chatdomain
registries healthyLog inTry chat →
CHATDOMAIN / MCP SESSION

Your agent
already has a shortlist.

Drop our MCP server into Claude Code and domain discovery becomes a natural part of your build loop — price checks, premium lookups and watchlist writes, all from the same session.

$npx skills add https://github.com/madarco/chatdomain-researcher --skill domain-researcher
~/projects/marginalia — claude (mcp: chatdomain)⌘K
● claude · claude-sonnet-4.5 · ~/projects/marginalia
› Help me find a domain for a calm notes app for researchers. Sub $5k, prefer .com/.ai/.io.
✶ Thinking… brainstorming 8 candidate names, then sweeping TLDs via chatdomain-researcher.
◆ tool chatdomain.sweep_tld
{ names: ["marginalia","folio","quorum","lumen","stacksmith","sidenote","inkwell","pagelet"], tlds: ["com","ai","io"] }
✓ 1680 lookups · 1,204ms · 4 registrars reconciled
DOMAINSTATUSBEST PRICEREGISTRAR
marginalia.compremium$3,800Sedo
marginalia.aitaken——
marginalia.iotaken——
folio.comtaken——
folio.aiopen$74Netim
folio.iopremium$24,500Sedo
quorum.comtaken——
quorum.aiopen$79Vercel
quorum.ioopen$37Netim
lumen.aiopen$79Vercel
marginalia.soopen$48Netim
sidenote.devopen$14Vercel
Three stand out:
• marginalia.so — $48/yr via Netim. Poetic, unique, registrable today.
• folio.ai — $74/yr via Netim (save $25 vs GoDaddy). Short, on-brand for research.
• quorum.io — $37/yr via Netim. Clean + memorable, though .io licensing is shifting.
Want me to open the watchlist on marginalia.com ($3,800 premium, listed on Sedo) in case it drops?
›
Domains tracked312,480,291across all live registries
TLDs covered1,468gTLDs + ccTLDs + new gTLDs
Aftermarket listings4,812,004refreshed every 6h by Inngest
pitchroom.com+$12· Vercel✦lumen.ai−$4· Netim✦folio.dev+$0.50· Namecheap✦quorum.io+$3· GoDaddy✦stacksmith.co−$1· Vercel✦marginalia.app+$2· Vercel✦sidenote.studio−$0.75· Netim✦heron.xyz+$0.10· Namecheap✦pitchroom.com+$12· Vercel✦lumen.ai−$4· Netim✦folio.dev+$0.50· Namecheap✦quorum.io+$3· GoDaddy✦stacksmith.co−$1· Vercel✦marginalia.app+$2· Vercel✦sidenote.studio−$0.75· Netim✦heron.xyz+$0.10· Namecheap✦pitchroom.com+$12· Vercel✦lumen.ai−$4· Netim✦folio.dev+$0.50· Namecheap✦quorum.io+$3· GoDaddy✦stacksmith.co−$1· Vercel✦marginalia.app+$2· Vercel✦sidenote.studio−$0.75· Netim✦heron.xyz+$0.10· Namecheap✦
§ 02Four registrars, one request

One source of truth.
Three price checks.

Vercel tells us whether a domain is actually registrable. GoDaddy, Namecheap and Netim tell us what it would cost you elsewhere. We reconcile the spread so you always know when to switch registrar — and when to walk away.

V
Vercel
source of truth
G
GoDaddy
N
Namecheap
Ñ
Netim
keyword
updated · 03s ago
DomainVercelGoDaddyNamecheapNetimΔ
marginalia.comtaken
$12$14$11$1327%
marginalia.aipremium
—————
marginalia.iotaken
$39$49$42$3732%
marginalia.devopen
$14●$18$15$14●29%
marginalia.coopen
$28$34$29$27●26%
marginalia.apppremium
—————
● = best price · refreshed hourly by Inngest workflowExport as CSV →
§ 03Premium & aftermarket

The good ones are already taken.

Our Inngest workers crawl Sedo, Afternic and Dan every six hours. When the perfect name changes hands, you hear about it first — with a price, a negotiation window, and a history.

SedoAfternicDan+ 4 marketplaces
heron.compremium
listed 21y ago · via Sedo · traffic: medium
price history
$38,000
buy-now or make offer
folio.aipremium
listed 3y ago · via Sedo · traffic: low
price history
$24,500
buy-now or make offer
quorum.iopremium
listed 8y ago · via Afternic · traffic: low
price history
$12,900
buy-now or make offer
lumen.apppremium
listed 4y ago · via Dan · traffic: low
price history
$8,400
buy-now or make offer
stacksmith.copremium
listed 2y ago · via Sedo · traffic: none
price history
$3,200
buy-now or make offer
marginalia.sopremium
listed 1y ago · via Dan · traffic: none
price history
$1,890
buy-now or make offer
§ 04For humans and agents

Your agents
can shop too.

A type-safe oRPC surface, two plain REST endpoints, and a Model Context Protocol server so your Claude session can check availability the moment it suggests a name.

GET
/api/available
Boolean check across 40+ TLDs.
GET
/api/prices
Reconciled pricing from all four registrars.
MCP
/mcp
Drop-in server for Claude Desktop & Code.
live
# Install the chatdomain-researcher skill
$ npx skills add https://github.com/madarco/chatdomain-researcher \
    --skill domain-researcher
# Works in Claude Code, Cursor, OpenClaw, Codex, OpenCode, etc.
✓ installed domain-researcher@1.4.0
✓ registered tools: check · prices · sweep · watchlist
✓ auth: bearer (via CHATDOMAIN_KEY)