Industry: marketing agencies
How a marketing agency connects its stack to Claude with read-write
Your agency runs campaigns, client CRM, project management, and reporting across many accounts. We build and maintain custom MCP connectors so Claude can read and write across that stack, with scoped permissions matched to what each login already has.
How can a marketing agency connect its stack to Claude with read-write?
A marketing agency connects its stack to Claude with custom MCP connectors we build for each tool you run. Each connector exposes read tools and scoped write tools for one platform, so Claude can pull campaign, CRM, project, and reporting data and write back updates across your client accounts inside Claude.
Most of an account manager's day is spread across a CRM, an email or lifecycle platform, a project tracker, and a chat tool, with the same context retyped in each one. Connecting that stack to Claude means you brief it once and let it read the current state and draft the next action in the right system. The connectors inherit your existing logins, so Claude never sees a client account your team cannot already reach, and outbound steps wait for a person.
Key takeaways
- One custom connector per tool gives Claude read access plus scoped write tools for that platform.
- Connectors authenticate as your existing seats, so client and workspace boundaries carry over unchanged.
- Create and update flow inside a chat you start; sending campaigns, posting to channels, and deletes are gated behind your confirmation.
- We build and host the servers and maintain them as each platform's API changes, so they keep working in production.
What does read-write across the agency stack actually unlock?
Read-write across the agency stack unlocks the work between the tools. Claude can read a client's deals in your CRM, draft a matching email campaign, create the launch tasks in your project tracker, and prepare a status update, all in one conversation, with each write scoped to the account you are working in.
- Pull a client's campaign performance and CRM activity into one cross-account briefing instead of tab-hopping.
- Draft and update email and lifecycle campaigns from a brief, then hand them to a person to review and send.
- Create and assign launch tasks across client project workspaces from the same plan Claude just wrote.
- Build a client recap or a cross-client rollup from live metrics, then draft the delivery message for your team to approve.
How does access work across many client accounts?
Access works through your own logins. Each connector authenticates as your agency seat or a per-client login, using OAuth where the platform supports it or a scoped API key where it does not, so Claude inherits the same client, workspace, and permission boundaries your team has and never gains more access than the account already holds.
For multi-tenant tools like HubSpot or Klaviyo, that means the connector only sees the portals or stores the login is a member of. For shared platforms, you decide whether Claude connects through a single agency seat or individual logins, and we scope the write tools to match how you want the team to operate.
How do we build and maintain the connectors?
We build and maintain the connectors as a done-for-you service. On a scoping call we map the tools you run, the data Claude should read, and the write actions worth automating. We then build and host a custom MCP server per tool, with separated read and write tools, and keep each one current as the platform changes.
You do not run or maintain any server. That ongoing maintenance is the difference between a one-off script that breaks the next time a platform rotates its API and a connector your agency can rely on across client work. See how we build connectors and how pricing is scoped before you commit.
Connectors for a marketing agency stack
These are the connectors agencies ask for most. Each one gives Claude read access plus scoped write tools for that platform, with outbound and destructive actions gated behind your confirmation.
- Read-write HubSpot connector for Claude
Pull contacts, deals, and campaign data per client portal, then update properties, log activities, and move deals as you brief Claude on each account.
- Read-write Mailchimp connector for Claude
Read audiences, segments, and campaign reports, then draft and update campaigns from Claude before a person reviews and sends.
- Read-write Klaviyo connector for Claude
Inspect lists, flows, and metric data for ecommerce clients, then build and edit segments and campaigns with send gated behind your approval.
- Read-write Asana connector for Claude
See projects, tasks, and due dates across client workspaces, then create tasks, update status, and assign owners straight from a conversation.
- Read-write Slack connector for Claude
Read the channels you have access to and draft updates for client and internal channels, with the actual post gated behind a confirmation.
Running a platform that is not in this list, including an in-house dashboard or reporting tool? See how we build connectors for any software with an API, and how pricing is scoped per tool.
Frequently asked questions
How can a marketing agency connect its stack to Claude?
Does Claude get access to all of our client accounts at once?
Can Claude actually send campaigns and post to client channels?
Which tools in our agency stack can you connect?
How does reporting across many clients work?
Tell us your agency stack. We'll build the connectors.
Book a 30-minute scoping call. We'll map the tools you run across client accounts, the actions Claude should take, and what full read-write would unlock.