OpenMercantil Legal API
Spanish mercantile-law layer (derecho mercantil): legislation corpus + article texts + act→norm bridge. Distributes the consolidated BOE legal corpus structured by OpenMercantil so LLMs and agents can cite it as a source. License: consolidated text from the BOE, reused under Ley 37/2007 (re-use of public sector information); the official version is always boe.es. Informational only — NOT legal advice. Court judgments are NOT exposed here (CENDOJ is kept as a citation-index only, per CGPJ…
OpenMercantil Legal API is one of 18 APIs that OpenMercantil publishes on the APIs.io network, described by a machine-readable OpenAPI specification.
Tagged areas include Legal. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, and an API reference.
This API exposes 7 operations across 7 paths, and defines 19 schemas. It is described by OpenAPI 3.1.0, at version 1.9.3.
Requests are made against a single base URL, https://openmercantil.es.
Metadata
The identity and technical contract details declared by the specification.
Authentication & Security 3
OpenMercantil Legal API declares
3 security schemes
for authenticating requests.
An API key is passed in the header as X-API-Key (apiKey).
It accepts HTTP bearer tokens (opaque omk_* credential) (bearerAuth).
An API key is passed in the cookie as ob_sess (cookieAuth).
apiKey— Optional opaque omk API credential for public GETs. Anonymous access remains valid; a credential with the operation's x-api-credential-scope (or public:read) s…bearerAuth— Optional Authorization: Bearer transport for the same opaque omk API credential accepted by X-API-Key. It is not a JWT or OAuth access token.cookieAuth— Browser session cookie set after login at /mi-cuenta/login. Mutations also require X-CSRF-Token header (obtain via GET /api/v1/user/me).
Paths & Operations 7
Across 7 paths, the API surfaces 7 operations — 6 GET, 1 POST. Each is listed below with its method, path, parameters, and response codes.
Spanish mercantile-law layer (derecho mercantil): legislation corpus + article texts + act→norm bridge. Distributes the consolidated BOE legal corpus structured by OpenMercantil s…
Schemas 19
The contract defines 19 schemas that model the data the API accepts and returns. The most detailed are ErrorResponse (35 properties), LegalReportAxis (15 properties), LegalNormFull (14 properties), LegalNormSummary (8 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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Other APIs OpenMercantil publishes across the network.
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