# Claude Connectors Explained (2026) | Bamboo Digital > Claude connectors link Claude to tools like QuickBooks and Gmail, free on every plan. How OAuth scoping works, setup steps, and the real risks in 2026. Canonical: https://bamboodigital.io/guides/articles/claude-connectors-explained --- [Guides](https://bamboodigital.io/guides) / Guides Guide # Claude connectors, explained: give Claude access to your tools, not your judgment A Claude connector is a live, permissioned link between Claude and a tool you already run, like QuickBooks, Gmail, or HubSpot, built on the open MCP standard, so Claude can read real data and, if you allow it, act inside that tool instead of you copying information back and forth. It connects through OAuth, costs nothing extra on any Claude plan, and should start read-only: the connector only grants access, it does not add judgment, and widening it too fast is how a small mistake becomes a public or financial one. On this page - [A connector is a live line into a tool you already use, not a memory upgrade](#a-connector-is-a-live-line-into-a-tool-you-already-use-not-a-memory-upgrade) - [OAuth means Claude never sees your password. Scoping decides everything else.](#oauth-means-claude-never-sees-your-password-scoping-decides-everything-else) - [Setting one up takes about 10 minutes, no developer required](#setting-one-up-takes-about-10-minutes-no-developer-required) - [Which connectors are actually worth it for a small business](#which-connectors-are-actually-worth-it-for-a-small-business) - [What connectors cost: generally nothing on top of your plan](#what-connectors-cost-generally-nothing-on-top-of-your-plan) - [What a connector will not do: it grants access, not judgment](#what-a-connector-will-not-do-it-grants-access-not-judgment) ## A connector is a live line into a tool you already use, not a memory upgrade Normally, Claude only knows what you type or paste into the chat. A connector changes that. It is a live, authenticated bridge between Claude and a real outside system: your QuickBooks file, your Gmail, your HubSpot pipeline. Claude can read current data there and, if you allow it, take actions there too, instead of you copying numbers back and forth by hand. Connectors run on MCP (Model Context Protocol), an open standard Anthropic introduced in November 2024 so any AI application can talk to any tool through one common interface, instead of every pairing needing its own custom integration. Anthropic has compared it to a USB-C port for AI: one plug, many devices. MCP has since been adopted well beyond Claude, including by OpenAI and Google DeepMind, and thousands of MCP servers now exist across the industry. Claude's own connectors directory launched in July 2025 with roughly 200 integrations and has kept growing since, covering finance (QuickBooks, PayPal), productivity (Google Workspace, Microsoft 365, Slack), CRM and marketing (HubSpot), design (Canva), signed paperwork (DocuSign), and databases (Airtable), among hundreds of others. Anthropic does not publish a live count, and third-party trackers put the current total anywhere from the low 300s to over 400 by mid-2026, so treat any exact number, including this one, as approximate. The directory itself at [claude.com/connectors](https://claude.com/connectors) is the source to check. This is different from a Project's knowledge files. A file you upload to a Project is static until you replace it. A connector is live: ask about this month's QuickBooks balance and Claude queries the current file directly. Both are ways of grounding Claude in your actual business instead of industry averages, the same idea behind a [business knowledge base](https://bamboodigital.io/guides/what-is-a-business-knowledgebase), but a connector's data moves and a Project's does not. ## OAuth means Claude never sees your password. Scoping decides everything else. Connecting a tool runs through OAuth, a standard hand-off where you log into the service itself (Intuit, Google, Microsoft, whoever runs the tool) on its own login page, approve a specific list of permissions, and that service hands Claude a token limited to exactly what you approved. Claude never sees or stores your QuickBooks or Gmail password. That part is solid and is not really the risk. The risk, and the part worth 5 minutes of attention, is scope. Claude's connector settings define 3 levels per tool or per permission: Always allow, Needs approval, and Blocked. Always allow means Claude uses that tool without asking each time. Needs approval means Claude has to ask before every single use of that action. Blocked hides the tool entirely, and Claude reports that it has no tool for the job rather than attempting a workaround. A connector also inherits whatever you can already do inside that tool. If your own login can delete an invoice, a write-enabled QuickBooks connection can delete an invoice too, exactly as fast and exactly as wrong, the moment you approve the action. Scoping is the only real safety control, because the connector itself has no independent judgment about which actions are safe to take. Microsoft's connector for Claude is a useful example of the conservative end of this spectrum. As of mid-2026 it is read-only, with no exceptions: it can search Outlook mail, SharePoint, OneDrive, and Teams chat and calendar, but it cannot create, edit, or delete anything, send a message, or change a permission, regardless of what you approve. That is the safest shape a connector can take, and a reasonable bar to hold every other connector to until you have watched it work correctly for a few weeks. The practical rule: start read-only wherever the tool offers it. Move to draft-and-approve next. Save always-allow for actions you would not mind Claude getting wrong once, because eventually, on a long enough timeline, it will. ## Setting one up takes about 10 minutes, no developer required - **Open Settings, then Connectors.