// MCP TOOL REFERENCE

TWENTY MCP SERVER TOOLS

219 tools from the Twenty MCP Server MCP Server, categorised by risk level.

View the Twenty MCP Server policy →
// ALL 219 TWENTY MCP SERVER TOOLS
READ 95 tools
Read findAttachmentDuplicates **depth** can be provided to request your **attachment** Read findBlocklistDuplicates **depth** can be provided to request your **blocklist** Read findCalendarChannelDuplicates **depth** can be provided to request your **calendarChannel** Read findCalendarChannelEventAssociationDuplicates **depth** can be provided to request your **calendarChannelEventAssociation** Read findCalendarEventDuplicates **depth** can be provided to request your **calendarEvent** Read findCalendarEventParticipantDuplicates **depth** can be provided to request your **calendarEventParticipant** Read findCompanyDuplicates **depth** can be provided to request your **company** Read findConnectedAccountDuplicates **depth** can be provided to request your **connectedAccount** Read findFavoriteDuplicates **depth** can be provided to request your **favorite** Read findFavoriteFolderDuplicates **depth** can be provided to request your **favoriteFolder** Read findManyAttachments **order_by**, **filter**, **limit**, **depth**, **starting_after** or **ending_before** can be provided to ... Read findManyBlocklists **order_by**, **filter**, **limit**, **depth**, **starting_after** or **ending_before** can be provided to ... Read findManyCalendarChannelEventAssociations **order_by**, **filter**, **limit**, **depth**, **starting_after** or **ending_before** can be provided to ... Read findManyCalendarChannels **order_by**, **filter**, **limit**, **depth**, **starting_after** or **ending_before** can be provided to ... Read findManyCalendarEventParticipants **order_by**, **filter**, **limit**, **depth**, **starting_after** or **ending_before** can be provided to ... Read findManyCalendarEvents **order_by**, **filter**, **limit**, **depth**, **starting_after** or **ending_before** can be provided to ... Read findManyCompanies **order_by**, **filter**, **limit**, **depth**, **starting_after** or **ending_before** can be provided to ... Read findManyConnectedAccounts **order_by**, **filter**, **limit**, **depth**, **starting_after** or **ending_before** can be provided to ... Read findManyFavoriteFolders **order_by**, **filter**, **limit**, **depth**, **starting_after** or **ending_before** can be provided to ... Read findManyFavorites **order_by**, **filter**, **limit**, **depth**, **starting_after** or **ending_before** can be provided to ... Read findManyMessageChannelMessageAssociations **order_by**, **filter**, **limit**, **depth**, **starting_after** or **ending_before** can be provided to ... Read findManyMessageChannels **order_by**, **filter**, **limit**, **depth**, **starting_after** or **ending_before** can be provided to ... Read findManyMessageFolders **order_by**, **filter**, **limit**, **depth**, **starting_after** or **ending_before** can be provided to ... Read findManyMessageParticipants **order_by**, **filter**, **limit**, **depth**, **starting_after** or **ending_before** can be provided to ... Read findManyMessages **order_by**, **filter**, **limit**, **depth**, **starting_after** or **ending_before** can be provided to ... Read findManyMessageThreads **order_by**, **filter**, **limit**, **depth**, **starting_after** or **ending_before** can be provided to ... Read findManyNotes **order_by**, **filter**, **limit**, **depth**, **starting_after** or **ending_before** can be provided to ... Read findManyNoteTargets **order_by**, **filter**, **limit**, **depth**, **starting_after** or **ending_before** can be provided to ... Read findManyOpportunities **order_by**, **filter**, **limit**, **depth**, **starting_after** or **ending_before** can be provided to ... Read findManyPeople **order_by**, **filter**, **limit**, **depth**, **starting_after** or **ending_before** can be provided to ... Read findManyTasks **order_by**, **filter**, **limit**, **depth**, **starting_after** or **ending_before** can be provided to ... Read findManyTaskTargets **order_by**, **filter**, **limit**, **depth**, **starting_after** or **ending_before** can be provided to ... Read findManyTimelineActivities **order_by**, **filter**, **limit**, **depth**, **starting_after** or **ending_before** can be provided to ... Read findManyViewFields **order_by**, **filter**, **limit**, **depth**, **starting_after** or **ending_before** can be provided to ... Read findManyViewFilters **order_by**, **filter**, **limit**, **depth**, **starting_after** or **ending_before** can be provided to ... Read findManyViews **order_by**, **filter**, **limit**, **depth**, **starting_after** or **ending_before** can be provided to ... Read findManyWorkflowAutomatedTriggers **order_by**, **filter**, **limit**, **depth**, **starting_after** or **ending_before** can be provided to ... Read findManyWorkflowRuns **order_by**, **filter**, **limit**, **depth**, **starting_after** or **ending_before** can be provided to ... Read findManyWorkflows **order_by**, **filter**, **limit**, **depth**, **starting_after** or **ending_before** can be provided to ... Read findManyWorkflowVersions **order_by**, **filter**, **limit**, **depth**, **starting_after** or **ending_before** can be provided to ... Read findManyWorkspaceMembers **order_by**, **filter**, **limit**, **depth**, **starting_after** or **ending_before** can be provided to ... Read findMessageChannelDuplicates **depth** can be provided to request your **messageChannel** Read findMessageChannelMessageAssociationDuplicates **depth** can be provided to request your **messageChannelMessageAssociation** Read findMessageDuplicates **depth** can be provided to request your **message** Read findMessageFolderDuplicates **depth** can be provided to request your **messageFolder** Read findMessageParticipantDuplicates **depth** can be provided to request your **messageParticipant** Read findMessageThreadDuplicates **depth** can be provided to request your **messageThread** Read findNoteDuplicates **depth** can be provided to request your **note** Read findNoteTargetDuplicates **depth** can be provided to request your **noteTarget** Read findOneAttachment **depth** can be provided to request your **attachment** Read findOneBlocklist **depth** can be provided to request your **blocklist** Read findOneCalendarChannel **depth** can be provided to request your **calendarChannel** Read findOneCalendarChannelEventAssociation **depth** can be provided to request your **calendarChannelEventAssociation** Read findOneCalendarEvent **depth** can be provided to request your **calendarEvent** Read findOneCalendarEventParticipant **depth** can be provided to request your **calendarEventParticipant** Read findOneCompany **depth** can be provided to request your **company** Read findOneConnectedAccount **depth** can be provided to request your **connectedAccount** Read findOneFavorite **depth** can be provided to request your **favorite** Read findOneFavoriteFolder **depth** can be provided to request your **favoriteFolder** Read findOneMessage **depth** can be provided to request your **message** Read findOneMessageChannel **depth** can be provided to request your **messageChannel** Read findOneMessageChannelMessageAssociation **depth** can be provided to request your **messageChannelMessageAssociation** Read findOneMessageFolder **depth** can be provided to request your **messageFolder** Read findOneMessageParticipant **depth** can be provided to request your **messageParticipant** Read findOneMessageThread **depth** can be provided to request your **messageThread** Read findOneNote **depth** can be provided to request your **note** Read findOneNoteTarget **depth** can be provided to request your **noteTarget** Read findOneOpportunity **depth** can be provided to request your **opportunity** Read findOnePerson **depth** can be provided to request your **person** Read findOneTask **depth** can be provided to request your **task** Read findOneTaskTarget **depth** can be provided to request your **taskTarget** Read findOneTimelineActivity **depth** can be provided to request your **timelineActivity** Read findOneView **depth** can be provided to request your **view** Read findOneViewField **depth** can be provided to request your **viewField** Read findOneViewFilter **depth** can be provided to request your **viewFilter** Read findOneWorkflow **depth** can be provided to request your **workflow** Read findOneWorkflowAutomatedTrigger **depth** can be provided to request your **workflowAutomatedTrigger** Read findOneWorkflowRun **depth** can be provided to request your **workflowRun** Read findOneWorkflowVersion **depth** can be provided to request your **workflowVersion** Read findOneWorkspaceMember **depth** can be provided to request your **workspaceMember** Read findOpportunityDuplicates **depth** can be provided to request your **opportunity** Read findPersonDuplicates **depth** can be provided to request your **person** Read findTaskDuplicates **depth** can be provided