# Attic (remote · mcp.atticcapital.com)

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

- Trust score: 66/100 (medium)
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-10-24

## Components

- remote · `mcp.atticcapital.com`: 66/100 (this document), [markdown](https://verifymcp.io/servers/com-atticcapital-attic/mcp.md), [page](https://verifymcp.io/servers/com-atticcapital-attic/mcp)
- npm · `attic-mcp`: 57/100, [markdown](https://verifymcp.io/servers/com-atticcapital-attic/attic-mcp.md), [page](https://verifymcp.io/servers/com-atticcapital-attic/attic-mcp)

## Channel facts

- Endpoint: `https://mcp.atticcapital.com/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `0.1.1`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-10-24.

- **Endpoint Security**: 63/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one.
  - HTTPS enforcement could not be verified: the plaintext port answered with HTTP 406, which proves neither a plaintext path nor enforcement.
  - HSTS check failed: the Strict-Transport-Security header is absent.
  - DNSSEC check failed: this domain isn't protected by DNSSEC.
- **Transport & Reachability**: 100/100
  - Verified streamable-http transport via a live MCP handshake.
- **Schema Quality & AI Usability**: 62/100
  - 36% of prompts and resources have a non-trivial description (not blank, and not just the item's name).
  - AI-judged instruction clarity (good).
  - Tool/resource definitions use about 2430 tokens (~63/item across 38 items; 18 tools + 20 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 13/100
  - Stability observed for 4 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 100/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 100% of tool parameters carry a description.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 18 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 20 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

### How do I install the Attic MCP server?

Attic is a hosted endpoint at https://mcp.atticcapital.com/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.

### Claude

```bash
claude mcp add --transport http com-atticcapital-attic 'https://mcp.atticcapital.com/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "com-atticcapital-attic": {
      "url": "https://mcp.atticcapital.com/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "com-atticcapital-attic": {
      "type": "http",
      "url": "https://mcp.atticcapital.com/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.com-atticcapital-attic]
url = "https://mcp.atticcapital.com/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "com-atticcapital-attic": {
      "type": "remote",
      "url": "https://mcp.atticcapital.com/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add com-atticcapital-attic --url 'https://mcp.atticcapital.com/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  com-atticcapital-attic:
    url: "https://mcp.atticcapital.com/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "com-atticcapital-attic": {
      "Transport": "http",
      "Url": "https://mcp.atticcapital.com/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add com-atticcapital-attic -t streamable-http -u 'https://mcp.atticcapital.com/mcp'
```

### Other

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

The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-10-23 (score 66, +1)

No change was recorded against any check on this day. Stability & Change Management went from 7 to 10. That category is still filling its 30-day observation window: 2 days of observed history at the previous scan, 3 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-21 (score 65, +1)

- [functional improvement] Stability: unverified → 0.03

### 2026-10-20 (score 64)

First indexed and scored.

## MCP tools (18)

### `attic_status` (~46 tokens)

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.

### `attic_list_markets` (~63 tokens)

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.

### `attic_list_pillars` (~44 tokens)

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.

### `attic_get_market_report` (~206 tokens)

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.

Input parameters:

- `layer` (string, required): headlines (public weekly top 5) or beyond (Attic Beyond, paid).
- `market` (string, required): Market: rare-coins, sports-cards, collector-cars, or art. Names such as Rare Coins or fine art are accepted.
- `pillar` (string, required): Pillar slug or name. Slugs: collectors, the-objects, houses, price-indexes, gatherings, brands-of-influence, wealth-transfer, asset-based-lending, authentication, infrastructure, independent-appraise…

### `attic_get_report_entry` (~206 tokens)

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.

Input parameters:

- `layer` (string, required): headlines (public weekly top 5) or beyond (Attic Beyond, paid).
- `market` (string, required): Market: rare-coins, sports-cards, collector-cars, or art. Names such as Rare Coins or fine art are accepted.
- `pillar` (string, required): Pillar slug or name. Slugs: collectors, the-objects, houses, price-indexes, gatherings, brands-of-influence, wealth-transfer, asset-based-lending, authentication, infrastructure, independent-appraise…
- `rank` (integer): Rank from 1 to 5. Defaults to 1.

### `attic_search` (~128 tokens)

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.

Input parameters:

- `layer` (string): Optional layer filter. Omit to search the public index.
- `limit` (integer): How many hits to return. Default 8, max 20.
- `market` (string): Optional market filter.
- `query` (string, required): Keywords, at least 2 characters. Sent as the query parameter.

