"Poly" matching MCP servers:

• 

  Polygraphofficial

  polygraphso

  A

  license

  A

  quality

  A

  maintenance

  Open behavioral litmus for MCP servers — grades A–F across tool-output injection, egress, sensitive-data, and adversarial-input, with reproducible, content-addressed evidence. Tools: run_litmus, verify_attestation.

  Last updated 2026-07-16

  12

  4

  86

  7

  Apache 2.0

• DB-MCP

  saopack

  A

  license

  -

  quality

  B

  maintenance

  Multi-database SQL validation service with Docker containerization, supporting PostgreSQL, MySQL, Oracle, SQL Server, and more, providing secure SQL execution with transaction rollback and zero data residue.

  Last updated 2026-06-09

  MIT