macadress.com API
REST/JSON API for single and batch MAC/OUI lookups, vendor directory search, and health checks. Requires a free API key via Authorization Bearer or api_key query/body.Live API at api.macadress.com: GET /v1/mac/:mac and POST /v1/mac/batch, answering 401 with an explicit "missing API key" message. Operated by ApisOS FZE. The declared apis.json 404s, but an OpenAPI 3.1.0 IS published -- at macadress.com/static/openapi.yaml?v=ceee2d51, a versioned asset path that probing the conventional locations never finds. llms.txt is served and is where the real endpoints and the MCP subdomain are named. Verified 2026-08-28.
This API exposes 4 operations across 4 paths, and defines 7 schemas. It is described by OpenAPI 3.1.0, at version 1.0.
Requests are made against a single base URL, https://api.macadress.com.
Metadata
The identity and technical contract details declared by the specification.
Authentication & Security 2
macadress.com API declares
2 security schemes
for authenticating requests.
It accepts HTTP bearer tokens (apiKeyHeader).
An API key is passed in the query as api_key (apiKeyQuery).
By default, every request must be authenticated.
apiKeyHeader— Authorization: Bearer mk...
Paths & Operations 4
Across 4 paths, the API surfaces 4 operations — 3 GET, 1 POST. Each is listed below with its method, path, parameters, and response codes.
Schemas 7
The contract defines 7 schemas that model the data the API accepts and returns. The most detailed are Result (36 properties), VendorBlock (9 properties), ParseErrorBody (3 properties), VendorSearchResult (2 properties). Each schema is shown below with its type and property counts.
Specification
The full machine-readable OpenAPI contract behind this narrative.
Source
This is an independent, third-party profile of macadress.com 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.
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