JustCall Integration for AI Agents
Connect your AI agent to 88 JustCall actions via MCP, A2A, or SDK, with agent authentication, tool-calling execution, and security built-in, plus 24 events to subscribe to.
JustCall AI Agent Actions
88 production-ready actions for your agent to do more on JustCall.
88 Actions
List Calls AI Data - Retrieve AI analysis data for calls including sentiment, scores, and summaries.
Get Call AI Data - Retrieve AI analysis data for a specific call.
List Meetings AI Data - Retrieve AI analysis data for meetings.
Get Meeting AI Data - Retrieve AI analysis data for a specific meeting.
List Available Slots - Retrieve available scheduling slots for appointments.
Create Appointment - Create a new appointment in the calendar.
Get Appointment - Retrieve details of a specific appointment by ID.
List Calls - Retrieve a paginated list of all calls with optional filtering by date, agent, direction, type, and more.
Get Call - Retrieve details of a specific call by its ID.
Update Call - Update notes or rating for a specific call.
Get Call Journey - Retrieve the sequential journey stages showing how a call was routed.
Get Call Voice Agent Data - Retrieve AI Voice Agent insights and actions executed during a call.
Download Call Recording - Download the MP3 recording file for a completed call.
Get Account Analytics - Retrieve account-level call analytics including SLA, connect rate, and durations.
Get Agent Analytics - Retrieve per-agent call performance metrics.
Get Number Analytics - Retrieve per-phone-number call metrics.
List Contacts - Retrieve a paginated list of all contacts with optional filtering.
Get Contact - Retrieve details of a specific contact by ID.
Create Contact - Create a new contact with name, phone, email, and other details.
Update Contact - Update an existing contact's information.
Update Contact Status - Add or remove a contact from blacklist, DND, or DNM lists.
Delete Contact - Delete a contact by ID or phone number.
Bulk Add Contacts To Blacklist - Bulk add contacts to DND, DNM, or blacklist.
List Blacklisted Contacts - Retrieve all contacts on the blacklist, DND, or DNM lists.
Get Unified Credentials - Get the current JustCall connection's unified credentials and identity.
IAM Auth Test - Validate the current JustCall API key/secret pair and return the raw, unmapped /v2.1/users response (first page, single record). Use this when troubleshooting credential validity or API connectivity, not for normal app flows.
List Unified Groups - List unified groups in JustCall.
Get Unified Group - Get a unified JustCall group by ID.
List Unified Organizations - List unified organizations in JustCall.
Get Unified Organization - Get a unified JustCall organization by ID.
List Unified Resource Types - List unified resource types in JustCall.
List Unified Resource Users - List unified resource users in JustCall.
List Unified Roles - List unified roles in JustCall.
Get Unified Role - Get a unified JustCall role by ID.
List Unified Users - List unified users in JustCall.
Get Unified User - Get a unified JustCall user by ID.
List Phone Numbers - Retrieve a paginated list of all phone numbers in the account.
Get Phone Number - Retrieve details of a specific phone number by ID.
Detect Incoming Number - Detect phone number type (Mobile, Landline, VOIP) and carrier.
List Sales Dialer Calls - Retrieve a paginated list of all Sales Dialer calls.
Get Sales Dialer Call - Retrieve details of a specific Sales Dialer call by ID.
List Campaigns - Retrieve all Sales Dialer campaigns.
Get Campaign - Retrieve details of a specific Sales Dialer campaign.
Create Campaign - Create a new Sales Dialer campaign.
Update Campaign - Update an existing Sales Dialer campaign.
List Campaign Contacts - Retrieve all contacts in a specific campaign.
Add Contact To Campaign - Add a contact to a Sales Dialer campaign.
Remove Contact From Campaign - Remove a contact from a Sales Dialer campaign.
List Sales Dialer Contacts - Retrieve all Sales Dialer contacts.
Get Sales Dialer Contact - Retrieve details of a specific Sales Dialer contact.
Create Sales Dialer Contact - Create a new Sales Dialer contact.
