JustCall
Make voice calls and send SMS messages through JustCall for business communications
Connects to JustCall's communication platform to enable voice calls and SMS messaging. Muse can help small business owners reach customers, send notifications, and manage outbound communications through their existing JustCall account.
Try asking Muse: "Send an SMS reminder to my customer about their appointment tomorrow"
Source: Found in the official MCP Registry (host.justcall.mcp/justcall-mcp-server) · First listed September 25, 2026
Last 24 hours
Each bar is one check, every 15 minutes. Green means it answered. Last checked 1 h ago.
Is it safe to connect?
What Muse can see: You sign in to your own account with it, so Muse can reach what that account allows. Read what it asks for before you agree.
Before it acts: Read what Muse plans to do before you approve it, and remove the app from Muse when you stop using it.
musedirectory.ai is not part of Meta. More about how Muse handles your information
How to add it to Muse
JustCall is not in Muse's Connectors list yet, and it needs you to sign in with your JustCall account. Apps that need this kind of sign-in usually cannot be used from a Muse chat yet. Follow it here and we will tell you when it reaches Muse.
https://mcp.justcall.host/mcpNot in Muse's Connectors list yet. Muse can still use it: its page gives you a request to paste into Muse.
Technical details: safety screening, tools, response time and recent checks
Response time at the last check: 981ms. Worked in 100% of checks over 30 days.
Screening · September 25, 2026
Screened, no issues found
Screening looks for known threats and hidden instructions at the time of the check, and runs again weekly and whenever the tool list changes. It cannot see the server's code, so only connect what you need and review what Muse asks to do. How screening works.
Tools
This endpoint requires sign-in before it lists tools, so there is no public tool catalog.
Recent checks
Link
https://mcp.justcall.host/mcpQuestions about JustCall in Muse
How do I connect JustCall to Muse?
JustCall is not in Muse's Connectors list yet, and it needs you to sign in with your JustCall account. Apps that need this kind of sign-in usually cannot be used from a Muse chat yet. Follow it here and we will tell you when it reaches Muse.
Is JustCall working right now?
At the last check (September 28, 2026, 07:46 UTC) the endpoint was working, sign-in needed, answering in 981ms. Over the last 7 days it answered 100% of health checks. It is checked every 15 minutes.
Is JustCall safe to connect to Muse?
It was screened on September 25, 2026 with the result "screened, no issues found". Screening checks the domain against threat feeds and reads the tools for hidden instructions and requests for passwords or card numbers. It cannot see the server's code, so grant only the access you need.
What can JustCall do in Muse?
Make voice calls and send SMS messages through JustCall for business communications For example, you could ask Muse: "Send an SMS reminder to my customer about their appointment tomorrow"
Follow JustCall
Made this app? Claim it or get a status badge
Is this yours?
This listing was added from public sources (Found in the official MCP Registry (host.justcall.mcp/justcall-mcp-server)). If you build JustCall, claim it to correct the details and get your badge.
Paste this on your site or README. It always shows the latest check.
<a href="https://musedirectory.ai/connector/justcall"><img src="https://musedirectory.ai/badge/justcall.svg" alt="JustCall on musedirectory.ai" width="236" height="40"></a>