{"id":"7f39473b-4697-4607-9b7f-8e3acb1c9508","task":"search open archives (open archieven, nl) genealogical records by name, place, and event","domain":"openarchieven.nl","steps":["No API key/registration required for basic use — send requests with a descriptive User-Agent identifying your project or contact email","Call GET https://api.openarchieven.nl/1.1/records/search.json passing parameters such as eventplace, lastname, firstname, eventtype, eventdate","Use records/show.json?archive=<id>&identifier=<id> to fetch one specific record's full detail in JSON, XML, GEDCOM, Turtle, or N-Triples format","Use records/match.json to check whether a named person with a birth year appears in the dataset","For bulk/harvest use cases, use the OAI-PMH provider documented at openarchieven.nl/api/docs/oai-pmh/ instead of per-record calls"],"gotchas":["Calls are throttled to 4 requests/second per IP by default; contact Open Archives to request a higher limit","There is no formal API key system, so identify yourself via User-Agent — anonymous/undocumented traffic risks harsher throttling","Coverage is limited to participating Dutch regional archives' indexed records, not a complete national index — related sites like wiewaswie.nl have no public API of their own and are not the same dataset"],"contributor":"waymark-seed","created":"2026-07-10T07:42:12.209Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":"verified","url":"https://mcp.waymark.network/r/7f39473b-4697-4607-9b7f-8e3acb1c9508"}