To use a token in the LiveKit SIP API authorization header, you need to generate a JWT token with SIP-specific grants and include it in the Authorization header in the format

Bearer {your_generated_token}

. Here’s how you can generate the token: • API Credentials: You need your LiveKit API key and secret to sign the tokens. • SIP-Specific Grants: SIP tokens require specific grants that differ from regular video tokens. These grants include participant identity, name, and other metadata as needed. • Token Validity: SIP tokens are typically set to be valid for 24 hours. Below are examples of how to generate SIP tokens in different programming languages: • Go:

func BuildSIPToken(params SIPTokenParams) (string, error) {
    t := true
    at := auth.NewAccessToken(params.APIKey, params.APISecret).
        SetVideoGrant(&auth.VideoGrant{
            RoomJoin:             true,
            Room:                 params.RoomName,
            CanSubscribe:         &t,
            CanPublish:           &t,
            CanPublishData:       &t,
            CanUpdateOwnMetadata: &t,
        }).
        SetIdentity(params.ParticipantIdentity).
        SetName(params.ParticipantName).
        SetMetadata(params.ParticipantMetadata).
        SetValidFor(24 * time.Hour)

    return at.ToJWT()
}

• Python:

def _auth_header(self, grants: VideoGrants | None, sip: SIPGrants | None = None) -> dict[str, str]:
    tok = AccessToken(self.api_key, self.api_secret)
    if grants:
        tok.with_grants(grants)
    if sip is not None:
        tok.with_sip_grants(sip)

    token = tok.to_jwt()

    headers = {}
    headers[AUTHORIZATION] = "Bearer {}".format(token)
    return headers

• Ruby:

def auth_header(video_grant: nil, sip_grant: nil)
  headers = {}
  t = ::LiveKit::AccessToken.new(api_key: @api_key, api_secret: @api_secret)
  if video_grant != nil
    t.video_grant = video_grant
  end
  if sip_grant != nil
    t.sip_grant = sip_grant
  end
  headers["Authorization"] = "Bearer #{t.to_jwt}"
  headers
end

• Rust: Sources: sip/token.go | livekit-api/livekit/api/_service.py | lib/livekit/auth_mixin.rb | livekit-api/src/services/mod.rs | pkg/auth/auth.go