Connectors · Email & messaging
Knock MCP server for AI agents.
actionlake is an MCP gateway: one remote MCP server that connects Claude and other MCP clients to Knock and the rest of your systems. It gives your agent 118 Knock actions (39 reads, 58 writes and 21 that wait for a confirmation) and holds the Knock credential itself, so the agent never does. It paces Knock's limits and records every call.
100,000 free calls a month. No card, no email, no password: press Start a free sandbox on the next screen and keep the key it shows you.
claude mcp add --transport http actionlake https://connect.actionlake.com/mcpdo { action: "knock.users.list_users", intent: "check which Knock account is connected"}# List users · read · 1 upstream call- 118actionsin one signed file
- 39readlook, never change
- 58writecreate and update
- 21wait for a yesdestructive, confirmed first
Set up
Connect Knock in three steps.
- 01
Add actionlake to Claude.
Run the command once in Claude Code; its consent page can create a free sandbox: 100,000 calls a month, no card. In the Claude app, add a custom connector with the URL below and paste your key on the consent page. Creating a new sandbox from the Claude app is not yet tested by us.
https://connect.actionlake.com/mcp - 02
Connect Knock.
Bearer token. No consent screen: your agent can connect it for you, but the key then passes through your chat. To keep it out of the model's context, paste it in the console instead. actionlake stores what you paste write-only, sealed under your tenant's key.
secret_keyKnock secret API key (sk_...)
account { op: "connections.requirements", service: "knock" } # free: exactly what to paste, and what is found for you - 03
Make the first call. Check before a write.
Ask in plain words; Claude picks the action. Before anything changes,
checkvalidates the call and prices it, for free.do { action: "knock.users.list_users" }# list users · read · 1 upstream callcheck { action: "knock.schedules.create_schedules", input: { … } }# free: inputs, permissions, cost and confirmations, nothing sent
Knock at a glance
- Sign-in
- Bearer token. No consent screen: your agent can connect it for you, but the key then passes through your chat. To keep it out of the model's context, paste it in the console instead.
- You provide
secret_key- Limits we pace to
- 60 calls a second, per connection
- API covered
- Knock API v1 (OpenAPI 3, api.knock.app)
api.knock.app - Built from
- Knock's documentation, read 23 October 2026docs.knock.appdocs.knock.app
- Service file
- Version 1.0.0, signed (Ed25519)
- Cached reads
- 29 of 39 reads, for up to 5 minutes; a write clears what it affects
- Shared entities
- 2, so ask can line Knock up with your other systems
- Data
- Processed and stored in Sydney, Australia. No US region yet
Capabilities
What an AI agent can do in Knock.
118 actions in 12 areas. Every one carries its effect, so a key can allow the reads and hold the rest.
- 39readlook, never change
- 58writecreate and update
- 21destructivewait for a confirmation
Users
3712 read · 20 write · 5 destructive
List users · Get user · Delete user · Merge users
Objects
268 read · 12 write · 6 destructive
Add subscriptions · Bulk add subscriptions · List messages · List preference sets
Messages
257 read · 18 write · 0 destructive
List messages · List delivery logs · Get message · Batch get message contents
Tenants
62 read · 2 write · 2 destructive
List tenants · Get a tenant · Delete a tenant · Bulk delete tenants
Schedules
51 read · 3 write · 1 destructive
List schedules · Create schedules · Update schedules · Delete schedules
MS teams
43 read · 0 write · 1 destructive
Microsoft Teams: List channels · Microsoft Teams: List teams · Microsoft Teams: Check auth · Microsoft Teams: Revoke access
Workflows
40 read · 0 write · 4 destructive
Cancel workflow · Trigger workflow · Trigger workflow · Cancel workflow
Audiences
31 read · 1 write · 1 destructive
List members · Add members · Remove members
4 more areas · 8 actions
- Slack 3
- Integrations 2
- Workflow recipient runs 2
- Bulk operations 1
Top actions
The Knock API, shaped for agents.
The ids your agent types, what each does, and the one name it shares with other systems. 20 of Knock's 20 action names are shared with at least one other connector, so an agent learns them once.
