Registry › Compare › MCP Apps vs MCP Inspector

MCP Apps vs MCP Inspector

Both are Grade A and 4.0 points apart, so choose on what you weigh most. MCP Inspector leads on transparency and maintenance.

A MCP Apps 88.0

Official repo for spec & SDK of MCP Apps protocol - standard for UIs embedded AI chatbots, served by MCP servers

modelcontextprotocol/ext-apps · #62 overall · #7 Protocols & Tool Integration · coverage B (3/5)

MCP Apps doesn't lead on any scored dimension in this pair.

A MCP Inspector 92.0

Deterministic testing tools for MCP servers

modelcontextprotocol/inspector · #14 overall · #3 Protocols & Tool Integration · coverage B (3/5)

Choose MCP Inspector if transparency and maintenance matter most.

+3.5Maintenance
+1.5Transparency: OSSF Scorecard 7.5 against 5.8

Where they differ

18.1

Safety / IntegrityMCP Inspector +0.3

18.4

13.4

TransparencyMCP Inspector +1.5

14.9

16.2

MaintenanceMCP Inspector +3.5

19.7

+4.7

Runtime calibrationMCP Apps +1.3

+3.4

2 dimensions identical: Identity 18.0 · Adoption 17.6 · Full evidence table

An independent, evidence-based trust comparison of MCP Apps and MCP Inspector, two Protocols & Tool Integration projects in the HVTracker registry. Scores come from public, checkable signals — supply-chain provenance, OSSF Scorecard, maintenance, and adoption — not popularity.

Full evidence

Signal	MCP Appsmodelcontextprotocol/ext-apps	MCP Inspectormodelcontextprotocol/inspector
HVTrust score	88.0	92.0
Evidence grade	A	A
Coverage grade	B	B
Overall rank	#62	#14
Rank in Protocols & Tool Integration	#7	#3
GitHub stars	3.1k	11.3k
Last updated	5d ago	5d ago
Build provenance	Yes	Yes
OSSF Scorecard	5.8 / 10	7.5 / 10
License	NOASSERTION	NOASSERTION
Downloads	8.9M/wk	810k/wk
Trust dimensions (points earned)
Safety / integrity / 25	18.1	18.4
Identity & provenance / 18	18.0	18.0
Transparency / 17	13.4	14.9
Maintenance / 20	16.2	19.7
Adoption / 20	17.6	17.6
Runtime capability surface (full matrix)
MCP server	Implemented	Implemented
External providers	1 — Anthropic	—
Requires API keys	No	No
Plugin surface	plugins	—
Provenance drift	Match	Match

Open in the live compare tool → MCP Apps profile MCP Inspector profile More Protocols & Tool Integration →

How to read this: HVTrust (0–100) weighs supply-chain signals (provenance, OSSF Scorecard, signed commits, open license) alongside real-world adoption, scaled by an evidence-confidence factor. Grade bands: A ≥ 80, B ≥ 65, C ≥ 50, D < 50. Signals refresh daily. Full methodology v4.4 →