Scale

Scale — connector documentation

• MCP endpoint: https://scale.connectorbay.com/mcp
• REST API: POST https://scale.connectorbay.com/v1/tools/{tool_name}, described by the OpenAPI 3.1 spec at https://scale.connectorbay.com/openapi.json
• Transport: Streamable HTTP, stateless, MCP specification 2025-06-18 or later
• Authentication: none required. An optional Authorization: Bearer <key> raises rate limits.
• Health: https://scale.connectorbay.com/health · Tool schemas: https://scale.connectorbay.com/tools.json
• Publisher: Unify Dynamics LLC · connectorbay.com/scale · agent@connectorbay.com

What Scale is for

The math every cook reaches for mid-recipe — scale this up to feed twelve, how many tablespoons in 2/3 cup, what's 350F in Celsius (and on my gas oven's dial), how many grams is a cup of flour, will a 9x13 pan work instead of two 9-inch rounds, how do I adjust the bake time for a bigger pan — answered with real arithmetic and verified conversion factors, not a guess.

What it does

scale_recipe scales a list of ingredients by a factor, or to a target yield given the recipe's original yield, by real proportional math. convert_volume and convert_weight convert between US customary and metric units using exact conversion factors (US NIST-defined volume units; avoirdupois weight units). convert_temperature converts between Fahrenheit, Celsius and UK gas mark, using the standard published gas-mark table, and always returns the nearest gas-mark equivalent. ingredient_volume_to_weight converts a cup/tablespoon/etc. measurement of a common baking ingredient (flour, sugar, butter, oil, milk, honey, cocoa, ...) to grams and ounces using that specific ingredient's published density, since a cup of flour and a cup of honey weigh very different amounts. pan_area_calculator computes a pan's baking-surface area from real geometry (rectangular, square, round, or a bundt annulus approximation). pan_substitution_guide uses pan_area_calculator internally to find equivalent-area pan substitutions from a table of common named pan sizes, and solves the exact round or square dimension that matches. cooking_time_adjustment_guide gives general, hedged guidance on how a pan-size change affects bake time and temperature. kitchen_math_glossary defines about a dozen kitchen-math terms.

What it is not

Not a recipe database or a nutrition calculator. The unit conversions, ingredient density figures, and gas-mark table are real, verified numbers (conversion factors from standard US customary/avoirdupois definitions; the gas-mark table from the standard published cookery conversion; ingredient cup-weights from King Arthur Baking's published chart) -- but ingredient weight varies by brand, humidity and measuring technique (spoon vs. scoop), and cooking_time_adjustment_guide is explicitly a starting estimate, not a precise prediction. Always confirm doneness by toothpick, thermometer or visual cue rather than the clock alone.

Tools

Recipe scaling

scale_recipe — Scale a recipe's ingredient amounts by a factor, or to a target yield given the recipe's original yield -- real proportional arithmetic (scaled_amount = amount x factor). Use for "scale this recipe to serve 12 instead of 4", "make 1.5x this recipe", "double this recipe". Args: ingredients, factor, target_yield, original_yield.

Unit conversion

convert_volume — Convert between US customary volume units (teaspoon, tablespoon, fluid ounce, cup, pint, quart, gallon) and metric (mL, L), using exact US-customary conversion factors. Use for "how many tablespoons in 2/3 cup", "convert 500ml to cups". Args: amount, from_unit, to_unit.

convert_weight — Convert between avoirdupois weight units (ounce, pound) and metric (gram, kilogram), using exact conversion factors. Use for "convert 8oz to grams", "how many pounds is 2.5kg". Args: amount, from_unit, to_unit.

convert_temperature — Convert between Fahrenheit, Celsius, and UK gas mark (using the standard published gas-mark table, not a formula), always returning the nearest gas-mark equivalent alongside F and C. Use for "convert 350F to Celsius", "what's gas mark 4 in Fahrenheit", "convert 180C to gas mark". Args: value, from_unit, to_unit.

Ingredients

ingredient_volume_to_weight — Convert a volume measurement of a common baking ingredient to weight (grams and ounces), using that specific ingredient's published density (grams per US cup) -- real ingredient-specific conversion, since a cup of flour and a cup of honey weigh very different amounts. Use for "how many grams is 2 cups of flour", "convert 1/2 cup butter to grams". Args: ingredient, volume_amount, volume_unit.

Pans

pan_area_calculator — Compute a pan's baking-surface area in square inches from real geometry: rectangular (length x width), square (side^2), round (pi x radius^2), or bundt approximated as an annulus (pi x [outer_radius^2 - tube_radius^2]). Use for "what's the area of a 9x13 pan", "area of a 10-inch round cake pan". Args: shape, dimensions.

pan_substitution_guide — Find equivalent-area pan substitutions for a given pan: computes the original pan's area (via pan_area_calculator), compares it against a table of common named pan sizes, and -- for a round or square target -- solves the exact dimension that matches the original area precisely. Use for "I have a 9x13 pan but the recipe calls for two 9-inch rounds, will that work", "what round pan is equivalent to an 8x8 square". Args: original_shape, original_dimensions, target_shape.

cooking_time_adjustment_guide — General, hedged guidance on how a pan-size change affects bake time and oven temperature, keyed on the ratio of new pan area to original pan area -- a bigger/shallower pan generally bakes faster, a smaller/deeper pan generally needs more time and sometimes a lower temperature. A starting estimate, not a precise prediction -- always confirm doneness. Use for "I'm using a bigger pan than the recipe calls for, how should I adjust the bake time". Args: area_ratio.