** In the Claude app or at claude.ai, this is where every available and already-connected tool lives. - **Search the directory for your tool.** Type QuickBooks, Gmail, HubSpot, or whatever you run. Most common small business tools are already listed. - **Click Connect and check the address bar.** This redirects to the tool's own login page, not a page inside Claude, so confirm the domain before you type a password. - **Read the permissions screen before you approve it.** It lists exactly what is being requested: view contacts, read email, view calendar, and so on. Decline anything you do not recognize or need. - **Pick the most restrictive setting the tool offers.** Read-only or needs-approval, not always-allow, for at least the first few weeks. - **Test it on something small and reversible first.** Ask a read-only question, like what were my 5 largest expenses last month, before ever asking it to send, post, or pay anything. - **Revisit the connector list monthly and disconnect what you do not use.** An old connection with standing access is a door nobody is watching. [Book a discovery call](https://bamboodigital.io/start) [See what changes in 30 seconds](https://bamboodigital.io/start#quiz) ## Which connectors are actually worth it for a small business Not every connector in the directory earns a place in your business. These are the ones that come up most for an owner-operator, and the access level worth starting at. Connector What it actually does for you Where to start it Google Workspace (Gmail, Calendar, Drive) Searches and reads Gmail, drafts replies, reads and writes Calendar events, reads files in Drive Read-only; add draft-only once you trust it Microsoft 365 (Outlook, SharePoint, OneDrive, Teams) Searches mail, files, and Teams chat and calendar across your account Read-only, which is currently the only setting Anthropic offers QuickBooks Pulls reports, ages receivables, flags anomalies; some setups add write access to enter transactions with a confirmation step Read-only for reporting; treat any write path as bookkeeper-supervised PayPal Reads settlements, transactions, and disputes; can draft invoices Read-only HubSpot Grounds answers in real CRM data: lead triage, pipeline questions, campaign attribution Read-only, since a bad CRM write compounds fast Canva Generates and edits designs, can publish assets with approval Needs approval on publish DocuSign Sends contracts out for signature, tracks status, files the executed copy Needs approval; it is moving legal documents Airtable Reads and writes records in a base you point it at Read-only until you trust the base structure Slack Drafts messages, previews formatting, and posts with your approval since a January 2026 update (previously read-only) Needs approval on posting GitHub Reads issues, pull requests, and code; relevant mainly if you or a contractor ships software Read-only ## What connectors cost: generally nothing on top of your plan Connecting a tool does not carry its own price tag. Anthropic includes connector access across Free, Pro, Max, and Team, verified against Claude's pricing page and help center in July 2026. Since a February 2026 update, even the Free plan includes basic app connectors (subject to daily usage limits), where before that remote connectors were paid-plan only. Paid plans mainly buy you more usage headroom for connector-heavy work, not extra connectors themselves. So whatever you already pay for Claude is the entire cost. Pro runs $17/month billed annually or $20/month billed monthly: $17/mo x 12 = $204/yr. A connector like QuickBooks or HubSpot adds $0 to that bill. The time cost is the setup walkthrough above, roughly 10 minutes per tool, plus the ongoing job of reviewing what it drafts. If a QuickBooks connector saves you 15 min/day of manual report-pulling, that is 15 min/day x 5 days/wk x 52 wks/yr = 65 hrs/yr. At a $40/hr bookkeeping rate, 65 hrs x $40/hr = $2,600/yr in time back, against a $0 connector cost. What it is A live line into tools you already use - OAuth sign-in, Claude never sees your password - About 10 minutes to set up, no developer - Generally nothing on top of your plan What it is not It grants access, not judgment - It does not know which records matter - It does not decide what to send - Scoping decides what it can touch The article's own boundary line: a connector grants access, not judgment. The live line into your tools is the easy part; deciding what to do with it is still yours. ## What a connector will not do: it grants access, not judgment - **A connector only grants access, it does not add judgment.