Is mcp-google safe to use?

mcp-google has a security risk score of 100/100 (CRITICAL risk). Our security analysis detected 181 findings. Review the detailed security assessment below to understand the specific risks before installation.

What are the security risks of mcp-google?

Based on our automated security analysis, mcp-google presents critical risk level. The extension is analyzed for malware patterns, secret exposure, network communications, permissions, and supply chain vulnerabilities.

How is the security score calculated?

Risky Plugins calculates security scores using weighted categories: severity of findings (25 points max), malware detections (35 points), secret exposure (28 points), network communications (10 points), and obfuscation (10 points). Scores range from 0-100, with higher scores indicating greater risk.

What does CRITICAL, HIGH, MEDIUM, LOW, MINIMAL risk mean?

CRITICAL (80-100): Severe security issues like malware. HIGH (60-79): Significant vulnerabilities. MEDIUM (40-59): Moderate security concerns. LOW (20-39): Minor issues. MINIMAL (0-19): Very low risk. Always review findings before installing any extension.

Is "mcp-google" on MCP Registry Safe to Install?

Name: mcp-google
Availability: InStock
Author: 199bio

199bio · mcp · v2.3.0

The ONLY comprehensive MCP server for Google Workspace - Calendar, Contacts, and Gmail management in Claude, Cursor, Windsurf

Risk Assessment

Analyzed

100

out of 100

CRITICAL

181 security findings detected across all analyzers

MCP server analyzed for tool poisoning, prompt injection, and data exfiltration

Severity Breakdown

Critical

High

121

Medium

Low

Info

Finding Categories

Malware Signatures

Secrets

Network

105

IoC Indicators

YARA Rules Matched

8 rules(31 hits)

UsingCommandLineArguments postinstall file manipulation postinstall network communication postinstall file download postinstall system command postinstall obfuscation credential env files postinstall persistence mechanism

MCP Server Analysis

MCP servers expose tools and resources to AI assistants. Unlike browser extensions, they run as standalone processes with direct system access. Tool definitions are analyzed for prompt injection, data exfiltration, and tool poisoning patterns.

About This Extension

The ONLY comprehensive MCP server for Google Workspace - Calendar, Contacts, and Gmail management in Claude, Cursor, Windsurf

Detailed Findings

74 total

YARA Rule Matches

8 rules

Indicators of Compromise

Network indicators, suspicious strings, and potential IoCs extracted during analysis

URLs

Domains

Strings

105

All Indicators · 105

Domain

detected Domain: response.data.id

XIOC detected Domain: response.data.id

extracted_from_files

Domain

detected Domain: events.map

XIOC detected Domain: events.map

extracted_from_files

URL

detected URL: https://www.googleapis.com/batch/calendar/v3

XIOC detected URL: https://www.googleapis.com/batch/calendar/v3

extracted_from_files

URL

detected URL: https://github.com/199-mcp/mcp-google.git

XIOC detected URL: https://github.com/199-mcp/mcp-google.git

extracted_from_files

URL

detected URL: https://github.com/199-mcp/mcp-google/issues

XIOC detected URL: https://github.com/199-mcp/mcp-google/issues

extracted_from_files

URL

detected URL: https://www.googleapis.com/auth/contacts

XIOC detected URL: https://www.googleapis.com/auth/contacts

extracted_from_files

URL

detected URL: https://www.googleapis.com/auth/gmail.modify

XIOC detected URL: https://www.googleapis.com/auth/gmail.modify

extracted_from_files

URL

detected URL: https://www.googleapis.com/auth/gmail.send

XIOC detected URL: https://www.googleapis.com/auth/gmail.send

extracted_from_files

URL

detected URL: https://www.googleapis.com/auth/gmail.labels

XIOC detected URL: https://www.googleapis.com/auth/gmail.labels

extracted_from_files

URL

detected URL: https://console.cloud.google.com/)

