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OpenSanctions Matching API

Endpoints for conducting a user-facing entity search or matching a local data store against the given dataset.

OpenSanctions Matching API is one of 4 APIs that OpenSanctions publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include Matching. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, and an API reference.

This API exposes 2 operations across 2 paths, and defines 16 schemas. It is described by OpenAPI 3.2.0, at version yente 5.5.0.

Requests are made against the base URL https://api.opensanctions.org.

2 operations 2 paths 16 schemas 1 GET1 POST

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.2.0
API Version
yente 5.5.0
Base URL
https://api.opensanctions.org
Terms of Service
Resource Areas
1

Paths & Operations 2

Across 2 paths, the API surfaces 2 operations — 1 GET, 1 POST. Each is listed below with its method, path, parameters, and response codes.

Matching 2

Endpoints for conducting a user-facing entity search or matching a local data store against the given dataset.

POST
/match/{dataset}
Query by example matcher
match_match__dataset__post 11 params body → 200400500422
GET
/search/{dataset}
Simple entity search
search_search__dataset__get 19 params → 200400500422

Schemas 16

The contract defines 16 schemas that model the data the API accepts and returns. The most detailed are ScoredEntityResponse (13 properties), EntityResponse (10 properties), ValidationError (5 properties), SearchResponse (5 properties). Each schema is shown below with its type and property counts.

SearchFacet
object
2 properties 2 required
EntityResponse
object
10 properties 4 required
ScoredEntityResponse
object
13 properties 6 required
TotalSpec
object
2 properties 1 required
SearchResponse
object
5 properties 4 required
Operator
string
ErrorResponse
object
1 property 1 required
EntityMatchResponse
object
2 properties 2 required
EntityMatchQuery
object
3 properties 1 required
ValidationError
object
5 properties 3 required
EntityExample
object
3 properties 2 required
EntityMatches
object
4 properties 3 required
Facet
string
HTTPValidationError
object
1 property
SearchFacetItem
object
3 properties 2 required
FeatureResult
object
A explained score for a particular feature result.
4 properties 2 required

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

opensanctions-matching-api-openapi.yml Raw ↑

Other APIs OpenSanctions publishes across the network.

OpenSanctions Data access API
OpenSanctions Reconciliation API
OpenSanctions System information API
Where this information came from

This is an independent, third-party profile of OpenSanctions Matching API, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.

The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.

Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.

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