Circleback

Search meeting notes, transcripts, action items, calendar and connected email.

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What the Circleback connector does

The Circleback MCP server connects a Circleback meeting archive to Claude, ChatGPT, Claude Code and any MCP-compatible agent. It searches meeting notes, opens verbatim transcripts with speaker labels, and reaches action items, calendar events, people, companies and connected email. Every documented tool reads. Sign-in is OAuth with dynamic client registration.

Verified connector

Listed by Anthropic as a partner connector in its Connectors Directory.

Connection checked by Agentman on .

Anthropic states this reflects the level of review a connector received, not a security audit.

Circleback tools (12)

  • SearchMeetings
  • SearchTranscripts
  • GetTranscriptsForMeetings
  • ReadMeetings
  • FindProfiles
  • FindDomains
  • SearchCalendarEvents
  • SearchEmails
  • SearchSupportArticles

Tool names from Anthropic's directory listing. This server requires sign-in, so we could not read tool descriptions or parameter schemas.

Limits

  • One OAuth scope, and it separates nothing. Circleback's RFC 9728 resource descriptor and its authorization server metadata both advertise scopes_supported as the single value user, observed live on 2026-08-22. There is no scope for meetings versus email, and none for reading titles versus reading verbatim transcripts. The only place to narrow access is your MCP client's own tool toggles.
  • Circleback publishes no per-tool parameter schemas. The support article gives a one-line description per tool and nothing more. The parameter detail on this page is inferred from the matching REST endpoints, which Circleback documents fully — that mapping is ours, not Circleback's.
  • We could not read tool schemas or safety annotations. The endpoint returned 401 to an anonymous request, so readOnlyHint and destructiveHint are unknown for all twelve tools.
  • FindDomains is unexplained. Anthropic's directory lists it; no Circleback surface names it. Our reading is that it renamed to FindCompanies, but the endpoint would not enumerate to us and we cannot rule out a tool that exists and is undocumented.
  • Whether privateNotes reaches the agent is unresolved. The field exists on the meeting record and Circleback publishes no MCP response schema.
  • Transcripts survive the recording toggle. Turning off recording storage stops Circleback keeping audio and video; Circleback states notes, action items, transcripts and insights are still generated. The connector's most sensitive output is unaffected by that control.
  • No published rate limits. Circleback documents cursor pagination on its REST list endpoints and nothing about request ceilings for MCP. Absence of a documented limit is not the absence of a limit.
  • Retention controls are plan-gated. Circleback lists custom data retention, enforceable workspace defaults and access controls as Team-tier features, and HIPAA compliance as Enterprise. On the Individual plan those levers do not exist.
  • The listed documentation URL redirects off-site. circleback.ai/docs/mcp returns 307 to Circleback's Intercom-hosted support centre. The redirect target is the real documentation and is cited below.

Frequently asked questions

How many tools does the Circleback MCP server have?

Twelve by Circleback's own support article, against nine in Anthropic's directory snapshot. The three the snapshot omits are SearchActionItems, FindCompanies and ListTags. Circleback's CLI documents the same twelve capabilities command for command, so the vendor list is corroborated twice. Build allowlists from Circleback's article, not from the directory listing.

Can the Circleback MCP server change or delete my meetings?

No. All twelve documented tools read. Every name begins with Search, Read, Get, Find or List, and Circleback's article describes each as finding or retrieving. Circleback's REST API does expose delete for meetings, action items and tags, plus update for meetings — none of those verbs appears among the MCP tools, so the connector reaches a strictly narrower surface than the API key does.

Does the Circleback connector let an agent read other people's speech?

Yes, verbatim and speaker-attributed. GetTranscriptsForMeetings returns full transcripts with speaker labels and timestamps, and SearchTranscripts finds where something was said across the whole archive. Circleback's transcript schema pairs each line with a named speaker. Everyone else in the room consented to Circleback recording, not necessarily to an AI agent replaying what they said.

What OAuth scopes does the Circleback MCP server request?

Exactly one, called user, and it draws no line anywhere. Circleback's RFC 9728 descriptor and its authorization server metadata both advertise scopes_supported as that single value, confirmed live on 2026-08-22. So the consent screen cannot grant meeting titles without also granting verbatim transcripts and connected email. Access narrowing has to happen client-side, by disabling tools.

Can the Circleback MCP server read my email?

Yes, if you connected a mailbox to Circleback. SearchEmails queries connected Gmail or Outlook accounts by keyword, sender, recipient or date range. Circleback states it reads email on demand rather than storing copies, so the tool reaches your live mailbox at query time. Disconnecting the account from Settings, Connected accounts is what removes that reach.

Do meeting participants know Circleback is recording?

It depends which capture mode you use. The Circleback bot joins Zoom, Google Meet, Microsoft Teams and Webex as a visible participant, which is the notice. The desktop and mobile apps record locally with nothing joining the call, and Circleback presents that as the option for when you would prefer the bot not appear. The MCP connector adds no consent check either way.

Can the Circleback MCP connector share a meeting or send a follow-up email?

No. Sharing exists in Circleback, and an automation can share every matching meeting with a whole workspace, but no documented MCP tool triggers one. Automations run on meeting completion, not on tool calls, and none of the twelve tools creates, edits or runs one. The connector reads what automations already produced; it cannot start an outbound path.

Does the Circleback MCP server return private meeting notes?

The underlying meeting record carries a privateNotes field alongside shared notes, and ReadMeetings is documented as returning detailed meeting information including notes. Circleback does not publish the MCP tool's response schema, so we could not confirm whether private notes cross that boundary. Treat it as unresolved and check one meeting yourself before granting broad access.

Sources

More Communication connectors

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    Give an AI agent its own email inbox: create inboxes, read threads and send mail to anyone.

  • Fellow.ai

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  • Fireflies

    Search Fireflies transcripts and summaries.

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