### `attic_list_gatherings` (~88 tokens)

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).

Input parameters:

- `limit` (integer): How many gatherings. Default 12, max 40.
- `market` (string): Optional market filter.

### `attic_get_changes` (~144 tokens)

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.

Input parameters:

- `layer` (string): headlines is public. beyond is Attic Beyond.
- `market` (string): Market: rare-coins, sports-cards, collector-cars, or art. Names such as Rare Coins or fine art are accepted.
- `since` (string): Optional prior date, YYYY-MM-DD. Omit for the retained previous cut.

### `attic_list_articles` (~165 tokens)

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.

Input parameters:

- `limit` (integer): Default 8, max 20.
- `market` (string): Optional market: rare-coins, sports-cards, collector-cars, art, fine-art, or other.
- `offset` (integer): Skip this many articles. Default 0.
- `q` (string): Optional keyword over title, slug, and excerpt.
- `since` (string): Keep articles published on or after this YYYY-MM-DD date.

### `attic_get_article` (~77 tokens)

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.

Input parameters:

- `slug` (string, required): Article slug, such as nolan-ryan. From attic_list_articles.

### `attic_list_episodes` (~112 tokens)

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.

Input parameters:

- `limit` (integer): Default 8, max 20.
- `market` (string): Optional market filter.
- `offset` (integer): Skip this many episodes.
- `q` (string): Optional keyword over title, slug, and summary.

### `attic_get_episode` (~76 tokens)

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.

Input parameters:

- `episode` (integer): Episode number. Preferred over slug.
- `slug` (string): Episode slug if you do not have the number.

### `attic_get_dossier` (~130 tokens)

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.

Input parameters:

- `market` (string, required): Market: rare-coins, sports-cards, collector-cars, or art. Names such as Rare Coins or fine art are accepted.
- `slug` (string, required): Dossier slug from an article or episode, such as a Creators object slug.

### `attic_get_indexes` (~119 tokens)

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.

Input parameters:

- `market` (string): Optional market. Index slugs are rare-coin, sports-card, collector-car, and art. Plural report slugs are accepted.

### `attic_comps_status` (~53 tokens)

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.

### `attic_lookup_psa_cert` (~84 tokens)

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.

Input parameters:

- `cert` (string, required): PSA certification number. The live lookup is not enabled.

### `attic_card_sold_comps` (~124 tokens)

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.

Input parameters:

- `category` (string): Defaults to the card route.
- `days` (integer): Lookback in days. Default 30.
- `limit` (integer): Default 10, max 25.
- `q` (string, required): Card keywords. No sold prices are returned while this route is a stub.

### `attic_coin_sold_comps` (~116 tokens)

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.

Input parameters:

- `category` (string): Defaults to coins on this route.
- `days` (integer): Lookback in days. Default 30.
- `limit` (integer): Default 10, max 25.
- `q` (string, required): Coin keywords. No sold prices are returned while this route is a stub.

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/com-atticcapital-attic/mcp#diagnostics

## Score history

- 2026-10-24: 66
- 2026-10-23: 66
- 2026-10-22: 65
- 2026-10-21: 65
- 2026-10-20: 64

## Common questions

### What is the Attic MCP server?

Attic is an MCP server listed in the public MCP registry as com.atticcapital/attic. Weekly Attic Capital reports for coins, cards, cars, and art. This page covers its hosted endpoint (https://mcp.atticcapital.com/mcp).

### Is the Attic MCP server safe to use?

Attic scores 66 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.

### What tools does the Attic MCP server expose?

Attic exposes 18 tools: attic_status, attic_list_markets, attic_list_pillars, attic_get_market_report, attic_get_report_entry, and 13 more. Their descriptions and schemas cost roughly 1,981 tokens of context every time the server is loaded.

### Does the Attic MCP server require authentication?

No. We connected to Attic without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

### Is the Attic MCP server still maintained?

Attic is still listed as active in the MCP registry. We last reached this channel on 24 October 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

## Links

- Remote endpoint: https://mcp.atticcapital.com/mcp
- Website: https://atticcapital.com/
- Changelog RSS feed: https://verifymcp.io/servers/com-atticcapital-attic/mcp.xml
- Changelog JSON feed: https://verifymcp.io/servers/com-atticcapital-attic/mcp.json
- HTML version of this page: https://verifymcp.io/servers/com-atticcapital-attic/mcp