The Collector's Intelligence Platform

Every Collector
Has a Grail

Hunt smarter. Collect with confidence. Never overpay.

Built for Every Obsession

Whatever you collect, Grail Den speaks your language.

Eight Tools. One Mission.

Every module in the Den, built for obsessive collectors who demand precision, speed, and an unfair advantage. Your Den dashboard, in-app messages, and the resources library tie them together.

Hunt

Search globally. Find your next grail.

Read more about Hunt

One search runs across all 14 eBay sites at once. Listing titles translate on demand into 8 languages, a Japanese or Korean query is translated to English before the search, every price is shown in your currency, and items most collectors never see come up.

Connect your eBay account from Hunt; you sign in on eBay’s own page.

14 eBay sites · Titles in 8 languages · Prices in your currency

Collect

Catalog every piece and its history.

Read more about Collect

Catalog every piece with photos, provenance chains, and condition grading. Track value over time. Generate insurance reports from your own replacement values. Know your collection's true worth, always.

Every item opens to its tabs: overview, photos, provenance, authentication, trades, valuation, insurance, and notes.

Value Tracking · Insurance Reports · Provenance Chains

Research

Make informed collecting decisions.

Read more about Research

Values come from sold comps across major auction houses and marketplace history, with a signer database of 3,000+ names behind every lookup. Real prices anchored to recent transactions, not list prices.

Value from sold comps · 3,000+ signers · Live auction tracking

TTM Database

Find addresses for signing requests.

Read more about TTM Database

Send Through-The-Mail (TTM) requests to celebrities, athletes, and public figures. The full curated address index is open to every collector, read live from the Grail Den database, for planning campaigns with confidence.

Scholar: 201K+ Addresses · Always Updated

Events & Signing Watches

Follow the signers you collect.

Read more about Events & Signing Watches

17,000+ signing events on record, refreshed daily from the convention circuit. Watch a signer's name and get an in-app alert when they are announced at a show or signing. Hunter and up.

17,000+ signing events · Daily refresh · In-app alerts

Private Deal Tracker Scholar plan

Track deals, partners, payments, and the ledger.

Read more about Private Deal Tracker

Track consignments and private sales end to end: the deal, the partners, the payments, and a ledger that actually closes. Proposals go out from the tracker and land as deals when they are accepted. Scholar tier.

Deals · Payments · Ledger · Proposals

Pass It Down

Keep provenance with the collection.

Read more about Pass It Down

Each piece records its COA provider and number, serial, provenance notes, appraiser and appraisal date, what you paid and what it would cost to replace. Export the whole collection as a CSV spreadsheet, or print the replacement-value report with each piece’s COA, serial, location and value, so the people who inherit it know what they have.

CSV export · Printable value report · COA & provenance on record

Intelligence That Compounds

Pro features that give you an unfair advantage in the hunt.

Authentication Hub by Screen Grade

Submit a photo or eBay link. A working authenticator with deep experience in entertainment autographs examines the signature against signer exemplars on file, weighs era and signing context, and issues a documented opinion.

Quick opinions by Screen Grade authenticators, $9 per item.

Learn more

Smart Comp Filtering

Not all sold comps are equal. Values anchored to the median of real sold comps, not asking prices.

Smart Import

Bring your collection in from a CSV spreadsheet, preview it first, and undo an import in one step. Hours become minutes.

Counts as of 2026-10-24. Through-the-mail addresses are read live from the Grail Den database when this page loads; the marketplaces are the 14 eBay sites Hunt searches at once on every tier (US, UK, DE, FR, IT, ES, NL, PL, AU, CA, AT, CH, BE, IE); the languages are the 8 Hunt translates listings into (German, French, Italian, Spanish, Dutch, Polish, Japanese, Portuguese).

Pricing for Every Collector

Start free. Upgrade when the hunt demands it.

Membership comparison: the Apprentice, the Hunter and the Scholar, with what each path includes
Compare the three paths

Free

The Apprentice

$0

Start free, no card

Start Free
Most Popular

Collector

The Hunter

$9.99/ month

$99.90/year, save 17%

Become a Hunter
Power User

Pro

The Scholar

$14.99/ month

$149.90/year, save 17%

Become a Scholar
Marketplace seller feeOn every physical-goods sale you list on Grail Den.8.5%The standard rate7.0%Discounted from the 8.5% standard rate. A $700 sale covers the membership.6.0%The deepest discount from the 8.5% standard rate. $600 a month in member sales covers the membership.
Global HuntSearch all 14 eBay sites at once, listings translated into 8 languages. US, UK, DE, FR, IT, ES, NL, PL, AU, CA, AT, CH, BE, IE.✓✓✓
Visual searchDrop a photo, find the listing.5 / monthUnlimitedPull every active listing across the global feed. Soft cap 100/mo for normal use; contact us if you hit it.UnlimitedEverything in Hunter.
Collection vaultDocument the pieces you own. Photos, notes, and provenance fields per item.25 itemsYour starter collection.100 itemsUnlimitedNo cap. The entire hoard.
Through-the-Mail databaseReference tool for identifying signed memorabilia. Vet celebrities by through-the-mail signing reliability.FullFullFull
Private Deal Tracker✕✕✓
Signing watches✕✓✓
Autograph pricing✕✕✓
Insurance report✓✓✓
Beta accessNew collector tools as they ship.✕First in linePriority

Your Grail Is Out There.
We'll Help You Find It.

Hunt smarter. Collect with confidence. Never overpay.

Enter the Den

Opinions are the authenticator’s expert judgment, not a guarantee of authenticity. For high-value items ($2,500+), we recommend pairing with PSA, JSA, Beckett, or SWAU certification.