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smithsonian-mcp-server

R0· no sign-in

Search 14.5M Smithsonian Open Access objects, get CC0 images, find cross-collection connections.

v0.3.9 · active · repository · descriptor JSON · versions

An agent can connect right now, no human step.Remote endpoint, no authentication, reachable on the last probe.
Quality89good
Trust94of 100
Uptime, 30 days100%
Latency p50183 ms

Connect

8 clients · secrets stay placeholders
{
  "mcpServers": {
    "smithsonian-mcp-server": {
      "type": "http",
      "url": "https://smithsonian.caseyjhand.com/mcp"
    }
  }
}
claude mcp add --transport http smithsonian-mcp-server https://smithsonian.caseyjhand.com/mcp
[mcp_servers.smithsonian-mcp-server]
url = "https://smithsonian.caseyjhand.com/mcp"
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "smithsonian-mcp-server": {
      "type": "remote",
      "url": "https://smithsonian.caseyjhand.com/mcp",
      "enabled": true
    }
  }
}
{
  "mcpServers": {
    "smithsonian-mcp-server": {
      "type": "http",
      "url": "https://smithsonian.caseyjhand.com/mcp"
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=smithsonian-mcp-server&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vc21pdGhzb25pYW4uY2FzZXlqaGFuZC5jb20vbWNwIn0%3D"
}
{
  "servers": {
    "smithsonian-mcp-server": {
      "type": "http",
      "url": "https://smithsonian.caseyjhand.com/mcp"
    }
  }
}
{
  "mcpServers": {
    "smithsonian-mcp-server": {
      "httpUrl": "https://smithsonian.caseyjhand.com/mcp"
    }
  }
}
extensions:
  "smithsonian-mcp-server":
    enabled: true
    name: "smithsonian-mcp-server"
    type: streamable_http
    uri: "https://smithsonian.caseyjhand.com/mcp"
    timeout: 300

Quality 89 / 100good

protocol88 · weight 25
  • pass
    protocol.modernsupports 2026-07-28 (server/discover)
  • pass
    protocol.statelessanswers without a session
  • pass
    protocol.transportstreamable HTTP
  • warn
    protocol.list_ttltools/list declares ttlMs 0, so clients re-fetch it on every use
authorizationn/a · weight 15
  • n/a
    auth.prm, auth.as_metadata, auth.cimdno remote uses OAuth
  • n/a
    auth.secret_in_urlno templated URL
tool hygiene86 · weight 30
  • pass
    tools.descriptionsevery tool has a description
  • pass
    tools.description_lengthdescriptions are concise
  • pass
    tools.schemasevery tool has an object input schema
  • pass
    tools.annotations6 of 6 tools declare readOnlyHint or destructiveHint
  • fail
    tools.directory_hintsno tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: smithsonian_search_objects (destructiveHint); smithsonian_get_media (destructiveHint); smithsonian_browse_category (destructiveHint); …
  • pass
    tools.token_costabout 3,372 tokens to load every tool
  • pass
    tools.api_dumptools are not a one-to-one API dump
stability100 · weight 15
  • pass
    stability.changes4 tool changes in 30 days
  • pass
    stability.rug_pullno tool changed its meaning under the same name
dependenciesn/a · weight 15

6 tools, about 3,372 tokens to load them all · tool set 32acf0c4ae05 · tools last changed 2026-10-18 · checked 2026-10-20 10:03 UTC

Tool changes

  • smithsonian_find_relatedchangedoutput schema
  • smithsonian_get_objectchangeddescription, output schema
    before

    Fetch a normalized catalog metadata projection for a Smithsonian object by its record_id (from smithsonian_search_objects results). Returns the exposed catalog fields — title, dates, description, makers, materials, dimensions, places, cultures, topics, exhibitions, credit line, identifiers, rights, and a media summary. The media summary is a count; full image URLs come from smithsonian_get_media.

    after · 72% of words in common

    Fetch a normalized catalog metadata projection for a Smithsonian object by its record_id (from smithsonian_search_objects results). Returns title, dates, description, labeled notes, makers, materials, dimensions, places, cultures, topics, exhibitions, credit line, identifiers, rights, and a media summary. Natural-history records can include scientific_names, taxonomy, and collection coordinates without inferred precision. The media summary is a count; full image URLs come from smithsonian_get_media.

  • smithsonian_list_termschangedoutput schema
  • smithsonian_search_objectschangedinput schema

Full history: list_changes · trend: quality JSON.

Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed. How it is computed.

Trust 94 / 100

provenance80
liveness100
freshness100
hygiene100

+repository +namespace-matches-repo +reachable +uptime-100% +updated-2d-ago

Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. How it is computed.

Dependencies

@cyanheads/[email protected] npmthis version is not known to the dependency resolver

@cyanheads/[email protected] npmthis version is not known to the dependency resolver

Dependency graphs from deps.dev; advisories from OSV.dev, including the GitHub Advisory Database and the PyPI Advisory Database; all CC BY 4.0. The graph is what a clean install of this version resolves today; nothing was installed or run. How it is checked.

