docs: Add ZenMux Node and Credentials Documentation

docs/integrations/builtin/cluster-nodes/sub-nodes/n8n-nodes-langchain.lmchatzenmux.md

@@ -0,0 +1,75 @@
+---
+title: ZenMux Chat Model node documentation
+description: Learn how to use the ZenMux Chat Model node in n8n. Follow technical documentation to integrate ZenMux Chat Model node into your workflows.
+contentType: [integration, reference]
+priority: high
+---
+
+# ZenMux Chat Model node
+
+Use the ZenMux Chat Model node to use ZenMux's chat models with conversational agents.
+
+On this page, you'll find the node parameters for the ZenMux Chat Model node and links to more resources.
+
+/// note | Credentials
+You can find authentication information for this node [here](/integrations/builtin/credentials/zenmux.md).
+///
+
+--8<-- "_snippets/integrations/builtin/cluster-nodes/sub-node-expression-resolution.md"
+
+## Node parameters
+
+### Model
+
+Select the model to use to generate the completion.
+
+n8n dynamically loads models from ZenMux and you'll only see the models available to your account.
+
+## Node options
+
+Use these options to further refine the node's behavior.
+
+### Frequency Penalty
+
+Use this option to control the chances of the model repeating itself. Higher values reduce the chance of the model repeating itself.
+
+### Maximum Number of Tokens
+
+Enter the maximum number of tokens used, which sets the completion length.
+
+### Response Format
+
+Choose **Text** or **JSON**. **JSON** ensures the model returns valid JSON.
+
+### Presence Penalty
+
+Use this option to control the chances of the model talking about new topics. Higher values increase the chance of the model talking about new topics.
+
+### Sampling Temperature
+
+Use this option to control the randomness of the sampling process. A higher temperature creates more diverse sampling, but increases the risk of hallucinations.
+
+### Timeout
+
+Enter the maximum request time in milliseconds.
+
+### Max Retries
+
+Enter the maximum number of times to retry a request.
+
+### Top P
+
+Use this option to set the probability the completion should use. Use a lower value to ignore less probable options. 
+
+## Templates and examples
+
+<!-- see https://www.notion.so/n8n/Pull-in-templates-for-the-integrations-pages-37c716837b804d30a33b47475f6e3780 -->
+[[ templatesWidget(page.title, 'zenmux-chat-model') ]]
+
+## Related resources
+
+As ZenMux is API-compatible with OpenAI, you can refer to [LangChains's OpenAI documentation](https://js.langchain.com/docs/integrations/chat/openai/) for more information about the service.
+
+--8<-- "_snippets/integrations/builtin/cluster-nodes/langchain-overview-link.md"
+
+

docs/integrations/builtin/credentials/zenmux.md

@@ -0,0 +1,39 @@
+--- 
+title: ZenMux credentials
+description: Documentation for ZenMux credentials. Use these credentials to authenticate ZenMux in n8n, a workflow automation platform.
+contentType: [integration, reference]
+priority: critical
+---
+
+# ZenMux credentials
+
+You can use these credentials to authenticate the following nodes:
+
+- [Chat ZenMux](/integrations/builtin/cluster-nodes/sub-nodes/n8n-nodes-langchain.lmchatzenmux.md)
+
+## Prerequisites
+
+Create a [ZenMux](https://zenmux.ai/) account.
+
+## Supported authentication methods
+
+- API key
+
+## Related resources
+
+Refer to [ZenMux's API documentation](https://docs.zenmux.ai/zh/api/openai/create-chat-completion.html) for more information about the service.
+
+## Using API key
+
+To configure this credential, you'll need:
+
+- An **API Key**
+
+To generate your API Key:
+
+1. Login to your ZenMux account or [create](https://zenmux.ai/) an account.
+2. Open your [API keys](https://zenmux.ai/settings/keys) page.
+3. Select **Create new secret key** to create an API key, optionally naming the key.
+4. Copy your key and add it as the **API Key** in n8n.
+
+Refer to the [ZenMux Quick Start](https://docs.zenmux.ai/guide/quickstart.html) page for more information.

nav.yml

@@ -765,6 +765,7 @@ nav:
           - OpenRouter Chat Model: integrations/builtin/cluster-nodes/sub-nodes/n8n-nodes-langchain.lmchatopenrouter.md
           - Vercel AI Gateway Chat Model: integrations/builtin/cluster-nodes/sub-nodes/n8n-nodes-langchain.lmchatvercel.md
           - xAI Grok Chat Model: integrations/builtin/cluster-nodes/sub-nodes/n8n-nodes-langchain.lmchatxaigrok.md
+          - ZenMux Chat Model: integrations/builtin/cluster-nodes/sub-nodes/n8n-nodes-langchain.lmchatzenmux.md
           - Cohere Model: integrations/builtin/cluster-nodes/sub-nodes/n8n-nodes-langchain.lmcohere.md
           - Ollama Model:
             - Ollama Model: integrations/builtin/cluster-nodes/sub-nodes/n8n-nodes-langchain.lmollama/index.md
@@ -999,6 +1000,7 @@ nav:
         - integrations/builtin/credentials/openai.md
         - integrations/builtin/credentials/opencti.md
         - integrations/builtin/credentials/openrouter.md
+        - integrations/builtin/credentials/zenmux.md
         - integrations/builtin/credentials/openweathermap.md
         - integrations/builtin/credentials/oracledb.md
         - integrations/builtin/credentials/oura.md