Nysa vs Circleback
Beyond lookups: a brain that learns.
Circleback takes meeting notes and looks up your email when you ask. Nysa turns your team's meetings, email, and calendar into shared facts with sources, so every teammate's agent already knows.
Comparison
Where they differ.
| Feature | Circleback | Nysa |
|---|---|---|
| Meeting recording and transcripts | ✓ | ✓ |
| Meeting enrichment | ✓ | ✓ |
| Email enrichment | ✕ | ✓ |
| Email history enriched on day one* | ✕ | ✓ |
| Calendar enrichment | ✕ | ✓ |
| Calendar history enriched on day one* | ✕ | ✓ |
| A page for every person and company you work with | ✓‡ | ✓ |
| Every fact cites its source | ✕† | ✓ |
| Shared across the team | ✓ | ✓ |
| Raw email stays private to its owner | ✓ | ✓ |
| Each agent sees only what its teammate can see | ✕ | ✓ |
| MCP for your agents | ✓ | ✓ |
| Agents can write back | ✓ | ✓ |
| Nothing to host | ✓ | ✓ |
| Price | $15/user/monthPro, billed annually | $99/monthwhole team, up to 10 users |
Three differences
What changes when email becomes team knowledge.
Email becomes team knowledge
Email is read on demand for your own notes and questions, and isn't stored.
Facts from email join the shared brain, each with its source, while raw email stays private to its owner.
Receipts for every source
Answers can point back to meetings. Email is read when you ask and isn't kept, so it can't be cited later.
Facts from meetings, email, and calendar each keep their quote, date, and source, starting with the last 180 days.
One price for the team
$15 per user per month on Pro, billed annually: $150 a month for a team of 10.
$99 a month for the whole team, up to 10 people.
Which one fits
Pick the tool for the job.
You want polished meeting notes, action items, and automations into tools like HubSpot, Salesforce, and Notion.
Several people on your team use AI agents and need what the whole team learns from email and calendar, not just meetings.
Getting started
Try it next to Circleback.
- 01Sign in with GoogleNysa enriches the last 180 days of your email and calendar on day one.
- 02Invite your teamEach agent sees only what its teammate can see.
- 03Connect your agentsPoint any MCP client at mcp.usenysa.com/mcp.
Security
Built to be trusted with your inbox.
Independently tested
TAC Security, a lab authorized by the App Defense Alliance, assessed Nysa at CASA Tier 2, and we passed all requirements.
Approved for Gmail and Calendar
Google reviewed how we use your Gmail and Calendar data and approved our access.
Your inbox stays yours
Raw email stays private to its owner. Your team sees only the facts drawn from it.
Never used to train AI
Your company owns its workspace. We never sell your data or use it to train AI models.
FAQ
Questions, answered.
Can I use Circleback and Nysa together?
Yes. Nysa connects to your agents over MCP, so you can try it next to Circleback. On calls, you'll likely want one notetaker, so choose which one joins.
Circleback reads my email too. What's different?
Circleback reads email on demand for your own notes and questions, and doesn't store it. Nysa turns email into facts with sources in a shared brain, so your teammates' agents benefit too, while raw email stays private to its owner.
How much does Nysa cost?
Plans are priced per team, by team size. See Pricing for current plans.
Which agents work with Nysa?
Any agent that connects over MCP, including Claude, ChatGPT, Cursor, Codex, OpenClaw, and Hermes. Setup guides: Claude · ChatGPT.
Who owns our data?
Your company owns its workspace. Nysa uses your data only to provide the service and never to train AI models. See the Privacy Policy.