MCP server

slashyear - sourced history Official

com.slashyear/mcp

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

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

Website

At a glance

Type

MCP server

Publisher

slashyear.com (verified by the MCP Registry)

Status

Working at last check

Tools

11

Token cost

About 1,462 tokens per request

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

26 Oct 2026, 08:29 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

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

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.slashyear]
url = "https://slashyear.com/mcp"

Gemini CLI

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

Cursor

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

VS Code

{"servers":{"slashyear":{"type":"http","url":"https://slashyear.com/mcp"}}}

Antigravity

agy mcp add slashyear https://slashyear.com/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"slashyear","server_url":"https://slashyear.com/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"slashyear","server_url":"https://slashyear.com/mcp"}

Tools

• convert_dollars ~112 tokens
  Inflation-adjust U.S. dollars between years with the BLS CPI-U (1913 onward). Omit to_year for the latest published month.
• get_country ~190 tokens
  One country's dated record, century by century, harvested from the per-country year articles English Wikipedia writes separately ('1969 in Japan') and never indexes together. Use this when the question is about a nation rather than a year or a subject.
• get_day ~96 tokens
  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_leaders ~202 tokens
  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 name is quoted from Wikipedia's list of state leaders (revision id given) and kept only where the person's Wikidata record holds the same pos
• get_number_one_song ~94 tokens
  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.
• get_timeline ~149 tokens
  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 other datasets.
• get_year ~95 tokens
  Everything the record holds for one year: the headline summary and every dated entry, grouped by subject, each with its source revision.
• get_year_facts ~158 tokens
  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 now, average U.S. prices (gas, eggs, bread, milk, houses, income, minimum wage), who led the major powers, and the Billboard Hot 100 No. 1 s
• list_countries ~64 tokens
  Browse the countries that have a record of their own, largest first.
• list_subjects ~71 tokens
  Browse the subjects that have a timeline, largest record first.
• search_history ~231 tokens
  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 English Wikipedia revision and carries that revision id, so an answer built on it can cite a source that will still say the same thing next year.

Browse

• Calendars
• Music and audio
• Government and public data

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