to request your **task** Read findTaskTargetDuplicates **depth** can be provided to request your **taskTarget** Read findTimelineActivityDuplicates **depth** can be provided to request your **timelineActivity** Read findViewDuplicates **depth** can be provided to request your **view** Read findViewFieldDuplicates **depth** can be provided to request your **viewField** Read findViewFilterDuplicates **depth** can be provided to request your **viewFilter** Read findWorkflowAutomatedTriggerDuplicates **depth** can be provided to request your **workflowAutomatedTrigger** Read findWorkflowDuplicates **depth** can be provided to request your **workflow** Read findWorkflowRunDuplicates **depth** can be provided to request your **workflowRun** Read findWorkflowVersionDuplicates **depth** can be provided to request your **workflowVersion** Read findWorkspaceMemberDuplicates **depth** can be provided to request your **workspaceMember** Read GetOpenApiSchema Get Open Api Schema Read getUsageInstructions **CALL THIS FIRST** - Get critical usage guidelines and best practices for this Twenty CRM instance. Contai...
WRITE 93 tools
Write createManyAttachments Create Many attachments Write createManyBlocklists Create Many blocklists Write createManyCalendarChannelEventAssociations Create Many calendarChannelEventAssociations Write createManyCalendarChannels Create Many calendarChannels Write createManyCalendarEventParticipants Create Many calendarEventParticipants Write createManyCalendarEvents Create Many calendarEvents Write createManyCompanies Create Many companies Write createManyConnectedAccounts Create Many connectedAccounts Write createManyFavoriteFolders Create Many favoriteFolders Write createManyFavorites Create Many favorites Write createManyMessageChannelMessageAssociations Create Many messageChannelMessageAssociations Write createManyMessageChannels Create Many messageChannels Write createManyMessageFolders Create Many messageFolders Write createManyMessageParticipants Create Many messageParticipants Write createManyMessages Create Many messages Write createManyMessageThreads Create Many messageThreads Write createManyNotes Create Many notes Write createManyNoteTargets Create Many noteTargets Write createManyOpportunities Create Many opportunities Write createManyPeople Create Many people Write createManyTasks Create Many tasks Write createManyTaskTargets Create Many taskTargets Write createManyTimelineActivities Create Many timelineActivities Write createManyViewFields Create Many viewFields Write createManyViewFilters Create Many viewFilters Write createManyViews Create Many views Write createManyWorkflowAutomatedTriggers Create Many workflowAutomatedTriggers Write createManyWorkflowRuns Create Many workflowRuns Write createManyWorkflows Create Many workflows Write createManyWorkflowVersions Create Many workflowVersions Write createManyWorkspaceMembers Create Many workspaceMembers Write createOneAttachment Create One attachment Write createOneBlocklist Create One blocklist Write createOneCalendarChannel Create One calendarChannel Write createOneCalendarChannelEventAssociation Create One calendarChannelEventAssociation Write createOneCalendarEvent Create One calendarEvent Write createOneCalendarEventParticipant Create One calendarEventParticipant Write createOneCompany Create One company Write createOneConnectedAccount Create One connectedAccount Write createOneFavorite Create One favorite Write createOneFavoriteFolder Create One favoriteFolder Write createOneMessage Create One message Write createOneMessageChannel Create One messageChannel Write createOneMessageChannelMessageAssociation Create One messageChannelMessageAssociation Write createOneMessageFolder Create One messageFolder Write createOneMessageParticipant Create One messageParticipant Write createOneMessageThread Create One messageThread Write createOneNote Create One note Write createOneNoteTarget Create One noteTarget Write createOneOpportunity Create One opportunity Write createOnePerson Create One person Write createOneTask Create One task Write createOneTaskTarget Create One taskTarget Write createOneTimelineActivity Create One timelineActivity Write createOneView Create One view Write createOneViewField Create One viewField Write createOneViewFilter Create One viewFilter Write createOneWorkflow Create One workflow Write createOneWorkflowAutomatedTrigger Create One workflowAutomatedTrigger Write createOneWorkflowRun Create One workflowRun Write createOneWorkflowVersion Create One workflowVersion Write