AI rule node: add Anthropic support

application/pom.xml

@@ -383,11 +383,11 @@
         </dependency>
         <dependency>
             <groupId>dev.langchain4j</groupId>
-            <artifactId>langchain4j-azure-open-ai</artifactId>
+            <artifactId>langchain4j-open-ai</artifactId>
         </dependency>
         <dependency>
             <groupId>dev.langchain4j</groupId>
-            <artifactId>langchain4j-open-ai</artifactId>
+            <artifactId>langchain4j-azure-open-ai</artifactId>
         </dependency>
         <dependency>
             <groupId>dev.langchain4j</groupId>
@@ -401,6 +401,10 @@
             <groupId>dev.langchain4j</groupId>
             <artifactId>langchain4j-mistral-ai</artifactId>
         </dependency>
+        <dependency>
+            <groupId>dev.langchain4j</groupId>
+            <artifactId>langchain4j-anthropic</artifactId>
+        </dependency>
     </dependencies>
 
     <build>

application/src/main/java/org/thingsboard/server/service/ai/Langchain4jChatModelConfigurerImpl.java

@@ -25,6 +25,7 @@ import dev.langchain4j.model.chat.ChatModel;
 import dev.langchain4j.model.vertexai.gemini.VertexAiGeminiChatModel;
 import org.springframework.stereotype.Component;
 import org.thingsboard.common.util.JacksonUtil;
+import org.thingsboard.server.common.data.ai.model.chat.AnthropicChatModel;
 import org.thingsboard.server.common.data.ai.model.chat.AzureOpenAiChatModel;
 import org.thingsboard.server.common.data.ai.model.chat.GoogleAiGeminiChatModel;
 import org.thingsboard.server.common.data.ai.model.chat.GoogleVertexAiGeminiChatModel;
@@ -125,6 +126,18 @@ class Langchain4jChatModelConfigurerImpl implements Langchain4jChatModelConfigur
                 .build();
     }
 
+    @Override
+    public ChatModel configureChatModel(AnthropicChatModel chatModel) {
+        AnthropicChatModel.Config modelConfig = chatModel.modelConfig();
+        return dev.langchain4j.model.anthropic.AnthropicChatModel.builder()
+                .apiKey(chatModel.providerConfig().apiKey())
+                .modelName(modelConfig.modelId())
+                .temperature(modelConfig.temperature())
+                .timeout(toDuration(modelConfig.timeoutSeconds()))
+                .maxRetries(modelConfig.maxRetries())
+                .build();
+    }
+
     private static Duration toDuration(Integer timeoutSeconds) {
         return timeoutSeconds != null ? Duration.ofSeconds(timeoutSeconds) : null;
     }

common/data/src/main/java/org/thingsboard/server/common/data/ai/model/AiModelTypeIdResolver.java

@@ -19,6 +19,7 @@ import com.fasterxml.jackson.annotation.JsonTypeInfo;
 import com.fasterxml.jackson.databind.DatabindContext;
 import com.fasterxml.jackson.databind.JavaType;
 import com.fasterxml.jackson.databind.jsontype.impl.TypeIdResolverBase;
+import org.thingsboard.server.common.data.ai.model.chat.AnthropicChatModel;
 import org.thingsboard.server.common.data.ai.model.chat.GoogleAiGeminiChatModel;
 import org.thingsboard.server.common.data.ai.model.chat.GoogleVertexAiGeminiChatModel;
 import org.thingsboard.server.common.data.ai.model.chat.MistralAiChatModel;
@@ -77,6 +78,14 @@ public final class AiModelTypeIdResolver extends TypeIdResolverBase {
         map.put("MISTRAL_AI::ministral-3b-latest", MistralAiChatModel.class);
         map.put("MISTRAL_AI::open-mistral-nemo", MistralAiChatModel.class);
 
+        // Anthropic models
+        map.put("ANTHROPIC::claude-opus-4-0", AnthropicChatModel.class);
+        map.put("ANTHROPIC::claude-sonnet-4-0", AnthropicChatModel.class);
+        map.put("ANTHROPIC::claude-3-7-sonnet-latest", AnthropicChatModel.class);
+        map.put("ANTHROPIC::claude-3-5-sonnet-latest", AnthropicChatModel.class);
+        map.put("ANTHROPIC::claude-3-5-haiku-latest", AnthropicChatModel.class);
+        map.put("ANTHROPIC::claude-3-opus-latest", AnthropicChatModel.class);
+
         typeIdToModelClass = Collections.unmodifiableMap(map);
     }
 

common/data/src/main/java/org/thingsboard/server/common/data/ai/model/chat/AiChatModel.java

