Percolate
NPM · PERCOLATE-MCP · 2 COMPONENTS
Search the Percolate specialty coffee database: 1,100+ coffees with brew recipes and pairings.
Available components
Last scanned (5 hours ago)
Scores higher than 55% of npm servers
Category Entertainment and Games
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
- 30 of 95 dependencies flagged as unhealthy. View diagnostics → Partial
Provenance & Transparency45
- Source repository is publicly reachable at the declared URL. View diagnostics → Pass
- 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 49 days ago).Pass
- Security-disclosure policy not yet verified: we couldn't inspect the source repository.Unverified
Schema Quality & AI Usability81
- AI-judged instruction clarity (excellent).Pass
- Tool/resource definitions use about 804 tokens (~100/item across 8 items; 8 tools + 0 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 8 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 8 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
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 −3
- Security disclosure: fail → unverified ▼ functional
- Stability: pass → 0.77 functional
- 24 Oct 26 −5
- CVE-2023-54404 affects this package: high ▼ security
- Known CVEs: pass → fail ▼ security
- Stability: 0.97 → pass security
- 23 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.
- 22 Oct 26 −1
- Stability: pass → 0.93 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.
- 13 Oct 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.
- 12 Oct 26 0
- Security disclosure: unverified → fail ▼ functional
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/percolate-mcp@1.0.2
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 95 packages
| Packages resolved | 95 |
|---|---|
| Stale | 30 |
| 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 →
compare_coffees Compare two coffees ~64
Side-by-side comparison: roast, body/acidity/sweetness, shared and distinct flavors, brew methods, and price difference.
| Name | Type | Req | Description |
|---|---|---|---|
| coffee_a | string | yes | First coffee — id or name |
| coffee_b | string | yes | Second coffee — id or name |
No output schema declared.
No examples provided.
dial_in_suggestion Dial in this coffee ~86
Brew guidance for a specific coffee: curated recipes from the Percolate catalog (ratio, temperature, grind) when available, or a roast-based starting point. Optionally scoped to your brew method.
| Name | Type | Req | Description |
|---|---|---|---|
| brew_method | string | – | Your brewer, e.g. 'V60', 'espresso', 'french press' |
| coffee | string | yes | Coffee id or name |
No output schema declared.
No examples provided.
find_similar Find similar coffees ~72
Coffees with a similar profile to a given one, ranked by shared flavor notes and roast/body/acidity/sweetness proximity. Deterministic scoring over Percolate's structured tasting data.
| Name | Type | Req | Description |
|---|---|---|---|
| coffee | string | yes | Coffee id or name |
| limit | integer | – | Max results (default 5) |
No output schema declared.
No examples provided.
get_coffee Get coffee details ~79
Detailed record for one coffee: roast level, body/acidity/sweetness profile, flavor notes, suited brew methods, food and brew pairings, price, and retailer links. Accepts a Percolate id or a name.
| Name | Type | Req | Description |
|---|---|---|---|
| id_or_name | string | yes | Coffee id or a name like 'Bean Box Taste of New York City' |
No output schema declared.
No examples provided.
get_recommendations Get personalized recommendations ~141
Personalized coffee picks from flavor preferences (e.g. 'chocolate', 'berry', 'caramel'), a budget in USD, roast preference, and the brew gear you own.
| Name | Type | Req | Description |
|---|---|---|---|
| brew_method | string | – | What you brew with, e.g. 'espresso', 'pourover' |
| budget | number | – | Max price in USD per bag |
| limit | integer | – | Max results (default 5) |
| preferences | array | yes | Flavors the drinker enjoys, e.g. ['chocolate','caramel','nutty'] |
| roast_level | string | – | Roast level to filter by; omit to include all roasts |
No output schema declared.
No examples provided.
search_coffees Search the Percolate catalog ~183
Search 1,100+ curated specialty coffees in the Percolate database. Filter by category (espresso, single_origin, blend, decaf, dark), roast level, brew method, and price (USD). Returns tasting profiles, brew methods, and where-to-buy links.
| Name | Type | Req | Description |
|---|---|---|---|
| brew_method | string | – | e.g. 'espresso', 'pourover', 'french press', 'drip' |
| category | string | – | Coffee category to filter by; omit to search all |
| limit | integer | – | Max results (default 10) |
| price_max | number | – | Maximum price in USD |
| price_min | number | – | Minimum price in USD |
| query | string | – | Free-text search: coffee or roaster name |
| roast_level | string | – | Roast level to filter by; omit to include all roasts |
No output schema declared.
No examples provided.
trending_coffees Trending coffees ~63
Coffees Percolate users are adding to their collections most over the last 30 days (falls back to catalog popularity when live activity data is unavailable). The method used is labeled in the response.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | – | Max results (default 10) |
No output schema declared.
No examples provided.
what_to_brew What should I brew? ~116
A coffee suggestion for right now, based on time of day (evening picks lean decaf), mood, and the brew method you're using — scored over Percolate's tasting profiles.
| Name | Type | Req | Description |
|---|---|---|---|
| brew_method | string | – | What you're brewing with |
| mood | string | – | e.g. 'need focus', 'lazy weekend', 'something comforting', 'adventurous' |
| time_of_day | string | – | When the coffee will be drunk — shifts the pick toward lighter or lower-caffeine options later in the day |
No output schema declared.
No examples provided.
How do I install the Percolate MCP server?
Percolate runs locally as an npm package, launched with npx -y percolate-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 · percolate-mcp
claude mcp add bguillow-rgb-percolate -- npx -y percolate-mcp
What is the Percolate MCP server?
Percolate is an MCP server listed in the public MCP registry as io.github.bguillow-rgb/percolate. Search the Percolate specialty coffee database: 1,100+ coffees with brew recipes and pairings. This page covers its npm package (percolate-mcp).
Is the Percolate MCP server safe to use?
Percolate scores 77 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 Percolate MCP server expose?
Percolate exposes 8 tools: search_coffees, get_coffee, find_similar, get_recommendations, compare_coffees, and 3 more. Their descriptions and schemas cost roughly 804 tokens of context every time the server is loaded.
Is the Percolate MCP server still maintained?
Percolate 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 Percolate MCP server under?
Percolate declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.