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Open Archives

by io.github.coret
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Server Details

MCP server for Open Archives: Dutch genealogical records and historical page transcriptions.

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Status
Healthy
Uptime
100.0% over the last 24 hours
Last Tested
Transport
Streamable HTTP · MCP 2025-11-25
URL
Repository
coret/openarchieven-mcp-server
GitHub Stars
4
Server Listing
Open Archives MCP Server
ChatGPT
–
Claude
–

TDQS

B3.4/5.0

Scored across 22 tools

Disambiguation4/5

Most tools have clearly distinct purposes, e.g., browse/search/show/view transcriptions are well differentiated. The stats tools (get_event_type_stats vs get_source_type_stats vs get_record_stats) are similar in structure but each targets a unique dimension, and names make the distinction clear.

Naming Consistency3/5

All tools use snake_case and are descriptive, but they mix verb prefixes: browse, get, match, search, show, view. This is not fully consistent, though each verb aligns with the action. Some names like get_births_years_ago are less patterned than others.

Tool Count3/5

With 22 tools, the set is on the heavier side but justifiably covers diverse features: genealogical records, transcriptions, statistics, weather, census, and archives. It borders on too many, but the scope is broad enough to support them.

Completeness4/5

The domain of genealogical archives is well covered with search, show, browse, stats, and matching tools. Minor gaps exist (e.g., no explicit user comment tools beyond stats, no direct archive detail endpoint separate from list), but core workflows are supported.

Available Tools

22 tools
browse_transcriptionsBrowse TranscriptionsA
Read-only
Inspect

Browse transcriptions hierarchically

Returns a hierarchical browse of available page transcriptions. Mirrors /transcripties/lijst/. Three modes, depending on the supplied filters: * No filter — top-level list of source archives ordered by total transcription count (descending). * archive_code — list of all archive numbers (archieftoegangen) within that archive, ordered by archive number. * archive_code + archive_number — list of all inventories within that archive number, ordered by inventory number. The order of items is fixed and cannot be overridden. Results are always returned in full (no paging).

Inputs: lang, archive_code, archive_number.

get_archivesList ArchivesA
Read-only
Inspect

List all archives with statistics

Returns an array of all participating archives including their archive code (used in other API calls), name, homepage URL, Twitter handle, ISIL code and search URL on Open Archives. Note: version 1.1 adds ISIL codes and removes defunct ArchiefWiki links.

Inputs: no named parameters.

get_birthsFind BirthsC
Read-only
Inspect

Finds birth records

Inputs: name (required), start, eventyear, eventplace, +2 more.

get_births_years_agoBirths N Years AgoA
Read-only
Inspect

List births that occurred a specified number of years ago

Returns a list of birth records for people born exactly the specified number of years ago from today. Note: version 1.1 uses archive_code instead of archive and includes the archive name and record URL.

Inputs: years (required), number_show.

get_breakdownBreakdown StatsA
Read-only
Inspect

Cross-tabulation aggregation grouped by one dimension

Returns record counts filtered by any combination of archive, source type, event type, event place and year range, grouped by ONE chosen dimension (archive, sourcetype, eventtype, place or year). Use this endpoint to answer questions such as "how many Bidprentjes per archive?" or "how many marriages per year in Amsterdam?". The response includes the total filtered record count, the total number of distinct groups (capped at 750) and the top-N groups according to the chosen sort.

Inputs: group_by (required), lang, sort, year_end, +7 more.

get_census_dataCensus Data (1795–1899)A
Read-only
Inspect

Dutch census data for a place and year

Retrieves census data for a Dutch place or municipality for the census year nearest to the specified year. Available census years: 1795, 1830, 1840, 1849, 1859, 1869, 1879, 1889, 1899. Data sources: Volkstellingen.nl (DANS) and Gemeentegeschiedenis.nl. Either place or gg_uri must be provided.

Inputs: year (required), place, gg_uri, province, +1 more.

get_comment_statsComment StatsA
Read-only
Inspect

Comment count statistics

Returns the total number of validated comments made on records. When no archive_code is provided, the global total is returned. When an archive code is provided, the count for that archive is returned. Note: version 1.1 uses archive_code instead of archive.

Inputs: archive_code.

get_deathsFind DeathsC
Read-only
Inspect

Finds death records

Inputs: name (required), start, eventyear, eventplace, +1 more.

get_event_type_statsEvent-Type StatsA
Read-only
Inspect

Record count statistics per event type

Returns statistics about event types. Without an archive_code all event types across the entire dataset are returned with total counts. With an archive_code, only event types for that archive are returned. Note: version 1.1 uses archive_code instead of archive.

