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Phrase Flip

NPM · PHRASEFLIP-MCP · SCANNED SEP 20

Privacy-first local phrase-flipped translation for AI chat clients.

Available components

npm · phraseflip-mcp 79
+3 this week 79 Trust /100
Trust breakdown (7 categories)

How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. How we score → Why this is hard to score →

Supply Chain Security99
  • No malware found by supply-chain analysis.Pass
  • No known CVEs affecting this package version or its production dependencies.Pass
  • No install/post-install scripts declared.Pass
  • 45 of 183 dependencies flagged as unhealthy. View diagnostics → Partial
Provenance & Transparency19
  • Repository check failed: the declared repository URL returned HTTP 404. See how to fix → View diagnostics → Fail
  • Provenance check failed: no build-provenance attestation is published. See how to fix → View diagnostics → Fail
  • Clear OSI-approved license (MIT).Pass
  • Actively maintained (last published 99 days ago).Pass
  • Security-disclosure policy not yet verified: we couldn't inspect the source repository.Unverified
Schema Quality & AI Usability86
  • 100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).Pass
  • AI-judged instruction clarity (excellent).Pass
  • Tool/resource definitions use about 397 tokens (~132/item across 3 items; 2 tools + 1 resources), lean.Pass
  • Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management83
  • Stability observed for 25 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage100
  • 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
  • 100% of tool parameters carry a description.Pass
Tool Safety100
  • No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
  • We read all 2 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
  • An AI judge read all 3 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
  • Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
  • Supports UI / widget rendering.Pass
Install

How do I install the Phrase Flip MCP server?

Phrase Flip runs locally as an npm package, launched with npx -y phraseflip-mcp. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.

npm · phraseflip-mcp

# add to Claude Code
claude mcp add oneill9-phraseflip-mcp -- npx -y phraseflip-mcp
// .cursor/mcp.json
{
  "mcpServers": {
    "oneill9-phraseflip-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "phraseflip-mcp"
      ]
    }
  }
}
// .vscode/mcp.json
{
  "servers": {
    "oneill9-phraseflip-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "phraseflip-mcp"
      ]
    }
  }
}
# add to Codex CLI
codex mcp add oneill9-phraseflip-mcp -- npx -y phraseflip-mcp
// opencode.json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "oneill9-phraseflip-mcp": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "phraseflip-mcp"
      ],
      "enabled": true
    }
  }
}
# add to OpenClaw
openclaw mcp add oneill9-phraseflip-mcp --command npx --arg -y --arg phraseflip-mcp
# ~/.hermes/config.yaml
mcp_servers:
  oneill9-phraseflip-mcp:
    command: "npx"
    args: ["-y", "phraseflip-mcp"]
// ~/.netclaw/config/netclaw.json
{
  "McpServers": {
    "oneill9-phraseflip-mcp": {
      "Transport": "stdio",
      "Command": "npx",
      "Arguments": [
        "-y",
        "phraseflip-mcp"
      ]
    }
  }
}
# add to Vellum
assistant mcp add oneill9-phraseflip-mcp -t stdio -c npx -a -y phraseflip-mcp
// mcp.json
{
  "mcpServers": {
    "oneill9-phraseflip-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "phraseflip-mcp"
      ]
    }
  }
}
Changelog

Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.

  • 20 Sept 26 +1

    No change was recorded against any check on this day. Stability & Change Management went from 80 to 83. That category is still filling its 30-day observation window: 24 days of observed history at the previous scan, 25 at this one. The score rises as the window fills, whether or not the server changes.

  • 19 Sept 26 −3
    • Stability: pass → 0.80 functional
  • 18 Sept 26 0
    • Stability: 0.97 → pass security
  • 17 Sept 26 +1

    No change was recorded against any check on this day. Stability & Change Management went from 93 to 97. That category is still filling its 30-day observation window: 28 days of observed history at the previous scan, 29 at this one. The score rises as the window fills, whether or not the server changes.

