Redact - PII Detection and Redaction

Deterministic PII detection and redaction for agents over MCP.

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What it can do

  • Redact Pii: Deterministically remove PII (emails, phones, credit cards, IBANs, US SSNs, IPv4/IPv6) from text BEFORE sending it to an LLM or storing it. Credit cards are Luhn-validated and IBANs mod-97
  • Detect Pii: Detect PII in text without modifying it. Returns each entity with its type, value, and character offsets, plus per-type counts. Use to audit a string for compliance or to decide whether it
  • List Pii Types: List the PII entity types and redaction modes this tool supports.

What data it sees

Do you need an account

No: the server works without sign-in

Deterministic PII detection and redaction for agents over MCP. Find and mask emails, phone numbers, credit cards, national IDs and other personal identifiers in free text before it reaches a model or a log. Pure computation: no AI, no API keys, no outbound calls, and nothing is stored.

How to connect

How to connect Redact - PII Detection and Redaction to Claude

The server address to paste into Claude settings:

https://redact-api--ghdejr11.run.tools

  1. Open Claude (claude.ai or the desktop app).
  2. Go to Settings → Connectors.
  3. Click Add custom connector.
  4. Paste the server address copied below into Remote MCP server URL and click Add.
  5. In a chat, click + → Connectors and switch the new connector on.

Custom connectors are available on Free, Pro, Max, Team and Enterprise plans (Free is limited to one). On Team and Enterprise an organization Owner adds the connector first under Organization settings → Connectors.

Authorization

After you click Add, a sign-in window for the service opens. Sign in with your own account and approve access. Claude never sees your password.

How to connect Redact - PII Detection and Redaction to ChatGPT

The server address to paste into ChatGPT settings:

https://redact-api--ghdejr11.run.tools

  1. Open ChatGPT in a browser (chatgpt.com). A Plus, Pro, Business, Enterprise or Edu plan is required.
  2. Turn on developer mode once: Settings → Apps → Advanced settings → Developer mode.
  3. Open Settings → Connectors and click Create.
  4. Fill in the form: Name (anything), Description (one line about what the service does), MCP server URL (copy it below).
  5. Under Authentication choose OAuth if the service requires sign-in, otherwise None. Click Create.
  6. In a new chat open + → Apps/Connectors and enable the connector.

OpenAI has renamed this section before (Connectors → Apps/Plugins). If the label differs, search settings for "developer mode". On Business/Enterprise workspaces an admin must allow custom connectors first.

Authorization

On first use ChatGPT opens the service's sign-in window. Sign in and approve access.

How to connect Redact - PII Detection and Redaction to Cursor

The server address to paste into Cursor settings:

https://redact-api--ghdejr11.run.tools

Fastest: click Open in Cursor below and confirm the prompt.

Manually:

  1. In Cursor open Settings → Cursor Settings → MCP and click Add new global MCP server.
  2. Paste the JSON copied below into ~/.cursor/mcp.json (per project: .cursor/mcp.json in the repo root).
  3. Save the file. The server appears in the MCP list; authorize it there if asked.

Authorization

If the service needs sign-in, an authorize button appears next to the server in the MCP list.

Server tool list (3)

Raw names from tools/list. Only developers need these.

redact_piiDeterministically remove PII (emails, phones, credit cards, IBANs, US SSNs, IPv4/IPv6) from text BEFORE sending it to an LLM or storing it. Credit cards are Luhn-validated and IBANs mod-97-validated to avoid false positives. mode: label (default), star, partial (keep last 4), token (stable placeholder).
detect_piiDetect PII in text without modifying it. Returns each entity with its type, value, and character offsets, plus per-type counts. Use to audit a string for compliance or to decide whether it is safe to send onward.
list_pii_typesList the PII entity types and redaction modes this tool supports.