slashyear — sourced history
Description
Sourced history: 85,753 dated events, each quoted from a citable Wikipedia revision id.
What our measurements say
slashyear — sourced history is a remote MCP server published at slashyear.com. It has been probed 6 times since 9/12/2026. It answered in 6 of them (100.0%), a near-uninterrupted record. Median response time is 667 ms, a delay an agent will notice. It offers a narrow, focused set of 7 tools. On the protocol side it still runs 2025-11-25 and has not moved to the newer spec.
Agent readability score
Can an LLM agent pick the right tool here — names, descriptions and parameter clarity are assessed.
Agent readability score
Strengths
- Tool names are descriptive and indicate purpose clearly
- Descriptions explain when to use each tool effectively
- Parameters are mostly well-defined with required/optional notes
Weaknesses
- 'starts_with' parameter lacks clear definition in list_subjects
- Potential overlap between search_history and get_year tools
- Some descriptions include technical details that may not be user-friendly
search_history— 'from_year' and 'to_year' parameters could benefit from explicit range constraintsget_timeline— Wikidata ID reference in description may be unclear to non-expertslist_subjects— 'starts_with' parameter lacks explicit definition of what it filters
Verdict
Event narrative
Risk: low
Advice
Schema compliance
tools/list structure, inputSchema validity, and a functional smoke test — the components of the 0-100 score.
- tools/list schema valid
- inputSchema is valid JSON Schema
- Smoke test not run this round
- Cold-start: cold 46ms → warm 45ms (penalty 1ms)
Tools
Tools the server advertised in the latest measurement — measured, not catalog-claimed.
search_historyFull-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. Use this whenever you need a dated fact.
querystringrequiredfrom_yearintegerto_yearintegerlimitinteger
get_yearEverything the record holds for one year: the headline summary and every dated entry, grouped by subject, each with its source revision.
yearintegerrequired
get_dayOne calendar day across every recorded year — what happened on 4 July in all of them. This aggregate exists in no single encyclopedia article.
datestringrequired
get_timelineOne 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.
subjectstringrequiredfrom_yearintegerto_yearintegerlimitinteger
get_countryOne 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.
countrystringrequiredfrom_yearintegerto_yearintegerlimitinteger
list_countriesBrowse the countries that have a record of their own, largest first.
limitinteger
list_subjectsBrowse the subjects that have a timeline, largest record first.
starts_withstringlimitinteger
Availability history
Event log
Derived by comparing consecutive probes — changes in era, protocol version, build and reachability.
- Added to watch — era: Legacy
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