Open Archives
MCP server for Open Archives: Dutch genealogical records and historical page transcriptions.
| Endpoint | https://mcp.openarchieven.nl (streamable-http) |
|---|---|
| Registry version | 1.1.1 |
| Now | 22 tools · grade C (65) · pin ts_f8aef7c62ffb90b80aeb9684a84a25de · protocol 2025-06-18 |
| First / last listed | 2026-10-27 06:11 UTC / 2026-10-27 06:11 UTC |
| Grade over time | 2026-10-27: C (65), 22 tools |
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Tools: search_records show_record match_record get_births_years_ago get_births get_deaths get_marriages get_archives get_record_stats get_source_type_stats get_event_type_stats get_comment_stats get_family_name_stats get_first_name_stats get_profession_stats get_breakdown get_historical_weather get_census_data search_transcriptions browse_transcriptions show_transcription view_transcription
search_records | 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`. params: name*, archive_code, not_archive, number_show, sourcetype, eventplace, birthplace, relationtype, country_code, sort, start, lang |
show_record | 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. params: archive*, identifier*, lang |
match_record | 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. params: name*, birthyear*, lang |
get_births_years_ago | 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. params: years*, number_show |
get_births | Finds birth records params: name*, eventyear, eventplace, eventprovince, number_show, start |
get_deaths | Finds death records params: name*, eventyear, eventplace, number_show, start |
get_marriages | Finds marriage records of couples (bride or groom) params: name1*, name2*, eventyear, eventplace, number_show, start |
get_archives | 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. params: none |
get_record_stats | 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`. params: archive_code |
get_source_type_stats | 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`. params: archive_code |
get_event_type_stats | 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`. params: archive_code |
get_comment_stats | 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`. params: archive_code |
get_family_name_stats | 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. params: eventplace, eventyearstart, eventyearend, eventtype, number_show, lang |
get_first_name_stats | 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. params: eventplace*, eventyear*, number_show |
get_profession_stats | 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. params: eventplace, eventyearstart, eventyearend, number_show, lang |
get_breakdown | 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 includ params: group_by*, archive_code, sourcetype, eventtype, eventplace, year_start, year_end, min_count, number_show, sort, lang |
get_historical_weather | 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 params: date*, longitude*, latitude*, lang |
get_census_data | 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. params: year*, place, province, gg_uri, richness |
search_transcriptions | 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 hig params: q*, archive_code, archive_number, inventory_number, year_start, year_end, number_show, start, lang |
browse_transcriptions | 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. * `a params: archive_code, archive_number, lang |
show_transcription | 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. params: id*, lang |
view_transcription | 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 <ISIL>_<archive>_<page>, 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. params: ids*, highlight_term |
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