ARD-discoverable identity layer for the agentic web

Your identity. Your routes.
Your terms.

Claim a universal handle, route every service from one place, and let AI agents act on your terms — verifiably, on a domain you own. USERNAME.md is the lightweight identity hub that pairs with about-me.md for your full profile and vault. Read the manifesto →

username.md/

$9 reserves yourname.md as your identity & [email protected] as your forwarding email · full refund if we don't ship by 2026-09-30

$ curl username.md/chris

{
  "username":   "chris",
  "did":       "did:web:chrisbergeron.com",
  "profile":   "chris.about-me.md",
  "github":    "github.com/chrisbergeron",
  "prefs":     "preferences.sh/chris",
  "atproto":   "@chris.bsky.social",
  "email":     "[email protected]" → "forward",
  "ai-catalog":"chrisbergeron.com/.well-known/ai-catalog.json"
}

$ curl chrisbergeron.com/.well-known/ai-catalog.json
{ "specVersion": "1.0", "host": { "identifier": "did:web:chrisbergeron.com" },
  "entries": [ /* MCP servers, A2A agents, skills */ ] }
        // ARD v0.9 (Google + Microsoft + Hugging Face spec)

The Handsfree Ecosystem

Four services, one identity. USERNAME.md connects them all.

U

USERNAME.md

The universal identity router. Claim a handle, publish a lookup table for every service you use, and let agents resolve "you" from one place.

Identity
A

about-me.md

Your home base on the internet. Public profile, signed claims, a personal vault, and safe delegation for AI agents. Pairs with your USERNAME.md handle.

Profile + Vault
P

Preferences.sh

Store and sync your preferences across tools, devices, and environments. Your settings, everywhere — powered by your USERNAME.md identity.

Preferences

How It Works

1

Claim your username

Pick a handle. It becomes your identity across USERNAME.md, about-me.md, preferences.sh, and emitter.bot.

2

Get your email route

Every handle comes with [email protected] — a forwarding address that lands in whatever inbox you already use. Per-service aliases like [email protected] tag and route mail by sender, automatically.

3

Map your services

Link your GitHub, BlueSky, email, SSH keys, or any other service to your handle. One lookup returns everything — signed and verified.

4

Connect the ecosystem

Your profile lives at about-me.md. Your preferences sync via preferences.sh. Your automations fire via emitter.bot. It all resolves through your USERNAME.md handle.

5

Query it anywhere

Use the API, CLI, or just curl. Your identity is a simple JSON document — or a signed bundle, or a DID, or an ATproto handle — depending on what asks.

Reserve your handle — $9

Founding-member reservations open now. $9 locks your handle and gives you first claim before public launch. Full refund if we don't ship by 2026-09-30.

Reserve $9