Does Crixin Voice run locally or as a hosted service?

Both options are published. You can run the package locally, or connect to the hosted endpoint if you would rather not install anything.

How do I install Crixin Voice?

Point your client at the hosted endpoint https://crixin-platform.vercel.app/api/mcp. No local install is needed.

Does Crixin Voice need an API key?

Yes. It reads 5 environment variables from the environment, so you need to supply CRIXIN_API_KEY, TWILIO_ACCOUNT_SID, TWILIO_AUTH_TOKEN, TWILIO_PHONE_NUMBER, DEEPGRAM_API_KEY before the server will start.

What is CRIXIN_API_KEY used for in Crixin Voice?

Crixin platform key (crx_live_...). Set this for hosted mode, no Twilio account needed.

What is TWILIO_ACCOUNT_SID used for in Crixin Voice?

Bring-your-own-Twilio mode: account SID.

Where is the source code for Crixin Voice?

The publisher lists https://github.com/THELAZIZAGROUP/crixin as the source repository.

Is Crixin Voice an official server?

It is published under the namespace com.crixin, which means the publisher proved control of that domain when registering. That confirms who published it, not that it has been reviewed for quality or security.

Which version of Crixin Voice is listed here?

Version 0.7.2, taken from the latest registry entry.

Crixin Voice MCP server

Name: Crixin Voice
Author: crixin

Give your AI a real phone: place calls, send SMS, fetch recordings and transcripts. Local or hosted.

Install this server Visit publisher site View source

72/100?Number 78 of 1,824 in Cloud and DevOps

verified publishersource repositoryupdated recentlyhosted endpointactive entry

How this score is calculated

Local or hosted VERIFIED Cloud and DevOps

Details

Registry name: com.crixin/voice
Publisher: crixin
Version: 0.7.2
Distribution: Local or hosted. both options are published. Install the package to run it yourself, or connect to the publisher's hosted URL and skip the install.
Transports: stdio, streamable-http
Source repository: THELAZIZAGROUP/crixin
Website: https://crixin.com
First published: 2026-09-04
Registry updated: 2026-09-04
Credentials required: 5 environment variables
Schema generation: 2025-12-11

Packages

npm crixin

Version: 0.7.2
Transport: stdio
Runtime: npx

Environment variables
Variable	Required	Secret	Purpose
CRIXIN_API_KEY	Yes	Yes	Crixin platform key (crx_live_...). Set this for hosted mode, no Twilio account needed.
TWILIO_ACCOUNT_SID	Yes	No	Bring-your-own-Twilio mode: account SID.
TWILIO_AUTH_TOKEN	Yes	Yes	Bring-your-own-Twilio mode: auth token.
TWILIO_PHONE_NUMBER	Yes	No	Bring-your-own-Twilio mode: caller number in E.164.
DEEPGRAM_API_KEY	Yes	Yes	Optional in BYO mode, enables transcribe_call locally.

Hosted endpoints

Endpoint 1

URL: https://crixin-platform.vercel.app/api/mcp
Transport: streamable-http
Authentication: api-key

Install Crixin Voice

Pick your client. The configuration below is generated from this server's published package and endpoint data.

Claude Code command line

Configuration file: .mcp.json or ~/.claude.json

Hosted endpoint

claude mcp add voice --transport http https://crixin-platform.vercel.app/api/mcp

Nothing to install. The client connects to the publisher's URL.

Local package (npm)

claude mcp add voice --env CRIXIN_API_KEY=<crixin_api_key> --env TWILIO_ACCOUNT_SID=<twilio_account_sid> --env TWILIO_AUTH_TOKEN=<twilio_auth_token> --env TWILIO_PHONE_NUMBER=<twilio_phone_number> --env DEEPGRAM_API_KEY=<deepgram_api_key> -- npx -y crixin voice mcp

Replace each placeholder with your own value before saving.

Check it worked: Run claude mcp list and check the server reports connected.

Official Claude Code MCP documentation

Cursor IDE

Configuration file: .cursor/mcp.json or ~/.cursor/mcp.json

Hosted endpoint

{
  "mcpServers": {
    "voice": {
      "type": "http",
      "url": "https://crixin-platform.vercel.app/api/mcp"
    }
  }
}

Nothing to install. The client connects to the publisher's URL.

Local package (npm)

{
  "mcpServers": {
    "voice": {
      "command": "npx",
      "args": ["-y", "crixin", "voice", "mcp"],
      "env": {
        "CRIXIN_API_KEY": "<crixin_api_key>",
        "TWILIO_ACCOUNT_SID": "<twilio_account_sid>",
        "TWILIO_AUTH_TOKEN": "<twilio_auth_token>",
        "TWILIO_PHONE_NUMBER": "<twilio_phone_number>",
        "DEEPGRAM_API_KEY": "<deepgram_api_key>"
      }
    }
  }
}

Replace each placeholder with your own value before saving.

Check it worked: The server appears under Settings, then MCP with a green dot.

