Attic

com.atticcapitalPublished by atticcapital.comOfficial publisherv0.1.1Updated Oct 27, 2026

Weekly Attic Capital reports for coins, cards, cars, and art.

VerifiedStreamable HTTPWeb executableFinance Knowledge & Memory Media & Design

Server details

Identifier: com.atticcapital/attic
Transport: Streamable HTTP
Runtime: Web executable
Trust: Verified
Published: Oct 20, 2026

Security note

MCP servers receive tool arguments from a conversation and may perform external actions. Review what a server can do before you enable it, and give it only the access it needs.

The registry verified that this server's namespace belongs to atticcapital.com, which also runs its endpoint. That identifies the publisher; it does not make the server's tools safe.

SourceWeft's checks cover whether the listing is complete and the endpoint answered; they do not review the server's code or what its tools do.

Add a badge to your README

Show readers this MCP server is listed on SourceWeft. The badge links to this page.

[![Listed on SourceWeft](https://sourceweft.com/badge/mcp/com.atticcapital%2Fattic.svg)](https://sourceweft.com/mcp/com.atticcapital%2Fattic?utm_source=readme&utm_medium=badge)

Overview

AI-generated overview

Attic Capital's weekly collectibles market reports for rare coins, sports cards, collector cars and fine art, readable through an assistant.

What you can do: Check connector status, the report week, the four markets and the 14 report pillars
Read weekly top-5 rosters and single ranked entries for a market, layer and pillar
Search roster names, summaries and report copy, and see roster and gathering changes since a date
List and read articles, podcast episodes and the gathering calendar
Fetch object dossiers and Attic Market Strength indexes (Attic Beyond, API key required)
Check whether PSA cert lookup and eBay-sold comps are configured; the sold-comp and cert tools are stubs
When to use it: Useful when you want an assistant to answer questions about Attic Capital's weekly collectibles rankings, what moved in a roster, or its articles and Creators podcast episodes, without browsing the site.
Requirements: Works as a remote endpoint or as a local npm package (attic-mcp, stdio). Public Headlines, articles, episodes and gatherings need no key. Attic Beyond layers, dossiers and indexes need an ATTIC_API_KEY sent as the X-Attic-Key header.

Before you install

Beyond layers, dossiers, indexes and the comp tools require an API key, which is a secret sent as a header. The PSA cert and sold-comp tools are stubs and return no grades or prices, so the assistant should not quote values from them. Content is limited to excerpts, not full article bodies.

Installation

In SourceWeft

Open Attic in the dashboard and add it to a workspace.
Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/com.atticcapital%2Fattic/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "attic": {
      "type": "http",
      "url": "https://mcp.atticcapital.com/mcp"
    }
  }
}

Tools

attic_status

Attic status

Current Attic connector status: API version, the weekly as-of date, the four markets, and the 14 pillars. Call this first when the user asks what week the reports cover.

Takes no parameters.

attic_list_markets

List Attic markets

List the four Attic collector markets (rare coins, sports cards, collector cars, fine art) with Headlines, Beyond, and Creators page URLs on atticcapital.com. Use this when you need the canonical page to link, not a top-5 roster.

Takes no parameters.

attic_list_pillars

List Attic pillars

List the 14 locked report pillars in order (Collectors through Insights In Depth). Use the slug with attic_get_market_report. This does not return the ranked names.

Takes no parameters.

attic_get_market_report

Get a weekly market report

Get one weekly top-5 roster for a market, layer, and pillar. Use this for 'top 5', 'who is in the report', or a Headlines / Beyond pillar. For the paragraph on one rank, call attic_get_report_entry. For a name across pillars, use attic_search. layer=beyond is Attic Beyond and needs an API key.

Parameterslayerrequiredmarketrequiredpillarrequired

attic_get_report_entry

Get one report entry

Get one ranked name from a weekly pillar pack, with its summary and a short expanded excerpt. Requires market, layer, and pillar. rank is 1-5 and defaults to 1. The excerpt is not the whole page. layer=beyond is Attic Beyond.

