---
title: "llms.txt adoption: who's actually shipping it"
url: https://mdfy.app/qKRfGtCa
updated: 2026-05-14T18:15:49.480Z
source: "mdfy.app"
---
# llms.txt adoption: who's actually shipping it

> Snapshot 2026-05-01. I'll re-run this every quarter.

## What llms.txt is, briefly

A plain-text discoverability file at the root of a site (`/llms.txt`) that tells AI agents what's available, in what shape, and where to fetch it. Inspired by `robots.txt` and `sitemap.xml`. Drafted by Jeremy Howard.

## Who's shipping it today

**Actively maintained, production:**

- Vercel — `vercel.com/llms.txt`. Comprehensive, includes per-product child files.
- Cloudflare — `developers.cloudflare.com/llms.txt`. Less comprehensive but on the public docs index.
- Anthropic Docs — `docs.anthropic.com/llms.txt`. Includes both `llms.txt` and `llms-full.txt`.
- Resend — `resend.com/llms.txt`. Short, tasteful, links the SDK reference.
- Trigger.dev — `trigger.dev/llms.txt`. Includes self-hosting docs.
- mdfy — every public hub auto-exposes `/llms.txt` for that hub's surface.

**Considering / partial:**

A handful of devtool platforms have it on a roadmap or under feature flag. Names withheld here — not yet public commitments.

## The pattern

It's **devtool companies first.** Every site shipping `llms.txt` today is either a developer platform, an SDK provider, or an AI/ML company. Consumer-facing sites haven't moved.

Two readings of why:

1. **The audience overlap.** Devtool customers ARE AI users. The feedback loop is short — a Cursor user complains they can't get good context from your docs, you ship llms.txt the next week.
2. **The build cost is trivial when your docs are already in markdown.** It's a couple lines of script to generate. Companies whose docs sit in WordPress or proprietary CMSes have a real build problem.

## Where mdfy fits

We make `llms.txt` part of the *user's* URL, not just the platform's. Any user's hub gets its own `/llms.txt`. Any AI tool can fetch it. That extends the standard's reach from "the sites the LLM-providers pay attention to" to "every user who's published anything."

## Followup

Watch HuggingFace, Replicate, and OpenAI's developer docs. If they ship it by end of Q3 2026 it tips into mainstream; if not, it stays a devtool convention.