Yes. Krokul CRM has a built-in MCP server at https://app.krokul.com/mcp, and Claude connects to it as a custom connector. You sign in to Krokul, choose the company and the permissions, and Claude then reads and writes deals, contacts, tasks and reports with your own role in that company.
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Claude calls the tool client_company_read_debtors and gets the overdue invoices by client company. You ask for a short reminder per client in your own words, review the drafts in the chat and send them from your mail.
After a call you tell Claude what was agreed. It finds the deal with card_read_list, adds a comment with activity_create and sets the next step with task_create. Claude asks you to approve a tool call before it runs, unless you chose Allow always for that tool.
The tools report_conversion and report_stage_duration return stage-to-stage conversion and the average days deals spend in each. Claude puts them side by side and points at the stage where deals stall, using numbers the Krokul server calculated.
Every write tool accepts the flag dryRun. The Krokul server answers with the route and the body it would send and writes nothing, so you can check a bulk update with card_bulk_update before you run it for real.
| Claude | Direction | Krokul | When |
|---|---|---|---|
Read tool call (card_read_list, contact_find, client_company_read_debtors) | Krokul → Claude | Deals, contacts, debtors | When you ask about your data |
Write tool call (task_create, activity_create, card_update_status) | Claude → Krokul | Tasks, comments, deal stages | After you approve the tool call in Claude |
Report tool call (report_dso, report_conversion) | Krokul → Claude | Reports calculated by Krokul | When you ask for analysis |
| Custom connector sign-in (OAuth) | Claude → Krokul | Your user, company and approved permissions | Once, then the token renews itself |
| Tool list | Krokul → Claude | Public API routes allowed by the permissions and your role | Each time Claude connects |
https://app.krokul.com/mcp and click Add.claude mcp add --transport http krokul https://app.krokul.com/mcp./mcp, choose krokul and finish the sign-in in the browser.No. Claude acts as you. Krokul reads your role in the company on every call and limits the tools to the permissions you approved. If an admin lowers your role or removes you from the company, the connection narrows or stops with the next call.
Anthropic offers custom connectors on Free, Pro, Max, Team and Enterprise plans. Free accounts can add one custom connector.
Not through a personal connection. Remove, merge, cancel, archive and refund tools are not offered to it. Write tools that create or change records are available if you approved those permissions.
In Krokul, open your profile and revoke the app in the connected apps block. Access ends at once, and Claude has to ask you to sign in again.
Destructive tools such as remove, merge, cancel, archive and refund stay closed to a Claude connection. Those actions belong to a person in the Krokul interface. Claude works inside one Krokul company per connection.
Tell us which service you use and what should move between it and Krokul. We reply with the way to do it and when it will be ready.
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Claude is a trademark of Anthropic, PBC. Krokul is not affiliated with Anthropic.