Claude security directory

Close

Published by Close

High risk

The Close MCP server is a secure, standardized interface that lets Claude directly access and interact with your Close data. Core functionality with Claude: • Connects Close to Claude via the Model Context Protocol so Claude can use Close as a trusted system of record. • Read data (e.g., leads, contacts, opportunities, activities) based on your Close permissions. • Optionally write data - you can allow only safe writes (e.g., create a lead) or full writes (e.g., edit/de...

Security assessment

Plutonium assessed this web connector for permissions, capabilities, and security-relevant behavior.

  • Reads your private information: This connector can read data the connected service holds about you - documents, messages, contact lists, source code, customer records, or saved profile details - and pass it back to the AI.
  • Can send messages as you: This connector can post messages, emails, or chat replies on your behalf. Recipients will believe the message came from you, which makes phishing or social-engineering risks higher.
  • Can change or update your information: This connector can edit, rename, overwrite, or otherwise modify records in the connected service. If a request gets manipulated, your data could be altered without you noticing.
  • Can permanently delete data: This connector can erase records, files, or accounts. Once deleted the data may be unrecoverable - even an accidental request can cause permanent loss.
  • Sends your data to outside companies: Anything you share with this connector flows through one or more third-party services. Those companies see, store, and may use the data according to their own policies.

Available capabilities

This add-on exposes 55 tools or capabilities.

  • mcp.read
  • activity_search
  • fetch_contact
  • fetch_email_template
  • fetch_lead_smart_view
  • fetch_lead_status
  • fetch_lead
  • fetch_opportunity_status
  • fetch_opportunity
  • fetch_pipeline_and_opportunity_statuses
  • fetch_sms_template
  • find_email_templates
  • find_lead_smart_views
  • find_lead_statuses
  • find_opportunities
  • find_pipelines_and_opportunity_statuses
  • find_scheduling_links
  • find_sms_templates
  • find_workflows
  • lead_search
  • org_info
  • org_users
  • paginate_search
  • perform_search

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