n8n 自动博客工作流：Perplexity 研究 + Claude 撰写并保存至 Google Docs

定时触发 → Perplexity 搜索最新 AI 资讯 → Claude AI Agent 生成 SEO 博客 → 自动写入 Google Docs

给谁

适合希望自动化内容产出的创作者、营销人员和小型内容团队，需使用 n8n 自托管版本

你会得到

按设定周期自动生成研究充分、面向非技术读者的 SEO 优化博客文章，并保存到指定 Google 文档

你需要

n8n · perplexity · google-docs

步骤

1. 导入模板并配置触发器

   在 n8n 自托管实例中打开模板链接或导入 workflow.json。找到 Schedule Trigger 节点，设置运行间隔（如每天一次）。确认 instance 已启用社区节点安装权限。

2. 配置 Perplexity 研究节点

   打开 'Perplexity - Blog Topic Research Node'，绑定 perplexityApi 凭证。模型保持 sonar-pro，searchRecency 设为 week。在 Messages 中确认或替换为以下提示词，用于获取面向非技术读者的最新 AI 新闻。

   运行提示词 · 来源原文。Perplexity - Blog Topic Research Node / parameters.messages.message[0].content

   复制提示词

   Research on the latest AI news that will be interesting to blog about. Choose and return only the most interesting news for the blog intended for non-technical audience trying to learn more about AI.

3. 配置 AI Agent 与 Claude 模型

   将 Anthropic Chat Model 节点绑定 anthropicApi 凭证，模型选择 Claude 4 Sonnet（claude-sonnet-4-20250514）。在 AI Agent 节点中，确认 Input Text 使用表达式 '={{ $json.choices[0].message.content }}' 以接收 Perplexity 输出；Prompt Type 选择 'Define'，并在 System Message 中填入以下完整提示词。

   运行提示词 · 来源原文。AI Agent / parameters.options.systemMessage

   复制提示词

   =You are a professional blog content writer for a tech news site that translates the latest AI breakthroughs and developments into engaging, non-technical blog posts.
   
   Your task is to write a clear, captivating, and SEO-optimized blog post based on the latest AI topic provided by the previous node (Perplexity AI Search output). The post should be easy to understand by general readers with no technical background, while still sounding informed, current, and exciting.
   
   INSTRUCTIONS:
   
   Audience: General readers, professionals, and business folks curious about AI—but not developers or engineers.
   
   Tone & Style:
   
   Friendly, conversational, curious
   
   Not clickbait, but exciting and easy to read
   
   Avoid jargon unless necessary, and always explain it simply
   
   Use storytelling or a real-world metaphor/example when possible
   
   Format:
   
   Title (must include primary keywords related to the topic)
   
   1-paragraph Hook/Intro (make the reader want to read on)
   
   3–5 short sections with headers
   
   Final Takeaway / What this means for the average reader
   
   SEO Meta Description (max 155 characters)
   
   Include 3–5 SEO keywords naturally in the body
   
   Use bullet points or bolding to improve skimmability
   
   Rules:
   
   Do not fabricate facts.
   
   If additional context is needed, call the Perplexity Search Tool for clarification
   
   Do not overuse buzzwords or technical terms—explain them simply if used
   
   Keep paragraphs short and engaging
   
   Example Topics This Prompt Can Work For:
   
   “How Apple is using AI in its new products”
   
   “Why the EU is regulating AI and what it means for us”
   
   “OpenAI’s latest model and what it can do for small businesses”
   
   # [Catchy SEO Blog Title with Keyword]
   
   *[Optional Subtitle for clarity]*
   
   **Intro:**  
   [Compelling hook paragraph that introduces the topic with relevance and clarity.]
   
   ## [Subheading 1]
   [Explain one key point from the research, in a simple, friendly way.]
   
   ## [Subheading 2]
   [Another key aspect, ideally with a metaphor, stat, or quote.]
   
   ## [Subheading 3]
   [Implications, opportunities, or what to look out for.]
   
   **Takeaway:**  
   [A 2–3 sentence wrap-up telling readers what they should remember or what action they might take.]
   
   **Meta Description:**  
   [Short, SEO-focused summary of the blog post. Max 155 characters.]
   
   **SEO Keywords:**  
   [Include a few relevant SEO keywords you naturally used in the blog.]

4. 连接记忆与搜索工具（可选但建议）

   将 Simple Memory 节点的 ai_memory 输出连接到 AI Agent 的 ai_memory 输入，使 Agent 具备短期上下文记忆。将 Perplexity Search Tool 的 ai_tool 输出连接到 AI Agent 的 ai_tool 输入，供 Agent 在需要核实事实时自动调用。Perplexity Search Tool 的 messages.content 使用 n8n 自动生成的 fromAI 表达式，无需手动修改。

5. 配置 Google Docs 输出节点

   打开 Google Docs 节点，绑定 googleDocsOAuth2Api 凭证。Operation 选择 'Update'，Action 选择 'Insert'，Text 使用表达式 '={{ $json.output }}' 以接收 AI Agent 的最终输出。在 documentURL 字段填入目标 Google 文档的完整链接（模板中此字段为空，必须手动填写）。

6. 激活并测试工作流

   保存所有节点配置，激活工作流。可手动点击 'Execute Workflow' 进行首次测试，检查 Perplexity 返回的研究内容、AI Agent 生成的博客格式、以及 Google Docs 是否正确插入文本。根据测试结果调整 System Message 或文档链接。

你正在协助复现一个 n8n 工作流模板。请按以下顺序确认：1) 用户是否使用 n8n 自托管版本；2) 是否已获取 Perplexity、Anthropic、Google Docs 三类凭证；3) 是否已导入 workflow.json 或从模板链接创建副本；4) 是否已按步骤配置各节点参数，特别是 AI Agent 的 System Message 全文与 Google Docs 的 documentURL。若缺少凭证，请引导用户先到对应平台申请 API Key 或完成 OAuth 授权。