diff --git a/bin/api-blueprint-validator b/bin/api-blueprint-validator
index d798021..2be7a43 100755
--- a/bin/api-blueprint-validator
+++ b/bin/api-blueprint-validator
@@ -1,9 +1,11 @@
 #!/usr/bin/env node
 var yargs = require('yargs')
     .usage('Usage: $0 apiary.apib ')
-    .boolean(['validate-requests', 'validate-responses'])
+    .boolean(['validate-requests', 'validate-responses', 'fail-on-warnings', 'require-name'])
     .default('validate-requests', true)
-    .default('validate-responses', true),
+    .default('validate-responses', true)
+    .default('fail-on-warnings', false)
+    .default('require-name', false),
   argv = yargs.argv;
 
 if (argv.help) {
@@ -18,4 +20,4 @@ if (argv._[0] === undefined) {
 }
 
 var validator = require('../src/validator');
-validator(argv._[0], argv.validateRequests, argv.validateResponses);
\ No newline at end of file
+validator(argv._[0], argv.validateRequests, argv.validateResponses, argv.failOnWarnings, argv.requireName);
diff --git a/package.json b/package.json
index 9c6a13b..ff47eb0 100644
--- a/package.json
+++ b/package.json
@@ -14,9 +14,12 @@
     "node": ">=0.11.x"
   },
   "dependencies": {
-    "protagonist": ">=0.19.3",
+    "glob-fs": "^0.1.6",
+    "is-glob": "^2.0.1",
+    "jsonlint": "1.6.0",
     "yargs": "1.2.1",
-    "jsonlint": "1.6.0"
+    "ajv":"^4.9.0",
+    "protagonist": ">=1.0.0"
   },
   "license": "MIT"
 }
diff --git a/src/validator.js b/src/validator.js
index 4021b68..69c78c8 100644
--- a/src/validator.js
+++ b/src/validator.js
@@ -1,11 +1,120 @@
 var fs = require('fs'),
+  glob = require('glob-fs')({ gitignore: true }),
+  isGlob = require('is-glob'),
   protagonist = require('protagonist'),
   jsonParser = require('jsonlint').parser;
+  ajv = require('ajv');
 
 function lineNumberFromCharacterIndex(string, index) {
   return string.substring(0, index).split("\n").length;
 }
 
+function hasImportantWarning(result,parserOptions) {
+  has_important_warnings = false;
+  if(result.wanrings) {
+  result.warnings.forEach(function(warning) {
+    if ((warning.indexOf('expected API name') !== -1) && ! parserOptions.requireBlueprintName) return;
+    has_important_warnings = true;
+  });
+  }
+  return has_important_warnings;
+}
+
+function lint(file, data, options) {
+
+  function shouldSkip(event) {
+    return (!options.requireBlueprintName && event.message.indexOf('expected API name') !== -1 );
+  }
+
+  var parserOptions = {
+    requireBlueprintName: options.requireBlueprintName,
+    type: 'ast'
+  };
+  
+  protagonist.parse(data, parserOptions, function (error, result) {
+
+      if (error) {
+        var lineNumber = lineNumberFromCharacterIndex(data, error.location[0].index);
+        console.error('(' + file + ')' + ' ' + 'Error: ' + error.message + ' on line ' + lineNumber);
+        process.exit(1);
+      }
+
+      if(result.wanrings) {
+        result.warnings.forEach(function (warning) {
+          if (!shouldSkip(warning)) {
+            var lineNumber = lineNumberFromCharacterIndex(data, warning.location[0].index);
+            console.error('(' + file + ')' + ' ' + 'Warning: ' + warning.message + ' on line ' + lineNumber);
+          }
+        });
+      }
+
+      var errors = [];
+
+      if(result.ast) {
+        examples(result.ast, function (example, action, resource, resourceGroup) {
+          if (options.validateRequests) {
+            example.requests.forEach(function (request) {
+              var valid = isValidRequestOrResponse(request);
+              if (valid !== true) {
+                var message = '    ' + valid.message.replace(/\n/g, '\n    ');
+                var position = errorPosition(example, action, resource, resourceGroup);
+                errors.push('(' + file + ')' + ' ' + 'Error in JSON request ' + position + '\n' + message);
+              }
+            });
+          }
+
+          if (options.validateResponses) {
+            example.responses.forEach(function (response) {
+              var valid = isValidRequestOrResponse(response);
+              if (valid !== true) {
+                var message = '    ' + valid.message.replace(/\n/g, '\n    ');
+                var position = errorPosition(example, action, resource, resourceGroup);
+                errors.push('(' + file + ')' + ' ' + 'Error in JSON response ' + position + '\n' + message);
+              }
+            });
+          }
+        });
+      }
+      else console.log("Warning: No result.ast.");
+
+      if (errors.length > 0) {
+        console.error(errors.join('\n\n'));
+      }
+
+      if (errors.length > 0 ||
+            ( options.failOnWarnings &&
+              ( result.warnings.length > 0 && hasImportantWarning(result.warnings,parserOptions) )
+            )
+         ) {
+        process.exit(1);
+      }
+    });
+}
+
+function processFile(path, options) {
+  fs.readFile(path, 'utf8', function (error, data) {
+    if (error) {
+      console.error('Could not open ' + path);
+      process.exit(1); 
+    }
+    else {
+      lint(path, data, options);
+    }
+  });
+}
+
+function processGlob(path, options) {
+    glob.readdir(path, function (error, files) {
+      if (error) {
+        console.error('Unable to read files ' + path);
+        process.exit(1); 
+      }
+      files.forEach(function (path) {
+        processFile(path, options);
+      });
+     });
+}
+
 function examples(ast, callback) {
   ast.resourceGroups.forEach(function (resourceGroup) {
     resourceGroup.resources.forEach(function (resource) {
@@ -20,18 +129,50 @@ function examples(ast, callback) {
 
