EU PII Redaction MCP server

eu-pii-redact

Keep European personal data out of LLM prompts and logs, and put it back in the answer. Python client, LangChain integration and MCP server for the EU PII Redaction API.

<!-- mcp-name: io.github.JulianJohansen/eu-pii-redact -->

Hi, my name is Karina Dahl. I was charged twice for order 88412.
Please refund to DK50 0040 0440 1162 43 or call me on +45 32 12 34 56.
Karina

becomes

Hi, my name is [PERSON_1]. I was charged twice for order 88412.
Please refund to [IBAN_1] or call me on [PHONE_1].
[PERSON_1]

first name from 140,000 European names. "Best Practices" and "Court of Justice" stay as they are.

• Names from evidence, not capital letters: titles, greetings, roles, Name: labels, sign-offs, or a

(personnummer, HETU, DNI/NIE, codice fiscale, NIR, PESEL, BSN, CPR, ...).

• National ID numbers from 21 EU/EEA countries, checked by check digit and birth date

• IBANs (mod-97), cards (Luhn), EU VAT numbers, emails, phones (with + prefix), IPs.
• Every mention of a person shares one placeholder; order and invoice numbers stay untouched.

You need a RapidAPI key with a plan for the API. The free plan gives 500 requests a month. Set it as RAPIDAPI_KEY.

Python

pip install eu-pii-redact

from eu_pii_redact import Redactor

with Redactor() as r:                       # reads RAPIDAPI_KEY
    redaction = r.redact(ticket)
    reply = ask_llm(redaction.text)         # the model only sees placeholders
    print(redaction.restore(reply))         # real values back in the answer

redaction.entities lists each finding with its type, offsets in the original text and placeholder (national IDs also carry country and scheme). Texts longer than 50,000 characters are sent in pieces with consistent placeholders. r.redact(text, types=["EMAIL", "IBAN"], mode="mask") masks with asterisks.

LangChain

pip install "eu-pii-redact[langchain]"

from eu_pii_redact.langchain import protect, PIIRedactionTransformer

safe_llm = protect(llm)   # any model or chain that takes a string
safe_llm.invoke("Draft a reply to Karina Dahl about her refund to DK50 0040 0440 1162 43")
# the model sees [PERSON_1] and [IBAN_1]; the returned message has the real values again

docs = PIIRedactionTransformer().transform_documents(docs)   # e.g. before indexing for RAG

MCP server

Lets an AI assistant redact text and, more importantly, files without reading them: redactfile reads and writes the file itself and only reports counts, so the personal data never enters the conversation. restorefile puts the values back locally.

Claude Desktop (one click): download eu-pii-redact-0.1.0.mcpb from the latest release, open it, and paste your RapidAPI key when asked. The bundle sources are in mcpb/.

Claude Code

claude mcp add eu-pii-redact -e RAPIDAPI_KEY=your-key -- uvx eu-pii-redact

Claude Desktop / Cursor / other hosts (mcpServers config)

{
  "mcpServers": {
    "eu-pii-redact": {
      "command": "uvx",
      "args": ["eu-pii-redact"],
      "env": { "RAPIDAPI_KEY": "your-key" }
    }
  }
}

Postman

Import postman/eu-pii-redaction.postmancollection.json, set the collection variable rapidapikey, and send: four requests with example responses and built-in tests.

Limits

Shortened. The full README is on GitHub.