Brewers almanack
Brewers Almanack is a brewing knowledge MCP server providing AI assistants with comprehensive brewing data across beer styles, ingredients, off-flavours, water chemistry, recipes, and food pairings.
🍺 Search Beer Styles (
search_styles): Search 85 BJCP beer styles by name, category, or characteristics — returns vital statistics, overall impressions, typical ingredients, and commercial examples.🌿 Search Brewing Ingredients (
search_ingredients): Look up hops, malts, yeasts, and adjuncts by name, type, or characteristic — returns details like alpha acids, colour, attenuation, and flavour profiles.🔬 Diagnose Off-Flavours (
diagnose_off_flavour): Identify what went wrong from taste or aroma descriptions — returns the likely compound, root causes, prevention steps, detection threshold, and styles where the flavour may be acceptable.💧 Match Water Profiles (
match_water_profile): Find brewing water profiles by city name or beer style — returns mineral composition (Ca, Mg, Na, Cl, SO4, HCO3) and style recommendations.📋 Suggest Recipes (
suggest_recipe): Generate a complete beer recipe for a target style — returns grain bill, hop schedule, yeast selection, water profile, and process parameters (with configurable batch size in litres).🍽️ Pairing Guide (
pairing_guide): Get beer and food pairing suggestions by beer style or dish name — returns matches with complement, contrast, and cleanse principles explained.
Ask your AI assistant about beer styles, diagnose off-flavours, build recipes, match water profiles, and pair food (all backed by real brewing data, not hallucinations).
6 tools. Zero config. Works with every MCP-compatible IDE.
Install
npx -y brewers-almanackNo API keys, no network dependencies. All brewing data is embedded.
Add to your IDE
claude mcp add brewers-almanack -- npx -y brewers-almanackAdd to ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%/Claude/claude_desktop_config.json (Windows):
{
"mcpServers": {
"brewers-almanack": {
"command": "npx",
"args": ["-y", "brewers-almanack"]
}
}
}Add to .cursor/mcp.json:
{
"mcpServers": {
"brewers-almanack": {
"command": "npx",
"args": ["-y", "brewers-almanack"]
}
}
}Add to .vscode/mcp.json:
{
"servers": {
"brewers-almanack": {
"command": "npx",
"args": ["-y", "brewers-almanack"]
}
}
}Add to ~/.codeium/windsurf/mcp_config.json:
{
"mcpServers": {
"brewers-almanack": {
"command": "npx",
"args": ["-y", "brewers-almanack"]
}
}
}Add to settings.json:
{
"context_servers": {
"brewers-almanack": {
"command": {
"path": "npx",
"args": ["-y", "brewers-almanack"]
}
}
}
}Related MCP server: Grounded Code MCP
Tools
Tool | Description |
| Search 85 BJCP beer styles by name, category, or characteristics. Returns vital statistics, overall impression, ingredients, and commercial examples. |
| Search hops, malts, yeasts, and adjuncts by name, type, or characteristic. Filter by category or search across all. |
| Identify off-flavours from taste or aroma descriptions. Returns the likely compound, causes, prevention steps, and styles where it may be acceptable. |
| Find brewing water profiles by city name or beer style. Returns mineral composition (Ca, Mg, Na, Cl, SO4, HCO3) and style recommendations. |
| Generate a recipe for a target beer style. Returns grain bill, hop schedule, yeast selection, water profile, and process parameters. |
| Beer and food pairing suggestions. Search by beer style or dish name. Returns matches with complement, contrast, and cleanse principles. |
Example Conversations
"What hops work in a Belgian Dubbel?"
Searches ingredients for hops that complement Belgian styles, returning varieties like Styrian Goldings and Saaz with alpha acid ranges, aromas, and substitutes.
"My beer tastes like butter, what went wrong?"
Diagnoses diacetyl: identifies the compound, explains causes (incomplete fermentation, premature racking), and gives prevention steps (diacetyl rest, healthy yeast pitch).
"Suggest a recipe for a West Coast IPA"
Builds a complete recipe: pale malt base with crystal malt, Centennial/Cascade hop schedule with dry hop additions, American ale yeast, and a Burton-style water profile.
"What food pairs well with a stout?"
Returns pairing suggestions (oysters, chocolate desserts, grilled meats) with principles explaining why each pairing works (complement, contrast, or cleanse).
