': tv4,
-      'ajv': Ajv
+      'ajv': Ajv,
+      'ajv-formats': addFormats
     };
 `;
 
diff --git a/packages/bruno-js/src/sandbox/quickjs/shims/test.js b/packages/bruno-js/src/sandbox/quickjs/shims/test.js
index e3666e5c5..d2c7f7dbb 100644
--- a/packages/bruno-js/src/sandbox/quickjs/shims/test.js
+++ b/packages/bruno-js/src/sandbox/quickjs/shims/test.js
@@ -84,9 +84,29 @@ const addBruShimToContext = (vm, __brunoTestResults) => {
     `
       (function() {
         var Ajv = require('ajv');
+        var addFormats = require('ajv-formats');
+        var defaultAjv = new Ajv({ allErrors: true });
+        addFormats(defaultAjv);
+        var SUPPORTED_SCHEMA_VERSIONS = [
+          'http://json-schema.org/draft-07/schema#',
+          'http://json-schema.org/draft-07/schema'
+        ];
         var proto = Object.getPrototypeOf(expect(null));
         proto.jsonSchema = function(schema, ajvOptions) {
-          var ajv = new Ajv(Object.assign({ allErrors: true }, ajvOptions || {}));
+          if (schema && schema.$schema && !SUPPORTED_SCHEMA_VERSIONS.includes(schema.$schema)) {
+            this.assert(
+              false,
+              'Unsupported JSON Schema version: "' + schema.$schema + '". Bruno currently only supports Draft-07 (http://json-schema.org/draft-07/schema#). Please update your schema to be Draft-07 compatible and remove the $schema property.',
+              'Unsupported JSON Schema version: "' + schema.$schema + '".'
+            );
+          }
+          var ajv;
+          if (ajvOptions) {
+            ajv = new Ajv(Object.assign({ allErrors: true }, ajvOptions));
+            addFormats(ajv);
+          } else {
+            ajv = defaultAjv;
+          }
           var validate;
           try {
             validate = ajv.compile(schema);
diff --git a/packages/bruno-js/tests/runtime.spec.js b/packages/bruno-js/tests/runtime.spec.js
index 4b00b4391..0ed6733c6 100644
--- a/packages/bruno-js/tests/runtime.spec.js
+++ b/packages/bruno-js/tests/runtime.spec.js
@@ -501,6 +501,40 @@ describe('runtime', () => {
         const schema = { type: 'array' };
         chai.expect(body).to.not.have.jsonSchema(schema);
       });
+
+      it('should throw a clear error for unsupported Draft 2020-12 $schema', () => {
+        const body = { name: 'John' };
+        const schema = {
+          $schema: 'https://json-schema.org/draft/2020-12/schema',
+          type: 'object',
+          properties: { name: { type: 'string' } }
+        };
+        expect(() => chai.expect(body).to.have.jsonSchema(schema)).toThrow(/Unsupported JSON Schema version.*2020-12.*only supports Draft-07/);
+      });
+
+      it('should throw a clear error for unsupported Draft 2019-09 $schema', () => {
+        const body = { name: 'John' };
+        const schema = {
+          $schema: 'https://json-schema.org/draft/2019-09/schema',
+          type: 'object',
+          properties: { name: { type: 'string' } }
+        };
+        expect(() => chai.expect(body).to.have.jsonSchema(schema)).toThrow(/Unsupported JSON Schema version.*2019-09.*only supports Draft-07/);
+      });
+
+      it('should allow explicit Draft-07 $schema', () => {
+        const body = { name: 'John', age: 30 };
+        const schema = {
+          $schema: 'http://json-schema.org/draft-07/schema#',
+          type: 'object',
+          properties: {
+            name: { type: 'string' },
+            age: { type: 'number' }
+          },
+          required: ['name', 'age']
+        };
+        chai.expect(body).to.have.jsonSchema(schema);
+      });
     });
   });
 });
diff --git a/packages/bruno-tests/collection/scripting/api/res/jsonSchema.bru b/packages/bruno-tests/collection/scripting/api/res/jsonSchema.bru
index 027d9c9e7..0eb68dee9 100644
--- a/packages/bruno-tests/collection/scripting/api/res/jsonSchema.bru
+++ b/packages/bruno-tests/collection/scripting/api/res/jsonSchema.bru
@@ -23,7 +23,27 @@ body:json {
       "street": "123 Main St",
       "city": "Springfield",
       "zip": "62701"
-    }
+    },
