Two scripts here:

1. auto pm members on quest finished - auto accept quest invitations
2. auto-accept-quests (with spreadsheet) and auto-accept-basic (without spreadsheet)

@1. auto pm members on quest finished - auto accept quest invitations

If a party desires automated PM when a quest is finished, one member can install a Habitica webhook,
set up the google apps script and shall set up a google sheet.

It is supposed that the user installing this script also wants to auto-accept-quests,
so the Webhook on Habitica has to be set up using the following parameters:

webhook id (optional) // no input here
url: https://script.google.com/macros/s/xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/exec // get this from deploying the script
webhook label //no input necessary
enable
questActivity
{"questStarted":false,"questFinished":true,"questInvited":true}

@2. auto-accept-quests If you just want to auto-accept quest invitations without pmailing your party members, please use this script and set
up the Habitica Webhook like this:

webhook id (optional)
url: https://script.google.com/macros/s/xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/exec
webhook label
enable
questActivity
{"questStarted":false,"questFinished":false,"questInvited":true}

Further reference:

Requirements for this script to work are:
(1) to set up a webhook-server: - script.google.com offers an easy way to do this: - open script.google.com in a web-browser. - create a new project (this will happen automatically if this is your fist google script) - paste this code snippet into the google script. - save this script as a new version. Read here: https://developers.google.com/apps-script/guides/web - deploy the script as a web-app. Read here, also: https://developers.google.com/apps-script/guides/web - ! execute the script as "yourself" - ! grant acces to everyone, even anonymous. (please evaluate for youself about security issues.) (You might want to use a bot-character for this) (Auto accept quest invitation cannot work if using a bot character) - click "accept". In the following screen: copy the url-snippet (ending with "exec"). This is your webook-url! You need this for step 2! - done - each time you edit the script, it has to be saved as a new version and the new version has to be deployes as a web-app again.

(2) to set up a Habitica-Webhook: - To set up a webhook, you can use the tool: API-Helper on github: https://github.com/PitiTheGrey/Habitica-Api-Helper - The webhook has to be set up as "questActivity" and has to have webhook-options set to the following criteria: - for noticing, when a quest has finished, webhook-option "questFinished" has to be set to true. (true has to be coded as boolean without double-quotes). - for noticing, when a quest invitation in online, the webhook-option "questInvited" has to be set to true.
- provide the url-snippet of the google-apps-script from (1) as url (ends with "exec") - click "create" - click "display" to check if options are set correctly (copy and paste id if you'd like to delete the webhook. - done

(3) Google Sheet is a means to get any response from the above scripts. The scripts were tested with a deployed sheet, that is is visible to everyone who owns the link.