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Chat agent that fetches a web page as Markdown

by Mindketn8n workflowResearch
Newversion 1 · updated
Nodes16Apps1Like

Overview

  1. On new manual Chat Message
  2. OpenAI Chat Model
  3. Execute Workflow Trigger
  4. HTTP_Request_Tool
  5. ReAct AI Agent
  6. QUERY_PARAMS
  7. CONFIG
  8. HTTP Request
  9. Is error?
  10. Stringify error message
  11. Exctract HTML Body
  12. Remove extra tags
  13. Simplify?
  14. Simplify output
  15. Convert to Markdown
  16. Send Page Content
Chat agent that fetches a web page as Markdown, picture 1
‹2 / 2›

An n8n workflow with a chat agent that can open web pages. Its tool downloads an address, strips scripts and styles, turns the page into Markdown and hands it to an OpenAI model to answer from.

Chat agent that fetches a web page as Markdown is an n8n workflow in the Research category, listed by Mindket. It is free. This is version 1, last updated on . Download it on this page or copy its JSON, then import it into an n8n canvas. Nothing runs until you activate it in n8n.

At a glance

Runs in
  • n8n Cloud: import the file into a new workflow there
  • Your own n8n server: the same file and steps, with the server able to reach the sites you ask about
  • The editor’s chat: the only chat this version has, since its trigger works only there
  • Other workflows: call the lower half with an Execute Workflow node that sends a query field

Platform

n8nWorkflow automation, in n8n’s cloud or on your own server
Connects 1 app

How it works

Trigger

Chat message

It starts when you send a message in n8n’s chat:

  • A question that includes a web address

Actions

  1. The agent reads your message and decides whether it needs a web page
  2. It calls the tool with the address and a method, full or simplified
  3. The address is downloaded and only the text between the body tags is kept
  4. Scripts, styles, frames, media, SVG and comments are removed, and in simplified mode link and image addresses are replaced
  5. The page becomes Markdown, or an error line comes back when it is too long
  6. The model answers from the Markdown in the chat

Result

An answer in the chat drawn from the page you pointed at, read as trimmed Markdown

Integrations

What you need before you start.

OpenAI

Language model

Runs gpt-5.6-sol as the agent’s model, which decides when to read a page and writes the answer.

NeedsOpenAI API key

Workflow check

Checked by Mindket on 13 Nov 2026

Steps
14 steps, starting when another workflow calls it or on a Manual Chat event
AI
1 step calls an AI model: ReAct AI Agent
Sign-ins
Signs in to: OpenAI and Manual Chat
API keys
No API key is left in the file
Step types
Mindket’s checker reads all 7 of its step types

Read from the workflow’s file, not from a run.

About

What it is

This n8n workflow is a chat agent that can read a web page for you. You send a question with an address in n8n’s chat, and an OpenAI model decides whether it needs the page. If it does, it calls a tool, which is the lower half of the same workflow. The tool downloads the address, keeps the page body, drops scripts, styles and embedded media, and turns the rest into Markdown. A page whose Markdown runs to 70,000 characters or more comes back as an error line instead. Sixteen nodes do the work, beside four sticky notes.

Who it suits

Developers and researchers who want a small agent that reads one page at a time, and who want to see how an n8n agent calls a tool of its own. Skip it if the pages you need draw their text with JavaScript, or if other people should use the chat. It opens only inside the n8n editor.

Who uses it, and how
IndustryWho uses itHow they use itExample
ResearchAnalystsAsk about one report or article page at a timeAn analyst pastes a policy page and asks for its three main changes.
MarketingContent marketersRead a rival’s landing page without opening itA marketer asks which plans a competitor’s pricing page lists.
SoftwareDevelopersCheck a documentation page while they workA developer asks what a library’s release page says about one version.
EducationTeachersPull the main points from a page before a classA teacher asks for a short summary of a museum’s exhibit page.

You need a little n8n: import a file, add one OpenAI credential and save the workflow so the tool can call it.

Where to use it

Any n8n that can reach OpenAI and the sites you want to read will run it. The answers appear in the chat.