Data Sources
Dataset | Records | Source | Licence / Basis |
Beer styles | 85 | MIT; BJCP attribution | |
Hops | 113 | MIT | |
Malts | 38 | Compiled from published maltster spec sheets | Factual data |
Yeasts | 33 | Compiled from published yeast lab spec sheets | Factual data |
Adjuncts | 21 | Compiled from brewing literature | Factual data |
Water profiles | 20 | Compiled from brewing literature | Factual data |
Off-flavours | 25 | Compiled from brewing science literature | Factual data |
Food pairings | 23 | Compiled from Cicerone curriculum and pairing guides | Factual data |
Roadmap
See ROADMAP.md for planned features: brewing calculators, recipe intelligence, BeerXML/BeerJSON integration, and a brewing journal.
Contributing
Contributions are welcome, especially data contributions. More hop varieties, yeast strains, regional water profiles, and food pairings make the server more useful for everyone.
git clone https://github.com/gregario/brewers-almanack.git
cd brewers-almanack
npm install
npm run build
npm test # 73 testsRunning locally
claude mcp add brewers-almanack-dev -- node /path/to/brewers-almanack/dist/index.jsSee ROADMAP.md for areas where contributions are most needed.
Licence
Available Tools
11 toolscalculate_ibuCalculate IBUA
Calculate International Bitterness Units using the Tinseth formula. Accepts batch volume, original gravity, and a list of hop additions with weight, alpha acid percentage, and boil time.
Inputs: hop_additions (required), original_gravity (required), batch_volume_litres (required).
calculate_water_additionsCalculate Water AdditionsB
Calculate mineral salt additions needed to adjust brewing water from a source profile to a target profile. Supports named profiles or custom ion values.
Inputs: volume_litres (required), source_sodium, target_sodium, source_calcium, +11 more.
check_geb_stockCheck GEB StockA
Check GetErBrewed.com custom kit builder inventory for ingredient availability and pricing. Data is updated weekly. If an item is out of stock, suggests substitutions.
Inputs: query (required), category.
diagnose_off_flavourDiagnose Off-FlavourA
Diagnose beer off-flavours from taste or aroma descriptions. Returns the likely compound, causes, prevention steps, detection threshold, and styles where it may be acceptable.
Inputs: description (required).
match_water_profileMatch Water ProfileA
Find brewing water profiles by city name or beer style. Returns mineral composition (Ca, Mg, Na, Cl, SO4, HCO3) and style recommendations.
Inputs: query (required).
pairing_guidePairing GuideA
Get beer and food pairing suggestions. Search by beer style or dish name. Returns pairing matches with complement, contrast, and cleanse principles.
Inputs: query (required).
review_recipeReview RecipeA
Review a beer recipe against BJCP style guidelines. Checks OG, FG, IBU, SRM, and ABV against the style's vital statistics and returns a scorecard.
Inputs: fg (required), og (required), abv (required), ibu (required), +2 more.
search_ingredientsSearch Brewing IngredientsA
Search brewing ingredients (hops, malts, yeasts, adjuncts) by name, type, or characteristic. Returns detailed properties like alpha acids, colour, attenuation, and flavour profiles.
Inputs: query (required), category.
search_stylesSearch Beer StylesA
Search BJCP beer styles by name, category, or characteristics. Returns vital statistics, overall impression, typical ingredients, and commercial examples.
Inputs: query (required).
suggest_recipeSuggest RecipeA
Suggest a beer recipe for a target style. Returns grain bill, hop schedule, yeast selection, and process parameters.
Inputs: style (required), batch_size_litres.
suggest_substitutionSuggest Ingredient SubstitutionA
Find substitutes for a brewing ingredient (hop, malt, or yeast). Suggests alternatives with similar characteristics, showing key properties for comparison.
Inputs: ingredient (required), role, style.
Tool Schema Changelog
Recent tool additions, removals, and schema changes observed during successful MCP inspections.
Loading tool schema changelog…
TDQS
Scored across 11 tools
Each tool targets a distinct aspect of brewing: calculations, recipe management, ingredient lookup, style guidelines, off-flavor diagnosis, food pairing, and stock checking. No two tools have overlapping purposes.
All tool names follow a consistent verb_noun pattern in snake_case (e.g., calculate_ibu, search_styles, suggest_recipe), making it easy to infer each tool's function.
With 11 tools, the server covers the core needs of a brewing almanac without being overwhelming. Each tool has a clear role and justifies its inclusion.
The tool set covers major brewing domains (recipe creation, evaluation, ingredient info, water chemistry, troubleshooting, pairing), but lacks tools for mash pH calculations or fermentation management, which are minor gaps for a general almanac.
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