+    "website": "https://example.com/john",
+    "createdAt": "2024-01-15T10:30:00Z",
+    "birthDate": "1994-05-20",
+    "loginTime": "10:30:00Z",
+    "ipv4": "192.168.1.1",
+    "ipv6": "::1",
+    "id": "550e8400-e29b-41d4-a716-446655440000",
+    "encodedData": "SGVsbG8gV29ybGQ=",
+    "int32Val": 2147483647,
+    "int64Val": 2147483648,
+    "floatVal": 3.14,
+    "doubleVal": 1.7976931348623157e+308,
+    "duration": "P3Y6M4DT12H30M5S",
+    "hostname": "example.com",
+    "regexPattern": "^[a-z]+$",
+    "jsonPointer": "/foo/bar/0",
+    "uriRef": "/relative/path",
+    "uriTemplate": "https://example.com/{user}",
+    "invalidRegex": "[invalid",
+    "invalidUriTemplate": "https://example.com/{invalid"
   }
 }
 
@@ -166,7 +186,7 @@ tests {
     expect(res.getBody()).to.have.jsonSchema(schema);
   });
 
-  test("jsonSchema with ajvOptions", function() {
+  test("jsonSchema with ajvOptions - allErrors", function() {
     const schema = {
       type: 'object',
       properties: {
@@ -178,6 +198,525 @@ tests {
     expect(res.getBody()).to.have.jsonSchema(schema, { allErrors: true });
   });
 
+  test("jsonSchema with ajvOptions - format validation with allErrors", function() {
+    const schema = {
+      type: 'object',
+      properties: {
+        email: { type: 'string', format: 'email' },
+        website: { type: 'string', format: 'uri' }
+      },
+      required: ['email', 'website']
+    };
+    expect(res.getBody()).to.have.jsonSchema(schema, { allErrors: true });
+  });
+
+  test("jsonSchema with ajvOptions - format rejection with allErrors", function() {
+    const schema = {
+      type: 'object',
+      properties: {
+        name: { type: 'string', format: 'email' },
+        age: { type: 'string', format: 'uri' }
+      },
+      required: ['name', 'age']
+    };
+    expect(res.getBody()).to.not.have.jsonSchema(schema, { allErrors: true });
+  });
+
+  test("jsonSchema with ajvOptions - additionalProperties false", function() {
+    const schema = {
+      type: 'object',
+      properties: {
+        name: { type: 'string' }
+      },
+      additionalProperties: false
+    };
+    expect(res.getBody()).to.not.have.jsonSchema(schema, { allErrors: true });
+  });
+
+  test("jsonSchema with ajvOptions - coerceTypes allows string as number", function() {
+    const schema = {
+      type: 'object',
+      properties: {
+        zip: { type: 'integer' }
+      },
+      required: ['zip']
+    };
+    // zip is "62701" (string) - fails without coercion
+    expect(res.getBody().address).to.not.have.jsonSchema(schema);
+    // passes with coerceTypes since "62701" can be coerced to integer
+    expect(res.getBody().address).to.have.jsonSchema(schema, { coerceTypes: true });
+  });
+
+  test("jsonSchema with ajvOptions - coerceTypes allows number as string", function() {
+    const schema = {
+      type: 'object',
+      properties: {
+        age: { type: 'string' }
+      },
+      required: ['age']
+    };
+    // age is 30 (number) - fails without coercion
+    expect(res.getBody()).to.not.have.jsonSchema(schema);
+    // passes with coerceTypes since 30 can be coerced to "30"
+    expect(res.getBody()).to.have.jsonSchema(schema, { coerceTypes: true });
+  });
+
+  test("jsonSchema with ajvOptions - strict false allows unknown keywords", function() {
+    const schema = {
+      type: 'object',
+      properties: {
+        name: { type: 'string', customKeyword: true }
+      },
+      required: ['name']
+    };
+    // unknown keyword "customKeyword" throws in strict mode (default)
+    expect(() => expect(res.getBody()).to.have.jsonSchema(schema)).to.throw('JSON schema compile error');
+    // passes with strict: false
+    expect(res.getBody()).to.have.jsonSchema(schema, { strict: false });
+  });
+
+  // --- ajv-formats: Passing validations ---
+
+  test("format: email - valid email", function() {
+    const schema = {
+      type: 'object',
+      properties: {
+        email: { type: 'string', format: 'email' }
+      },
+      required: ['email']