| Action | What it does | Effect | Same name in |
|---|---|---|---|
knock.users.list_usersList users | List users. | read | identity.user.list474 connectors |
knock.users.get_userGet user | Get user. | read | identity.user.get399 connectors |
knock.messages.list_messagesList messages | List messages. | read | comm.message.list42 connectors |
knock.audiences.list_audience_membersList members | List members. | read | comm.audience_member.list23 connectors |
knock.messages.list_message_delivery_logsList delivery logs | List delivery logs. | read | comm.delivery_event.list16 connectors |
knock.messages.get_messageGet message | Get message. | read | comm.message.get33 connectors |
knock.schedules.list_schedulesList schedules | List schedules. | read | automation.schedule.list18 connectors |
knock.tenants.list_tenantsList tenants | List tenants. | read | platform.tenant.list70 connectors |
knock.schedules.create_schedulesCreate schedules | Create schedules. | write | automation.schedule.create16 connectors |
knock.audiences.add_audience_membersAdd members | Add members. | write | comm.audience_member.add18 connectors |
knock.schedules.update_schedulesUpdate schedules | Update schedules. | write | automation.schedule.update16 connectors |
knock.workflows.cancel_workflowCancel workflow | Cancel workflow. | destructive | automation.workflow_run.cancel16 connectors |
Try it
Prompts to paste into Claude.
Each one names the Knock actions it will call, so you know what it reads and what it changes before you send it.
- Readread
Who has access in Knock? List every user and their role.
calls
knock.users.list_users - Writewrite
Create schedules in Knock. Show me exactly what you will send before you save it.
calls
knock.schedules.create_schedules
Governance for Knock
Destructive actions wait for a yes.
21 Knock actions are destructive. These are all of them:
- Delete user
knock.users.delete_user - Remove members
knock.audiences.remove_audience_members - Delete schedules
knock.schedules.delete_schedules - Merge users
knock.users.merge_user - Cancel workflow
knock.workflows.cancel_workflow - Delete a tenant
knock.tenants.delete_tenant - Slack: Revoke access
knock.slack.revoke_access - Delete an object
knock.objects.delete_object - Microsoft Teams: Revoke access
knock.ms_teams.revoke_access - Bulk delete users
knock.users.bulk_delete_users - Trigger workflow
knock.workflows.trigger_workflow - Bulk delete objects
knock.objects.bulk_delete_objects - Bulk delete tenants
knock.tenants.bulk_delete_tenants - Unset channel data
knock.users.unset_user_channel_data - Delete user preference set
knock.users.delete_user_preference_set - Bulk delete subscriptions
knock.objects.bulk_delete_subscriptions - Unset channel data
knock.objects.unset_object_channel_data - Trigger workflow
knock.workflows.trigger_workflow_by_name - Delete object preference set
knock.objects.delete_object_preference_set - Delete subscriptions
knock.objects.delete_subscriptions_for_object - Cancel workflow
knock.workflows.cancel_workflow_by_name
A destructive action runs only with confirm: true. Under the human policy the agent cannot confirm for itself: the run stops until a named person approves, in the console or from a signed link in an email. The cap on a key is refused before the call is sent, never after.
Delete user?
intent: the user asked me to delete user
account { op: "keys.create", name: "knock-agent", allowed_actions: ["knock.*"], cap_calls: 2000, confirm_policy: "human_for_writes", approval_rules: [ { match: "knock.users.delete_user", approver: "[email protected]" }, { match: "knock.audiences.remove_audience_members", approver: "[email protected]" }, { match: "knock.schedules.delete_schedules", approver: "[email protected]" } ]}Cost
What Knock costs on actionlake.
Every Knock action is one upstream call, the only thing actionlake bills. Searching, check, cost, account and any call Knock refused with 401, 403, 429 or a 5xx are free. Paid plans start at US$49 a month for 250,000 calls, with overage from US$0.30 down to US$0.18 per 1,000.
- 1upstream call per actionall 118 Knock actions
- 118actions pageeach page of a long list is one call
- 29reads can be cacheda cache hit costs nothing
- 100,000calls a month, freepaid plans from US$49 a month for 250,000
Action index
Every Knock action.
118 actions by area: the id your agent calls, what it does, and its effect.
