authprobe
★ 15
vs
mcp-assert
★ 16
authprobe vs mcp-assert
authprobe: `authprobe` is a diagnostic tool designed to pinpoint and troubleshoot failures in the Model Context Protocol (MCP) OAuth authentication flows. It scans the discovery process, identifies divergences from specifications, and provides detailed reports including RFC-based explanations and network traces to help resolve compliance issues.; mcp-assert: mcp-assert is a powerful tool designed to test MCP (Multi-Agent Communication Protocol) servers against the real protocol, eliminating the need for mocks or language-specific dependencies. It validates server responses against YAML-defined expectations, ensuring compatibility with all MCP clients.
01
TL;DR
Choose authprobe if…Validating OAuth discovery and protected-resource metadata behavior for MCP server authors.
Choose mcp-assert if…Validate MCP server compliance: Ensure your MCP server works with every MCP client by testing against the real protocol.
02
Side-by-Side Comparison
03
Features
authprobe01Pinpoints MCP OAuth failures by walking the discovery flow and reporting divergences from spec.
02Provides a "funnel view" output to visualize where issues broke in the authentication chain.
03Offers RFC-based explanations and detailed network traces for failed probe steps.
04Supports LLM-powered explanations of RFC compliance gaps, with options for OpenAI or Anthropic.
05Generates comprehensive outputs like Markdown, JSON reports, and sanitized evidence bundles for troubleshooting.
mcp-assert01Protocol-level testing without mocks: Connects to servers using real stdio/SSE/HTTP transport and full MCP handshake.
02YAML-driven assertions: Define expectations in YAML for deterministic output validation.
03Language and framework agnostic: Tests any MCP server regardless of its implementation language and integrates with various test runners (Vitest, pytest, etc.).
04Comprehensive audit and fuzzing: Automatically scans servers, classifies tool health, and throws adversarial inputs to find crashes.
04
Use Cases
authprobe↳Validating OAuth discovery and protected-resource metadata behavior for MCP server authors.
↳Debugging where auth flows diverge from RFC 9728 / RFC 8414 for MCP client implementers.
↳Triaging auth regressions in CI before rollout for platform, security, and infra teams.
↳Generating reproducible evidence bundles for handoff across organizational boundaries for API teams.
↳Setting up recurring protection and regression tripwires in CI/CD pipelines (e.g., GitHub Actions).
mcp-assert↳Validate MCP server compliance: Ensure your MCP server works with every MCP client by testing against the real protocol.
↳Integrate into CI/CD pipelines: Automate testing with GitHub Actions, regression detection, and JUnit XML reports.
↳Discover hidden bugs in MCP implementations: Find issues that traditional unit tests miss by testing over the wire.
↳Rapid server auditing: Quickly audit any MCP server in seconds to check tool health and schema issues without extensive setup.
05
Best For
authprobeTrendingSecurity & SafetyAPI Integration
mcp-assertHidden GemEssential
FAQ
FAQ
What is the difference between authprobe and mcp-assert?
Both authprobe and mcp-assert are in the Vision / Multimodal category. authprobe has 15 stars, while mcp-assert has 16 stars.
Which is better, authprobe or mcp-assert?
The best choice depends on your use case. Choose authprobe if Validating OAuth discovery and protected-resource metadata behavior for MCP server authors., and mcp-assert if Validate MCP server compliance: Ensure your MCP server works with every MCP client by testing against the real protocol..
Is authprobe free or open source?
Yes, authprobe is open source on GitHub (Apache-2.0).
Is mcp-assert free or open source?
Yes, mcp-assert is open source on GitHub (MIT).
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