Official Cursor MCP documentation

Claude Desktop desktop app

Configuration file: ~/Library/Application Support/Claude/claude_desktop_config.json or %APPDATA%\Claude\claude_desktop_config.json

Hosted endpoint

{
  "mcpServers": {
    "voice": {
      "command": "npx",
      "args": ["-y", "mcp-remote", "https://crixin-platform.vercel.app/api/mcp"]
    }
  }
}

Nothing to install. The client connects to the publisher's URL.

Local package (npm)

{
  "mcpServers": {
    "voice": {
      "command": "npx",
      "args": ["-y", "crixin", "voice", "mcp"],
      "env": {
        "CRIXIN_API_KEY": "<crixin_api_key>",
        "TWILIO_ACCOUNT_SID": "<twilio_account_sid>",
        "TWILIO_AUTH_TOKEN": "<twilio_auth_token>",
        "TWILIO_PHONE_NUMBER": "<twilio_phone_number>",
        "DEEPGRAM_API_KEY": "<deepgram_api_key>"
      }
    }
  }
}

Replace each placeholder with your own value before saving.

Quit the app completely and reopen it.

Check it worked: Look for the tools icon in the message composer.

Official Claude Desktop MCP documentation

Visual Studio Code IDE

Configuration file: .vscode/mcp.json or user settings.json under mcp

Hosted endpoint

{
  "servers": {
    "voice": {
      "type": "http",
      "url": "https://crixin-platform.vercel.app/api/mcp"
    }
  }
}

Nothing to install. The client connects to the publisher's URL.

Local package (npm)

{
  "servers": {
    "voice": {
      "type": "stdio",
      "command": "npx",
      "args": ["-y", "crixin", "voice", "mcp"],
      "env": {
        "CRIXIN_API_KEY": "<crixin_api_key>",
        "TWILIO_ACCOUNT_SID": "<twilio_account_sid>",
        "TWILIO_AUTH_TOKEN": "<twilio_auth_token>",
        "TWILIO_PHONE_NUMBER": "<twilio_phone_number>",
        "DEEPGRAM_API_KEY": "<deepgram_api_key>"
      }
    }
  }
}

Replace each placeholder with your own value before saving.

Check it worked: Open the Copilot chat tools picker and confirm the server is listed.

Official Visual Studio Code MCP documentation

Codex CLI command line

Configuration file: ~/.codex/config.toml

Hosted endpoint

codex mcp add voice --transport http https://crixin-platform.vercel.app/api/mcp

Nothing to install. The client connects to the publisher's URL.

Local package (npm)

codex mcp add voice -- npx -y crixin voice mcp

Replace each placeholder with your own value before saving.

Check it worked: Run codex mcp list and check the server is present.

Official Codex CLI MCP documentation

More clients (9), including automation platforms

Cline IDE

Configuration file: cline_mcp_settings.json, reachable from the MCP Servers pane

Hosted endpoint

{
  "mcpServers": {
    "voice": {
      "type": "streamableHttp",
      "url": "https://crixin-platform.vercel.app/api/mcp"
    }
  }
}

Nothing to install. The client connects to the publisher's URL.

Local package (npm)

{
  "mcpServers": {
    "voice": {
      "command": "npx",
      "args": ["-y", "crixin", "voice", "mcp"],
      "env": {
        "CRIXIN_API_KEY": "<crixin_api_key>",
        "TWILIO_ACCOUNT_SID": "<twilio_account_sid>",
        "TWILIO_AUTH_TOKEN": "<twilio_auth_token>",
        "TWILIO_PHONE_NUMBER": "<twilio_phone_number>",
        "DEEPGRAM_API_KEY": "<deepgram_api_key>"
      }
    }
  }
}

Replace each placeholder with your own value before saving.

Check it worked: The server appears in the MCP Servers pane with its tool count.

Official Cline MCP documentation

Goose desktop app

Configuration file: ~/.config/goose/config.yaml

Hosted endpoint

extensions:
  voice:
    type: streamable_http
    uri: https://crixin-platform.vercel.app/api/mcp
    enabled: true

Nothing to install. The client connects to the publisher's URL.

Local package (npm)

extensions:
  voice:
    type: stdio
    cmd: npx
    args: ["-y", "crixin", "voice", "mcp"]
    enabled: true

Replace each placeholder with your own value before saving.

Check it worked: Run goose session and confirm the extension loads.

Official Goose MCP documentation

LangChain agent framework

Install the MCP adapter package and construct a client in code

Hosted endpoint

client = MultiServerMCPClient({
    "voice": {
        "url": "https://crixin-platform.vercel.app/api/mcp",
        "transport": "streamable_http",
    }
})

Nothing to install. The client connects to the publisher's URL.

Local package (npm)

client = MultiServerMCPClient({
    "voice": {
        "command": "npx",
        "args": ["-y", "crixin", "voice", "mcp"],
        "transport": "stdio",
    }
})

Replace each placeholder with your own value before saving.

Check it worked: Print the loaded tool list before running the agent.

