Registry › Compare › MCP Apps vs Pi MCP Adapter

MCP Apps vs Pi MCP Adapter

MCP Apps leads on trust: 86.5/100 (Grade A) against 74.7/100 (Grade B), a 11.8-point gap. MCP Apps leads on supply-chain integrity and provenance; Pi MCP Adapter leads on maintenance.

A MCP Apps 86.5

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

modelcontextprotocol/ext-apps · #76 overall · #6 Protocols & Tool Integration · coverage B (3/5)

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

+7.7Safety / Integrity: OSSF Scorecard 5.8 against 4.6
+7.2Identity / Provenance: package provenance attested, against none
+2.2Adoption: 5.2M weekly downloads against 371.2k
+1.0Transparency: OSSF Scorecard 5.8 against 4.6

B Pi MCP Adapter 74.7

Token-efficient MCP adapter for Pi coding agent

nicobailon/pi-mcp-adapter · #261 overall · #12 Protocols & Tool Integration · coverage B (3/5)

Choose Pi MCP Adapter if maintenance matters most.

+5.6Maintenance: last push today, against 21d ago

Where they differ

18.1

Safety / IntegrityMCP Apps +7.7

10.4

18.0

Identity / ProvenanceMCP Apps +7.2

10.8

13.4

TransparencyMCP Apps +1.0

12.4

14.4

MaintenancePi MCP Adapter +5.6

20.0

17.3

AdoptionMCP Apps +2.2

15.1

+5.3

Runtime calibrationPi MCP Adapter +0.7

+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	86.5	74.7
Evidence grade	A	B
Coverage grade	B	B
Overall rank	#76	#261
Rank in Protocols & Tool Integration	#6	#12
GitHub stars	3.0k	1.6k
Last updated	21d ago	today
Build provenance	Yes	No
OSSF Scorecard	5.8 / 10	4.6 / 10
License	NOASSERTION	MIT
Downloads	5.2M/wk	371k/wk
Trust dimensions (points earned)
Safety / integrity / 25	18.1	10.4
Identity & provenance / 18	18.0	10.8
Transparency / 17	13.4	12.4
Maintenance / 20	14.4	20.0
Adoption / 20	17.3	15.1
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 →