FastMCP vs MCP Inspector
An independent, evidence-based trust comparison of FastMCP 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.
MCP Inspector leads on trust — 83.2/100 (Grade A) vs 80.4/100 (Grade A), a 2.8-point gap. Full breakdown below.
| Signal | FastMCPPrefectHQ/fastmcp | MCP Inspectormodelcontextprotocol/inspector |
|---|---|---|
| HVTrust score | 80.4 | 83.2 |
| Evidence grade | A | A |
| Coverage grade | B | B |
| Overall rank | #104 | #79 |
| Rank in Protocols & Tool Integration | #5 | #4 |
| GitHub stars | 27.5k | 10.8k |
| Last updated | today | today |
| Build provenance | No | Yes |
| OSSF Scorecard | 5.4 / 10 | 6.6 / 10 |
| License | Apache-2.0 | — |
| Downloads | 10.4M/wk | 185k/wk |
| Trust dimensions (points earned) | ||
| Safety / integrity / 25 | 11.8 | 16.9 |
| Identity & provenance / 18 | 10.8 | 18.0 |
| Transparency / 17 | 13.1 | 5.6 |
| Maintenance / 20 | 19.7 | 20.0 |
| Adoption / 20 | 20.0 | 16.7 |
| Runtime capability surface (full matrix) | ||
| MCP server | Implemented | Implemented |
| External providers | 3 — Anthropic, Google Gemini, OpenAI | — |
| Requires API keys | No | No |
| Plugin surface | — | — |
| Provenance drift | Match | Match |
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FastMCP profile
MCP Inspector profile
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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 v4.3 →