Knock
./CommunicateNotification infrastructure API — workflows, preferences, and multi-channel delivery for agent output
MCPOpenAPIllms.txt
$ protocol support
$ payment protocols
none documented — this service is not reachable over an agent payment protocol
$ agent access
authAPI Key
onboardingFull — agent can self-onboard
tosExplicitly welcomes bots
webhooksYes
free tierYes
billingsubscription
#notifications#workflows#multi-channel
https://knock.app
// last verified 8/26/2026
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