Registry › Compare › MCP Apps vs Pi MCP Adapter

MCP Apps vs Pi MCP Adapter

MCP Apps leads on trust: 89.3/100 (Grade A) against 76.0/100 (Grade B), a 13.3-point gap. MCP Apps leads on supply-chain integrity and provenance; Pi MCP Adapter leads on maintenance.

A MCP Apps 89.3

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

modelcontextprotocol/ext-apps · #26 overall · #2 Protocols & Tool Integration · coverage B (3/5)

Choose MCP Apps if supply-chain integrity and provenance matter most.

+7.2Safety / Integrity: OSSF Scorecard 6.1 against 5.3
+7.2Identity / Provenance: package provenance attested, against none
+2.3Adoption: 5.0M weekly downloads against 278.1k
+0.7Transparency: OSSF Scorecard 6.1 against 5.3

B Pi MCP Adapter 76.0

Token-efficient MCP adapter for Pi coding agent

nicobailon/pi-mcp-adapter · #211 overall · #8 Protocols & Tool Integration · coverage B (3/5)

Choose Pi MCP Adapter if maintenance matters most.

+2.2Maintenance: last push today, against 8d ago

Where they differ

18.5

Safety / IntegrityMCP Apps +7.2

11.3

18.0

Identity / ProvenanceMCP Apps +7.2

10.8

13.7

TransparencyMCP Apps +0.7

13.0

17.8

MaintenancePi MCP Adapter +2.2

20.0

17.2

AdoptionMCP Apps +2.3

14.9

+4.1

Runtime calibrationPi MCP Adapter +1.9

+6.0

Full evidence table

An independent, evidence-based trust comparison of MCP Apps and Pi MCP Adapter, 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	Pi MCP Adapternicobailon/pi-mcp-adapter
HVTrust score	89.3	76.0
Evidence grade	A	B
Coverage grade	B	B
Overall rank	#26	#211
Rank in Protocols & Tool Integration	#2	#8
GitHub stars	2.9k	1.6k
Last updated	8d ago	today
Build provenance	Yes	No
OSSF Scorecard	6.1 / 10	5.3 / 10
License	NOASSERTION	MIT
Downloads	5.0M/wk	278k/wk
Trust dimensions (points earned)
Safety / integrity / 25	18.5	11.3
Identity & provenance / 18	18.0	10.8
Transparency / 17	13.7	13.0
Maintenance / 20	17.8	20.0
Adoption / 20	17.2	14.9
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 Pi MCP Adapter 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 →