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MCP Integrations Justcall
MCP & AI Agent Integration

Justcall
automation.

15 AI agent actions for Justcall — callable from any MCP-compatible runtime, Claude, Cursor, or Cerebral OS workflow. Use Justcall to update contacts, move deals through pipelines, and trigger follow-up sequences automatically. Full governance, audit trail, and dry-run safety on every execution.

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No credit card required
Live in production environments
<200ms median execution
Dry-run before production
Execution trace
live
15
actions
100%
governed
<200ms
latency
15
AI agent actions
8
Read operations
7
Write operations
1
High-risk actions (approval gated)
CRM Justcall is a CRM integration — use it to automate contact management, deals, and pipeline operations from any AI agent or MCP-compatible runtime.
Actions

What you can do
with Justcall.

Every action below is available as an MCP tool and a verb in Cerebral OS — callable from any AI agent, Claude, Cursor, Windsurf, or your own runtime via the BYOA API. All executions are governed, audited, and dry-run safe.

Get Agent
justcall:get_agent
Fetch a single agent by ID with detailed information including stats and current status.
Read Low risk
Get Call
justcall:get_call
Fetch a single call record by ID with all details including duration, recording, and participants.
Read Low risk
Get Contact
justcall:get_contact
Fetch a single contact by ID with all details including phone numbers and custom fields.
Read Low risk
List Agents
justcall:list_agents
List all agents in your JustCall account with their current status and details.
Read Low risk
List Calls
justcall:list_calls
List call records with optional filtering by direction, status, agent, contact, and date range.
Read Low risk
List Contacts
justcall:list_contacts
List contacts with optional search and filtering.
Read Low risk
List Numbers
justcall:list_numbers
List all JustCall phone numbers available to your account.
Read Low risk
List Sms
justcall:list_sms
List SMS messages with optional filtering by direction, contact, phone number, and date range.
Read Low risk
Add Call Note
justcall:add_call_note
Add a note to an existing call record.
Write Medium risk
Create Contact
justcall:create_contact
Create a new contact in JustCall.
Write Medium risk
Delete Contact
justcall:delete_contact
Delete a contact from JustCall. This action cannot be undone.
Write High risk
Make Call
justcall:make_call
Initiate an outbound call through JustCall.
Write Medium risk
Send Sms
justcall:send_sms
Send an SMS message through JustCall.
Write Medium risk
Set Call Disposition
justcall:set_call_disposition
Set the disposition (outcome) for a completed call.
Write Medium risk
Update Contact
justcall:update_contact
Update an existing contact in JustCall.
Write Medium risk
MCP & Runtime API

Call Justcall
from any AI agent.

Any AI agent — Claude, Cursor, LangChain, AutoGen, or your own — can call Justcall actions through the Cerebral OS Runtime API. Governance, credentials, and audit trail fire automatically.

justcall:get_agent READ
# Call via Runtime API
curl
-X POST \
  "https://api.cerebralos.com/v1/runtime/actions/run"
  -H "X-API-Key: YOUR_KEY" \
  -d '{
    "verb": "justcall:get_agent",
    "args": {},
    "execution_id": "agent-001"
  }'
justcall:add_call_note WRITE
# Dry-run first — no production risk
curl
-X POST \
  "https://api.cerebralos.com/v1/runtime/actions/run"
  -H "X-API-Key: YOUR_KEY" \
  -d '{
    "verb": "justcall:add_call_note",
    "args": {},
    "execution_id": "agent-001",
    "metadata": {"dryRun": true}
  }'
Get your Runtime API key at app.cerebralos.com/signup — 1,000 free executions, no credit card required.
AI agent examples

What your AI agent
can do with Justcall.

Real patterns your AI agent can execute via MCP or the Runtime API. Every action governed, dry-run safe, and fully audited.

Trigger
AI agent needs Justcall data
Call justcall:get_agent via MCP or Runtime API
AI processes result and takes next action
Full execution logged to audit trail automatically
Trigger
Workflow needs to write to Justcall
Dry-run validates justcall:add_call_note before execution
Approval gate fires if risk level is high
Action executes with full governance — logged, audited, reversible
Trigger
Lead or deal event
Score with AI
Route to right rep
Trigger outreach sequence
How it works

Every Justcall action
governed end-to-end.

Cerebral OS isn't a connector. It's the execution layer that sits in front of Justcall — adding governance, dry-run safety, and a full audit trail to every operation.

Governance first
Every verb carries a risk classification. High-risk writes require explicit approval gates before they execute in production.
Dry-run safe
Simulate any Justcall action before it touches production. See exactly what would happen before a single real call is made.
Immutable audit trail
Every Justcall action is logged — what ran, what changed, who approved it, when it happened. Full history on every verb, forever.
Connect with

Justcall works best
alongside these.

Build multi-step workflows that connect Justcall to the rest of your stack. All governed. All audited.

Hubspot Salesforce Pipedrive Gmail Slack
Justcall integration

Start free.
No credit card required.

Start free with 1,000 runs — no credit card required. Connect Justcall in minutes, dry-run every action before it touches production, full audit trail on everything.

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