"Proton Mail" matching MCP servers:

• 

  Acuris MCP Serverofficial

  Acuris-GmbH

  A

  license

  A

  quality

  C

  maintenance

  Enables address validation, geocoding, postcode lookup, and reverse geocoding in 240+ countries, including UK Royal Mail PAF data, through four tools for MCP-aware clients.

  Last updated 2026-06-09

  4

  73

  MIT
• 

  Postioofficial

  postio-uk

  A

  license

  -

  quality

  B

  maintenance

  UK address (Royal Mail PAF), email, and phone (live HLR carrier) validation via the Postio API. Six tools: address search, postcode lookup, UDPRN, email validate, phone validate, and a health probe.

  Last updated 2026-05-27

  MIT