XIOC detected URL: https://console.cloud.google.com/)

extracted_from_files

URL

detected URL: https://www.googleapis.com/auth/calendar',

XIOC detected URL: https://www.googleapis.com/auth/calendar',

extracted_from_files

URL

detected URL: https://www.googleapis.com/auth/contacts',

XIOC detected URL: https://www.googleapis.com/auth/contacts',

extracted_from_files

URL

detected URL: https://console.cloud.google.com/apis/library/calendar-json.googleapis.com)

XIOC detected URL: https://console.cloud.google.com/apis/library/calendar-json.googleapis.com)

extracted_from_files

URL

detected URL: https://console.cloud.google.com/apis/library/people.googleapis.com)

XIOC detected URL: https://console.cloud.google.com/apis/library/people.googleapis.com)

extracted_from_files

URL

detected URL: https://github.com/biobook)**

XIOC detected URL: https://github.com/biobook)**

extracted_from_files

URL

detected URL: https://github.com/199-biotechnologies)**

XIOC detected URL: https://github.com/199-biotechnologies)**

extracted_from_files

URL

detected URL: https://github.com/nspady/google-calendar-mcp)

XIOC detected URL: https://github.com/nspady/google-calendar-mcp)

extracted_from_files

URL

detected URL: https://github.com/199-biotechnologies/mcp-google-calendar-plus).

XIOC detected URL: https://github.com/199-biotechnologies/mcp-google-calendar-plus).

extracted_from_files

URL

detected URL: https://www.googleapis.com/auth/calendar

XIOC detected URL: https://www.googleapis.com/auth/calendar

extracted_from_files

Domain

detected Domain: messageids.map

XIOC detected Domain: messageids.map

extracted_from_files

Domain

detected Domain: index.js.map

XIOC detected Domain: index.js.map

extracted_from_files

Domain

detected Domain: google.gmail

XIOC detected Domain: google.gmail

extracted_from_files

Domain

detected Domain: v1.gmail

XIOC detected Domain: v1.gmail

extracted_from_files

Domain

detected Domain: readme.md

XIOC detected Domain: readme.md

extracted_from_files

Other

detected Email: [email protected]

XIOC detected Email: [email protected]

