PII Shield

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ai.piishield/pii-shieldv1.0.0 Domain verified

Redact names, IDs, emails, phones and card numbers before they reach the model; restore them after.

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Registry entry

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{
  "_meta": {
    "io.modelcontextprotocol.registry/official": {
      "status": "active",
      "isLatest": true,
      "updatedAt": "2026-11-08T09:54:09.252037Z",
      "publishedAt": "2026-11-08T09:54:09.252037Z",
      "statusChangedAt": "2026-11-08T09:54:09.252037Z"
    }
  },
  "server": {
    "name": "ai.piishield/pii-shield",
    "icons": [
      {
        "src": "https://piishield.ai/icon-128.png",
        "sizes": [
          "128x128"
        ],
        "mimeType": "image/png"
      }
    ],
    "title": "PII Shield",
    "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
    "remotes": [
      {
        "url": "https://piishield.ai/mcp",
        "type": "streamable-http",
        "headers": [
          {
            "name": "Authorization",
            "value": "Bearer {workspace_key}",
            "isSecret": true,
            "variables": {
              "workspace_key": {
                "isSecret": true,
                "isRequired": true,
                "description": "Workspace key starting with shield_"
              }
            },
            "isRequired": true,
            "description": "Your PII Shield workspace key, from the dashboard at https://piishield.ai/my (7-day free trial, no card)."
          }
        ]
      }
    ],
    "version": "1.0.0",
    "websiteUrl": "https://piishield.ai/api",
    "description": "Redact names, IDs, emails, phones and card numbers before they reach the model; restore them after."
  }
}

Maintain this server? Claim it

Try it

Call this server's tools from your browser. Nothing to install.

https://piishield.ai/mcp

Authorization (required)

Your PII Shield workspace key, from the dashboard at https://piishield.ai/my (7-day free trial, no card).

Requests go through mcptry because browsers can't call most MCP servers directly. Header values are sent to the server for that request only and are never stored or logged.

Tool list from our last check. Connect live to refresh it.

detect_pii

Report what personal data appears in text (counts by type) without returning the raw values. Use to check whether text is safe to share. NOTE: detection is automated and is not a guarantee; a clean result does not prove the text is free of personal data.

textstring, required

This tool isn't marked read-only, so it may change something on the server or in an account you connected.

I understand, run it anyway

Try it

Call this server's tools from your browser. Nothing to install.

https://piishield.ai/mcp

Authorization (required)

Your PII Shield workspace key, from the dashboard at https://piishield.ai/my (7-day free trial, no card).

Requests go through mcptry because browsers can't call most MCP servers directly. Header values are sent to the server for that request only and are never stored or logged.

Tool list from our last check. Connect live to refresh it.

detect_pii

textstring, required

This tool isn't marked read-only, so it may change something on the server or in an account you connected.

I understand, run it anyway

Tools (6)

detect_pii

Argument	Type	Description
text*	string

Input schema (JSON)

{
  "type": "object",
  "required": [
    "text"
  ],
  "properties": {
    "text": {
      "type": "string"
    }
  }
}

get_coverage

Show your workspace's current PII coverage (which detectors are on, custom terms, custom patterns). Uses the workspace key from your MCP server URL.

Argument	Type	Description
shield_key	string	optional — only if not already in the server URL

Input schema (JSON)

{
  "type": "object",
  "properties": {
    "shield_key": {
      "type": "string",
      "description": "optional — only if not already in the server URL"
    }
  }
}

list_detectors

List the PII types this shield can mask, and confirm custom regex/terms are supported. Call this to see what coverage is available.

No arguments.

Input schema (JSON)

{
  "type": "object",
  "properties": {}
}

redact

Redact personal data (email, phone, cards, SA ID, SSN, IP, IBAN, names, custom terms) from text, replacing each value with a stable token like [EMAIL_1]. Call this before putting sensitive text into a prompt or context. NOTE: detection is automated and is not a guarantee; it can miss personal data. Review the output before relying on it.

