ActivityPub Discovery API
WebFinger and NodeInfo discovery endpoints
This API exposes 3 operations across 3 paths, and defines 4 schemas. It is described by OpenAPI 3.1.0, at version 1.0.0.
Requests are made against a single base URL, https://{domain}.
Metadata
The identity and technical contract details declared by the specification.
Authentication & Security 2
ActivityPub Discovery API declares
2 security schemes
for authenticating requests.
It accepts HTTP bearer tokens (BearerAuth).
An API key is passed in the header as Signature (HTTPSignature).
BearerAuth— OAuth 2.0 bearer token for client-to-server authenticationHTTPSignature— HTTP Signatures (draft-cavage-http-signatures) for server-to-server authentication. The Signature header contains keyId, algorithm, headers, and signature fiel…
Paths & Operations 3
Across 3 paths, the API surfaces 3 operations — 3 GET. Each is listed below with its method, path, parameters, and response codes.
WebFinger and NodeInfo discovery endpoints
Schemas 4
The contract defines 4 schemas that model the data the API accepts and returns. The most detailed are NodeInfo (5 properties), WebFingerResponse (4 properties), Error (2 properties), NodeInfoLinks (1 property). Each schema is shown below with its type and property counts.
Specification
The full machine-readable OpenAPI contract behind this narrative.