MCP serverio.github.polygraphso/litmus

Grade MCP servers A to F with the open behavioral litmus.

Grade MCP servers A to F with the open behavioral litmus. npm: full toolset; hosted: lookups only.

UNRATEDActivestreamable-httppolygraph.so

Overview

Score?

UNRATED 0.672

of what a free look can see, on 30 looks

Looks

last 13 hr ago

Tools

changed 18 days ago

URL

polygraph.so/api/mcp

streamable-http

Says it is

polygraph 1.0.0

protocol 2025-06-18

In the record since

32 days ago

0median 0.606 · this server 0.672 · highest on record 0.8561

The tools this server lists, read out of the definition it returned
Tool	Schema
check_server Read a server's published behavioral grade (A-F) from polygraph.so in under a second; no execution. The pre-flight check before recommending or installing an MCP server. On a miss	input · output
list_servers Servers with a published polygraph grade, sorted A-first then by ref. Returns up to `limit` rows starting at `offset` (default limit 25, capped at 100 per call); `grade` restricts	input · output
request_grade Hosted grading is discontinued. This tool returns gone. Existing published grades remain available via check_server / list_servers. To grade a server yourself, run the open harness	input · output

Verify it yourselfnpx teppi-check https://polygraph.so/api/mcpcurl -s https://api.teppi.xyz/v1/trust/mcp/mcs_01M1FZ2MQS5946W6C9KTYHXZ7F