+    };
+    expect(res.getBody()).to.have.jsonSchema(schema);
+  });
+
+  test("format: uri - valid URI", function() {
+    const schema = {
+      type: 'object',
+      properties: {
+        website: { type: 'string', format: 'uri' }
+      },
+      required: ['website']
+    };
+    expect(res.getBody()).to.have.jsonSchema(schema);
+  });
+
+  test("format: date-time - valid ISO 8601 date-time", function() {
+    const schema = {
+      type: 'object',
+      properties: {
+        createdAt: { type: 'string', format: 'date-time' }
+      },
+      required: ['createdAt']
+    };
+    expect(res.getBody()).to.have.jsonSchema(schema);
+  });
+
+  test("format: date - valid date", function() {
+    const schema = {
+      type: 'object',
+      properties: {
+        birthDate: { type: 'string', format: 'date' }
+      },
+      required: ['birthDate']
+    };
+    expect(res.getBody()).to.have.jsonSchema(schema);
+  });
+
+  test("format: time - valid time", function() {
+    const schema = {
+      type: 'object',
+      properties: {
+        loginTime: { type: 'string', format: 'time' }
+      },
+      required: ['loginTime']
+    };
+    expect(res.getBody()).to.have.jsonSchema(schema);
+  });
+
+  test("format: ipv4 - valid IPv4 address", function() {
+    const schema = {
+      type: 'object',
+      properties: {
+        ipv4: { type: 'string', format: 'ipv4' }
+      },
+      required: ['ipv4']
+    };
+    expect(res.getBody()).to.have.jsonSchema(schema);
+  });
+
+  test("format: ipv6 - valid IPv6 address", function() {
+    const schema = {
+      type: 'object',
+      properties: {
+        ipv6: { type: 'string', format: 'ipv6' }
+      },
+      required: ['ipv6']
+    };
+    expect(res.getBody()).to.have.jsonSchema(schema);
+  });
+
+  test("format: uuid - valid UUID", function() {
+    const schema = {
+      type: 'object',
+      properties: {
+        id: { type: 'string', format: 'uuid' }
+      },
+      required: ['id']
+    };
+    expect(res.getBody()).to.have.jsonSchema(schema);
+  });
+
+  test("format: byte - valid base64 string", function() {
+    const schema = {
+      type: 'object',
+      properties: {
+        encodedData: { type: 'string', format: 'byte' }
+      },
+      required: ['encodedData']
+    };
+    expect(res.getBody()).to.have.jsonSchema(schema);
+  });
+
+  test("format: int32 - valid 32-bit integer", function() {
+    const schema = {
+      type: 'object',
+      properties: {
+        int32Val: { type: 'integer', format: 'int32' }
+      },
+      required: ['int32Val']
+    };
+    expect(res.getBody()).to.have.jsonSchema(schema);
+  });
+
+  test("format: int64 - valid 64-bit integer", function() {
+    const schema = {
+      type: 'object',
+      properties: {
+        int64Val: { type: 'integer', format: 'int64' }
+      },
+      required: ['int64Val']
+    };
+    expect(res.getBody()).to.have.jsonSchema(schema);
+  });
+
+  test("format: float - valid float", function() {
+    const schema = {
+      type: 'object',
+      properties: {
+        floatVal: { type: 'number', format: 'float' }
+      },
+      required: ['floatVal']
+    };
+    expect(res.getBody()).to.have.jsonSchema(schema);
+  });
+
+  test("format: double - valid double", function() {
+    const schema = {
+      type: 'object',
+      properties: {
+        doubleVal: { type: 'number', format: 'double' }
+      },
+      required: ['doubleVal']
+    };
+    expect(res.getBody()).to.have.jsonSchema(schema);
+  });
+
+  test("format: duration - valid ISO 8601 duration", function() {
+    const schema = {
+      type: 'object',
+      properties: {
+        duration: { type: 'string', format: 'duration' }
+      },
+      required: ['duration']
+    };
+    expect(res.getBody()).to.have.jsonSchema(schema);
+  });
+
+  test("format: hostname - valid hostname", function() {
+    const schema = {
+      type: 'object',
+      properties: {
+        hostname: { type: 'string', format: 'hostname' }
+      },
+      required: ['hostname']
+    };