 function isJsonContentType(headers) {
   return headers.some(function (header) {
-    return header.name === 'Content-Type' && header.value === 'application/json';
-  });
+    return header.name === 'Content-Type' && /application\/json/.test(header.value); // header may also contain other info, i.e. encoding:
+  });                                                                                 //"application/json; charset=utf-8", so use regexp here.
 }
 
 function isValidRequestOrResponse(requestOrResponse) {
   if (isJsonContentType(requestOrResponse.headers)) {
+    // check body
     try {
       var body = requestOrResponse.body;
       jsonParser.parse(body);
     } catch (e) {
       return e;
     }
+    // schema, if exists, should be a valid json
+    try {
+      var schema = requestOrResponse.schema;
+      if ( schema.length > 0 ) {
+        jsonParser.parse(schema);
+       }
+    } catch (e) {
+      return e;
+    }
+    // also check schema definitions with ajv
+    try {
+      if ( schema.length > 0 ) {
+        schema = JSON.parse(requestOrResponse.schema);
+        if ( Object.keys(schema).length > 0 ) {
+          var jsconSchemaParser = ajv({verbose:true, allErrors:true, format:'full',v5:true,unicode:true});
+          jsconSchemaParser.validateSchema(schema);
+          if (jsconSchemaParser.errors !== null ) {
+           exceptionMsg = "Error validating schema:\n";
+           for (var key in jsconSchemaParser.errors) {
+             exceptionMsg = exceptionMsg + '\tValue rasing validation error:\t\t\t"' + jsconSchemaParser.errors[key].data + '".\n';
+             exceptionMsg = exceptionMsg + '\tPath within schema:\t\t\t\t"' + jsconSchemaParser.errors[key].dataPath + '".\n';
+             exceptionMsg = exceptionMsg + "\tProbably " + jsconSchemaParser.errors[key].message + ': "' +
+                            jsconSchemaParser.errors[key].schema + '"' + '.\n\n';
+           }
+           throw new Error(exceptionMsg);
+          }
+         } else console.log("schema.length < 0");
+      }
+    } catch (e) {
+      return e;
+    }
   }
 
   return true;
@@ -57,55 +198,22 @@ function errorPosition(example, action, resource, resourceGroup) {
   return 'in ' + output.join(', ');
 }
 
-module.exports = function (fileName, validateRequests, validateResponses) {
-  fs.readFile(fileName, 'utf8', function (error, data) {
-    if (error) {
-      console.error('Could not open ' + fileName);
-      return;
-    }
-
-    protagonist.parse(data, function (error, result) {
-      if (error) {
-        var lineNumber = lineNumberFromCharacterIndex(data, error.location[0].index);
-        console.error('Error: ' + error.message + ' on line ' + lineNumber);
-        process.exit(1);
-      }
-
-      result.warnings.forEach(function (warning) {
-        var lineNumber = lineNumberFromCharacterIndex(data, warning.location[0].index);
-        console.error('Warning: ' + warning.message + ' on line ' + lineNumber);
-      });
-
-      var errors = [];
+module.exports = function (fileName, validateRequests, validateResponses, failOnWarnings, requireBlueprintName ) {
+  
+   var options = {
+     validateRequests: validateRequests,
+     validateResponses: validateResponses,
+     failOnWarnings: failOnWarnings,
+     requireBlueprintName: requireBlueprintName
+   };
 
-      examples(result.ast, function (example, action, resource, resourceGroup) {
-        if (validateRequests) {
-          example.requests.forEach(function (request) {
-            var valid = isValidRequestOrResponse(request);
-            if (valid !== true) {
-              var message = '    ' + valid.message.replace(/\n/g, '\n    ');
-              var position = errorPosition(example, action, resource, resourceGroup);
-              errors.push('Error in JSON request ' + position + '\n' + message);
-            }
-          });
-        }
-
-        if (validateResponses) {
-          example.responses.forEach(function (response) {
-            var valid = isValidRequestOrResponse(response);
-            if (valid !== true) {
-              var message = '    ' + valid.message.replace(/\n/g, '\n    ');
-              var position = errorPosition(example, action, resource, resourceGroup);
-              errors.push('Error in JSON response ' + position + '\n' + message);
-            }
-          });
-        }
-      });
+  if (isGlob(fileName)) {
+    // never require the blueprint name for multiple files
+    options.requireBlueprintName = false;
+    processGlob(fileName, options);
+  }
+  else {
+    processFile(fileName, options);
+  }
 
-      if (errors.length > 0) {
-        console.error(errors.join('\n\n'));
-        process.exit(1);
-      }
-    });
-  });
 };