com.slashyear/mcp

up checked 2026-11-11T08:37:51.853Z

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Publisher-provided title

slashyear - sourced history

Publisher-provided description

Sourced history by year: events, world leaders, prices and No. 1 songs, each with its source.

Summary by lookupd

Look up sourced historical events, leaders, prices, No. 1 songs and Nobel Prizes by year, date or country, with citations to source…

Install

Claude Code, remote (streamable-http)

claude mcp add --transport http mcp https://slashyear.com/mcp

Codex, remote (streamable-http)

codex mcp add mcp --url https://slashyear.com/mcp

Cursor, remote (streamable-http) → .cursor/mcp.json

{
  "mcpServers": {
    "mcp": {
      "url": "https://slashyear.com/mcp"
    }
  }
}

Other clients: docs. Or tell your agent: Set up lookupd for me: read https://lookupd.com/agent.md and follow it.

Tools (16 tools)

Publisher-provided text

• search_history Full-text search across every dated entry in the historical record, plus the subjects that match. Each entry is a sentence quoted verbatim from a numbered Engli
• get_year Everything the record holds for one year: the headline summary and every dated entry, grouped by subject, each with its source revision.
• get_day One calendar day across every recorded year — what happened on 4 July in all of them. This aggregate exists in no single encyclopedia article.
• get_timeline One subject's whole record in date order: every dated entry across all years in which Wikipedia's editors linked to it, with its Wikidata id for joining to othe
• get_country One country's dated record, century by century, harvested from the per-country year articles English Wikipedia writes separately ('1969 in Japan') and never ind
• get_year_facts What a year (1800-2025) looked like in numbers, from outside sources rather than encyclopedia prose: world population, U.S. CPI and what a dollar then is worth
• get_leaders Who led a country (or every country) in a year, 1800-2025: heads of state, heads of government and ruling-party leaders, in the order they held the post. Each n
• get_number_one_song The Billboard Hot 100 No. 1 single on a given date (1958-08-04 onward): the first chart issue dated on or after that day, quoted from a cited Wikipedia revision
• convert_dollars Inflation-adjust U.S. dollars between years with the BLS CPI-U (1913 onward). Omit to_year for the latest published month.
• get_world_on_date The world on one date in a single answer: the dated entries for that exact day, births and deaths that day, every state's office holders that year, the Billboar
• check_claim Check one dated sentence against the record before stating it. Leaders, Billboard No. 1 singles and Nobel Prizes get a structured check that can return 'support
• get_nobel_prizes Nobel laureates for a year (1901 on) or for a category across years, from the Nobel Prize API and kept only where Wikidata records the same prize in the same ye
• get_official_series Official data series by year from the agencies that publish them, each cross-checked against a second copy: U.S. unemployment, federal funds rate, GDP, populati
• get_disagreements Where two sources slashyear checks against each other disagree: leaders' terms (Wikipedia lists vs Wikidata), birth and death dates (Wikipedia year articles vs
• list_countries Browse the countries that have a record of their own, largest first.
• list_subjects Browse the subjects that have a timeline, largest record first.

Details

• Version: 1.2.0
• Transports: streamable-http
• Uptime (7 days): 100%
• Median latency: 275 ms
• First indexed: 2026-11-01T08:58:19.319Z
• Last seen in registry: 2026-11-01T08:58:19.343Z
• Website: https://slashyear.com

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