Parametersranklayerrequiredmarketrequiredpillarrequired

attic_search

Search Attic reports

Keyword search across roster names, summaries, and expanded report copy. The parameter is query (not q). This does not search articles or episodes. Optional market and layer filters. layer=beyond is Attic Beyond. Use attic_list_articles for the article archive.

Parameterslayerlimitqueryrequiredmarket

attic_list_gatherings

List Attic gatherings

List shows, auctions, and other gatherings on the Attic calendar. Optional market filter. Public. This is the calendar, not the Gatherings pillar of the weekly report (use attic_get_market_report with pillar gatherings for that top 5).

Parameterslimitmarket

attic_get_changes

What changed this week

Ledger of roster and gathering moves since the prior weekly cut. Use this for 'what changed', rank moves, names that entered or left a top 5. Optional since (YYYY-MM-DD), market, and layer. layer=beyond is Attic Beyond. An empty list means the rosters did not move.

Parameterslayersincemarket

attic_list_articles

List Attic articles

List published atticcapital.com articles: title, date, URL, and a short excerpt. Never the full body. Optional q matches title, slug, and excerpt. Optional market (rare-coins, sports-cards, collector-cars, art, or other) and since (YYYY-MM-DD). Newest first.

Parametersqlimitsincemarketoffset

attic_get_article

Get an Attic article

Get one atticcapital.com article by WordPress slug: title, date, excerpt, markets, dossier slugs, and episode numbers. The excerpt is a summary of at most 400 characters. Do not fetch the article HTML.

Parametersslugrequired

attic_list_episodes

List Creators episodes

List Creators & Cultural Icons podcast episodes (public): number, title, date, summary, show-notes URL, and audio URL. Optional q searches title, slug, and summary. Optional market filters the mapped collection. Newest episode number first.

Parametersqlimitmarketoffset

attic_get_episode

Get a Creators episode

Get one Creators episode by episode number or slug. Prefer episode when you have the number. Returns the summary, show notes on atticcapital.com, collection, and audio URL. Public.

Parametersslugepisode

attic_get_dossier

Get an object dossier

Get an Attic object dossier by market and slug: thesis, risk flags, related Creators episodes, and outbound links. About 38 Creators-grounded briefs. Slugs appear on articles and episodes. Attic Beyond: needs an API key. Unknown slugs 404. Do not invent a dossier.

Parametersslugrequiredmarketrequired

attic_get_indexes

Get Market Strength indexes

Attic Market Strength composites for rare coins, sports cards, collector cars, and fine art. Week-0 levels are 100 until scored inputs exist. Peer feeds may be stub_until_licensed. Omit market for the full package. Attic Beyond: needs an API key. Do not invent index levels. This is not the Price Indexes pillar of the weekly report.

Parametersmarket

attic_comps_status

Comps adapter status

Whether PSA cert lookup and the eBay-sold bridge are configured or live. No upstream price call. PCGS comps are not offered. If live is false, do not quote sold prices or grades. Public.

Takes no parameters.

attic_lookup_psa_cert

Look up a PSA cert (stub)

STUB. Does not return a PSA grade or population. PCGS comps are not offered. Do not call this to answer what a card graded or sold for. Requires an Attic API key; without one, the tool explains Attic Beyond. Never invent a cert result.

Parameterscertrequired

attic_card_sold_comps

Card sold comps (stub)

STUB. Does not return eBay sold prices for sports cards. Do not call this to price a card, and do not invent a hammer or a sold comp. Requires an Attic API key. PCGS is unrelated and is not offered.

Parametersqrequireddayslimitcategory

attic_coin_sold_comps

Coin sold comps (stub)

STUB. Does not return sold prices for coins. Do not call this to price a coin, and do not invent a hammer. Requires an Attic API key. PCGS comps are not offered.

Parametersqrequireddayslimitcategory

Version history

v0.1.1LatestOct 20, 2026

Score

75% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

Reached in the last 30 daysRequired25 pts
Auth declaredRequired10 pts
Tools listedRequired15 pts
DescriptionRequired15 pts
Logo10 pts
Documentation15 pts
Declare a GitHub repository with a README, or serve resource_documentation in the OAuth protected-resource metadata.
License10 pts
Declare a license in the repository or the registry entry.