extracted_from_files

Domain

detected Domain: requestbody.name

XIOC detected Domain: requestbody.name

extracted_from_files

Domain

detected Domain: google18.gmail

XIOC detected Domain: google18.gmail

extracted_from_files

Domain

detected Domain: successful.map

XIOC detected Domain: successful.map

extracted_from_files

Domain

detected Domain: r.id

XIOC detected Domain: r.id

extracted_from_files

Domain

detected Domain: failed.map

XIOC detected Domain: failed.map

extracted_from_files

Domain

detected Domain: failed.id

XIOC detected Domain: failed.id

extracted_from_files

Domain

detected Domain: userlabels.map

XIOC detected Domain: userlabels.map

extracted_from_files

Domain

detected Domain: label.id

XIOC detected Domain: label.id

extracted_from_files

Domain

detected Domain: label.name

XIOC detected Domain: label.name

extracted_from_files

Domain

detected Domain: google16.gmail

XIOC detected Domain: google16.gmail

extracted_from_files

Domain

detected Domain: args.name

XIOC detected Domain: args.name

extracted_from_files

Domain

detected Domain: response.data.name

XIOC detected Domain: response.data.name

extracted_from_files

Domain

detected Domain: google17.gmail

XIOC detected Domain: google17.gmail

extracted_from_files

Domain

detected Domain: labelmutationbuilder.build

XIOC detected Domain: labelmutationbuilder.build

extracted_from_files

Domain

detected Domain: google11.gmail

XIOC detected Domain: google11.gmail

extracted_from_files

Domain

detected Domain: google12.gmail

XIOC detected Domain: google12.gmail

extracted_from_files

Domain

detected Domain: google13.gmail

XIOC detected Domain: google13.gmail

extracted_from_files

Domain

detected Domain: google14.gmail

XIOC detected Domain: google14.gmail

extracted_from_files

Domain

detected Domain: google15.gmail

XIOC detected Domain: google15.gmail

extracted_from_files

Domain

detected Domain: systemlabels.map

XIOC detected Domain: systemlabels.map

extracted_from_files

Domain

detected Domain: part.parts

XIOC detected Domain: part.parts

extracted_from_files

Domain

detected Domain: google9.gmail

XIOC detected Domain: google9.gmail

extracted_from_files

Domain

detected Domain: args.to

XIOC detected Domain: args.to

extracted_from_files

Domain

detected Domain: args.cc

XIOC detected Domain: args.cc

extracted_from_files

URL

detected URL: https://www.googleapis.com/auth/gmail.labels'

XIOC detected URL: https://www.googleapis.com/auth/gmail.labels'

