Registry › Compare › MCP Apps vs MCP TypeScript SDK

MCP Apps vs MCP TypeScript SDK

MCP TypeScript SDK leads on trust: 94.6/100 (Grade A) against 89.1/100 (Grade A), a 5.5-point gap. MCP TypeScript SDK leads on supply-chain integrity and adoption.

A MCP Apps 89.1

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

modelcontextprotocol/ext-apps · #32 overall · #5 Protocols & Tool Integration · coverage B (3/5)

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

A MCP TypeScript SDK 94.6

The official TypeScript SDK for Model Context Protocol servers and clients

modelcontextprotocol/typescript-sdk · #3 overall · #1 Protocols & Tool Integration · coverage B (3/5)

Choose MCP TypeScript SDK if supply-chain integrity and adoption matter most.

+2.7Adoption: 76.2M weekly downloads against 5.3M
+2.6Safety / Integrity: 100% of recent commits signed, against 68%
+1.4Maintenance: last push today, against 13d ago
+0.7Transparency: OSSF Scorecard 6.9 against 6.1

Where they differ

18.5

Safety / IntegrityMCP TypeScript SDK +2.6

21.1

13.7

TransparencyMCP TypeScript SDK +0.7

14.4

17.4

MaintenanceMCP TypeScript SDK +1.4

18.8

17.3

AdoptionMCP TypeScript SDK +2.7

20.0

+4.2

Runtime calibrationMCP Apps +1.9

+2.3

1 dimension identical: Identity 18.0 · Full evidence table

An independent, evidence-based trust comparison of MCP Apps and MCP TypeScript SDK, 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 TypeScript SDKmodelcontextprotocol/typescript-sdk
HVTrust score	89.1	94.6
Evidence grade	A	A
Coverage grade	B	B
Overall rank	#32	#3
Rank in Protocols & Tool Integration	#5	#1
GitHub stars	2.9k	13.5k
Last updated	13d ago	today
Build provenance	Yes	Yes
OSSF Scorecard	6.1 / 10	6.9 / 10
License	NOASSERTION	NOASSERTION
Downloads	5.3M/wk	76.2M/wk
Trust dimensions (points earned)
Safety / integrity / 25	18.5	21.1
Identity & provenance / 18	18.0	18.0
Transparency / 17	13.7	14.4
Maintenance / 20	17.4	18.8
Adoption / 20	17.3	20.0
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 TypeScript SDK 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 →