  • n8n Cloud: import the file into a new workflow there
  • Your own n8n server: the same file and steps, with the server able to reach the sites you ask about
  • The editor’s chat: the only chat this version has, since its trigger works only there
  • Other workflows: call the lower half with an Execute Workflow node that sends a query field

Setup

Download saves a zip with workflow.json and Mindket’s setup notes in your downloads folder. Setup is one credential and one save.

What you need first
NeedDetail
n8nOn n8n Cloud or on a server of your own
OpenAIAn API key that can use gpt-5.6-sol
  1. In n8n, create a workflow, open its menu, choose Import from File and pick workflow.json.
  2. Add an OpenAI credential with your key and select it in OpenAI Chat Model.
  3. Save the workflow. HTTP_Request_Tool calls the workflow by its own id, so it needs the saved copy.
  4. Press Chat on the canvas and ask about a page, with its address in your message.

How to use it

Send a question with a web address in the chat, such as a request to list the plans on a pricing page. The agent picks full or simplified for the tool. full keeps link and image addresses in the Markdown. simplified swaps them for NOURL and NOIMG, which saves space. An answer can use up to 10 steps, so the agent can read more than one page.

What to change for a different result
To changeWhere
The page size limitThe 70000 in CONFIG, counted in characters of Markdown
How the agent uses the toolThe description in HTTP_Request_Tool
The model and its settingsOpenAI Chat Model
What is stripped from the pageThe expression in Remove extra tags
The simplified formThe replacements in Simplify output

Example

A marketer asks the agent to list the plans, prices and limits on a rival’s pricing page, and pastes its address.

The agent calls the tool with the address and method=simplified. The tool answers with the page as Markdown, and the model reads it and replies in the chat. If the Markdown runs to 70,000 characters or more, the tool returns an error line instead, and the model tells you the page was too long. Check any price against the page itself.

For newcomers and experts

If you are new. n8n draws a workflow as boxes joined by lines, and each box, a node, does one job. The top rows are the chat: a trigger, the agent, its model and the tool. The lower rows are the tool’s own steps, which start at Execute Workflow Trigger. Run one question and open the chat’s log to see each step.

For experts. The tool is a Tool Workflow node whose workflow id is the workflow’s own, so one file holds both halves. It passes a single query string, which QUERY_PARAMS splits into fields.

Where to look closer
NodeWhat it doesWhat to know
HTTP RequestDownloads the address with a plain GETA 404 page comes back as text, since neverError is on
Exctract HTML BodyKeeps the text between the body tagsA reply with no body tag, such as JSON, fails here
Remove extra tagsOne regular expression drops scripts, styles, frames, media, SVG and commentsTheir content is gone before the Markdown step
Send Page ContentCompares the Markdown’s length with maxlimitAt the limit or over it, the page becomes an error line
ReAct AI AgentReasons in text and calls the tool by namen8n lists this mode as deprecated

Good to know

The original copy’s model is shut down, and its agent type is on its way out of n8n.

  • Models: OpenAI’s deprecations page, read on 12 November 2026, lists gpt-4-1106-preview as shut down on 23 October 2026. Mindket’s copy calls gpt-5.6-sol, the replacement it names. The options keep the original’s temperature of 0.7 and frequency penalty of 0.3, so clear them in OpenAI Chat Model if OpenAI refuses either for the new model
  • Agent type: n8n marks the ReAct mode as deprecated and says it is removed in n8n v3. After that update, replace ReAct AI Agent with the current AI Agent and reconnect its model and tool
  • A plain download: nothing runs the page’s scripts, so a page that draws its text with JavaScript comes back nearly empty
  • Certificates: HTTP Request has Ignore SSL Issues on, so it also reads a page whose certificate fails. Turn it off in the node’s options if you want the check
  • Reach: the agent fetches any address it is given, including ones on your own network. Only people who can open your n8n editor can use the chat
  • Site rules: read a site’s terms before you point the agent at many of its pages
  • Billing: OpenAI bills each model call, and one question can take several. Every page under the limit goes into the model’s input
  • Your data: your questions and the pages’ text go to OpenAI
  • Credentials: the JSON holds none

README and files

README

Chat agent that fetches a web page as Markdown

An n8n workflow with a chat agent and one tool. You give the agent a web address in n8n's chat, and the tool downloads
the page, strips what a model does not need and hands back Markdown. An OpenAI model answers from it.

