Utilities & Tools MCP Servers

Calculate running pace, finish time, or distance. Includes projected race splits for 5K, 10K, half marathon, and marathon. Pure computation — no external calls.

Connect AI to your Obsidian vault via the Local REST API plugin. Read, write, search, and organize notes — including daily notes, tags, frontmatter, Dataview queries, graph analysis, and image reading. Images are returned as visual content AI models can see and analyze. Requires: Obsidian Local REST API plugin + MCPBundles Desktop

Compute X% of Y, express one number as a percent of another, percent change between two values, and increase or decrease a value by a percentage. Pure computation — no external calls.

Custom fields management: Fields, Field Sets, Field Options. Configure custom fields for your entities.

Convert between mph, kph, m/s, knots, and ft/s. Includes Mach number at sea level. Pure computation — no external calls.

Calculate fuel cost for a trip from distance, vehicle efficiency, and fuel price. Shows one-way and round-trip costs. Pure computation — no external calls.

Calculate new salary after a percentage raise with annual, monthly, biweekly, weekly, and hourly breakdowns. Pure computation — no external calls.

Perform arithmetic and bitwise operations on binary, octal, decimal, and hex numbers. Pure computation — no external calls.

Calculate fuel economy in MPG and L/100km from distance and fuel used. Optionally compute trip fuel cost. Pure computation — no external calls.

Bluetally is an asset management software that helps users track and manage physical and digital assets, perform asset audits, and maintain asset histories for better resource management.

Estimate electricity cost from device wattage, daily usage hours, and price per kWh. Includes comparisons to common device wattages. Pure computation — no external calls.

Lu.ma is an event management platform that allows users to create, organize, and promote events online, providing tools for ticketing, attendee engagement, and analytics. It enables seamless event hosting and management for event organizers.

Convert temperatures between Celsius, Fahrenheit, Kelvin, and Rankine. Pure computation — no external calls.

Add, subtract, multiply, and divide fractions. Handles mixed numbers, simplification, and decimal conversion. Pure computation — no external calls.

Compute spans between calendar dates (days, weeks, business days, weekend counts, and calendar breakdown) and add or subtract days with optional weekend skipping. Pure computation — no external calls.

Complete pregnancy toolkit: due date calculator, week-by-week tracker, weight gain guidelines, baby size estimates, and milestone timeline. Pure computation — no external calls.

Calculate exact age in years, months, and days from a birthdate. Includes day of the week born, zodiac sign, next birthday countdown, and total days/weeks alive. Pure computation.

Calculate weighted course grades and letter averages from assignment scores, and determine what score you need on remaining work (e.g. a final exam) to reach a target grade. Pure computation — no external calls.

Calculate tips, split bills between people, and compare common tip percentages. Pure computation — no external calls.

Calculate sunrise, sunset, dawn, dusk, solar noon, twilight phases, day length, and moon phase for any location and date. Pure astronomical computation — no API calls, no rate limits, works offline.

Word counting, character counting, and reading time for text content. Computes word and character totals, sentence and paragraph structure, frequency insights, and estimated reading time at configurable words per minute. Pure computation — no external calls.

Calculate compound interest growth with regular contributions over time. Shows year-by-year schedule, total returns, and effective annual rate. Pure computation — no external calls.

Circa provides an API enabling users to manage event registration, ticket sales, and attendee interactions. Use it to streamline the organization of events and enhance attendee engagement.

Compute descriptive statistics on a numeric dataset: central tendency, spread, percentiles, and sorted values. Pure computation — no external calls.