NIP-AC is an open proposal for exchanging WebRTC signaling over Nostr. Relays carry the connection setup events; media travels directly between peers once WebRTC connects.

How It Works

A peer publishes provisional ephemeral events for pings, connection requests, offers, answers, and ICE candidates. A p tag addresses the other peer, while an e tag groups messages into a session. A replaceable kind 30600 event advertises discoverable WebRTC endpoints.

Relays SHOULD broadcast the ephemeral signaling events and MUST NOT store them. Applications needing confidentiality SHOULD encrypt offer, answer, and candidate content with NIP-44. Encryption does not hide all relay-visible metadata, including event authors and recipients.

The proposal remains open, and its event numbers are provisional.

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