Official LangChain MCP documentation

Windsurf IDE

Configuration file: ~/.codeium/windsurf/mcp_config.json

Hosted endpoint

{
  "mcpServers": {
    "voice": {
      "serverUrl": "https://crixin-platform.vercel.app/api/mcp"
    }
  }
}

Nothing to install. The client connects to the publisher's URL.

Local package (npm)

{
  "mcpServers": {
    "voice": {
      "command": "npx",
      "args": ["-y", "crixin", "voice", "mcp"],
      "env": {
        "CRIXIN_API_KEY": "<crixin_api_key>",
        "TWILIO_ACCOUNT_SID": "<twilio_account_sid>",
        "TWILIO_AUTH_TOKEN": "<twilio_auth_token>",
        "TWILIO_PHONE_NUMBER": "<twilio_phone_number>",
        "DEEPGRAM_API_KEY": "<deepgram_api_key>"
      }
    }
  }
}

Replace each placeholder with your own value before saving.

Check it worked: The server appears in the Cascade plugin list.

Official Windsurf MCP documentation

Zed IDE

Configuration file: ~/.config/zed/settings.json

Local package (npm)

{
  "context_servers": {
    "voice": {
      "command": {
        "path": "npx",
        "args": ["-y", "crixin", "voice", "mcp"]
      }
    }
  }
}

Replace each placeholder with your own value before saving.

Check it worked: The agent panel lists the server under context servers.

Official Zed MCP documentation

Tools

The publisher has not disclosed a tool manifest. The tool list can only be seen by connecting to the server, which this catalogue does not do on the publisher's behalf.

Command line alternative

None found. The published package declares no executable and no matching Homebrew formula exists, so the MCP server appears to be the only route. This is a negative result from automated checks, not a statement from the publisher.

Repository signals

Not checked yet. Stars, licence, language and last commit date are read from the source host, and that pass has not run against this record.

Security, privacy and enterprise use

The publisher's website links no privacy policy, terms, security page or enterprise information that could be found automatically. It may still exist somewhere less obvious on their site.

Publisher

Website: crixin.com
Profiles: github
Community: no subreddit linked from the publisher's site

Review platforms

CAPTERRA G2 OMR TRUSTPILOT

Ratings are not shown. G2, Trustpilot and Capterra all prohibit republishing their scores without a licence, and marking up a borrowed rating as our own would breach search engine policy. These are profile links only, and a profile may not exist for every publisher.

Frequently asked questions

What does the Crixin Voice MCP server do?: Give your AI a real phone: place calls, send SMS, fetch recordings and transcripts. Local or hosted.
Does Crixin Voice run locally or as a hosted service?: Both options are published. You can run the package locally, or connect to the hosted endpoint if you would rather not install anything.
How do I install Crixin Voice?: Point your client at the hosted endpoint https://crixin-platform.vercel.app/api/mcp. No local install is needed.
Does Crixin Voice need an API key?: Yes. It reads 5 environment variables from the environment, so you need to supply CRIXIN_API_KEY, TWILIO_ACCOUNT_SID, TWILIO_AUTH_TOKEN, TWILIO_PHONE_NUMBER, DEEPGRAM_API_KEY before the server will start.
What is CRIXIN_API_KEY used for in Crixin Voice?: Crixin platform key (crx_live_...). Set this for hosted mode, no Twilio account needed.
What is TWILIO_ACCOUNT_SID used for in Crixin Voice?: Bring-your-own-Twilio mode: account SID.
Which transports does Crixin Voice support?: stdio and streamable HTTP.
Where is the source code for Crixin Voice?: The publisher lists https://github.com/THELAZIZAGROUP/crixin as the source repository.
Is Crixin Voice an official server?: It is published under the namespace com.crixin, which means the publisher proved control of that domain when registering. That confirms who published it, not that it has been reviewed for quality or security.
Which version of Crixin Voice is listed here?: Version 0.7.2, taken from the latest registry entry.

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Crixin Voice MCP server

Details

Packages

npm crixin

Hosted endpoints

Endpoint 1

Install Crixin Voice

Claude Code command line

Cursor IDE

Claude Desktop desktop app

Visual Studio Code IDE

Codex CLI command line

ChatGPT web app

Cline IDE

Goose desktop app

LangChain agent framework

Make automation platform

n8n automation platform

Windsurf IDE

Zapier automation platform

Zed IDE

Tools

Command line alternative

Repository signals

Security, privacy and enterprise use

Publisher

Review platforms

Frequently asked questions

Store Builder

Factry Historian MCP

ApyHub Utility Tools (US)

DFX Real Estate Intelligence

KSail

devcontainer-mcp

AgentSite

Newsmind

Details

Packages

npm crixin

Hosted endpoints

Endpoint 1

Install Crixin Voice

Claude Code command line

Cursor IDE

Claude Desktop desktop app

Visual Studio Code IDE

Codex CLI command line

ChatGPT web app

Cline IDE

Goose desktop app

LangChain agent framework

Make automation platform

n8n automation platform

Windsurf IDE

Zapier automation platform

Zed IDE

Tools

Command line alternative

Repository signals

Security, privacy and enterprise use

Publisher

Review platforms

Frequently asked questions

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