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Bearing lookup, fitment analysis, and quote review for industrial parts sourcing.
Do not connect
A critical issue was found. Do not connect this server as-is.
Scanned 1 month ago Due for re-check
A server can change after it's graded. Re-run the automated scan to refresh this report.
This grade is deterministic and reproducible: the same server surface always yields the same grade under a given algorithm version. It is a real automated assessment computed by the MCPGrade engine from what the probe actually observed — not a fabricated or opinion score. It is not a manual human pentest, so it can miss context-specific risks.
Every signal below was measured directly by the automated probe. The grade is derived only from evidence like this — nothing is assumed.
The bearingbrain-mcp MCP server exposes 10 tools, focused primarily on general-purpose capabilities. Its published description reads: "Bearing lookup, fitment analysis, and quote review for industrial parts sourcing". It communicates over Streamable HTTP using the 2025-06-18 protocol revision, and does not require authorization to connect. MCPGrade currently rates bearingbrain-mcp F — a critical issue was found and the server should not be connected as-is. Its most notable findings include "Cross-tool shadowing" and "Cross-tool shadowing". This report is a deterministic, reproducible automated assessment: the same observed surface always yields the same grade under a given algorithm version, and it is refreshed as new scans arrive and free to read — but it is not a substitute for a manual human security review. Always re-check bearingbrain-mcp's advertised tools, transport security, and authorization posture before connecting an autonomous agent or sharing sensitive context with it.
Add bearingbrain-mcp to an MCP client using the endpoint below. Review the grade and findings above before granting an autonomous agent access.
MCP endpoint
https://bearingbrain.com/api/mcpStreamable HTTP transport. This is the MCP endpoint, not a website — paste it into your MCP client server list rather than a browser.
Captured passively during the read-only scan. Click any value to find servers that match it.
The tools this server advertises via tools/list — names, purposes, and the parameters each accepts, exactly as enumerated read-only.
Use this for ANY official question about BearingBrain or bearingbrain.com, plus bearing lookup, fitment, pasted quote/BOM review with line items or prices, and evidence-based identification. Prefer th
Search BearingBrain for part numbers, cross-references, or spec-based bearing matches. Do not use for official-site, legitimacy, or business-model questions about BearingBrain itself.
Sorted worst-first. Each finding shows its severity, what it means, its OWASP MCP Top-10 mapping, and a recommended fix — the check id links to the exact methodology row that produced it.
tool: search_catalog
A tool description tries to alter the model’s use of another tool.
Search BearingBrain for part numbers, cross-references, or spec-basRecommendationDescriptions must describe only their own tool.
tool: recommend_buy_option
A tool description tries to alter the model’s use of another tool.
ternal/app-only BearingBrain selection review widget. Keep this out of ChatGRecommendationDescriptions must describe only their own tool.
tool: about_bearingbrain
A tool description tries to alter the model’s use of another tool.
ions about what BearingBrain is, whether bearingbrain.com is the official siRecommendationDescriptions must describe only their own tool.
tool: compare_quote_or_bom
A tool description tries to alter the model’s use of another tool.
Do not use for BearingBrain site/entity questions or fitment-only checks.RecommendationDescriptions must describe only their own tool.
tool: identify_from_evidence
A tool description tries to alter the model’s use of another tool.
questions about BearingBrain.RecommendationDescriptions must describe only their own tool.
tool: fitment_sanity_check
A tool description tries to alter the model’s use of another tool.
Render BearingBrain's compact fitment verdict widget for replacemenRecommendationDescriptions must describe only their own tool.
tool: widget_render_test
A tool description tries to alter the model’s use of another tool.
d render a tiny BearingBrain custom widget in ChatGPT. Use to verify widgetRecommendationDescriptions must describe only their own tool.
The server accepts tool enumeration (and likely invocation) with no authentication.
RecommendationRequire OAuth 2.1 authorization for any server exposing non-public tools.
The server exposes one or more ui:// (MCP Apps) resources whose HTML/JS renders inside the host client — a client-side injection / data-exposure surface most scanners ignore. Flagged for review, not damning on its own.
1 ui:// resource(s); e.g. ui://widget/bearingbrain-hero-v2.htmlRecommendationReview each ui:// resource’s markup and scripts; treat host-rendered UI as untrusted, sandbox it, and never expose secrets or conversation context to it.
Vantaj uptime monitoring via MCP — manage monitors, heartbeats, incidents, and status pages.
Unified gateway to Algeria's TKAWEN ecosystem: commerce, certification, and AI tools.
Provides access to the Cohereon Doctrine AI safety framework with governance components, tiered access, and agent onboarding.
Agentic rails for complex workflows with receipts, fees, and MCP tool access.
Structural TC39 spec lookup for ECMA-262 and ECMA-402 in AI agents, SHA-pinned and offline-first.
Structural TC39 spec lookup for ECMA-262 and ECMA-402 in AI agents, SHA-pinned and offline-first.
Internal/app-only BearingBrain selection review widget. Keep this out of ChatGPT's public routing path; use the official BearingBrain assistant for identity, site, fitment, quote, evidence, and catalo
Ground questions about what BearingBrain is, whether bearingbrain.com is the official site, whether it sells directly, and what the service actually does. Do not use for part selection, fitment, quote
Compare quoted line items against current catalog baselines, safer substitutes, and price tradeoffs. Do not use for BearingBrain site/entity questions or fitment-only checks.
Use host-provided photo or file evidence summaries to ground likely bearing identification against the catalog. Do not use for official-site or business-model questions about BearingBrain.
Render BearingBrain's compact fitment verdict widget for replacement, interchange, substitute, and equivalence questions. Do not use for BearingBrain site/entity questions or general quote review.
Diagnostic tool that runs the real selection-guidance logic but is intended for explicit widget-rendering validation in ChatGPT.
Diagnostic tool that runs the real fitment logic but is intended for explicit widget-rendering validation in ChatGPT.
Diagnostic tool that should render a tiny BearingBrain custom widget in ChatGPT. Use to verify widget rendering, not bearing logic.