** It can now see your invoices, but it does not know which client relationship you cannot afford to lose or which number is the exception to your own rule. - **Write access to accounting or email is a real risk if Claude is ungrounded.** QuickBooks integrations that support write access generally require your confirmation before a destructive action like deleting an invoice, but a rushed approval is still a rushed approval. See [how to handle AI on customer comms safely](https://bamboodigital.io/guides/playbooks/ai-customer-comms-safely) before you widen scope on anything customer-facing. - **Some connectors have real, documented gaps.** Claude's Gmail connector cannot read attachments, only their names and metadata, so a customer thread with an attached PDF still needs you to open it yourself. - **Microsoft 365 is read-only end to end right now.** Useful for safety, but it means Claude can draft the email from what it finds in Outlook, and you still have to send it yourself. - **A connector inherits your own permissions, mistakes included.** If your login can void an invoice or delete a contact, a write-enabled connector can too, exactly as fast, the moment it is approved to. - **An old, forgotten connection is a door nobody is watching.** Disconnect anything you set up once and stopped using. None of this is a reason to skip connectors. It is a reason to sequence them the way you would sequence a new employee: read-only access first, a track record next, wider access only once you have watched it get things right. The setup itself is 10 minutes. The judgment about what it is allowed to touch is the actual work, and it is worth doing before the first connector, not after the first mistake. If you want that sequencing built around your specific tools and rules rather than figured out alone, that is the kind of setup we do in [month one](https://bamboodigital.io/how-it-works). Questions ## Asked before reading this far. What exactly is a Claude connector? **A live, permissioned link between Claude and an outside tool.** Built on the open **MCP standard**, a connector lets Claude read current data in a system like QuickBooks or Gmail and, only where you allow it, take actions there. It is different from uploading a file to a Project, which is a static snapshot rather than a live connection. Is it safe to give Claude write access to my accounting or email? **Only with limits, and not by default.** Start every connector **read-only** where the tool allows it, and set anything that changes or sends data to **needs approval** rather than always allow. A connector inherits your own permissions in that tool, mistakes included, so the safety comes entirely from the scope you grant, not from Claude's judgment. Do Claude connectors cost extra? **No, not directly.** Connector access is **included on Free, Pro, Max, and Team plans**, verified against Claude's pricing page in July 2026. Since a **February 2026 update** even the Free plan includes basic connectors under daily usage limits. Paid plans buy more overall usage headroom, not extra connectors. Can Claude read email attachments through a connector? **Not through the Gmail connector, no.** Claude can see that an attachment exists, along with its **name and basic metadata**, but not its actual contents. If your customer correspondence lives inside attached PDFs or images, you still have to open and read those yourself. ### Sources - [Claude connectors directory (Anthropic)](https://claude.com/connectors) - [Use connectors to extend Claude's capabilities (Claude Help Center)](https://support.claude.com/en/articles/11176164-use-connectors-to-extend-claude-s-capabilities) - [Microsoft 365 connector security guide (Claude Help Center)](https://support.claude.com/en/articles/12684923-microsoft-365-connector-security-guide) - [Use Google Workspace connectors (Claude Help Center)](https://support.claude.com/en/articles/10166901-use-google-workspace-connectors) - [Introducing the Model Context Protocol (Anthropic)](https://www.anthropic.com/news/model-context-protocol) - [Claude plans and pricing (Anthropic)](https://claude.com/pricing) - [Introducing Claude for Small Business (Anthropic)](https://www.anthropic.com/news/claude-for-small-business) Related ### Related reading. [What Claude actually does for a small business owner Read it](https://bamboodigital.io/guides/articles/claude-for-small-business) [Claude vs Gemini for a small business Read it](https://bamboodigital.io/guides/articles/claude-vs-gemini-for-business) [Using AI on customer comms safely Read it](https://bamboodigital.io/guides/playbooks/ai-customer-comms-safely) [What is a business knowledge base? Read it](https://bamboodigital.io/guides/what-is-a-business-knowledgebase) Keep reading - [You do not need to write code to put Claude Code to work](https://bamboodigital.io/guides/articles/claude-code-for-non-developers) - [Claude Cowork turns a messy folder into finished work, one approval at a time](https://bamboodigital.io/guides/articles/claude-cowork-explained) The part no tool does for you ## The setup is the product. That is what month one builds. Your rules, voice, and numbers written down, the tools wired, drafts you approve. 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