A
licenseNot graded
qualityD
maintenanceA Model Context Protocol server implementation that enables AI assistants to interact with RetellAI's voice services for managing calls, agents, phone numbers, and voice options.
212
39
ISC
ClawCall MCP Server
Officialby ClawCall-Dev
Click on "Install Server".
Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state.
In the chat, type
@followed by the MCP server name and your instructions, e.g., "@ClawCall MCP ServerCall 555-0199 and check if my order is ready."
That's it! The server will respond to your query, and you can continue using it as needed.
Here is a step-by-step guide with screenshots.
ClawCall
Make real AI-powered phone calls from any AI agent. ClawCall dials US phone numbers, handles the conversation, and returns the outcome, transcript, and recording when available.
30 calls and 30 minutes free, whichever lasts later. No credit card required.
Hosted MCP connector (recommended)
ClawCall's official remote MCP server is available at:
https://api.clawcall.dev/mcpAdd that URL as a custom connector in Grok Build, ChatGPT, Claude, Codex, or another remote MCP client. The connector uses OAuth 2.1: sign in to ClawCall and approve read/write call access when prompted. No API key is copied into the AI host.
The hosted connector can:
place outbound calls to US phone numbers
navigate phone menus and hold queues
bridge the user into a live call
poll call status and retrieve transcripts and temporary recording URLs
list inbound and outbound call history
end active calls and inspect plan or trial usage
serve ClawCall's calling guide before a call is placed
The Grok Build plugin source is in grok/. Its official xAI marketplace submission is tracked in xai-org/plugin-marketplace#336.
Related MCP server: PhoneBooth MCP Server
Agent skill
Install the ClawCall skill from ClawHub:
openclaw skills install clawcall-devPublished skill: https://clawhub.ai/clawcall-dev/clawcall-dev
Or manually add skill/SKILL.md and its bundled references to your agent's skills directory. The skill uses ClawCall's REST API and persists its low-privilege API key locally.
Legacy local stdio MCP package
The mcp/ directory contains the legacy @clawcall/mcp stdio package for existing local/API-key installations. New integrations should use the hosted OAuth connector above. The legacy package remains documented for compatibility but is not the distribution path submitted to the xAI marketplace.
What it does
Calls US phone numbers over real phone lines
Handles appointments, reservations, order checks, callbacks, office follow-ups, phone menus, and hold queues
Leaves voicemail or takes messages when instructed
Returns call outcomes, transcripts, and recordings
Supports live handoff when identity verification, negotiation, or a real-time decision requires the user
Supports reusable voice, personality, greeting, and inbound reserved-number answering preferences through the product and REST surfaces
Examples
"Call Dr. Rivera's office and confirm my appointment for Tuesday at 2:30."
"Phone the restaurant at +15551234567 and make a reservation for four people Saturday at 7 PM."
"Get me through to a real person at my insurance company."
Links
License
MIT
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Maintenance
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ResponsivenessNo issues
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If you are the server author, to access and configure the admin panel.
Related MCP Connectors
Give AI agents a phone: outbound AI calls that return a summary, transcript, and extracted fields.
Give your AI agent a phone. Place outbound calls to US businesses to ask, book, or confirm.
Give your AI agent a phone: place calls, navigate IVRs, wait on hold, get structured answers.
- DialMCPOAuthcom.dialmcp
Let AI agents place real phone calls from your verified number, with transcripts and recordings.
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- FlicenseNot gradedqualityDmaintenanceEnables AI agents to make real-world phone calls with AI voice technology and provides tools to track call status, transcripts, and summaries. It supports automated communication with both live numbers and simulated businesses for testing and demonstration purposes.-
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- AlicenseNot gradedqualityBmaintenanceEnables AI agents to place VoIP phone calls via Asterisk, play TTS messages, capture DTMF input, and optionally record and transcribe voice responses.MIT
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