I see you guys are hungry for information, so I would like to contribute with the the list of REST endpoints I have been able to find over the past years. Some response with GET or POST and some are no longer working with the last versions but but I am sure some of you will dig deeper.
--FILTERED--
http://IP/hub/advanced/freeOSMemory
http://IP/hub/advanced/freeOSMemoryStatus
http://IP/hub/advanced/network/installethtool
http://IP/hub/advanced/network/lanautonegconfigstatus
--FILTERED--
http://IP/hub/cpuInfo
--FILTERED--
http://IP/hub/devLogs
http://IP/hub/disableStats
http://IP/hub/echoDiscovery
--FILTERED--
http://IP/hub/enableStats
http://IP/hub/events
http://IP/hub/events/:id/dataTablesJson
http://IP/hub/fileManager
http://IP/hub/fileManager/delete
http://IP/hub/fileManager/json
http://IP/hub/fileManager/upload
http://IP/hub/forceGC
http://IP/hub/forceStopJoin
--FILTERED--
http://IP/hub/lanDeviceInfo
http://IP/hub/lanDevices
http://IP/hub/lanDevicesStart
http://IP/hub/list/data
http://IP/hub/loggerAdd
http://IP/hub/loggerlist
http://IP/hub/loggerSave
http://IP/hub/memoryUsage
http://IP/hub/messages
http://IP/hub/networkTest
http://IP/hub/networkTest/ping/gateway
http://IP/hub/networkTest/ping/:ip
http://IP/hub/networkTest/speedtest
http://IP/hub/networkTest/traceroute/:ip
--FILTERED--
http://IP/hub/reboot
--FILTERED--
http://IP/hub/resetHub
http://IP/hub/resetzigbee
http://IP/hub/restart
--FILTERED--
http://IP/hub/searchIrisDevices
http://IP/hub/searchZigbeeDevices
http://IP/hub/searchZwaveDevices
--FILTERED--
http://IP/hub/shutdown
--FILTERED--
http://IP/hub/startZwaveJoin
http://IP/hub/stats
http://IP/hub/stopHub/:id
http://IP/hub/stopJoin
--FILTERED--
http://IP/hub/stopZWaveExclude
http://IP/hub/threadInfo
http://IP/hub/toggleUISecurityEnabled
http://IP/hub/toggleUISSLEnabled
http://IP/hub/tts/edit
http://IP/hub/tts/updateDefaultVoice
http://IP/hub/update
http://IP/hub/updatezigbeechannel
--FILTERED--
http://IP/hub/zigbee/getChildAndRouteInfo
http://IP/hub/zigbee/getSettings
http://IP/hub/zigbeeInfo
http://IP/hub/zigbeeLogs
http://IP/hub/zigbee/setLowRamConcentrator/:value
http://IP/hub/zigbee/setpower/:power
http://IP/hub/zigbee/setRouteTableSize/:size
http://IP/hub/zigbee/setSourceRouteTableSize/:size
http://IP/hub/zigbee/update
--FILTERED--
http://IP/hub/zwaveCancelRepair
http://IP/hub/zwave/discoverDevice
http://IP/hub/zwaveExclude
http://IP/hub/zwaveExclude/status
http://IP/hub/zwave/failedNodeCheck
http://IP/hub/zwaveInfo
http://IP/hub/zwaveInfo?statusMessage=
http://IP/hub/zwaveLearn
http://IP/hub/zwaveLogs
http://IP/hub/zwave/nodeCleanup
http://IP/hub/zwaveNodeDetail
http://IP/hub/zwaveNodeDetailGet
http://IP/hub/zwave/nodeReinitialize
http://IP/hub/zwave/nodeRemove
http://IP/hub/zwaveNodeRepair
http://IP/hub/zwave/nodeReplace
http://IP/hub/zwave/nodeReplace/info
http://IP/hub/zwave/nodeReplace/security
http://IP/hub/zwave/nodeReplace/securityCode
http://IP/hub/zwave/nodeReplace/securityKeys
http://IP/hub/zwave/nodeReplace/status
http://IP/hub/zwave/nodeReplace/stop
http://IP/hub/zwave/nodeReplace/test
http://IP/hub/zwave/nodeReplace/testDSK
http://IP/hub/zwave/nodeReplace/testGrantKeys
http://IP/hub/zwave/nodeReplace/:zwaveNodeId
http://IP/hub/zwave/pingNode
http://IP/hub/zwaveRefreshAllNodes
http://IP/hub/zwave/refreshNodeStatus
http://IP/hub/zwaveRepair
http://IP/hub/zwave/reset
http://IP/hub/zwave/securityCode
http://IP/hub/zwave/securityKeys
--FILTERED--
http://IP/hub/zwavetxpower
--FILTERED--
http://IP/hub/zwaveVersion
Filtered out the dangerous ones 