What is inside

  • workflow.json: the workflow as n8n exports it, 20 nodes, four of them sticky notes. It holds no credential. The
    agent and the tool sit in one file: the tool is the lower half of the canvas, which starts at Execute Workflow Trigger.
  • README.md: these notes.

What we changed from the original copy

  • OpenAI Chat Model called gpt-4-1106-preview, which OpenAI shut down on 23 October 2026. It now calls
    gpt-5.6-sol, the replacement on OpenAI's deprecations page, read on 12 November 2026.
  • The model node was linked to a credential in its author's n8n. The link is gone, so select your own.
  • Nothing else. The file has no Code node, and its expressions needed no repair.

Before you start

  • An n8n instance, on n8n Cloud or your own server.
  • An OpenAI API key that can use gpt-5.6-sol.
  • Web addresses the agent may read. The request is a plain download, with no browser behind it.

Set it up

  1. In n8n, create a workflow, open its menu and choose Import from File. Pick workflow.json.
  2. Add an OpenAI credential with your key and select it in OpenAI Chat Model.
  3. Save the workflow. HTTP_Request_Tool calls the workflow by its own id, {{ $workflow.id }}, so it needs the saved copy.
  4. Press Chat on the canvas and ask about a page, with its address in your message.

How a run goes

  1. On new manual Chat Message starts a run when you send a message in the chat. It works only from the editor.
  2. ReAct AI Agent reads your message and decides whether it needs a page. It reasons in text, so each step shows in the
    chat's log, and it stops after 10 steps at most.
  3. To read a page it calls HTTP_Request_Tool with a query string such as ?url=ADDRESS&method=simplified. The tool's
    description asks for method=full or method=simplified.
  4. The tool starts a run of the same workflow at Execute Workflow Trigger. QUERY_PARAMS splits the string into fields,
    and CONFIG sets maxlimit to 70000 unless the call gives another value.
  5. HTTP Request downloads the address. Is error? sends a failed request to Stringify error message, which returns
    the error text, or an instruction to fix the query when no url came through.
  6. Exctract HTML Body keeps the text between the body tags, and Remove extra tags drops scripts, styles, frames,
    embeds, audio, video, SVG and comments.
  7. Simplify? checks whether the method contains "simplif". If so, Simplify output swaps every link address for NOURL
    and every image address for NOIMG.
  8. Convert to Markdown turns the HTML into Markdown, and Send Page Content returns it, or ERROR: PAGE CONTENT TOO LONG
    when it is not shorter than maxlimit. The model answers from what comes back.

Change the look

  • The page limit: the 70000 in CONFIG, counted in characters of Markdown.
  • How the agent uses the tool: the description in HTTP_Request_Tool.
  • The model and its settings: OpenAI Chat Model. The options keep the original's timeout of 300000 ms, temperature of
    0.7 and frequency penalty of 0.3.
  • What is stripped: the expression in Remove extra tags.
  • Another way in: call the lower half from any workflow with an Execute Workflow node that sends a query field.

Good to know

  • Models: the original's model is gone, and OpenAI's page gives no rule on temperature or frequency penalty for the new
    one. If a run fails on either, clear it in the options of OpenAI Chat Model.
  • Agent type: n8n marks the ReAct mode as deprecated and says it is removed in n8n v3. After that update, replace
    ReAct AI Agent with the current AI Agent and reconnect its model and tool.
  • Exctract HTML Body fails on a reply with no body tag, such as JSON or plain text, and the tool then returns the error.
  • A page that draws its text with JavaScript comes back nearly empty, since nothing runs the page's scripts.
  • HTTP Request has Ignore SSL Issues on, so it also reads a page whose certificate fails. Turn it off in the node's
    options if you want the check.
  • The agent fetches any address it is given, including ones on your own network. Only people who can open your n8n
    editor can use the chat.
  • Read a site's terms before you point the agent at many of its pages.
  • Each question can take several OpenAI calls, and every page that passes the limit goes into the model's input.
  • Your questions and the pages' text go to OpenAI.
Files
NOTICE.md  591 B
README.md  5 KB
workflow.json  15 KB

3 files, 20 KB, downloaded as a zip.

What’s new

  • Version 1 · 2026-11-12

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