# Marks & Signatures

> Identify marks on pottery, silver, jewelry and glass, and look up their makers.

- name: com.marksandsignatures/marksandsignatures-com
- version: 1.0.0
- connection class: R0 (autonomous)
- trust: 96/100
- quality: 91/100 (strong)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/com.marksandsignatures%2Fmarksandsignatures-com
- tools: https://api.protogrid.dev/v1/servers/com.marksandsignatures%2Fmarksandsignatures-com/tools

**An agent can connect right now, no human step.** Remote endpoint, no authentication, reachable on the last probe.

## Connection (mcpServers)

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


## Trust

- hygiene: 100
- liveness: 100
- freshness: 100
- provenance: 85
- drivers: +repository +dns-namespace +website +reachable +uptime-100% +updated-8d-ago
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 91/100 (strong)

### protocol: 75 (weight 25)

- warn `protocol.modern`: newest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
- n/a `protocol.stateless`: only applies to 2026-07-28 servers
- pass `protocol.transport`: streamable HTTP
- n/a `protocol.list_ttl`: only applies to 2026-07-28 servers

### authorization: n/a (weight 15)

- n/a `auth.prm`, `auth.as_metadata`, `auth.cimd`: no remote uses OAuth
- n/a `auth.secret_in_url`: no templated URL

### tool hygiene: 100 (weight 30)

- pass `tools.descriptions`: every tool has a description
- pass `tools.description_length`: descriptions are concise
- pass `tools.schemas`: every tool has an object input schema
- pass `tools.annotations`: 5 of 5 tools declare readOnlyHint or destructiveHint
- pass `tools.directory_hints`: every tool declares readOnlyHint, destructiveHint, idempotentHint and openWorldHint
- pass `tools.token_cost`: about 1,268 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump
- pass `tools.hidden_text`: no hidden text in tool names, descriptions, schemas or annotations

### stability: 100 (weight 15)

- pass `stability.changes`: no tool changes in 30 days
- pass `stability.rug_pull`: no tool changed its meaning under the same name
- pass `stability.new_links`: no tool change named a new site

### dependencies: n/a (weight 15)

- n/a `deps.known_vulns`, `deps.mcp_sdk_version`, `deps.resolvable`: no npm or PyPI package

- tools: 5, about 1,268 tokens to load them all
- tool set hash: 61a0897f4c6f570604160540fa6abecd
- badge: [![protogrid quality](https://protogrid.dev/badge/com.marksandsignatures/marksandsignatures-com.svg)](https://protogrid.dev/servers/com.marksandsignatures/marksandsignatures-com)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

_No tool definition changes recorded._

## Remotes

- https://marksandsignatures.com/api/mcp (streamable-http, auth none, reachable true, uptime30d 1)

## Packages

_none_

## Tools (5)

- `find_makers`: Searches makers and their aliases by name across pottery, silver, jewelry, glass and other maker marks, optionally within one category or country. Returns pages of makers with place, active years, number of marks and an example mark image.
- `get_details`: Returns the full public record for one mark or one maker: wording, type, period and dating notes for a mark; history, aliases, what to look for and look-alike makers for a maker. Includes links to the matching pages on Marks & Signatures.
- `get_maker_marks`: Returns the marks of one maker with images, wording, type and period, in date order. Accepts a maker id or a mark id; with a mark id that mark comes first.
- `identify_mark`: Ranks catalogue marks that match a description of a mark: visible wording or letters, symbols, outline shape, colour, how it was made, category, country and years of use. Returns pages of marks with maker, image, period and the details that matched, plus a link to the same search on Marks & Signatures.
- `list_categories`: Lists the five mark categories with the number of marks and makers in each and a link to each category page.