@@ -20,7 +20,9 @@ import org.thingsboard.server.common.data.ai.model.AiModel;
 import org.thingsboard.server.common.data.ai.model.AiModelType;
 
 public sealed interface AiChatModel<C extends AiChatModelConfig<C>> extends AiModel<C>
-        permits OpenAiChatModel, AzureOpenAiChatModel, GoogleAiGeminiChatModel, GoogleVertexAiGeminiChatModel, MistralAiChatModel {
+        permits
+        OpenAiChatModel, AzureOpenAiChatModel, GoogleAiGeminiChatModel,
+        GoogleVertexAiGeminiChatModel, MistralAiChatModel, AnthropicChatModel {
 
     ChatModel configure(Langchain4jChatModelConfigurer configurer);
 

common/data/src/main/java/org/thingsboard/server/common/data/ai/model/chat/AiChatModelConfig.java

@@ -18,7 +18,9 @@ package org.thingsboard.server.common.data.ai.model.chat;
 import org.thingsboard.server.common.data.ai.model.AiModelConfig;
 
 public sealed interface AiChatModelConfig<C extends AiChatModelConfig<C>> extends AiModelConfig<C>
-        permits OpenAiChatModel.Config, AzureOpenAiChatModel.Config, GoogleAiGeminiChatModel.Config, GoogleVertexAiGeminiChatModel.Config, MistralAiChatModel.Config {
+        permits
+        OpenAiChatModel.Config, AzureOpenAiChatModel.Config, GoogleAiGeminiChatModel.Config,
+        GoogleVertexAiGeminiChatModel.Config, MistralAiChatModel.Config, AnthropicChatModel.Config {
 
     Double temperature();
 

common/data/src/main/java/org/thingsboard/server/common/data/ai/model/chat/AnthropicChatModel.java

@@ -0,0 +1,60 @@
+/**
+ * Copyright © 2016-2025 The Thingsboard Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.thingsboard.server.common.data.ai.model.chat;
+
+import dev.langchain4j.model.chat.ChatModel;
+import org.thingsboard.server.common.data.ai.provider.AnthropicProviderConfig;
+
+public record AnthropicChatModel(
+        AnthropicProviderConfig providerConfig,
+        Config modelConfig
+) implements AiChatModel<AnthropicChatModel.Config> {
+
+    public record Config(
+            String modelId,
+            Double temperature,
+            Integer timeoutSeconds,
+            Integer maxRetries
+    ) implements AiChatModelConfig<AnthropicChatModel.Config> {
+
+        @Override
+        public AnthropicChatModel.Config withTemperature(Double temperature) {
+            return new Config(modelId, temperature, timeoutSeconds, maxRetries);
+        }
+
+        @Override
+        public AnthropicChatModel.Config withTimeoutSeconds(Integer timeoutSeconds) {
+            return new Config(modelId, temperature, timeoutSeconds, maxRetries);
+        }
+
+        @Override
+        public AnthropicChatModel.Config withMaxRetries(Integer maxRetries) {
+            return new Config(modelId, temperature, timeoutSeconds, maxRetries);
+        }
+
+    }
+
+    @Override
+    public ChatModel configure(Langchain4jChatModelConfigurer configurer) {
+        return configurer.configureChatModel(this);
+    }
+
+    @Override
+    public AnthropicChatModel withModelConfig(AnthropicChatModel.Config config) {
+        return new AnthropicChatModel(providerConfig, config);
+    }
+
+}

common/data/src/main/java/org/thingsboard/server/common/data/ai/model/chat/Langchain4jChatModelConfigurer.java

@@ -29,4 +29,6 @@ public interface Langchain4jChatModelConfigurer {
 
     ChatModel configureChatModel(MistralAiChatModel chatModel);
 
+    ChatModel configureChatModel(AnthropicChatModel chatModel);
+
 }

common/data/src/main/java/org/thingsboard/server/common/data/ai/provider/AiProvider.java

@@ -21,6 +21,7 @@ public enum AiProvider {
     AZURE_OPENAI,
     GOOGLE_AI_GEMINI,
     GOOGLE_VERTEX_AI_GEMINI,
-    MISTRAL_AI
+    MISTRAL_AI,
+    ANTHROPIC
 
 }

common/data/src/main/java/org/thingsboard/server/common/data/ai/provider/AiProviderConfig.java

