Checked 30 August 2026, corrected 15 September 2026
What Day.ai integrates with
Six auto-syncing integrations, four agent connectors, one MCP server. Nothing is documented for Salesforce, and Outlook is not supported. If your company runs Microsoft, the product's whole mechanism has no input.
The complete list
| System | Kind | What it does |
|---|---|---|
| Gmail | Auto-sync | Emails, thread summaries, contacts. The core of the product |
| Google Calendar | Auto-sync | Events and attendees |
| Slack | Auto-sync | Messages, channels, directory |
| Gong | Auto-sync | Recordings and transcripts |
| Granola | Auto-sync | Meeting notes |
| Zapier | Auto-sync | Inbound only. People and organizations |
| HubSpot | Connector | Agent reads and acts on objects and pipelines |
| Linear, Notion, Affinity | Connector | Agent tools, on request |
An integration syncs on its own. A connector only works when someone asks the agent. That decides whether data is there when you look, or only when you prompt for it.
From Day.ai's integrations guide, 15 May 2026.
What you will connect another way
- SalesforceNo sync, no connector and no documented API path in their integrations guide, their changelog back to June 2024 or their subprocessor list. Their use cases page does name Salesforce as a source, exactly as it names Zoom, so the marketing and the guide disagree. Put it to them before you plan around either answer.
- Outlook and Microsoft 365Email and calendar ingestion is Google only. Microsoft appears nowhere, including on their subprocessor list.
- Data warehouse and billingNo Snowflake, BigQuery or customer-facing Stripe integration documented.
- Outbound ZapierTheir words: "There are no outbound triggers from Day AI to Zapier at this time." Zapier's directory confirms it: one action, zero triggers, and that action cannot create an opportunity.
Worth reconciling before you buy. Day.ai says it "can sit alongside what you already have" and layers onto "whatever system of record the client already runs." On the evidence, that resolves to HubSpot and Affinity. Salesforce is named on their use cases page and documented in no guide we can find, so a Salesforce shop should ask what sitting alongside actually means before buying.
The part most people miss
There is no documented public REST API. The programmatic surface is an MCP server at day.ai/api/mcp, OAuth 2.0, 20+ tools, and it requires a paid agent tier. Supported clients are Claude on web, mobile and desktop, Cursor, and Claude Code. ChatGPT is not named.
Day.ai is also an MCP client, which is how the HubSpot, Linear, Notion and Affinity connectors work. If you are comparing CRMs on integration breadth, this is the axis that will matter in two years and nobody is comparing on it yet.
Day.ai integration questions
Does Day.ai have a public API?
No REST API is documented. The programmatic surface is the MCP server with OAuth 2.0 and a TypeScript SDK, and it requires a paid agent tier.
How does the Zoom integration work?
It is a meeting bot, not a data integration. It joins calls for events with a Zoom link in your Google Calendar, so it is effectively a calendar feature. Zoom is absent from Day.ai's own integrations guide despite being prominent on the product pages.
Can Day.ai sit alongside our existing CRM?
If that CRM is HubSpot or Affinity, yes, through an agent connector. Salesforce appears on their use cases page and in none of their documentation, so ask them. For anything else there is no documented path.
Where we come in
We build the connections, and own them after
Six things plug straight in and everything else takes a middle step. We build that middle step, test it against real records, and stay accountable for it when something changes at either end.
- Your stack connected, tested with your own data rather than samples
- The direction of every connection chosen deliberately
- The awkward cases handled before somebody finds them
- One person to call when a vendor changes something
Free, no call required
The Day.ai setup guide
Not ready to talk to anyone? Take this instead. No sequence and nothing automated. I may write once to ask whether it helped, and one word back stops that.