Users37
knock.users.bulk_delete_usersBulk delete usersdestructiveknock.users.bulk_identify_usersBulk identify userswriteknock.users.bulk_set_user_preferencesBulk set preferenceswriteknock.users.delete_userDelete userdestructiveknock.users.delete_user_preference_setDelete user preference setdestructiveknock.users.generate_preference_center_signed_urlCreate preference center signed URLwriteknock.users.get_preference_center_configGet preference center configreadknock.users.get_userGet userreadknock.users.get_user_channel_dataGet channel datareadknock.users.get_user_in_app_feed_settingsGet feed settingsreadknock.users.get_user_preference_setGet user preference setreadknock.users.identify_userIdentify userwriteknock.users.list_guidesList guidesreadknock.users.list_messages_for_userList user messagesreadknock.users.list_subscriptions_for_userList user subscriptionsreadknock.users.list_user_in_app_feed_itemsList feed itemsreadknock.users.list_user_preference_setsList user preference setsreadknock.users.list_user_schedulesList user schedulesreadknock.users.list_usersList usersreadknock.users.mark_guide_archivedMark guide as archivedwriteknock.users.mark_guide_interactedMark guide as interactedwriteknock.users.mark_guide_message_archivedMark guide as archivedwriteknock.users.mark_guide_message_interactedMark guide as interactedwriteknock.users.mark_guide_message_seenMark guide as seenwriteknock.users.mark_guide_seenMark guide as seenwriteknock.users.mark_guide_unarchivedMark guide as unarchivedwriteknock.users.merge_userMerge usersdestructiveknock.users.reset_guide_engagementReset guide engagementwriteknock.users.set_user_channel_dataSet channel datawriteknock.users.unset_user_channel_dataUnset channel datadestructiveknock.users.update_user_preference_categoriesUpdate categories in user preference setwriteknock.users.update_user_preference_categoryUpdate category in user preference setwriteknock.users.update_user_preference_channel_typeUpdate channel type in preference setwriteknock.users.update_user_preference_channel_typesUpdate channel types in preference setwriteknock.users.update_user_preference_setUpdate user preference setwriteknock.users.update_user_preference_workflowUpdate workflow in user preference setwriteknock.users.update_user_preference_workflowsUpdate workflows in preference setwrite
Objects26
knock.objects.add_subscriptions_for_objectAdd subscriptionswriteknock.objects.bulk_add_subscriptionsBulk add subscriptionswriteknock.objects.bulk_delete_objectsBulk delete objectsdestructiveknock.objects.bulk_delete_subscriptionsBulk delete subscriptionsdestructiveknock.objects.bulk_set_objectsBulk set objectswriteknock.objects.delete_objectDelete an objectdestructiveknock.objects.delete_object_preference_setDelete object preference setdestructiveknock.objects.delete_subscriptions_for_objectDelete subscriptionsdestructiveknock.objects.get_objectGet an objectreadknock.objects.get_object_channel_dataGet channel datareadknock.objects.get_object_preference_setGet object preference setreadknock.objects.list_messages_for_objectList messagesreadknock.objects.list_object_preference_setsList preference setsreadknock.objects.list_object_schedulesList object schedulesreadknock.objects.list_objectsList objects in a collectionreadknock.objects.list_subscriptions_for_objectList subscriptionsreadknock.objects.set_objectSet an objectwriteknock.objects.set_object_channel_dataSet channel datawriteknock.objects.unset_object_channel_dataUnset channel datadestructiveknock.objects.update_object_preference_categoriesUpdate categories in preference setwriteknock.objects.update_object_preference_categoryUpdate a category preferencewriteknock.objects.update_object_preference_channel_typeUpdate a channel type preferencewriteknock.objects.update_object_preference_channel_typesUpdate channel types in preference setwriteknock.objects.update_object_preference_setUpdate a preference setwriteknock.objects.update_object_preference_workflowUpdate a workflow preferencewriteknock.objects.update_object_preference_workflowsUpdate workflows in preference setwrite
Messages25
knock.messages.archive_messageArchive messagewriteknock.messages.batch_get_message_contentsBatch get message contentsreadknock.messages.batch_mark_messages_as_archivedMark messages as archivedwriteknock.messages.batch_mark_messages_as_interactedMark messages as interactedwriteknock.messages.batch_mark_messages_as_readMark messages as readwriteknock.messages.batch_mark_messages_as_seenMark messages as seenwriteknock.messages.batch_mark_messages_as_unarchivedMark messages as unarchivedwriteknock.messages.batch_mark_messages_as_unreadMark messages as unreadwriteknock.messages.batch_mark_messages_as_unseenMark messages as unseenwriteknock.messages.bulk_update_messages_for_channelBulk update message statuses for channelwriteknock.messages.get_messageGet messagereadknock.messages.get_message_contentsGet message contentreadknock.messages.list_message_activitiesList activitiesreadknock.messages.list_message_delivery_logsList delivery logsreadknock.messages.list_message_eventsList eventsreadknock.messages.list_messagesList messagesreadknock.messages.mark_message_interactedMark message as interactedwriteknock.messages.mark_message_readMark message as readwriteknock.messages.mark_message_seenMark message as seenwriteknock.messages.mark_message_unreadMark message as unreadwriteknock.messages.mark_message_unread_altMark message as unreadwriteknock.messages.mark_message_unseenMark message as unseenwriteknock.messages.mark_message_unseen_altMark message as unseenwriteknock.messages.unarchive_messageUnarchive messagewriteknock.messages.unarchive_message_altUnarchive messagewrite