Inputs: archive_code.

get_family_name_statsFamily-Name StatsB
Read-only
Inspect

Family name frequency statistics

Returns the number of times family names appear in events for the selected source types, place and period. Results are ordered by frequency. Open Archives uses this endpoint to power its family name frequency visualisation.

Inputs: lang, eventtype, eventplace, number_show, +2 more.

get_first_name_statsFirst-Name StatsA
Read-only
Inspect

First name frequency statistics for a given place and year

Returns the top-X list of first names in the specified place and year. When a person has multiple forenames, only the first is counted. Currently only Amsterdam is available as a place.

Inputs: eventyear (required), eventplace (required), number_show.

get_historical_weatherHistorical WeatherA
Read-only
Inspect

Historical weather measurements for a date and location

Returns historical weather measurements from the nearest Dutch weather station for the specified date and coordinates. Data sources are the Royal Netherlands Meteorological Institute (KNMI): measurements 1701–1905 and 1901–2014. Note: this endpoint exposes several types of historical datasets, so measurement types and units can vary between records.

Inputs: date (required), latitude (required), longitude (required), lang.

get_marriagesFind MarriagesC
Read-only
Inspect

Finds marriage records of couples (bride or groom)

Inputs: name1 (required), name2 (required), start, eventyear, +2 more.

get_profession_statsProfession StatsA
Read-only
Inspect

Profession frequency statistics

Returns the number of times professions appear in records for the selected period and place. Results are ordered by frequency. Open Archives uses this endpoint to power its profession frequency visualisation.

Inputs: lang, eventplace, number_show, eventyearend, +1 more.

get_record_statsRecord StatsA
Read-only
Inspect

Record count statistics per archive

Returns record count statistics. When no archive is specified, all archives are listed with their total number of records. When an archive code is specified, the source types available for that archive are returned with their individual record counts. Note: version 1.1 uses archive_code instead of archive.

Inputs: archive_code.

get_source_type_statsSource-Type StatsA
Read-only
Inspect

Record count statistics per source type

Returns statistics about source types. Without an archive_code all source types across the entire dataset are returned with total record counts. With an archive_code, only source types for that archive are returned. Note: version 1.1 uses archive_code instead of archive.

Inputs: archive_code.

match_recordMatch RecordA
Read-only
Inspect

Match a person to birth and death records

Searches the genealogical dataset by exact name and birth year and returns the Open Archives URIs of birth records, death records and registrations in which the person is mentioned.

Inputs: name (required), birthyear (required), lang.

search_recordsSearch RecordsB
Read-only
Inspect

Search genealogical records

Searches the genealogical dataset and returns found persons and records. Supports filtering by archive, source type, event place, birth place, relation type and country. Results are pageable and sortable. Note: version 1.1 uses archive_code instead of archive.

Inputs: name (required), lang, sort, start, +8 more.

search_transcriptionsSearch TranscriptionsA
Read-only
Inspect

Full-text search across page transcriptions

Performs a full-text search across the page transcriptions of historical documents indexed by Open Archives. Mirrors the search UI at /transcripties/zoek.php. Results are ordered by Elasticsearch relevance (the order is fixed and cannot be overridden) and are returned paginated. Each match includes a source citation, page identifier and up to five highlighted text fragments. The set of facets returned depends on the supplied filters.

Inputs: q (required), lang, start, year_end, +5 more.

show_recordShow RecordA
Read-only
Inspect

Show a single genealogical record

Returns one specific genealogical record in JSON format (UTF-8). The response conforms to the Archive 2 All (A2A) model. Also available as XML, GEDCOM, Turtle (TTL) and N-Triples (NT) by changing the file extension in the URL. Note: version 1.1 features improved JSON/XML output and adds N-Triples and Turtle formats.

Inputs: archive (required), identifier (required), lang.

show_transcriptionShow TranscriptionA
Read-only
Inspect

Retrieve a single transcription

Returns the full transcript of a single page along with its source citation. Mirrors /transcripties/toon/<id>. AI-generated summaries are deliberately not returned by this endpoint.

Inputs: id (required), lang.

view_transcriptionView Transcription (IIIF deep-zoom)A
Read-only
Inspect

Open one or more transcribed document pages in an interactive deep-zoom viewer with the transcription text alongside. Pass page identifiers returned by search_transcriptions / browse_transcriptions (form , e.g. NL-SdmGA_1504889_11). Optionally highlight a term in the transcript. Hosts without MCP Apps support receive a text summary plus inline preview images.

Inputs: ids (required), highlight_term.

Tool Schema Changelog

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