Mmcp.market

Principia MCP server

by peopleprincipia.com·com.peopleprincipia/principia·v1

Source-graded registry of organizational measurement: constructs, priors, instruments, citations.

C58/100grade C
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Safety scan
C58/100

full report

Adoption
New

Little public usage data yet

Reviews

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If you have run it, two minutes of your experience saves the next person an afternoon.

Principia tools

Tool list not cached yet. `describe` through the gateway fetches it live.

Public scan report

scanner v0.1.9 · 2026-09-20 · same rubric, same numbers if you re-run it

no findings
  • Code scanremote-only server, no package to scann/a
  • Live reliabilityremote reachable in 1007ms; handshake note: Unexpected token 'e', "event: mes"... is not valid JSON20/20
  • Tool poisoningtools not inspected (endpoint requires auth); not countedn/a
  • Auth qualityAPI key sent as a header8/15
  • Maintenancerepository not readable: repo not found3/15
  • Maintainer identityverified namespace with website, no repo4/10
Overall 58/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

Install directly

claude mcp add --transport http principia https://peopleprincipia.com/api/mcp
Add to Cursor

Principia: common questions

Is Principia MCP server safe?
With care: it is graded C, so read the findings first (58/100). Read the Principia safety report
How do I install Principia?
It runs remotely at peopleprincipia.com. Add it to Claude Code, Claude Desktop or Cursor with the snippets above, or call it through the mcp.market gateway without installing anything.
Does Principia need an API key?
Yes. The registry entry asks for Authorization.
Is Principia maintained?
The latest release is v1.
Is Principia up?
100% of our last 6 checks got an answer. We check remote servers about four times a day.

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