Argument	Type	Description
text*	string	The text to redact.
reject	array	Finding ids (from a preview) to leave unredacted — a human said 'not PII here'.
preview	boolean	Dry run: return what WOULD be redacted (type, confidence, rationale) without changing the text or consuming quota.
detectors	object	Optional map of detector→bool to override defaults.
customTerms	array	Extra literal terms to always mask (custom PII).
customPatterns	array	Custom PII as regexes, e.g. {type:'EMPID', pattern:'EMP-\\d{5}'}.

Input schema (JSON)

{
  "type": "object",
  "required": [
    "text"
  ],
  "properties": {
    "text": {
      "type": "string",
      "description": "The text to redact."
    },
    "reject": {
      "type": "array",
      "items": {
        "type": "string"
      },
      "description": "Finding ids (from a preview) to leave unredacted — a human said 'not PII here'."
    },
    "preview": {
      "type": "boolean",
      "description": "Dry run: return what WOULD be redacted (type, confidence, rationale) without changing the text or consuming quota."
    },
    "detectors": {
      "type": "object",
      "description": "Optional map of detector→bool to override defaults."
    },
    "customTerms": {
      "type": "array",
      "items": {
        "type": "string"
      },
      "description": "Extra literal terms to always mask (custom PII)."
    },
    "customPatterns": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "type": {
            "type": "string"
          },
          "flags": {
            "type": "string"
          },
          "pattern": {
            "type": "string"
          }
        }
      },
      "description": "Custom PII as regexes, e.g. {type:'EMPID', pattern:'EMP-\\\\d{5}'}."
    }
  }
}

redact_document

Redact PII from an uploaded file or document before sharing it with an AI. Works on PDFs, Word (.docx), Excel (.xlsx), and text-based files (txt, csv, json, code, transcripts, logs). Pass base64 file data with media_type/filename, OR raw text. Returns the redacted text and counts. Requires your workspace key (via the MCP server URL). NOTE: detection is automated and is not a guarantee; it can miss personal data. Review the file yourself before sharing it.

Argument	Type	Description
text	string	or raw text instead of a file
base64	string	base64-encoded file bytes
filename	string
detectors	object
media_type	string	e.g. application/pdf, text/csv
customTerms	array
customPatterns	array

Input schema (JSON)

{
  "type": "object",
  "properties": {
    "text": {
      "type": "string",
      "description": "or raw text instead of a file"
    },
    "base64": {
      "type": "string",
      "description": "base64-encoded file bytes"
    },
    "filename": {
      "type": "string"
    },
    "detectors": {
      "type": "object"
    },
    "media_type": {
      "type": "string",
      "description": "e.g. application/pdf, text/csv"
    },
    "customTerms": {
      "type": "array",
      "items": {
        "type": "string"
      }
    },
    "customPatterns": {
      "type": "array",
      "items": {
        "type": "object"
      }
    }
  }
}

set_coverage

Change what this workspace masks, right from your chat. Turn detectors on/off (e.g. enable PERSON name masking), add always-mask terms, or add custom PII as regex (e.g. employee IDs 'EMP-\\d{5}'). Uses the workspace key from your MCP server URL.

Argument	Type	Description
detectors	object	map of detector→bool, e.g. {"PERSON":true}
shield_key	string	optional — only if not already in the server URL
customTerms	array	literal terms to always mask
customPatterns	array	custom PII as regex

Input schema (JSON)

{
  "type": "object",
  "properties": {
    "detectors": {
      "type": "object",
      "description": "map of detector→bool, e.g. {\"PERSON\":true}"
    },
    "shield_key": {
      "type": "string",
      "description": "optional — only if not already in the server URL"
    },
    "customTerms": {
      "type": "array",
      "items": {
        "type": "string"
      },
      "description": "literal terms to always mask"
    },
    "customPatterns": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "type": {
            "type": "string"
          },
          "flags": {
            "type": "string"
          },
          "pattern": {
            "type": "string"
          }
        }
      },
      "description": "custom PII as regex"
    }
  }
}

PII Shield

Registry entry

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detect_pii

PII Shield

Registry entry

Try it

detect_pii

Install

Tools (6)

Security checkA100/100