extracted_from_files

Domain

detected Domain: flags.star

XIOC detected Domain: flags.star

extracted_from_files

Domain

detected Domain: google10.gmail

XIOC detected Domain: google10.gmail

extracted_from_files

Domain

detected Domain: message.id

XIOC detected Domain: message.id

extracted_from_files

Domain

detected Domain: details.data

XIOC detected Domain: details.data

extracted_from_files

Domain

detected Domain: h.name

XIOC detected Domain: h.name

extracted_from_files

Domain

detected Domain: payload.parts

XIOC detected Domain: payload.parts

extracted_from_files

Domain

detected Domain: google8.gmail

XIOC detected Domain: google8.gmail

extracted_from_files

Domain

detected Domain: payload.body.data

XIOC detected Domain: payload.body.data

extracted_from_files

Domain

detected Domain: part.body.data

XIOC detected Domain: part.body.data

extracted_from_files

Domain

detected Domain: contact.events

XIOC detected Domain: contact.events

extracted_from_files

Domain

detected Domain: event.date

XIOC detected Domain: event.date

extracted_from_files

Domain

detected Domain: args.emailaddresses.map

XIOC detected Domain: args.emailaddresses.map

extracted_from_files

Domain

detected Domain: args.phonenumbers.map

XIOC detected Domain: args.phonenumbers.map

extracted_from_files

Domain

detected Domain: args.addresses.map

XIOC detected Domain: args.addresses.map

extracted_from_files

Domain

detected Domain: args.organizations.map

XIOC detected Domain: args.organizations.map

extracted_from_files

Domain

detected Domain: google7.gmail

XIOC detected Domain: google7.gmail

extracted_from_files

Domain

detected Domain: calendarinfo.busy.map

XIOC detected Domain: calendarinfo.busy.map

extracted_from_files

Domain

detected Domain: contacts.map

XIOC detected Domain: contacts.map

extracted_from_files

Domain

detected Domain: address.city

XIOC detected Domain: address.city

extracted_from_files

Domain

detected Domain: address.country

XIOC detected Domain: address.country

extracted_from_files

Domain

detected Domain: org.name

XIOC detected Domain: org.name

extracted_from_files

Domain

detected Domain: contact.photos

XIOC detected Domain: contact.photos

extracted_from_files

Domain

detected Domain: birthday.date

XIOC detected Domain: birthday.date

extracted_from_files

Domain

detected Domain: calendarids.map

XIOC detected Domain: calendarids.map

extracted_from_files

Domain

detected Domain: errors.map

XIOC detected Domain: errors.map

extracted_from_files

Domain

detected Domain: response.body.items.map

XIOC detected Domain: response.body.items.map

extracted_from_files

Domain

detected Domain: response.data

XIOC detected Domain: response.data

extracted_from_files

Domain

detected Domain: cleanedevent.id

XIOC detected Domain: cleanedevent.id

extracted_from_files

Domain

detected Domain: originalresponse.data

XIOC detected Domain: originalresponse.data

extracted_from_files

Domain

detected Domain: validargs.data

XIOC detected Domain: validargs.data

extracted_from_files

Domain

detected Domain: cal.id

XIOC detected Domain: cal.id

extracted_from_files

Domain

detected Domain: google19.gmail

XIOC detected Domain: google19.gmail

extracted_from_files

Domain

detected Domain: event.attendees.map

XIOC detected Domain: event.attendees.map

extracted_from_files

Domain

detected Domain: a.email

XIOC detected Domain: a.email

extracted_from_files

Domain

detected Domain: event.id

XIOC detected Domain: event.id

extracted_from_files

Domain

detected Domain: this.name

XIOC detected Domain: this.name

extracted_from_files

Domain

detected Domain: requests.map

XIOC detected Domain: requests.map

extracted_from_files

Domain

detected Domain: your-client-id.apps.googleusercontent.com

XIOC detected Domain: your-client-id.apps.googleusercontent.com

extracted_from_files

Domain

detected Domain: date.now

XIOC detected Domain: date.now

extracted_from_files

Domain

detected Domain: this.app

XIOC detected Domain: this.app

extracted_from_files

Domain

detected Domain: auth-server.js.map

XIOC detected Domain: auth-server.js.map

extracted_from_files

Domain

detected Domain: express.express

XIOC detected Domain: express.express

extracted_from_files

Domain

detected Domain: domain.com

XIOC detected Domain: domain.com

extracted_from_files

Domain

detected Domain: calendars.map

XIOC detected Domain: calendars.map

extracted_from_files

Domain

detected Domain: github.com

XIOC detected Domain: github.com

extracted_from_files

Domain

detected Domain: example.com

XIOC detected Domain: example.com

extracted_from_files

Domain

detected Domain: calendar-json.googleapis.com

XIOC detected Domain: calendar-json.googleapis.com

extracted_from_files

Domain

detected Domain: people.googleapis.com

XIOC detected Domain: people.googleapis.com

extracted_from_files

Domain

detected Domain: id.apps.googleusercontent.com

XIOC detected Domain: id.apps.googleusercontent.com

extracted_from_files

Domain

detected Domain: www.googleapis.com

XIOC detected Domain: www.googleapis.com

extracted_from_files

Domain

detected Domain: process.env.google

XIOC detected Domain: process.env.google

extracted_from_files

URL

detected URL: https://www.googleapis.com/auth/gmail.send',

XIOC detected URL: https://www.googleapis.com/auth/gmail.send',

extracted_from_files

URL

detected URL: https://www.googleapis.com/auth/gmail.modify',

XIOC detected URL: https://www.googleapis.com/auth/gmail.modify',

extracted_from_files

URL

detected URL: https://github.com/199-mcp/mcp-google#readme

XIOC detected URL: https://github.com/199-mcp/mcp-google#readme

extracted_from_files

Domain

detected Domain: console.cloud.google.com

XIOC detected Domain: console.cloud.google.com

extracted_from_files

Security Analysis Summary

Security Analysis Overview

mcp-google is a mcp extension published by 199bio. Version 2.3.0 has been analyzed by the Risky Plugins security platform, receiving a risk score of 100/100 (CRITICAL risk) based on 181 security findings.

Risk Assessment

This extension presents critical security risk. Severe issues were detected, potentially including malware indicators, exposed secrets, or dangerous behaviors. Installation is strongly discouraged until these issues are addressed.

Findings Breakdown

High: 57 finding(s)
Medium: 121 finding(s)

What Was Analyzed

The security assessment covers multiple analysis categories:

Malware Detection: YARA rule matching against 2,400+ malware signatures
Secret Detection: Scanning for exposed API keys, tokens, and credentials
Static Analysis: Code-level security analysis for common vulnerability patterns
Network Analysis: Detection of suspicious network communications and endpoints
Obfuscation Detection: Identification of code obfuscation techniques

Developer Information

mcp-google is published by 199bio on the mcp marketplace.

Recommendation

This extension is not recommended for installation without thorough manual review. Consider alternatives with lower risk scores, or contact the developer to address the identified security concerns.

Source Code Viewer

Source Code Not Available

Source code is not available for this version of the extension.

