tooltrust-scanner
★ 16
vs
fastmcp
★ 25.4k
tooltrust-scanner vs fastmcp
tooltrust-scanner: ToolTrust Scanner is a static security scanner that analyzes MCP tool definitions before your agent trusts them. It assigns a trust grade (A–F) based on 16+ static rules, covering prompt injection, privilege escalation, and supply chain attacks. It can be used as an MCP server, CLI tool, or CI check.; fastmcp: FastMCP is a standard framework for building Model Context Protocol (MCP) applications, which connect LLMs to tools and data. It simplifies the process by automatically generating schemas, validation, and documentation for tools, and managing transport negotiation and authentication for server connections. FastMCP offers a comprehensive solution for developing, deploying, and scaling MCP-powered systems.
01
TL;DR
Choose tooltrust-scanner if…Scan all MCP servers in your config from an agent prompt
Choose fastmcp if…Building LLM applications that interact with custom tools and data sources
02
Side-by-Side Comparison
03
Features
tooltrust-scanner01Static analysis of MCP tool definitions
02Trust grade (A–F) assignment
0316+ security rules covering prompt injection, privilege escalation, supply chain CVEs, and more
04Multiple deployment modes: MCP server, CLI, and CI/GitHub Actions
05Integration with ToolTrust Directory for community-shared trust scores
fastmcp01Automatic schema, validation, and documentation generation for tools
02Managed transport negotiation, authentication, and protocol lifecycle for server connections
03Wraps Python functions into MCP-compliant tools, resources, and prompts (Servers)
04Connects to any MCP server with full protocol support (Clients)
05Provides interactive UIs for tools rendered directly in conversations (Apps)
04
Use Cases
tooltrust-scanner↳Scan all MCP servers in your config from an agent prompt
↳Block risky MCP servers in CI pipeline with fail-on thresholds
↳Gate installation of untrusted MCP servers before adding to config
fastmcp↳Building LLM applications that interact with custom tools and data sources
↳Creating interactive conversational UIs for backend functionalities
↳Developing and deploying scalable MCP servers and clients
05
Best For
tooltrust-scannerTrendingSecurity & SafetyAPI Integration
fastmcpMost PopularDev ToolingLLM Infra
FAQ
FAQ
What is the difference between tooltrust-scanner and fastmcp?
Both tooltrust-scanner and fastmcp are in the Security & Safety category. tooltrust-scanner has 16 stars, while fastmcp has 25.4k stars.
Which is better, tooltrust-scanner or fastmcp?
The best choice depends on your use case. Choose tooltrust-scanner if Scan all MCP servers in your config from an agent prompt, and fastmcp if Building LLM applications that interact with custom tools and data sources.
Is tooltrust-scanner free or open source?
Yes, tooltrust-scanner is open source on GitHub (MIT).
Is fastmcp free or open source?
Yes, fastmcp is open source on GitHub (Apache-2.0).
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