Reference

kitchen_math_glossary — Definitions of common kitchen-math terms: yield, scaling factor, mise en place, baker's percentage, reduction ratio, volume vs. weight measurement, packed vs. unpacked, rounding, pan capacity, doneness, sifting, and room-temperature ingredient prep. Use for "what does baker's percentage mean", "what's a reduction ratio". Args: term.

Conventions

• Read-only. Every tool reads public data or computes; nothing is written anywhere and nothing about the user is stored.
• Result envelope. ok: true with data, or ok: false with a structured error (bad_input, not_found, upstream_error). degraded lists optional sources that were unreachable.
• Rate limits. Free tier 60 tool calls/minute and 300/day per user (keyed on the user identifier supplied by the host agent, else client IP); Pro keys raise this. Over-limit calls return HTTP 429 with Retry-After. initialize and tools/list are never counted.

Support

agent@connectorbay.com · connectorbay.com/scale/support

Scale — Privacy Policy

Effective 24 September 2026. Unify Dynamics LLC ("we", "us"), Menlo Park, California.

What Scale is. Scale is a connector (an MCP server and REST API) that AI assistants and personal agents call on your behalf for recipe scaling, unit conversion, and kitchen-math calculators: recipe scaling, volume/weight/temperature conversion, ingredient volume-to-weight conversion, pan-area calculation and substitution, and cooking-time-adjustment guidance. You interact with your assistant; the assistant sends us only the arguments needed for that one calculation or lookup.

What we receive. The arguments of each tool call — ingredient names and amounts, a unit or conversion request, a pan shape and its dimensions, a temperature value, or a glossary term — the technical headers needed to serve the request (an IP address or a client identifier supplied by the assistant, and a Pro API key if you have one), and standard server logs.

Everything is answered by local arithmetic or a bundled reference file, and nothing is stored. No request is forwarded to any third party — there is no upstream call at all, live or otherwise — and no query is logged in request bodies, recorded, or used to train anything.

What we do not receive or store. We do not receive your conversation with the assistant or your name, and we do not build a profile from your queries: each request is answered independently and nothing carries over between requests. Rate-limit counters (a client identifier and timestamps) are held in memory for at most 24 hours. Hosting-provider access logs, which contain IP addresses and request paths but not request bodies, are retained for up to 30 days for security and abuse prevention.

Sub-processors. None — every calculation and every reference fact is computed or read locally. Hosting: Vercel (United States regions).

Legal bases and your rights. Our processing is necessary to provide the service you request through your assistant. Because we store no personal data beyond short-lived logs, requests to access, correct or delete personal data are usually satisfied automatically; you can still contact agent@connectorbay.com and we will respond within 30 days. We do not sell or share personal information and do not use your data to train models.

Children. Scale is a general-audience service operated by the adult using the assistant.

Changes. We will post changes here with a new effective date.

Scale — Terms of Service

Effective 24 September 2026. These terms govern use of the Scale connector ("the Service") operated by Unify Dynamics LLC ("we", "us").

1. The Service. Scale returns recipe-scaling, unit-conversion, and kitchen-math calculations and reference information — recipe scaling by factor or target yield, volume/weight/temperature conversion with a gas-mark lookup, ingredient volume-to-weight conversion, pan-area calculation and substitution, and cooking-time-adjustment guidance — computed locally or read from a bundled reference file verified as of build time. It is accessed through an AI assistant or directly over MCP or HTTP.
2. General guidance, not a guarantee. Scale is an independent kitchen-math calculator and reference, not a professional culinary consultation and not affiliated with any appliance, cookware, or flour brand. Ingredient weight varies by brand, humidity, and measuring technique; cooking-time-adjustment guidance is a general starting estimate, not a precise prediction of a particular oven's result. Treat every figure as a starting point to confirm by observation (a toothpick, a thermometer, a visual cue), not a promise of a particular outcome.
3. Facts change slowly, but do change. Ingredient formulations and packaging can shift by brand and over time; always check an ingredient's own label when precision matters.
4. Acceptable use. Automated use within the published rate limits is welcome.
5. Availability. The Service is provided "as is" without warranty. We may change, limit or discontinue it at any time.
6. Data. Our Privacy Policy describes what we process. In short: your query is answered by local arithmetic or a bundled reference file, and nothing is stored.
7. Pro keys. Optional Pro API keys are issued at our discretion, are personal to the holder and may be revoked for abuse.
8. Liability. To the fullest extent permitted by law, Unify Dynamics LLC is not liable for any loss arising from use of or reliance on the Service, including a cooking outcome. Our total liability is limited to US $100.
9. Governing law. California law; venue in San Mateo County, California.
10. Contact. Unify Dynamics LLC · agent@connectorbay.com · https://connectorbay.com/scale

Scale support

Email agent@connectorbay.com. We answer within two business days.

• MCP endpoint: https://scale.connectorbay.com/mcp
• REST API: https://scale.connectorbay.com/openapi.json
• Live status: https://scale.connectorbay.com/health

When you report a problem, include the question you asked your agent, roughly when, and which agent you used (for example Claude, ChatGPT or Gemini). Never send us passwords, account numbers or ID numbers. Scale never asks for them.