Update Sales Dialer Contact - Update an existing Sales Dialer contact.
Delete Sales Dialer Contact - Delete a Sales Dialer contact by ID.
Bulk Import Sales Dialer Contacts - Bulk import contacts to the Sales Dialer.
Get Bulk Import Status - Check the progress of a bulk contact import.
Bulk Add Contacts To DNCA - Bulk add contacts to the Do Not Call Again list. contact_ids and contact_numbers are mutually exclusive — provide only one per request.
List Sales Dialer Contact Custom Fields - Retrieve the custom field schema for Sales Dialer contacts.
Get Sales Dialer Agent Analytics - Retrieve agent and campaign performance metrics for Sales Dialer.
List Texts - Retrieve a paginated list of all SMS and MMS messages.
Get Text - Retrieve details of a specific text message by ID.
Send SMS/MMS - Send an SMS or MMS message to a phone number.
Check Reply - Check the most recent inbound SMS reply from a contact.
List Tags - Retrieve all SMS tags in the account.
Get Tag - Retrieve details of a specific SMS tag.
Create Tag - Create a new tag for SMS categorization.
Delete Tag - Delete an SMS tag by ID.
List Threads - Retrieve all SMS conversation threads.
Get Thread - Retrieve a specific SMS conversation thread with its messages.
Add Tag To Thread - Add a tag to a JustCall number and contact conversation thread.
Remove Tag From Thread - Remove a tag from a conversation thread.
List Users - Retrieve a paginated list of all agents/users in the account.
Get User - Retrieve details of a specific user/agent by ID.
Update User Availability - Update an agent's availability status for call routing.
List User Groups - Retrieve all user groups (teams) in the account.
Get User Group - Retrieve details of a specific user group by ID.
Create User Group - Create a new user group (team) in the account.
Update User Group - Update an existing user group's name, extension, or members.
Delete User Group - Delete a user group by ID.
List Voice Agents - Retrieve all configured AI Voice Agents.
Initiate Call - Trigger an outbound call from an AI Voice Agent.
List Subscribed Webhooks - Retrieve all subscribed webhook events.
Add URL To Webhook - Subscribe a URL to receive webhook events.
Remove URL From Webhook - Remove a URL from a webhook subscription.
List Messages - Retrieve a paginated list of all WhatsApp messages.
Get Message - Retrieve details of a specific WhatsApp message by ID.
Send Message - Send a text, template, or media WhatsApp message.
List Templates - Retrieve all approved WhatsApp message templates.
Check Message Reply - Check if a WhatsApp reply has been received from a contact.
JustCall Webhook Events
24 real-time JustCall events your AI agent can subscribe to.
24 Events
- Webhook URL Validation Acknowledges JustCall's webhook URL validation request.
- Call Incoming Webhook Processes JustCall call.incoming webhook events, fired when an incoming call starts ringing.
- Call Initiated Webhook Processes JustCall call.initiated webhook events, fired when an outgoing call is initiated.
- Call Answered Webhook Processes JustCall call.answered webhook events, fired when a call is answered.
- Call Enters Queue Webhook Processes JustCall call.enters_queue webhook events, fired when a call enters a call queue (top-level queue_position gives its place).
- Call Exits Queue Webhook Processes JustCall call.exits_queue webhook events, fired when a call leaves a call queue (top-level exit_reason explains why).
- Call Completed Webhook Processes JustCall call.completed webhook events, fired when a call ends.
- Call Missed Webhook Processes JustCall call.missed webhook events, fired when a call is missed.
- Call Voicemail Webhook Processes JustCall call.voicemail webhook events, fired when a caller leaves a voicemail.
- Call Updated Webhook Processes JustCall call.updated webhook events, fired when fields on an existing call are updated (partial payload with the call id and changed fields only).
- Call AI Generated Webhook Processes JustCall jc.call_ai_generated webhook events, fired when JustCall AI finishes generating insights (summary, sentiment, action items) for a call.
- Call AI Voice Agent Webhook Processes JustCall call.ai_voice_agent webhook events, fired when an AI voice agent executes actions on a call.
