OpenSanctions Screening API
REST API for screening people, companies, vessels and other entities against sanctions, watchlist and PEP data. Query-by-example matching returns scored candidates with per-feature explanations; free-text search, entity fetch with graph traversal, statement-level provenance and an OpenRefine reconciliation manifest round out the surface. Authenticated with an `Authorization: ApiKey ` header and metered per logical query.
This API exposes 12 operations across 12 paths, organized into 4 resource areas, and defines 42 schemas. It is described by OpenAPI 3.1.0, at version yente 5.5.0.
Requests are made against a single base URL, https://api.opensanctions.org.
Metadata
The identity and technical contract details declared by the specification.
Paths & Operations 12
Across 12 paths, the API surfaces 12 operations — 10 GET, 2 POST. They span 4 resource areas: Matching, Data access, Reconciliation, System information. Each is listed below with its method, path, parameters, and response codes.
Endpoints for conducting a user-facing entity search or matching a local data store against the given dataset.
Endpoints for fetching data from the API, either related to individual entities, or for bulk data access in various forms.
The Reconciliation Service provides four separate endpoints that work in concert to implement the data matching API used by OpenRefine, Wikidata and several other services and uti…
Service metadata endpoints for health checking and getting the application metadata to be used in client applications.
Schemas 42
The contract defines 42 schemas that model the data the API accepts and returns. The most detailed are YenteDatasetModel (25 properties), ScoredEntityResponse (13 properties), Statement (13 properties), FreebaseManifest (11 properties). Each schema is shown below with its type and property counts.
Specification
The full machine-readable OpenAPI contract behind this narrative.
Source
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