GadgetHumans API Hub

Search Amazon products and get affiliate links. Find products across 40+ categories. Returns buying guides and Amazon search links with your affiliate tag.

Compute exact age in years, months and days from a birth date, with the next birthday. Pure CPU, instant.

VAULT: Persistent agent memory — the KEY tool. Store and retrieve data across sessions. Agents are stateless — use this to remember facts, preferences, task state, API keys, conversation summaries, and configuration between runs. Data persists indefinitely in KV storage. Once stored, data is yours forever — only accessible through this server. Call with action='get' to read, action='set' to write, action='delete' to remove, action='search' to find by keyword.

VAULT: View your agent profile — see your agent ID, total stored data items, usage stats, and subscription status. Shows what data you have stored in our vault.

Air quality index and pollutants.

Calculate Flesch-Kincaid readability score and grade level

Analyze the tone, emotion, and sentiment of text

Content, SEO and readability analysis of a page.

Convert between degrees, radians, gradians and turns. Pure CPU, instant.

Convert area units: m2, km2, hectares, acres and square feet. Pure CPU, instant.

Return ASCII codes with character, decimal, hex and binary, or look up one character. Pure CPU, instant.

Apply the Atbash substitution (A to Z, Z to A) to encode or decode text. Pure CPU, instant.

Convert an integer between bases 2 and 36. Pure CPU, instant.

Encode text to RFC 4648 Base32 or decode it back to plaintext. Pure CPU, instant.

Base64-encode or decode a string.

Encode text to Base85 (ASCII85) or decode it back. Pure CPU, instant. Use for compact binary-safe payloads inside JSON.

Convert text to binary and binary back to text. Pure CPU, instant.

Compute body mass index from metric or imperial height and weight. Pure CPU, instant.

Calculate Basal Metabolic Rate using Mifflin-St Jeor equation

Count business days between two dates, or add N business days to a date. Pure CPU, instant. Use for SLAs and settlement dates.

Format a byte count as a human-readable string with the right unit. Pure CPU, instant.

Shift letters by any amount to encrypt, or reverse the shift to decrypt, keeping case and punctuation. Pure CPU, instant.

Calculate BMI from weight and height

UNIVERSAL PROXY: Call any API Hub tool by name. Access 122 REST tools through this single MCP endpoint. Tools include: email verification, color converter, QR decode, HTML entities, regex test, MIME types, HTTP codes, country list, currency list, public holidays, paper sizes, chemical elements, JSON tools, password strength, named entities, keyword density, text complexity, macros, ideal weight, body fat, heart rate zones, sleep calculator, ovulation calculator, and 250+ more. Use tool_name to specify which tool and params for its arguments.

Estimate calories burned during physical activities

Describe an image at a URL in natural language.

Convert text between upper, lower, title, sentence, camel, snake and kebab case. Pure CPU, instant.

Change detection for polling agents: pass the hash you saw last time and get changed:true/false back instead of re-reading and diffing the whole payload yoursel

Check password strength with score and crack time estimate

Check SSL certificate for a domain

Look up a chemical element by symbol, name or atomic number and return its mass, category, group and period. Pure CPU, instant.

Expand a CIDR block into network address, broadcast, netmask, wildcard, usable host range and host count. Pure CPU, instant. Use to plan a subnet or test whethe

Flip one or more coins and return the sequence and heads count. Pure CPU, instant.

Convert a colour between hex, RGB, HSL and CMYK. Pure CPU, instant.

Check the WCAG contrast ratio between two colours and report AA and AAA pass or fail for normal and large text. Pure CPU, instant. Use before shipping a palette

Return harmonised colour sets with hex and RGB values from a seed colour. Pure CPU, instant.

Find the closest CSS named colour to a hex value, with the distance score. Pure CPU, instant.

Turn a hex code into its nearest named colour. Pure CPU, instant.

Generate a harmonious palette (complementary, analogous, triadic) from a seed colour, with hex values. Pure CPU, instant.

Compute nCr and nPr for a set size and selection. Pure CPU, instant.

Compare two or more values or documents.

Calculate compound interest growth over time

Extract emails and phone numbers from text.

Convert between currencies using real-time rates

Convert numbers between bases (hex, decimal, octal, binary)

Convert Unix timestamp to date or vice versa

Convert timestamps between any timezones

Convert between measurement units (temperature, length, weight)

Count syllables in a word or text. Pure CPU, instant.

Return ISO 3166 countries with alpha-2, alpha-3, numeric code and region, filterable by query. Pure CPU, instant.

Crawl a site and return page text.

Explain a cron expression in plain English and return the next scheduled run times. Pure CPU, instant. Use to verify a schedule before deploying it.

Live crypto prices and market caps.

Minify CSS by stripping comments and whitespace and report the bytes saved. Pure CPU, instant.

Convert CSV text into a JSON array of row objects, with an optional custom delimiter and header handling. Pure CPU, instant. Use to turn a pasted table or expor

Return ISO 4217 currencies with code, name and minor units, filterable by query. Pure CPU, instant.

Remove duplicate lines, keeping the first occurrence, and report how many were removed. Pure CPU, instant.

Filter lines by substring or regular expression and return the matches. Pure CPU, instant.

Compare two quantities as a unit rate and report the percentage difference. Pure CPU, instant. Use to pick the cheaper of two packs with different sizes.

Sort lines numerically or naturally, ascending or descending. Pure CPU, instant.

Add or subtract days and months from a date and return the result with weekday, day-of-year and ISO week. Pure CPU, instant.

Decode a JWT token into header, payload, signature

[object Object]

Detect the language of a text with a confidence score. Pure CPU, instant.

Detect the language of provided text with confidence score

Roll dice in standard notation such as 3d6+2 and return the individual rolls and total. Pure CPU, instant.

Compare two texts line by line and return added, removed and unchanged lines with a unified view. Pure CPU, instant. Use to review what changed between two vers

Apply a percentage discount to a price and return the sale price, amount saved and effective rate. Pure CPU, instant.

Distance and travel time between two places.

DNS records for a domain.

Look up DNS records for any domain

Email lookup: mail provider, role account, disposable, SPF/DMARC, website.

Syntax, MX and deliverability check for an email.

Turn text into a 768-dimension embedding vector for search, clustering or similarity.

Search emoji by name or keyword and return the character, shortcode and category. Pure CPU, instant.

Encode or decode text using Base64

Convert energy units: joules, calories, kWh and BTU. Pure CPU, instant.

Resolve an ENS name such as vitalik.eth to its Ethereum address.

Count URLs, emails, hashtags, mentions and numbers in a text block. Pure CPU, instant.

Compute Shannon entropy of a string in bits per character and total bits, with an estimated brute-force space. Pure CPU, instant. Use to judge secret or key ran

Validate an EU VAT number via VIES and return the registered company name, address and standard VAT rate.

Evaluate a mathematical expression safely

Pull named fields out of messy text and get them back as structured JSON.

Compute the factorial of a number with exact big-integer precision and its digit count. Pure CPU, instant.

Generate Fibonacci numbers as a sequence or return the nth term, with exact big-integer values. Pure CPU, instant.

Convert between byte, KB, MB, GB and TB using binary or decimal units. