ActivityPub

ActivityPub WebFinger Discovery API

ActivityPub implementations commonly use WebFinger (RFC 7033) for actor discovery. A GET request to /.well-known/webfinger?resource=acct:[email protected] returns a JSON Resource Descriptor (JRD) linking to the actor's canonical ActivityPub profile URL. WebFinger enables cross-instance lookup of actors using familiar user@domain addressing across the Fediverse.

GitHub

Documentation

📖
Documentation
https://www.w3.org/TR/activitypub/#security-considerations
📖
APIReference
https://webfinger.net/
📖
Documentation
https://www.rfc-editor.org/rfc/rfc7033

API entry from apis.yml

apis.yml Raw ↑ 
aid: activitypub:activitypub-webfinger-api
name: ActivityPub WebFinger Discovery API
tags:
- WebFinger
- Discovery
- Identity
- Social Networks
properties:
- url: https://www.w3.org/TR/activitypub/#security-considerations
  type: Documentation
- url: https://webfinger.net/
  type: APIReference
- url: https://www.rfc-editor.org/rfc/rfc7033
  type: Documentation
description: ActivityPub implementations commonly use WebFinger (RFC 7033) for actor discovery. A GET
  request to /.well-known/webfinger?resource=acct:[email protected] returns a JSON Resource Descriptor
  (JRD) linking to the actor's canonical ActivityPub profile URL. WebFinger enables cross-instance lookup
  of actors using familiar user@domain addressing across the Fediverse.