Skip to content
Custom Connectors

Is it safe to give Claude write access?

It is a fair question to ask before you let an assistant act in a production system. The short answer: a custom connector only ever has the access you already have, only does the actions you chose, and waits for your approval on anything destructive. Here is exactly how that works.

Authenticated as you

The connector signs in through OAuth as your own account, so Claude inherits the exact permissions you already have and never more.

Read and write kept separate

Read and write tools are distinct, scoped capabilities. Claude gets the specific actions you chose and nothing else the API could do.

You approve the risky steps

Create and update flow inside a conversation, while delete and send wait for a human-in-the-loop confirmation you control.

Revocable at any time

Remove the connector in Claude or revoke the grant and access stops immediately. Nothing about the build locks you in.

Key takeaways

  • The connector authenticates as your own account through OAuth, so Claude never gets more access than you already have.
  • Read and write tools are separate and scoped: Claude has only the specific actions you chose, and delete or send wait for your confirmation.
  • You can start read-only and add write actions once you have watched Claude work in your tool.
  • Access is revocable at any time. Remove the connector or revoke the grant and it stops immediately.
  • On-prem and firewalled systems connect over a secure, allowlisted path, never a public endpoint.

Does a connector give Claude more access than I have?

No. A custom connector authenticates as your own account through OAuth, so it inherits the exact permissions that account already holds and never more. It also acts only inside a Claude conversation you start, so it is not a standing service that runs on its own or that anyone else can invoke.

What stops Claude from doing something destructive?

Two things. First, read and write tools are built as separate, narrowly scoped capabilities, so the connector exposes only the specific actions you chose and nothing else the API could technically do. Second, higher-risk actions like delete and send are gated behind a human-in-the-loop confirmation: Claude proposes the action and waits for your approval before anything irreversible happens.

Can I start read-only and add writing later?

Yes, and many teams do. We can ship a read-only connector first so you can watch Claude work safely inside your tool, then add write actions one at a time as you build confidence. Each write action is a deliberate, scoped addition rather than a blanket grant.

Where do my credentials and data go?

The connector authenticates against your own account and moves data between that tool and the Claude conversation you are in. We host and maintain the connector and handle the OAuth lifecycle, and we do not sell or repurpose your data. How Claude itself handles a conversation is governed by your own Anthropic plan and its data terms, not by us.

How do I revoke access?

You stay in control at all times. Remove the connector inside Claude, revoke the OAuth grant from your tool's account settings, or rotate the credential, and the connector's access ends immediately. Nothing about the build locks you in.

What about software behind a firewall or on-prem?

Firewalled and on-prem systems connect through secure connectivity agreed up front, most commonly IP allowlisting: your network only accepts traffic from our known hosting address, so your application is never exposed publicly. The connector reaches it over that approved path with the same scoped, separated read-write design as any cloud build.

Low-risk by design

Trust is not only about the connector. It is about how you commit.

  • See the exact scope and price before anything is built. The build tool gives you both up front.
  • Nothing is charged until you approve the scope.
  • Start read-only and add write actions only once Claude has earned it in your tool.
  • We host, support, and maintain what we ship.

Frequently asked questions

Will Claude train on my data?
The connector does not store or repurpose your data. It only passes information between your tool and the Claude conversation you start. How that conversation is handled, including data retention and training, is governed by your own Anthropic plan and its terms, which you control, not by us.
Can anyone else use my connector?
No. It runs against your own account and acts only inside Claude conversations you start, with your permissions. It is not a public endpoint, and there is no shared or standing access for anyone else.
Do you store my API keys or tokens?
To keep a hosted connector running we manage the OAuth tokens it uses, stored securely and used only to perform the actions you scoped. You can revoke them at any time from your tool's account settings, which immediately cuts the connector's access.
What permissions does the connector actually need?
The narrowest the work requires. We scope it to the specific actions you chose, so it can do those and nothing broader, even where the underlying API would technically allow more. The connector also never exceeds the permissions of the account it authenticates as.
What if a write action does something I did not want?
The most sensitive steps, like delete and send, are gated and do not run without your approval. Create and update actions operate inside your tool's own history and permissions, so they are visible and reversible the same way any change your team makes is. If behavior ever needs adjusting, maintenance is part of the engagement.

Tell us what you run. We'll build the connector.

Pick your tool, choose what Claude should do, and get an instant scope and price. No call required.