6,000 AI Agents Hit My Server, then Ghosted.

A few months ago I launched md2doc.com mostly as a quick experiment. It’s a simple, fast tool that turns markdown into clean Word (.docx) documents tuned for the long, structured text that comes out of AI chat sessions. To my surprise, people actually started using it. To my even bigger surprised, Agents started using it too!

It all started because Grok was spilling markdown in our sessions, and I needed to send it to people as a pretty looking Google Doc. Doing formatting manually was a pain, so I made myself a local plugin, and then put it online; just a few days after being indexed by Google, traffic picked up. It was exciting!

That made me wonder - Could I get my AI to use it directly, without copy-pasting between tabs? So I built a quick MCP server for the site (with a little help from Mr Claude and Mr Grok) and flipped it on.

For the first couple of days after launch nothing happened, but then, the analytics went vertical.

Roughly 6,000 active users (sessions) came through the MCP endpoint in a short burst. These weren’t humans visiting the website — these were AI agents programmatically calling the conversion tool. At peak there were over 120 active sessions inside a single 30-minute window (roughly 250 per hour). The Google Analytics dashboard lit up with a dramatic spike in active users right around that period, followed by a sharp drop.

The main sources broke down roughly like this (relative to baseline):

Perplexity: 1x
Grok: ~1.5x
ChatGPT: ~2.5x
Doubao (the Chinese AI from ByteDance): ~10x

It felt like a flash mob of agents had discovered the tool and decided to put it through its paces. Then, almost as fast as it appeared, the traffic evaporated and I was left with good old web users.

I don’t know for sure if the update caused the drop, whether the agents simply moved on to the next interesting tool, or if some upstream discovery signal changed.

Either way, it was a vivid reminder of how different this kind of traffic is from normal web visitors.

We’re watching the web develop a new layer. One is the familiar human layer where people are bookmarking sites and clicking around, Googling, checking X, asknig Reddit friends …etc. The other is the agent layer, where autonomous systems discover tools, evaluate them, and invoke them at machine speed and scale. These spikes can be massive but extremely short-lived.

It was a cheap experiment that delivered way more insight than the engineering time invested. The kind of thing you only learn by shipping small and then watching what actually happens in the wild.

If you’re building anything that feels like a tool an AI might find useful, consider exposing it via MCP. And if you just want clean markdown-to-Word conversions without leaving your agent workflow, md2doc.com’s MCP endpoint is live and ready.

It’s the Wild West out there. Stay safe.

Kirill.

ps. If you like agents, and you like markdown, I also made https://foldermd.com, a simple Markdown reader and writer which your agents can use on their own. Instead of pushing a million lines of text into your coding Terminal, they can now save documents to Folder. You then read/edit the document, and the agent picks it up and continues. It’s free.