Frequently Asked Questions

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Risk Assessment

Severity Breakdown

Finding Categories

YARA Rules Matched

MCP Server Analysis

About This Extension

Detailed Findings

MCP-TOOL-FILESYSTEM-ACCESS-build/auth-server.js-173

MCP-TOOL-FILESYSTEM-ACCESS-build/auth-server.js-293

MCP-TOOL-CREDENTIAL-ACCESS-build/auth-server.js-86

MCP-TOOL-CREDENTIAL-ACCESS-build/index.js-101

MCP-TOOL-CREDENTIAL-ACCESS-build/auth-server.js-15

MCP-TOOL-CREDENTIAL-ACCESS-build/index.js-29

MCP-TOOL-CREDENTIAL-ACCESS-build/auth-server.js-87

MCP-TOOL-CREDENTIAL-ACCESS-build/index.js-42

MCP-TOOL-CREDENTIAL-ACCESS-build/auth-server.js-119

MCP-TOOL-CREDENTIAL-ACCESS-build/auth-server.js-19

MCP-TOOL-CREDENTIAL-ACCESS-build/auth-server.js-28

MCP-TOOL-CREDENTIAL-ACCESS-build/index.js-142

MCP-TOOL-CREDENTIAL-ACCESS-build/index.js-70

MCP-TOOL-CREDENTIAL-ACCESS-build/auth-server.js-106

MCP-TOOL-FILESYSTEM-ACCESS-build/auth-server.js-180

MCP-TOOL-FILESYSTEM-ACCESS-build/index.js-187

MCP-TOOL-FILESYSTEM-ACCESS-build/index.js-217

MCP-TOOL-CREDENTIAL-ACCESS-build/index.js-100

MCP-TOOL-CREDENTIAL-ACCESS-build/auth-server.js-128

MCP-TOOL-CREDENTIAL-ACCESS-build/auth-server.js-56

MCP-TOOL-FILESYSTEM-ACCESS-build/index.js-194

MCP-TOOL-CREDENTIAL-ACCESS-build/index.js-133

MCP-TOOL-CREDENTIAL-ACCESS-build/index.js-33

MCP-TOOL-CREDENTIAL-ACCESS-build/index.js-120

MCP-TOOL-FILESYSTEM-ACCESS-build/index.js-307

MCP-TOOL-FILESYSTEM-ACCESS-build/auth-server.js-203

MCP-TOOL-FILESYSTEM-ACCESS-build/index.js-525

MCP-TOOL-FILESYSTEM-ACCESS-build/auth-server.js-197

MCP-TOOL-FILESYSTEM-ACCESS-build/auth-server.js-511

MCP-TOOL-FILESYSTEM-ACCESS-build/auth-server.js-70

MCP-TOOL-FILESYSTEM-ACCESS-build/index.js-244

MCP-TOOL-FILESYSTEM-ACCESS-build/index.js-4629

MCP-TOOL-FILESYSTEM-ACCESS-build/index.js-181

MCP-TOOL-FILESYSTEM-ACCESS-build/index.js-84

MCP-TOOL-NETWORK-ACCESS-build/index.js-2028

MCP-TOOL-FILESYSTEM-ACCESS-build/index.js-211

MCP-TOOL-FILESYSTEM-ACCESS-build/index.js-12

MCP-TOOL-FILESYSTEM-ACCESS-build/auth-server.js-167

NET-FETCH-build/index.js-2028

MCP-TOOL-FILESYSTEM-ACCESS-build/auth-server.js-230

HASH-230d186dda9c5caa

HASH-301b45c76527df02

HASH-e176b5b97768c6f8

YARA Rule Matches

UsingCommandLineArguments

postinstall file manipulation

postinstall network communication

postinstall file download

postinstall system command

postinstall obfuscation

credential env files

postinstall persistence mechanism

Indicators of Compromise

All Indicators · 105

Security Analysis Summary

Security Analysis Overview

Risk Assessment

Findings Breakdown

What Was Analyzed

Developer Information

Recommendation

Frequently Asked Questions

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