Redacta MCP

Install

Works with Claude Code, Codex, VS Code, Cursor, Windsurf, Claude Desktop. Read the repository before you give any tool access to your data.

npx agentmarket install connector/nickjlamb-redacta-mcp

About

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Permissions

What this server can do and what it asks for, from its tool list, install config and code. Checked Oct 25, 2026.

Tools

5 read · 1 write · 2 delete

Secrets

None asked for

Install scripts

None found

Runs as

Node.js package

Tools (8)

Read from the source code; the running server may differ. Descriptions are the server’s own words; hidden characters are shown as [U+…].

• check_outputCheck output for leaked identifiersread-only

  Scan generated text for verbatim reappearance of the original values held in a protected session (tolerant of spacing, dashes and case for identifier-like values) and re-tokenise anything found. Returns which token categories leaked — never the raw values — plus the sanitised text and a general self-check. Scope is verbatim reappearance only: paraphrases and inferred identities are not detected.

• discard_sessionDiscard a protection session

  Delete a session's private mapping immediately instead of waiting for expiry. Idempotent. After this, no restoration is possible for that session.

• protectProtect text (mapping stays server-side)

  Redact patient identifiers and PII, replacing each distinct value with a labelled token ([NHS_NUMBER_1], [PATIENT_NAME_1], ...). The reversal mapping is kept privately inside the Redacta server and is NEVER included in this response — you receive only the protected text, an opaque session_id for later controlled restoration, a count of what was replaced, and a self-check of possible leftovers. Sessions expire automatically.

• redactRedact / pseudonymise text (legacy — exposes token map)read-only

  LEGACY: like protect, but returns the token_map (token -> original value) in the response, which places the reversal key in the client and potentially the model context. Kept for backward compatibility and client-managed workflows. Prefer protect, which keeps the mapping server-side.

• reinstateRe-identify from a client-held token map (legacy)read-only

  LEGACY: reverse a redaction using a token map held by the client (from the legacy redact tool). Restored personal data will appear in this tool result. For session-based restoration that keeps mappings server-side, use protect + release_to_file.

• release_to_clientRestore identifiers into this conversation (trusted mode)read-only

  WARNING: returns re-identified text directly in the tool result, so restored personal data WILL enter the MCP client and potentially the model context. Only use in trusted environments. This tool is only available because the server operator enabled it (REDACTA_RELEASE=client or both). Prefer release_to_file.

• release_to_fileRestore identifiers into a local file

  Restore original identifiers into text produced from a protected session, writing the result to a file inside the server's configured release directory (REDACTA_RELEASE_DIR). Returns only a receipt — file path, size, and counts — so restored data never enters the model context. This is the privacy-preserving way to complete the round trip.

• self_checkSelf-check for residual identifiersread-only

  Scan already-redacted text for anything that still looks like an identifier (long numbers, emails, postcodes, URLs). A second pair of eyes, not a guarantee. Returns a list of possible leftovers to review.

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Signals

Stars

8

Forks

0

Open issues

0

Last commit

Oct 6, 2026 (22 days ago)

Last release

Oct 6, 2026 (22 days ago)

From GitHub (fetched Oct 24, 2026).

Details

Registry name

io.github.nickjlamb/redacta-mcp

Version

2.1.1

Auth

No auth

Packages

npm redacta-mcp

License

MIT-0

Repository

github.com/nickjlamb/redacta

First seen

Oct 24, 2026

Last checked

Oct 24, 2026

Source

Official MCP Registrygithub-graphql