- SMS Sent or Received Webhook Processes JustCall sms.sent_received webhook events, fired when an SMS is sent or received.
- SMS Sent Webhook Processes JustCall sms.sent webhook events, fired when an SMS is sent.
- SMS Received Webhook Processes JustCall sms.received webhook events, fired when an SMS is received.
- SMS Status Updated Webhook Processes JustCall sms.status_updated webhook events, fired when the delivery status of an SMS changes.
- WhatsApp Message Sent Webhook Processes JustCall whatsapp.message_sent webhook events, fired when a WhatsApp message is sent.
- WhatsApp Message Received Webhook Processes JustCall whatsapp.message_received webhook events, fired when a WhatsApp message is received.
- WhatsApp Message Status Updated Webhook Processes JustCall whatsapp.message_status_updated webhook events, fired when the delivery status of a WhatsApp message changes.
- Sales Dialer Call Completed Webhook Processes JustCall sd.call_completed webhook events, fired when a Sales Dialer campaign call ends (requires the Pro plan or above).
- Sales Dialer Call Updated Webhook Processes JustCall sd.call_updated webhook events, fired when fields on a Sales Dialer call are updated (partial payload; requires the Pro plan or above).
- Sales Dialer Call AI Generated Webhook Processes JustCall sd.call_ai_generated webhook events, fired when JustCall AI finishes generating insights for a Sales Dialer call (requires the Pro plan or above).
- Contact Status Updated Webhook Processes JustCall jc.contact_status_updated webhook events, fired when a contact is added to or removed from the DND, DNM or Blacklist lists.
- Appointment Scheduled Webhook Processes JustCall appointment.scheduled webhook events, fired when an appointment is booked on a JustCall calendar.
JustCall AI Agent Use Cases
Connect your AI agent to JustCall and help your team scale the sales operations they run by hand today.
Post-Demo Follow-Up
Use StackOne to connect your AI agent to your CRM, email, and calendar tools to automate post-demo follow-up.
View Deal Risk Scoring
Use StackOne to connect your AI agent to your CRM, email, and calendar tools to automate deal risk scoring and pipeline alerts.
View Outbound Prospecting
Use StackOne to connect your AI agent to your CRM, sales engagement, and messaging tools to automate outbound prospecting.
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Integration Infrastructure for JustCall AI Agents
"What impressed us most about StackOne is its ambition and clarity. They're creating infrastructure that modern software and the entire AI agent ecosystem can rely on. The depth of secure integrations, the pace of delivery, and the team's foresight into AI's future uniquely position StackOne to redefine this category."
Luna Schmid, Partner at GV
"We've been impressed by how quickly and deeply StackOne integrates with complex enterprise systems -- and now, with their focus on agent-to-agent interoperability, they're unlocking even more powerful use cases for customers. StackOne delivers all of the above in a universal layer -- without compromise."
Barbry McGann, SVP at Workday Ventures
Product Teams Love Building Agent Integrations With StackOne
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JustCall AI agent integration resources
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Agentic Context Engineering: Why AI Agents Kill Their Own Context Windows
AI agents exceed their context windows without knowing it. Six failure patterns and seven survival architectures for agentic context engineering.
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MCP Code Mode: Keeping Tool Responses Out of Agent Context
Anthropic's code_execution processes data already in context. Custom MCP code mode keeps raw tool responses in a sandbox. 14K tokens vs 500.
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Comparing BM25, TF-IDF, and Hybrid Search for MCP Tool Discovery
Benchmarking BM25, TF-IDF, and hybrid search for MCP tool discovery across 916 tools. The 80/20 TF-IDF/BM25 hybrid hits 21% Top-1 accuracy in under 1ms.
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JustCall integration FAQ
Do I need to create my own auth app to connect JustCall to StackOne?
No, you don't need an auth app. JustCall uses an API Key and API Secret pair instead. Generate both in JustCall under Settings > APIs and Webhooks, then paste them into the StackOne dashboard auth config for the JustCall connector. See the JustCall setup docs.
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