Who it is for
Teams that record their meetings in Circleback and want that history queryable alongside email and calendar context.
Circleback
Retrieves meeting notes, transcripts, and action items
Overview
What Circleback does
Circleback is a notetaker that sits on meetings, transcribes them, writes up notes, and pulls out action items. Beyond the notes themselves, it supports automations that extract specified information from each meeting and push it into other systems such as a CRM, an issue tracker, or Slack.
The ChatGPT app is the retrieval side of that. It searches and returns context from meeting notes and transcripts, calendar entries, action items, people and company records, support articles, and email threads from connected accounts.
Questions can span everything a team has recorded rather than a single meeting, which is how the product describes itself as an organizational memory.
What stands out
Retrieval reaches past transcripts into calendar events, contacts, support articles, and connected email.
Availability
Where Circleback is listed
Circleback ships this on both marketplaces: Circleback is listed in the Claude connectors directory and in the ChatGPT apps directory, under the same publisher domain.
Only 392 of the 3,150 products in this directory are listed in both marketplaces. One MCP server can serve both surfaces; what differs is each platform's listing and review process.
ChatGPT listing
In the ChatGPT apps directory
- Developer
- Circleback AI, Inc.
- Filed under
- Productivity
- Listed since
- May 2026
- Authentication
- Authenticates when installed
- Website
- circleback.ai
- Policies published
- Privacy policy · Terms of service
- Official listing
- Open in ChatGPT
- Snapshot
- August 2026
Claude listing
In the Claude connectors directory
Circleback publishes 9 tools to Claude. That is a mid-sized surface: 41.3% of the 1,253 Claude-listed connectors expose fewer.
The median Claude-listed connector filed under Communication publishes 11, so this one sits 2 tools below its bucket's median, 19th of 29.
It falls in the 7-10 tools band, which holds 14.6% of the Claude directory.
Circleback publishes a remote MCP endpoint. Claude connects to it over HTTP; there is nothing to install locally.
Every connector in the Claude directory is remote, all 1,253 of them, so transport is not a differentiator there.
- Publisher
- Circleback
- Verification
- Verified partner (37.8% of the Claude directory)
- Filed under
- Communication
- Endpoint
-
https://circleback.ai/api/mcp - Documentation
- Publisher setup docs
- Published tools
- 9 · 7-10 tools band
- Depth rank in Communication
- 19 of 29
- Snapshot
- August 2026
Circleback carries partner verification in the Claude directory, which 474 of 1,253 listings do (37.8%). That is a review step past self-publishing, not an Anthropic-built server.
In the publisher's words
How Circleback describes it
Bring context from Circleback into Claude. Search and access meeting notes, transcripts, calendar events, emails, people, companies, and more.
Quoted from the connector's own Claude directory listing as captured in August 2026. Node8 did not write it and does not vouch for it.
Nearby
Other Communication connectors
Fellow.ai
Search meeting transcripts, summaries and action items in Fellow
Claude
Gmail
Search, read and label Gmail threads, and draft replies
Claude
Infobip Documentation
Semantic search over Infobip's product and API documentation
Claude
Intercom
Intercom conversations, contacts, and tickets in chat
Claude · ChatGPT
Mailopoly Inbox
One search across Gmail, Outlook, Apple, Yahoo and IMAP mail
Claude
MeetGeek
Search meeting records from Zoom, Meet, and Teams
ChatGPT
This is an independent catalogue entry compiled by Node8 from Circleback's public marketplace listings as they stood in August 2026. Listing facts come from the marketplaces; the comparisons against the rest of the directory and any live-endpoint measurements are Node8's. Node8 is not affiliated with Circleback, and inclusion here is not an endorsement.
Want your company reachable inside ChatGPT and Claude?
Node8 builds MCP servers end to end: deciding which tools are worth exposing, the authentication and permission model, the review submissions, and the onboarding that gets them used. One server serves ChatGPT, Claude, and Microsoft Copilot.