+    expect(res.getBody()).to.have.jsonSchema(schema);
+  });
+
+  test("format: regex - valid regex pattern", function() {
+    const schema = {
+      type: 'object',
+      properties: {
+        regexPattern: { type: 'string', format: 'regex' }
+      },
+      required: ['regexPattern']
+    };
+    expect(res.getBody()).to.have.jsonSchema(schema);
+  });
+
+  test("format: json-pointer - valid JSON pointer", function() {
+    const schema = {
+      type: 'object',
+      properties: {
+        jsonPointer: { type: 'string', format: 'json-pointer' }
+      },
+      required: ['jsonPointer']
+    };
+    expect(res.getBody()).to.have.jsonSchema(schema);
+  });
+
+  test("format: uri-reference - valid URI reference", function() {
+    const schema = {
+      type: 'object',
+      properties: {
+        uriRef: { type: 'string', format: 'uri-reference' }
+      },
+      required: ['uriRef']
+    };
+    expect(res.getBody()).to.have.jsonSchema(schema);
+  });
+
+  test("format: uri-template - valid URI template", function() {
+    const schema = {
+      type: 'object',
+      properties: {
+        uriTemplate: { type: 'string', format: 'uri-template' }
+      },
+      required: ['uriTemplate']
+    };
+    expect(res.getBody()).to.have.jsonSchema(schema);
+  });
+
+  test("Multiple formats in one schema", function() {
+    const schema = {
+      type: 'object',
+      properties: {
+        email: { type: 'string', format: 'email' },
+        website: { type: 'string', format: 'uri' },
+        createdAt: { type: 'string', format: 'date-time' },
+        ipv4: { type: 'string', format: 'ipv4' },
+        id: { type: 'string', format: 'uuid' },
+        encodedData: { type: 'string', format: 'byte' },
+        int32Val: { type: 'integer', format: 'int32' },
+        floatVal: { type: 'number', format: 'float' },
+        duration: { type: 'string', format: 'duration' },
+        hostname: { type: 'string', format: 'hostname' }
+      },
+      required: ['email', 'website', 'createdAt', 'ipv4', 'id', 'encodedData', 'int32Val', 'floatVal', 'duration', 'hostname']
+    };
+    expect(res.getBody()).to.have.jsonSchema(schema);
+  });
+
+  // --- ajv-formats: Failure validations ---
+
+  test("format: email - rejects non-email string", function() {
+    const schema = {
+      type: 'object',
+      properties: {
+        name: { type: 'string', format: 'email' }
+      },
+      required: ['name']
+    };
+    expect(res.getBody()).to.not.have.jsonSchema(schema);
+  });
+
+  test("format: uri - rejects non-URI string", function() {
+    const schema = {
+      type: 'object',
+      properties: {
+        name: { type: 'string', format: 'uri' }
+      },
+      required: ['name']
+    };
+    expect(res.getBody()).to.not.have.jsonSchema(schema);
+  });
+
+  test("format: date-time - rejects plain date string", function() {
+    const schema = {
+      type: 'object',
+      properties: {
+        birthDate: { type: 'string', format: 'date-time' }
+      },
+      required: ['birthDate']
+    };
+    expect(res.getBody()).to.not.have.jsonSchema(schema);
+  });
+
+  test("format: ipv4 - rejects non-IP string", function() {
+    const schema = {
+      type: 'object',
+      properties: {
+        name: { type: 'string', format: 'ipv4' }
+      },
+      required: ['name']
+    };
+    expect(res.getBody()).to.not.have.jsonSchema(schema);
+  });
+
+  test("format: uuid - rejects non-UUID string", function() {
+    const schema = {
+      type: 'object',
+      properties: {
+        name: { type: 'string', format: 'uuid' }
+      },
+      required: ['name']
+    };
+    expect(res.getBody()).to.not.have.jsonSchema(schema);
+  });
+
+  test("format: byte - rejects non-base64 string", function() {
+    const schema = {
+      type: 'object',
+      properties: {
+        email: { type: 'string', format: 'byte' }
+      },
+      required: ['email']
+    };
+    expect(res.getBody()).to.not.have.jsonSchema(schema);
+  });
+
+  test("format: int32 - rejects value exceeding 32-bit range", function() {