Tenants6
knock.tenants.bulk_delete_tenantsBulk delete tenantsdestructiveknock.tenants.bulk_set_tenantsBulk set tenantswriteknock.tenants.delete_tenantDelete a tenantdestructiveknock.tenants.get_tenantGet a tenantreadknock.tenants.list_tenantsList tenantsreadknock.tenants.set_tenantSet a tenantwrite
Schedules5
knock.schedules.bulk_create_schedulesCreate schedules in bulkwriteknock.schedules.create_schedulesCreate scheduleswriteknock.schedules.delete_schedulesDelete schedulesdestructiveknock.schedules.list_schedulesList schedulesreadknock.schedules.update_schedulesUpdate scheduleswrite
MS teams4
knock.ms_teams.auth_checkMicrosoft Teams: Check authreadknock.ms_teams.list_channelsMicrosoft Teams: List channelsreadknock.ms_teams.list_teamsMicrosoft Teams: List teamsreadknock.ms_teams.revoke_accessMicrosoft Teams: Revoke accessdestructive
Workflows4
knock.workflows.cancel_workflowCancel workflowdestructiveknock.workflows.cancel_workflow_by_nameCancel workflowdestructiveknock.workflows.trigger_workflowTrigger workflowdestructiveknock.workflows.trigger_workflow_by_nameTrigger workflowdestructive
Audiences3
knock.audiences.add_audience_membersAdd memberswriteknock.audiences.list_audience_membersList membersreadknock.audiences.remove_audience_membersRemove membersdestructive
Slack3
knock.slack.auth_checkSlack: Check authreadknock.slack.list_channelsSlack: List channelsreadknock.slack.revoke_accessSlack: Revoke accessdestructive
Integrations2
knock.integrations.census_rpcProcess a Census RPC requestwriteknock.integrations.hightouch_rpcProcess a Hightouch RPC requestwrite
Workflow recipient runs2
knock.workflow_recipient_runs.get_workflow_recipient_runGet a workflow recipient runreadknock.workflow_recipient_runs.list_workflow_recipient_runsList workflow recipient runsread
Bulk operations1
knock.bulk_operations.get_bulk_operationGet bulk operationread
Questions
The Knock MCP server, answered.
Is there a Knock MCP server for Claude?
Yes. actionlake is an MCP gateway: a remote MCP server that gives Claude, or another MCP client, 118 Knock actions across users, objects, messages and tenants, through the same eight tools it uses for every other connector. actionlake is independent; it is not made or endorsed by Knock.
What do I need to connect Knock?
Knock secret API key (sk_...). The free call account { op: "connections.requirements", service: "knock" } lists exactly what to paste.
Can an AI agent delete or change things in Knock?
Only if its key allows it, and only with an explicit confirmation. 21 Knock actions are destructive, including delete user, remove members and delete schedules. Each runs only with confirm: true. Under the human confirm policy, or an approval rule on the key, the run waits until a named person approves it.
Will an AI agent use up my Knock API limit?
actionlake paces every call to the limits in the Knock service file: 60 calls a second per connection. Repeated reads are answered from cache (29 Knock actions can be), which never reaches Knock.
What does a Knock action cost?
One upstream call, the only unit actionlake bills. A list that pages bills one call per page (118 Knock actions page). Cache hits, searches, dry runs and calls Knock refused with 401, 403, 429 or a 5xx are free. The Free plan includes 100,000 calls a month with no card. Paid plans start at US$49 a month for 250,000 calls, with overage from US$0.30 down to US$0.18 per 1,000.
Which Knock API does it cover?
The Knock API v1 (OpenAPI 3, api.knock.app) at api.knock.app. It is built from Knock's documentation as read on 23 October 2026. 118 actions in 12 areas, each one in the signed service file (version 1.0.0).
Does actionlake keep my Knock data, and where?
actionlake processes and stores data in Sydney, Australia; there is no US region yet. Reads may be cached for up to 5 minutes, and a write clears the reads it affects. Each run's request and response is kept, sealed, for your plan's trace window: 1 day on Free, 3 days on Starter, 7 days on Pro, 14 days on Team, 30 days on Business and 30 days on Enterprise. Your Knock credential is sealed under your tenant's key, never logged and never returned. Your traffic is not used to train models.
Which AI clients can use it?
Claude Code, tested by us end to end, and the Claude app as a custom connector, tested by us with an existing key. Other MCP clients that support remote servers over Streamable HTTP (MCP revisions 2025-06-18 and 2025-11-25) and OAuth dynamic client registration, or a bearer header, should connect the same way; we have not tested them. Or plain REST, under the same action names.
Give your agent Knock today.
Start free - 100,000 calls/month, no card. No signup. Hard caps on every key. Cached answers are free.