Endpoints

remoteauthreachableuptime 30dp50protocollast ok
https://smithsonian.caseyjhand.com/mcp streamable-httpnoneyes100%183 ms2026-07-282026-10-20
packageregistryversionruntimesecrets
@cyanheads/smithsonian-mcp-servernpm0.3.9npx
@cyanheads/smithsonian-mcp-servernpm0.3.9npx

Tools (6)

smithsonian_browse_categoryread-onlyBrowse Smithsonian objects within one exact category — a single museum (mode "museum"), culture, indexed date term (mode "period"), object type (mode "medium"), or subject term (mode "topic"). The value must be an exact indexed category term, not free text: resolve museum, culture, period, and topic vocabulary with smithsonian_list_terms first (object_type is not enumerable there — harvest it from smithsonian_search_objects results, and treat each casing as its own category, since a harvested object_type covers only the casing it was written in). Returns the category total count, a page of matching objects, and a museum breakdown of that page; page the full category with start and rows. For open-ended or topic discovery, start with smithsonian_search_objects instead.
smithsonian_find_relatedread-onlyDiscover objects across Smithsonian collections related to a given anchor object, matched on shared metadata signals — culture, period, object type, named parties, and topic terms. Each related object is tagged with the signals that connected it to the anchor; a named-party signal carries the catalog's own role for that party (maker, Collector, Donor, issuing authority, …), not a fixed "maker" label. Matches surface across museums — an NASM aerospace anchor can pull related objects from NMNHPALEO, SAAM, and NMAH.
smithsonian_get_mediaread-onlyReturn every CC0 (open-access) image for a Smithsonian object at multiple resolutions. The tool never returns an empty list — it names the reason instead: an object with nothing digitized, an object whose media is entirely non-image (scanned books, 3D models, sound recordings), and an object whose images are entirely non-CC0 each fail with their own reason. Each image entry includes thumbnail (~120px), screen-size (~800px), and high-resolution JPEG/TIFF URLs with pixel dimensions. The cc0_only filter on smithsonian_search_objects surfaces objects that have downloadable CC0 images.
smithsonian_get_objectread-onlyFetch a normalized catalog metadata projection for a Smithsonian object by its record_id (from smithsonian_search_objects results). Returns title, dates, description, labeled notes, makers, materials, dimensions, places, cultures, topics, exhibitions, credit line, identifiers, rights, and a media summary. Natural-history records can include scientific_names, taxonomy, and collection coordinates without inferred precision. The media summary is a count; full image URLs come from smithsonian_get_media.
smithsonian_list_termsread-onlyEnumerate the valid term vocabulary for an indexed Smithsonian filter field (unit_code, culture, place, date, online_media_type, topic). Terms are a controlled vocabulary — often plural or qualified (e.g. "Paintings", not "Painting") — so guessed filter values tend to return nothing. Returns a page of the field's distinct term values; large vocabularies (topic has 133k terms, place 114k) page via start and rows. For unit_code, each code is returned with its museum name and contains matches the name as well as the code, so a museum name resolves to its code in one call.
smithsonian_search_objectsread-onlyRecommended first step for open-ended or topic discovery: free-text search across 14.5 million Smithsonian objects, with optional exact filters. Filters narrow by museum unit, object type, indexed date term, culture, geographic place, subject topic, named party, and online/CC0 availability. Returns curated summaries (title, date, museum, thumbnail URL, CC0 flag) with the total match count. The record_id in each result is the identifier for smithsonian_get_object, smithsonian_find_related, and smithsonian_get_media. To browse one exact category — a single museum, culture, date term, object type, or topic — use smithsonian_browse_category instead.

Schemas: list_tools.

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Official server.json
{
  "name": "io.github.cyanheads/smithsonian-mcp-server",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "remotes": [
    {
      "url": "https://smithsonian.caseyjhand.com/mcp",
      "type": "streamable-http"
    }
  ],
  "version": "0.3.9",
  "packages": [
    {
      "version": "0.3.9",
      "transport": {
        "type": "stdio"
      },
      "identifier": "@cyanheads/smithsonian-mcp-server",
      "runtimeHint": "npx",
      "registryType": "npm",
      "registryBaseUrl": "https://registry.npmjs.org",
      "environmentVariables": [
        {
          "name": "SMITHSONIAN_API_KEY",
          "format": "string",
          "isRequired": true,
          "description": "Required. Free API key from https://api.data.gov/signup — approval is instant."
        },
        {
          "name": "MCP_LOG_LEVEL",
          "format": "string",
          "default": "info",
          "description": "Sets the minimum log level for output (e.g., 'debug', 'info', 'warn')."
        }
      ]
    },
    {
      "version": "0.3.9",
      "transport": {
        "url": "http://localhost:3010/mcp",
        "type": "streamable-http"
      },
      "identifier": "@cyanheads/smithsonian-mcp-server",
      "runtimeHint": "npx",
      "registryType": "npm",
      "registryBaseUrl": "https://registry.npmjs.org",
      "environmentVariables": [
        {
          "name": "MCP_TRANSPORT_TYPE",
          "value": "http",
          "format": "string",
          "description": "Selects the HTTP transport."
        },
        {
          "name": "SMITHSONIAN_API_KEY",
          "format": "string",
          "isRequired": true,
          "description": "Required. Free API key from https://api.data.gov/signup — approval is instant."
        },
        {
          "name": "MCP_HTTP_HOST",
          "format": "string",
          "default": "127.0.0.1",
          "description": "The hostname for the HTTP server."
        },
        {
          "name": "MCP_HTTP_PORT",
          "format": "string",
          "default": "3010",
          "description": "The port to run the HTTP server on."
        },
        {
          "name": "MCP_HTTP_ENDPOINT_PATH",
          "format": "string",
          "default": "/mcp",
          "description": "The endpoint path for the MCP server."
        },
        {
          "name": "MCP_AUTH_MODE",
          "format": "string",
          "default": "none",
          "description": "Authentication mode to use: 'none', 'jwt', or 'oauth'."
        },
        {
          "name": "MCP_LOG_LEVEL",
          "format": "string",
          "default": "info",
          "description": "Sets the minimum log level for output (e.g., 'debug', 'info', 'warn')."
        }
      ]
    }
  ],
  "repository": {
    "url": "https://github.com/cyanheads/smithsonian-mcp-server",
    "source": "github"
  },
  "description": "Search 14.5M Smithsonian Open Access objects, get CC0 images, find cross-collection connections."
}