  • 16 Sept 26 +3
    • GHSA-rgj7-g3m4-5g8c no longer affects this package ▲ security
    • GHSA-f88m-g3jw-g9cj no longer affects this package ▲ security
    • CVE-2026-39244 no longer affects this package ▲ security
    • Known CVEs: fail → pass ▲ security
  • 15 Sept 26 +1

    No change was recorded against any check on this day. Stability & Change Management went from 87 to 90. That category is still filling its 30-day observation window: 26 days of observed history at the previous scan, 27 at this one. The score rises as the window fills, whether or not the server changes.

  • 13 Sept 26 +1

    No change was recorded against any check on this day. Stability & Change Management went from 80 to 83. That category is still filling its 30-day observation window: 24 days of observed history at the previous scan, 25 at this one. The score rises as the window fills, whether or not the server changes.

  • 12 Sept 26 −3
    • Stability: pass → 0.80 functional
Diagnostics

Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.

Captured 20 Sept 2026 · Analysed npm/phraseflip-mcp@0.10.0

Provenance No attestation

The registry publishes no build provenance for this version, so there is nothing to verify.

Result No attestation
Ecosystem npm

Background: How many MCP packages publish verified provenance →

Dependencies 183 packages
Packages resolved 183
Stale 44
No linked repository 1
Tree resolution Complete

Background: SBOMs and build attestations, explained →

MCP tools · 2 exposed · ~382 tokens

The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →

Tool Tokens
phrase_flip ~214

Render an interactive "phrase-flipped" card: a subset of the given English text is translated into a target language on the user's machine, with hover-to-reveal for the English originals. Translation is 100% local (no data leaves the device). Use this whenever the user asks to phrase-flip, partially translate, or practice reading text in another language. Supported targets: Spanish (es), French (fr), Greek (el), German (de), Italian (it), Portuguese (pt), Japanese (ja), Korean (ko), Chinese (zh), Dutch (nl), Arabic (ar).

NameTypeReqDescription
forceboolean–Internal: bypass the auto-flip-off check (used by the "Flip anyway" button).
intensitynumber–Percent of sentences to flip (0-100). Defaults to 25.
targetstring–Target language (code like "es" or name like "Spanish"). Defaults to the user preference.
textstringyesThe English text to phrase-flip.

No output schema declared.

No examples provided.

set_preferences ~168

Update PhraseFlip preferences. Call this proactively when the user expresses a preference such as "stop auto-translating" / "turn phrase-flip off" (set auto=false), "translate automatically again" (auto=true), or "default to French" (defaultTarget="fr"). Preferences persist on disk. Supported defaultTarget values: Spanish (es), French (fr), Greek (el), German (de), Italian (it), Portuguese (pt), Japanese (ja), Korean (ko), Chinese (zh), Dutch (nl), Arabic (ar).

NameTypeReqDescription
autoboolean–Whether PhraseFlip may auto-render flip cards. false = show a graceful opt-in card instead.
defaultTargetstring–Default target language code or name (e.g. "fr" or "French").

No output schema declared.

No examples provided.

Common questions

What is the Phrase Flip MCP server?

Phrase Flip is an MCP server listed in the public MCP registry as io.github.oneill9/phraseflip-mcp. Privacy-first local phrase-flipped translation for AI chat clients. This page covers its npm package (phraseflip-mcp).

Is the Phrase Flip MCP server safe to use?

Phrase Flip scores 79 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 20 September 2026. It declares no install or post-install scripts. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.

What tools does the Phrase Flip MCP server expose?

Phrase Flip exposes 2 tools: phrase_flip, set_preferences. Their descriptions and schemas cost roughly 382 tokens of context every time the server is loaded.

Is the Phrase Flip MCP server still maintained?

Phrase Flip is still listed as active in the MCP registry. We last reached this channel on 20 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

What licence is the Phrase Flip MCP server under?

Phrase Flip declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.