check_in_attendee — Send16 MCP Tool Read-only
check_in_attendee
(check in attendee) is one of 87 tools on the
Send16
MCP server. Connect the server and your client discovers it on the handshake.
by client
How to call check_in_attendee from your client
- Claude Code Send16 check_in_attendee run in your project directory
- Claude Desktop Send16 check_in_attendee ~/Library/Application Support/Claude/claude_desktop_config.json
- Cursor Send16 check_in_attendee ~/.cursor/mcp.json
- VS Code Send16 check_in_attendee .vscode/mcp.json
- Zed Send16 check_in_attendee ~/.config/zed/settings.json
- Windsurf Send16 check_in_attendee ~/.codeium/windsurf/mcp_config.json
- Cline Send16 check_in_attendee ~/Library/Application Support/Code/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json
- Gemini CLI Send16 check_in_attendee ~/.gemini/settings.json
- Grok Send16 check_in_attendee .mcp.json (in your project root)
- ChatGPT Send16 check_in_attendee Settings → Connectors → Advanced → Developer mode
- Claude.ai Send16 check_in_attendee Settings → Connectors → Add custom connector
- LangChain Send16 check_in_attendee pip install langchain-mcp-adapters
Fastest route
claude mcp add --transport http send16 https://mcp.send16.comOther tools on this server
- whoami
- send_email
- send_campaign_test
- create_campaign
- design_email_template
- list_campaigns
- create_contact
- search_contacts
- list_contacts
- import_contacts
- list_domains
- check_domain_health
- get_campaign_stats
- get_deliverability_status
- list_automations
- get_automation
- enroll_in_automation
- send_event
- list_templates
- save_template
- list_workspace_templates
- send_template_test
- get_template
- render_email_content
- add_domain
- pre_send_review
- generate_email_from_url
- list_messages
- get_message
- get_message_events
- list_convos
- get_convo
- send_reply
- mark_convo_read
- update_convo
- add_convo_note
- screener_decide
- list_inbox_counts
- list_topics
- create_topic
- update_topic
- delete_topic
- list_actions
- get_action
- create_action
- update_action
- delete_action
- list_audiences
- create_audience
- add_contacts_to_audience
- remove_contact_from_audience
- delete_audience
- list_segments
- preview_segment
- list_events
- get_event_insights
- list_event_registrations
- register_for_event
- update_contact
- delete_contact
- get_contact_timeline
- get_contact_health_score
- send_broadcast
- schedule_campaign
- update_campaign
- pause_campaign
- resume_campaign
- duplicate_campaign
- delete_campaign
- preview_campaign_recipients
- activate_automation
- pause_automation
- get_automation_stats
- list_automation_enrollments
- list_workspaces
- get_workspace
- get_brand
- update_brand
- get_workspace_usage
- list_suppressions
- add_suppression
- remove_suppression
- list_webhooks
- create_webhook
- delete_webhook
- regenerate_webhook_secret
This list was read from the server itself, by connecting to it and calling tools/list on 5 November 2026. It is what
the server actually exposes, not what its listing claims.
Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. The registry stores tool names only; connect the server for its live schemas.