@@ -28,10 +28,13 @@ import com.fasterxml.jackson.annotation.JsonTypeInfo;
         @JsonSubTypes.Type(value = AzureOpenAiProviderConfig.class, name = "AZURE_OPENAI"),
         @JsonSubTypes.Type(value = GoogleAiGeminiProviderConfig.class, name = "GOOGLE_AI_GEMINI"),
         @JsonSubTypes.Type(value = GoogleVertexAiGeminiProviderConfig.class, name = "GOOGLE_VERTEX_AI_GEMINI"),
-        @JsonSubTypes.Type(value = MistralAiProviderConfig.class, name = "MISTRAL_AI")
+        @JsonSubTypes.Type(value = MistralAiProviderConfig.class, name = "MISTRAL_AI"),
+        @JsonSubTypes.Type(value = AnthropicProviderConfig.class, name = "ANTHROPIC")
 })
 public sealed interface AiProviderConfig
-        permits OpenAiProviderConfig, AzureOpenAiProviderConfig, GoogleAiGeminiProviderConfig, GoogleVertexAiGeminiProviderConfig, MistralAiProviderConfig {
+        permits
+        OpenAiProviderConfig, AzureOpenAiProviderConfig, GoogleAiGeminiProviderConfig,
+        GoogleVertexAiGeminiProviderConfig, MistralAiProviderConfig, AnthropicProviderConfig {
 
     AiProvider provider();
 

common/data/src/main/java/org/thingsboard/server/common/data/ai/provider/AnthropicProviderConfig.java

@@ -0,0 +1,25 @@
+/**
+ * Copyright © 2016-2025 The Thingsboard Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.thingsboard.server.common.data.ai.provider;
+
+public record AnthropicProviderConfig(String apiKey) implements AiProviderConfig {
+
+    @Override
+    public AiProvider provider() {
+        return AiProvider.ANTHROPIC;
+    }
+
+}

rule-engine/rule-engine-components/src/main/java/org/thingsboard/rule/engine/ai/TbAiNode.java

@@ -16,7 +16,6 @@
 package org.thingsboard.rule.engine.ai;
 
 import com.fasterxml.jackson.databind.JsonNode;
-import com.fasterxml.jackson.databind.node.ObjectNode;
 import com.google.common.util.concurrent.FluentFuture;
 import com.google.common.util.concurrent.FutureCallback;
 import dev.langchain4j.data.message.SystemMessage;
@@ -25,7 +24,6 @@ import dev.langchain4j.model.chat.ChatModel;
 import dev.langchain4j.model.chat.request.ChatRequest;
 import dev.langchain4j.model.chat.request.ResponseFormat;
 import dev.langchain4j.model.chat.request.ResponseFormatType;
-import dev.langchain4j.model.chat.request.json.JsonSchema;
 import dev.langchain4j.model.chat.response.ChatResponse;
 import org.checkerframework.checker.nullness.qual.NonNull;
 import org.thingsboard.common.util.JacksonUtil;
@@ -81,10 +79,13 @@ public final class TbAiNode extends TbAbstractExternalNode implements TbNode {
             throw new TbNodeException(e, true);
         }
 
-        responseFormat = ResponseFormat.builder()
-                .type(config.getResponseFormatType())
-                .jsonSchema(getJsonSchema(config.getResponseFormatType(), config.getJsonSchema()))
-                .build();
+        // LC4j AnthropicChatModel rejects requests with non-null ResponseFormat even if ResponseFormatType is TEXT
+        if (config.getResponseFormatType() == ResponseFormatType.JSON) {
+            responseFormat = ResponseFormat.builder()
+                    .type(config.getResponseFormatType())
+                    .jsonSchema(config.getJsonSchema() != null ? Langchain4jJsonSchemaAdapter.fromJsonNode(config.getJsonSchema()) : null)
+                    .build();
+        }
 
         systemPrompt = config.getSystemPrompt();
         userPrompt = config.getUserPrompt();
@@ -101,13 +102,6 @@ public final class TbAiNode extends TbAbstractExternalNode implements TbNode {
         }
     }
 
-    private static JsonSchema getJsonSchema(ResponseFormatType responseFormatType, ObjectNode jsonSchema) {
-        if (responseFormatType == ResponseFormatType.TEXT) {
-            return null;
-        }
-        return responseFormatType == ResponseFormatType.JSON && jsonSchema != null ? Langchain4jJsonSchemaAdapter.fromJsonNode(jsonSchema) : null;
-    }
-
     @Override
     public void onMsg(TbContext ctx, TbMsg msg) {
         var ackedMsg = ackIfNeeded(ctx, msg);