createOneWorkspaceMember Create One workspaceMember Write UpdateOneAttachment Update One attachment Write UpdateOneBlocklist Update One blocklist Write UpdateOneCalendarChannel Update One calendarChannel Write UpdateOneCalendarChannelEventAssociation Update One calendarChannelEventAssociation Write UpdateOneCalendarEvent Update One calendarEvent Write UpdateOneCalendarEventParticipant Update One calendarEventParticipant Write UpdateOneCompany Update One company Write UpdateOneConnectedAccount Update One connectedAccount Write UpdateOneFavorite Update One favorite Write UpdateOneFavoriteFolder Update One favoriteFolder Write UpdateOneMessage Update One message Write UpdateOneMessageChannel Update One messageChannel Write UpdateOneMessageChannelMessageAssociation Update One messageChannelMessageAssociation Write UpdateOneMessageFolder Update One messageFolder Write UpdateOneMessageParticipant Update One messageParticipant Write UpdateOneMessageThread Update One messageThread Write UpdateOneNote Update One note Write UpdateOneNoteTarget Update One noteTarget Write UpdateOneOpportunity Update One opportunity Write UpdateOnePerson Update One person Write UpdateOneTask Update One task Write UpdateOneTaskTarget Update One taskTarget Write UpdateOneTimelineActivity Update One timelineActivity Write UpdateOneView Update One view Write UpdateOneViewField Update One viewField Write UpdateOneViewFilter Update One viewFilter Write UpdateOneWorkflow Update One workflow Write UpdateOneWorkflowAutomatedTrigger Update One workflowAutomatedTrigger Write UpdateOneWorkflowRun Update One workflowRun Write UpdateOneWorkflowVersion Update One workflowVersion Write UpdateOneWorkspaceMember Update One workspaceMember
DESTRUCTIVE 31 tools
Destructive deleteOneAttachment Delete One attachment Destructive deleteOneBlocklist Delete One blocklist Destructive deleteOneCalendarChannel Delete One calendarChannel Destructive deleteOneCalendarChannelEventAssociation Delete One calendarChannelEventAssociation Destructive deleteOneCalendarEvent Delete One calendarEvent Destructive deleteOneCalendarEventParticipant Delete One calendarEventParticipant Destructive deleteOneCompany Delete One company Destructive deleteOneConnectedAccount Delete One connectedAccount Destructive deleteOneFavorite Delete One favorite Destructive deleteOneFavoriteFolder Delete One favoriteFolder Destructive deleteOneMessage Delete One message Destructive deleteOneMessageChannel Delete One messageChannel Destructive deleteOneMessageChannelMessageAssociation Delete One messageChannelMessageAssociation Destructive deleteOneMessageFolder Delete One messageFolder Destructive deleteOneMessageParticipant Delete One messageParticipant Destructive deleteOneMessageThread Delete One messageThread Destructive deleteOneNote Delete One note Destructive deleteOneNoteTarget Delete One noteTarget Destructive deleteOneOpportunity Delete One opportunity Destructive deleteOnePerson Delete One person Destructive deleteOneTask Delete One task Destructive deleteOneTaskTarget Delete One taskTarget Destructive deleteOneTimelineActivity Delete One timelineActivity Destructive deleteOneView Delete One view Destructive deleteOneViewField Delete One viewField Destructive deleteOneViewFilter Delete One viewFilter Destructive deleteOneWorkflow Delete One workflow Destructive deleteOneWorkflowAutomatedTrigger Delete One workflowAutomatedTrigger Destructive deleteOneWorkflowRun Delete One workflowRun Destructive deleteOneWorkflowVersion Delete One workflowVersion Destructive deleteOneWorkspaceMember Delete One workspaceMember

Route Twenty MCP Server through PolicyLayer and every one of its 219 tools is checked against your policy before it runs.

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// FAQ
How many tools does the Twenty MCP Server MCP server have? +

The Twenty MCP Server MCP server exposes 219 tools across 3 categories: Read, Write, Destructive.

How do I enforce policies on Twenty MCP Server tools? +

Route the Twenty MCP Server server through the PolicyLayer gateway. Define allow, deny, or approval rules per tool in the dashboard; they are enforced on every call before it reaches the server.

What risk categories do Twenty MCP Server tools fall into? +

Twenty MCP Server tools are categorised as Read (95), Write (93), Destructive (31). Each category has a recommended default policy.

Enforce policy on every Twenty MCP Server tool call.

Start from Twenty MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

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