Phrase Flip
NPM · PHRASEFLIP-MCP
Privacy-first local phrase-flipped translation for AI chat clients.
Available components
Last scanned (18 hours ago)
Scores higher than 43% of npm servers
Category Education and Research
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 Security81
- No malware found by supply-chain analysis.Pass
- CVE check failed: a known high-severity CVE affects zod 3.25.76, a direct dependency. A fixed version is available. View diagnostics → Fail
- No install/post-install scripts declared.Pass
- 44 of 182 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 145 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 Management77
- Stability observed for 23 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
Checks we ran (16)
- Malware scan
- Known CVEs
- Install scripts
- Dependency health
- Source repository
- Provenance
- License
- Maintenance
- Schema quality
- Stability
- Tool coverage
- Injection markers
- Destructive annotations
- Judged manipulation
- MCP protocol
- Capabilities
Checks we could not complete (1)
These are gaps on our side, not findings about this package. We only credit what we can confirm, so a category made up entirely of them scores 0.
- Security disclosure in Provenance & TransparencySecurity-disclosure policy not yet verified: we couldn't inspect the source repository.
Does not apply to this package (2)
- Endpoint SecurityScored on hosted endpoints only. A package has no live endpoint of its own for us to probe.
- Transport & ReachabilityScored on hosted endpoints only. A package has no live endpoint of its own for us to probe.
The score does not measure everything. What the score does not measure →
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.
- 5 Nov 26 −4
- Stability: pass → 0.77 functional
- 30 Oct 26 +1
- Stability: 0.97 → pass security
- 29 Oct 26 −1
- Stability: pass → 0.97 functional
- 24 Oct 26 −5
- CVE-2023-54404 affects this package: high ▼ security
- Known CVEs: pass → fail ▼ security
- 23 Oct 26 0
- Stability: 0.97 → pass security
- 22 Oct 26 0
- Stability: pass → 0.97 functional
- 16 Oct 26 0
- Stability: 0.97 → pass security
- 15 Oct 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.
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 5 Nov 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 →
Vulnerabilities 1 finding
| ID | CVE | Severity | Vector | Fix available |
|---|---|---|---|---|
| GHSA-mrhx-c7xc-m3w5 | CVE-2023-54404 | high | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | yes |
Background: What a vulnerability scan can and cannot prove →
Dependencies 182 packages
| Packages resolved | 182 |
|---|---|
| Stale | 43 |
| No linked repository | 1 |
| Tree resolution | Complete |
Background: SBOMs and build attestations, explained →
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 →
phrase_flip PhraseFlip ~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).
| Name | Type | Req | Description |
|---|---|---|---|
| force | boolean | – | Internal: bypass the auto-flip-off check (used by the "Flip anyway" button). |
| intensity | number | – | Percent of sentences to flip (0-100). Defaults to 25. |
| target | string | – | Target language (code like "es" or name like "Spanish"). Defaults to the user preference. |
| text | string | yes | The English text to phrase-flip. |
No output schema declared.
No examples provided.
set_preferences PhraseFlip 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).
| Name | Type | Req | Description |
|---|---|---|---|
| auto | boolean | – | Whether PhraseFlip may auto-render flip cards. false = show a graceful opt-in card instead. |
| defaultTarget | string | – | Default target language code or name (e.g. "fr" or "French"). |
No output schema declared.
No examples provided.
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
claude mcp add oneill9-phraseflip-mcp -- npx -y phraseflip-mcp
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 72 out of 100 on VerifyMCP. We recorded 1 known advisory against it as of 5 November 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 5 November 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.
What did VerifyMCP test on the Phrase Flip MCP server?
VerifyMCP ran 16 checks on Phrase Flip, covering Malware scan, Known CVEs, Install scripts, Dependency health and 12 more. One item could not be completed, a gap on our side rather than a finding about Phrase Flip: Security disclosure. Endpoint Security and Transport & Reachability do not apply to an npm package, so they were not tested. The score does not measure everything, and the scoring documentation lists what it leaves out.