+    const schema = {
+      type: 'object',
+      properties: {
+        int64Val: { type: 'integer', format: 'int32' }
+      },
+      required: ['int64Val']
+    };
+    expect(res.getBody()).to.not.have.jsonSchema(schema);
+  });
+
+  test("format: float - rejects non-number field", function() {
+    const schema = {
+      type: 'object',
+      properties: {
+        name: { type: 'number', format: 'float' }
+      },
+      required: ['name']
+    };
+    expect(res.getBody()).to.not.have.jsonSchema(schema);
+  });
+
+  test("format: duration - rejects non-duration string", function() {
+    const schema = {
+      type: 'object',
+      properties: {
+        name: { type: 'string', format: 'duration' }
+      },
+      required: ['name']
+    };
+    expect(res.getBody()).to.not.have.jsonSchema(schema);
+  });
+
+  test("format: hostname - rejects invalid hostname", function() {
+    const schema = {
+      type: 'object',
+      properties: {
+        email: { type: 'string', format: 'hostname' }
+      },
+      required: ['email']
+    };
+    expect(res.getBody()).to.not.have.jsonSchema(schema);
+  });
+
+  test("format: json-pointer - rejects non-pointer string", function() {
+    const schema = {
+      type: 'object',
+      properties: {
+        name: { type: 'string', format: 'json-pointer' }
+      },
+      required: ['name']
+    };
+    expect(res.getBody()).to.not.have.jsonSchema(schema);
+  });
+
+  test("format: date - rejects non-date string", function() {
+    const schema = {
+      type: 'object',
+      properties: {
+        name: { type: 'string', format: 'date' }
+      },
+      required: ['name']
+    };
+    expect(res.getBody()).to.not.have.jsonSchema(schema);
+  });
+
+  test("format: time - rejects non-time string", function() {
+    const schema = {
+      type: 'object',
+      properties: {
+        name: { type: 'string', format: 'time' }
+      },
+      required: ['name']
+    };
+    expect(res.getBody()).to.not.have.jsonSchema(schema);
+  });
+
+  test("format: ipv6 - rejects non-IPv6 string", function() {
+    const schema = {
+      type: 'object',
+      properties: {
+        name: { type: 'string', format: 'ipv6' }
+      },
+      required: ['name']
+    };
+    expect(res.getBody()).to.not.have.jsonSchema(schema);
+  });
+
+  test("format: int64 - rejects non-integer field", function() {
+    const schema = {
+      type: 'object',
+      properties: {
+        name: { type: 'integer', format: 'int64' }
+      },
+      required: ['name']
+    };
+    expect(res.getBody()).to.not.have.jsonSchema(schema);
+  });
+
+  test("format: double - rejects non-number field", function() {
+    const schema = {
+      type: 'object',
+      properties: {
+        name: { type: 'number', format: 'double' }
+      },
+      required: ['name']
+    };
+    expect(res.getBody()).to.not.have.jsonSchema(schema);
+  });
+
+  test("format: regex - rejects invalid regex pattern", function() {
+    const schema = {
+      type: 'object',
+      properties: {
+        invalidRegex: { type: 'string', format: 'regex' }
+      },
+      required: ['invalidRegex']
+    };
+    expect(res.getBody()).to.not.have.jsonSchema(schema);
+  });
+
+  test("format: uri-reference - rejects invalid URI reference string", function() {
+    const schema = {
+      type: 'object',
+      properties: {
+        invalidRegex: { type: 'string', format: 'uri-reference' }
+      },
+      required: ['invalidRegex']
+    };
+    expect(res.getBody()).to.not.have.jsonSchema(schema);
+  });
+
+  test("format: uri-template - rejects invalid URI template string", function() {
+    const schema = {
+      type: 'object',
+      properties: {
+        invalidUriTemplate: { type: 'string', format: 'uri-template' }
+      },
+      required: ['invalidUriTemplate']
+    };
+    expect(res.getBody()).to.not.have.jsonSchema(schema);
+  });
+
   // --- Failure validations ---
 
   test("Type mismatch - schema expects array, response is object", function() {