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API Reference
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CRM

Sales CRM for inside sales teams

Access and manage your Close CRM data with AI. Search leads, contacts, and activities, manage opportunities and pipelines, create and update records, and automate sales workflows through natural language.

Adding Close provisions three things in your zone: an upstream resource pointing at https://mcp.close.com/mcp (kept inside Keycard), a Keycard MCP Gateway URL - the downstream resource - that you install in Cursor, Claude Code, or any MCP client, and a provider for token exchange with Close’s OAuth issuer.

When your AI client makes a tool call, it sends a Keycard-issued access token to the gateway URL. Keycard’s STS exchanges that token for an upstream Close token, the gateway calls the upstream MCP, and the response is proxied back. Your zone’s identity provider, access policies, and audit log apply to every call - the upstream credential never leaves Keycard. Each call is recorded in the audit log with the user identity, the resource accessed, and the policy decision.

Tools the upstream server exposes through the Keycard MCP Gateway.

Close exposes 30 tools through the gateway:

activity_search
Search activities ordered by date descending
aggregation
Run aggregations on activities like emails and calls
close_product_knowledge_search
Search Close product docs and knowledge base
fetch
Get any object by its ID
fetch_contact
Get a contact by ID with full details
fetch_email_template
Get an email template by ID
fetch_lead
Get a lead (company) by ID
fetch_lead_smart_view
Get a lead smart view (saved search) by ID
Get a lead status by ID
Fetch a lead status by ID
fetch_opportunity
Get an opportunity by ID with full details
fetch_opportunity_status
Get an opportunity status by ID
fetch_pipeline_and_opportunity_statuses
Get a pipeline with its opportunity statuses
fetch_sms_template
Get an SMS template by ID
find_custom_activities
List active custom activity types
find_email_templates
List or search email templates
find_forms
List all web forms in the organization
find_lead_smart_views
List lead smart views (saved searches)
find_lead_statuses
List lead statuses for the organization
find_opportunities
Search opportunities by lead, user, status, dates
find_pipelines_and_opportunity_statuses
List pipelines and their opportunity statuses
find_scheduling_links
List available scheduling links
find_sms_templates
List or search SMS templates
List or search workflows
List or find workflows
get_fields
List available fields for aggregation queries
lead_search
Search leads and return initial results
list_lead_custom_fields
List all lead custom fields
org_info
Get organization and user info
org_users
List active users in the current organization
paginate_search
Get next page of search results
search
Search across content in the workspace

Add Close to your zone and install the gateway URL into Cursor, Claude Code, or any MCP client.

  1. Open the catalog

    In your zone’s Keycard Console, go to ApplicationsAdd ApplicationExplore MCP Servers.

  2. Find and install Close

    Search for Close in the catalog and click Install.

  3. Connect your development tool

    Once installed, Close appears on the Applications page with a Keycard MCP Gateway URL. Use the Install dropdown to add it to Cursor, Claude Code, or any MCP-compatible client.