# JustCall ID: 02-justcall Page: https://gtmmcps.com/tools/02-justcall JSON: https://gtmmcps.com/data/tools/02-justcall.json Documentation references: https://gtmmcps.com/docs/02-justcall/ Category: Engagement & Outbound MCP support: official Testing: RESEARCHED API access: paid Last checked: 2026-09-07 Endpoint check: not-probed; date: Not recorded A cloud phone, SMS and WhatsApp platform for sales and support teams built by SaaS Labs, with a sales dialer, CRM integrations and AI voice agents, plus a hosted MCP server that lets an assistant read and act on calls, messages, contacts, numbers and users. ## MCP links - https://mcp.justcall.host/mcp - https://developer.justcall.io/docs/mcp - https://github.com/saaslabsco/justcall-mcp-server ## Sources - https://developer.justcall.io/docs/mcp - https://justcall.io/pricing/ - https://github.com/saaslabsco/justcall-mcp-server ## Research notes Verified 2026-09-07: POST of an MCP initialize to https://mcp.justcall.host/mcp returned HTTP 401 Unauthorized, confirming a live auth-gated server, and the endpoint is printed verbatim in JustCall's own developer documentation, which states "JustCall hosts a remote MCP server at https://mcp.justcall.host/mcp". Note the off-domain host: the server lives on justcall.host, not justcall.io, which is the same discovery trap as Dialpad's karehq.com. The vendor's own MCP doc page carries an "Updated 11 months ago" stamp, so it predates the current MCP specification revisions by a wide margin and the transport details should be re-verified before a bench test. The public GitHub repository is under the saaslabsco organisation, which is JustCall's parent company, so it is first-party rather than community. The docs frame the server partly as documentation access for AI code editors and partly as live account access, and the example prompts shown include sending an SMS, which means write access is in scope and an unattended agent can message real prospects. ## Named capabilities Tool names below are reported by sources. Their presence is not a successful call. - add_contacts_blacklist: Add one or more contacts to the JustCall account; evidence: source; party: third-party - add_salesdialer_campaign_contact: Add contact to a specific Sales Dialer campaign identified by Campaign ID; evidence: source; party: third-party - add_salesdialer_contacts_dnca: Add one or more contacts to the Sales Dialer\; evidence: source; party: third-party - check_whatsapp_message_reply: Check for the most recent inbound whatsapp message from a contact number; evidence: source; party: third-party - create_appointment: Schedule a new appointment on a specific JustCall calendar; evidence: source; party: third-party - create_contact: Create a new contact in the JustCall account; evidence: source; party: third-party - create_salesdialer_campaign: Create a new Sales Dialer campaign in the JustCall account; evidence: source; party: third-party - create_salesdialer_contact: Create a new contact in Sales Dialer; evidence: source; party: third-party - create_voice_agent_call: Initiate an outbound call from a configured AI voice agent to a contact number; evidence: source; party: third-party - create_webhook: Create a new webhook endpoint to receive real-time notifications; evidence: source; party: third-party - get_account_analytics: Retrieve aggregated call analytics at the JustCall account level; evidence: source; party: third-party - get_agent_analytics: Retrieve call performance analytics for a specific agent identified by Agent ID; evidence: source; party: third-party - get_appointment: Retrieve details of a specific appointment by its ID; evidence: source; party: third-party - get_call_ai_analysis: Retrieve AI-generated analysis for a specific call by Call ID associated with either JustCall or Sales Dialer; evidence: source; party: third-party - get_contact: Retrieve detailed information for a specific contact by ID; evidence: source; party: third-party - get_meeting_ai_analysis: Retrieve AI-generated analysis for a specific meeting identified by Instance ID; evidence: source; party: third-party - get_number: Retrieve detailed information for a specific phone number by ID; evidence: source; party: third-party - get_number_analytics: Retrieve call analytics for a specific JustCall phone number; evidence: source; party: third-party - get_salesdialer_agent_analytics: Retrieve call performance analytics of a specific agent for a Sales Dialer campaign; evidence: source; party: third-party - get_salesdialer_call: Retrieve detailed information for a specific Sales Dialer call by Call ID; evidence: source; party: third-party - get_salesdialer_campaign: Retrieve detailed information for a specific Sales Dialer campaign by ID; evidence: source; party: third-party - get_salesdialer_contact: Retrieve detailed information for a specific contact in Sales Dialer by ID; evidence: source; party: third-party - get_user: Retrieve detailed information for a specific user by ID; evidence: source; party: third-party - get_user_group: Retrieve detailed information for a specific user group by ID; evidence: source; party: third-party - get_whatsapp_message: Retrieve detailed information for a specific whatsapp message by ID; evidence: source; party: third-party - import_salesdialer_contacts: Import multiple contacts into Sales Dialer or a campaign in bulk; evidence: source; party: third-party - import_salesdialer_contacts_status: Check the status of a bulk import job/request by its batch ID; evidence: source; party: third-party - list_appointment_slots: Retrieve all available time slots for appointments on a specific JustCall calendar; evidence: source; party: third-party - list_blacklist_contacts: Retrieve all blacklist contacts from the JustCall account; evidence: source; party: third-party - list_calls_ai_analysis: Retrieve AI-generated analysis for all calls associated with either JustCall or Sales Dialer; evidence: source; party: third-party - list_contacts: Retrieve all contacts associated with the JustCall account; evidence: source; party: third-party - list_meetings_ai_analysis: Retrieve AI-generated analysis for recorded meetings; evidence: source; party: third-party - list_numbers: Retrieve all phone numbers associated with the JustCall account; evidence: source; party: third-party - list_salesdialer_calls: Retrieve all calls made via the Sales Dialer in JustCall; evidence: source; party: third-party - list_salesdialer_campaign_contacts: Retrieve all contacts in a specific Sales Dialer campaign identified by Campaign ID; evidence: source; party: third-party - list_salesdialer_campaigns: Retrieve all Sales Dialer campaigns in the JustCall account; evidence: source; party: third-party - list_salesdialer_contacts: Retrieve all contacts from Sales Dialer in the JustCall account; evidence: source; party: third-party - list_salesdialer_custom_fields: Fetch all custom contact fields defined in your Sales Dialer account and their details; evidence: source; party: third-party - list_user_groups: Retrieve all user groups defined in the JustCall account; evidence: source; party: third-party - list_users: Retrieve all users associated with the JustCall account; evidence: source; party: third-party - list_voice_agents: Retrieve all AI voice agents associated with the JustCall account; evidence: source; party: third-party - list_webhooks: Retrieve all configured webhooks; evidence: source; party: third-party - list_whatsapp_messages: Retrieve all whatsapp messages associated with the JustCall account; evidence: source; party: third-party - list_whatsapp_templates: Retrieve all whatsapp message templates available in the JustCall account; evidence: source; party: third-party - send_whatsapp_message: Send a new whatsapp message to a contact number; evidence: source; party: third-party - update_contact: Update/modify details of an existing contact in the JustCall account; evidence: source; party: third-party - update_contact_status: Add or remove a contact from DND/DNM/Blacklist lists in the JustCall account; evidence: source; party: third-party - update_salesdialer_campaign: Update/modify details of an existing Sales Dialer campaign in the JustCall account; evidence: source; party: third-party - update_salesdialer_contact: Update/modify details of an existing contact in Sales Dialer identified by ID; evidence: source; party: third-party - update_user_availability: Update a user; evidence: source; party: third-party ## CLI evidence Status: none-found Read current vendor documentation before configuring or running commands.