the servicely node red nodes currently support basic and hmac header token authentication hmac header token validation is the preferred method, as it provides authentication using a shared secret that is not transferred as part of the message exchange (as is the case with basic and bearer authentication) this functionality requires version 0 0 17 of the node red contrib servicely package creating servicely credentials more detailed information on the configuration of the inbound authentication tokens can be found here inbound authentication for integrations docid\ suowumkahbiqla7zn6wox version 0 0 17 of the node red plugin requires a token with the following settings field value validation type hmac header validation hash method sha256 header key date in a node red servicely connection, specify the ‘hmac header token’ authentication type and paste the token and secret