Is "flow-mcp-server" on MCP Registry Safe to Install?
Model Context Protocol (MCP) server for Flow blockchain with direct RPC communication
Risk Assessment
Analyzed116 security findings detected across all analyzers
MCP server analyzed for tool poisoning, prompt injection, and data exfiltration
Severity Breakdown
Finding Categories
YARA Rules Matched
12 rules(45 hits)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
Detailed Findings
83 totalYARA Rule Matches
12 rulesIndicators of Compromise
Network indicators, suspicious strings, and potential IoCs extracted during analysis
All Indicators · 32
detected IP: 0.0.0.0 XIOC detected IP: 0.0.0.0
extracted_from_files
detected URL: https://github.com/outblock/flow-mcp-server#readme XIOC detected URL: https://github.com/outblock/flow-mcp-server#readme
extracted_from_files
detected Domain: formattedargs.map XIOC detected Domain: formattedargs.map
extracted_from_files
detected Domain: t.int XIOC detected Domain: t.int
extracted_from_files
detected Domain: result.events XIOC detected Domain: result.events
extracted_from_files
detected Domain: access.mainnet.nodes.onflow.org XIOC detected Domain: access.mainnet.nodes.onflow.org
extracted_from_files
detected Domain: access.testnet.nodes.onflow.org XIOC detected Domain: access.testnet.nodes.onflow.org
extracted_from_files
detected URL: https://keepachangelog.com/en/1.0.0/), XIOC detected URL: https://keepachangelog.com/en/1.0.0/),
extracted_from_files
detected URL: https://semver.org/spec/v2.0.0.html). XIOC detected URL: https://semver.org/spec/v2.0.0.html).
extracted_from_files
detected URL: https://access.testnet.nodes.onflow.org:9000'; XIOC detected URL: https://access.testnet.nodes.onflow.org:9000';
extracted_from_files
detected Domain: rest-testnet.onflow.org XIOC detected Domain: rest-testnet.onflow.org
extracted_from_files
detected Domain: params.network XIOC detected Domain: params.network
extracted_from_files
detected Domain: flow.network XIOC detected Domain: flow.network
extracted_from_files
detected Domain: app.post XIOC detected Domain: app.post
extracted_from_files
detected Domain: process.env.host XIOC detected Domain: process.env.host
extracted_from_files
detected Domain: account.keys.map XIOC detected Domain: account.keys.map
extracted_from_files
detected Domain: keepachangelog.com XIOC detected Domain: keepachangelog.com
extracted_from_files
detected Domain: semver.org XIOC detected Domain: semver.org
extracted_from_files
detected Domain: github.com XIOC detected Domain: github.com
extracted_from_files
detected Domain: event.data XIOC detected Domain: event.data
extracted_from_files
detected Domain: readme.md XIOC detected Domain: readme.md
extracted_from_files
detected Domain: changelog.md XIOC detected Domain: changelog.md
extracted_from_files
detected Domain: notes.md XIOC detected Domain: notes.md
extracted_from_files
detected URL: https://rest-testnet.onflow.org', XIOC detected URL: https://rest-testnet.onflow.org',
extracted_from_files
detected URL: https://rest-mainnet.onflow.org', XIOC detected URL: https://rest-mainnet.onflow.org',
extracted_from_files
detected URL: https://rest-mainnet.onflow.org' XIOC detected URL: https://rest-mainnet.onflow.org'
extracted_from_files
detected URL: https://github.com/outblock/flow-mcp-server/issues XIOC detected URL: https://github.com/outblock/flow-mcp-server/issues
extracted_from_files
detected URL: https://rest-testnet.onflow.org'); XIOC detected URL: https://rest-testnet.onflow.org');
extracted_from_files
detected URL: https://access.mainnet.nodes.onflow.org:9000'; XIOC detected URL: https://access.mainnet.nodes.onflow.org:9000';
extracted_from_files
detected URL: https://github.com/outblock/flow-mcp-server.git XIOC detected URL: https://github.com/outblock/flow-mcp-server.git
extracted_from_files
detected URL: https://github.com/lmcmz/flow-mcp-server.git XIOC detected URL: https://github.com/lmcmz/flow-mcp-server.git
extracted_from_files
detected Domain: rest-mainnet.onflow.org XIOC detected Domain: rest-mainnet.onflow.org
extracted_from_files
Security Analysis Summary
Security Analysis Overview
flow-mcp-server is a mcp extension published by outblock. Version 1.2.26 has been analyzed by the Risky Plugins security platform, receiving a risk score of 100/100 (CRITICAL risk) based on 116 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: 54 finding(s)
- Medium: 33 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
flow-mcp-server is published by outblock 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 Not Available
Source code is not available for this version of the extension.
Frequently Asked Questions
Similar Extensions
Related extensions from the same publisher or marketplace