The AI Agents page shows ChatGPT, Claude, Perplexity, Gemini, Meta AI, Claude Code and other AI products: the pages they read, whether they fetched HTML, markdown or llms.txt, and the visitors they sent you.

Agents that run JavaScript and visitors referred by AI assistants show up automatically through the Databuddy script. Crawlers and coding agents like GPTBot, ClaudeBot and Claude Code don't run JavaScript, so they only show up once @databuddy/sdk/agents runs on your server.

Package: @databuddy/sdk 3.0.1+ | Import: @databuddy/sdk/agents

Setup

Install the SDK, or upgrade it if you're on 2.x, which doesn't include @databuddy/sdk/agents, or 3.0.0, which misses signed agent browsers and markdown-first clients:

bun add @databuddy/sdk@latest

No API key is needed, only your website ID. If you already use the Databuddy SDK, it's set:

NEXT_PUBLIC_DATABUDDY_CLIENT_ID=your_website_id

The NUXT_PUBLIC_, VITE_ and REACT_APP_ versions of the variable work too, as does DATABUDDY_WEBSITE_ID. Requests are only recorded when they come from your website's domain or one of its allowed origins, so local development never shows up.

Next.js and Fumadocs

If you don't have a proxy yet, create proxy.ts (Next.js 16) next to your app folder:

export { proxy } from "@databuddy/sdk/agents";

On Next.js 15, create middleware.ts instead:

export { proxy as middleware } from "@databuddy/sdk/agents";

If you already have a proxy, add one line to it:

import { trackAgents } from "@databuddy/sdk/agents";
import { type NextFetchEvent, type NextRequest, NextResponse } from "next/server";

export function proxy(request: NextRequest, event: NextFetchEvent) {
event.waitUntil(trackAgents(request));
return NextResponse.next();
}

If your proxy has a matcher, make sure it doesn't exclude .md and .txt paths. Those are the markdown pages and llms.txt files AI tools fetch most.

Fumadocs sites need nothing extra. Markdown requested through a .md URL or an Accept: text/markdown header is recorded as markdown, and llms.txt and llms-full.txt are recorded on their own.

Vercel (any framework)

For Vite, Astro or any other site on Vercel, add middleware.ts at the project root:

export { proxy as default } from "@databuddy/sdk/agents";

Vercel log drain (no code)

On a Vercel Pro or Enterprise plan you can send your request logs instead of adding code. In Vercel, open Team Settings → Drains → Add Drain, choose Logs and Custom Endpoint, and paste:

https://basket.databuddy.cc/vercel/your_website_id

Select the Static Files, Functions, Edge Functions and Rewrites sources and the Production environment, choose JSON or NDJSON, and leave sampling off. Databuddy keeps only requests from AI agents, from hosts that belong to your website. Vercel bills drains by volume.

Logs don't include the Accept header, so markdown is recognized from .md and .mdx paths only, and signed agent browsers look like regular Chrome. In exchange, drains also store the HTTP status each agent got, so you can ask the assistant which pages return 404 to AI crawlers.

Cloudflare Workers, Hono, and other fetch handlers

import { trackAgents } from "@databuddy/sdk/agents";

export default {
async fetch(request, env, ctx) {
  const websiteId = env.DATABUDDY_WEBSITE_ID;
  ctx.waitUntil(trackAgents(request, { websiteId }));
  return fetch(request);
},
};

Workers don't have process.env, so set the website ID as a variable in wrangler.toml and pass it as an option:

[vars]
DATABUDDY_WEBSITE_ID = "your_website_id"

Netlify

Add an edge function at netlify/edge-functions/databuddy.ts. It runs in front of every request, including static llms.txt and markdown files:

import { trackAgents } from "@databuddy/sdk/agents";

export default (request, context) => {
const websiteId = Netlify.env.get("DATABUDDY_WEBSITE_ID");
context.waitUntil(trackAgents(request, { websiteId }));
};

export const config = { path: "/*" };

Set DATABUDDY_WEBSITE_ID under Site configuration → Environment variables. Returning nothing passes the request through, so your site keeps serving as before.

Express and Node

import { trackAgents } from "@databuddy/sdk/agents";

app.use((req, _res, next) => {
trackAgents(req);
next();
});

What gets recorded

trackAgents reports GET and HEAD requests from AI agents and skips images, scripts, styles and fonts. It recognizes three kinds: known AI products by their user agent; agent browsers such as ChatGPT agent, which send a regular Chrome user agent but sign their requests with a Signature-Agent header; and clients that aren't browsers and ask for markdown first in their Accept header, as tools built for AI do, which are recorded as unidentified agents named after their user agent. Each request records the page path without its query string, the host, the user agent, the Accept header, the referrer, the agent, and the format it asked for:

Format	When
Markdown	The path ends in `.md` or `.mdx`, or the request accepts `text/markdown`
llms.txt	The path is `llms.txt` or `llms-full.txt`
HTML	Anything else

It never throws and never delays your response: requests to Databuddy run in the background and time out after 3 seconds.

Limits to keep in mind

A read is not a citation. An AI product fetching a page means it can use it, not that an answer quoted it. Visitors sent from AI are the signal that an answer linked to you.
User agents can be copied. Anyone can send a request that claims to be GPTBot, so treat a sudden burst from one crawler with care.
Requests made for a user may ignore robots.txt. Crawlers such as GPTBot follow it; fetches a person triggers inside ChatGPT or Claude often don't.
Visitors from AI depend on what the AI product passes along. Visits count when the referrer or utm_source names an AI product, or the visitor uses an AI app browser. Apps that strip both show up as direct traffic.
Failed requests aren't reads. With a Vercel log drain, requests that got an error are listed separately, and neither errors nor redirects count as pages read.

Test your setup

Deploy, then open the AI Agents page in your dashboard and click Test setup. Databuddy requests your homepage and /llms.txt as GPTBot and tells you whether each request was recorded. Test requests never show up in your data.

Static hosts without middleware (GitHub Pages, S3) and hosted docs platforms that don't let you run code can't report crawler requests. Sites on Vercel can use a log drain, and sites on Netlify an edge function.

Weekly AI digest

Every Monday at 9:00 UTC, the owners of each organization get an email for every site that got at least one visitor from AI, or at least ten AI reads, in the previous week (Monday to Sunday, UTC). It shows the visitors AI sent compared with the week before, how many times AI read the site, how many pages AI hadn't read in the previous 90 days, each AI product's reads and visitors, where AI visitors landed, and the most read pages. Turn it off under Settings → Notifications → Weekly AI digest, or with your email app's Unsubscribe button.

AI agents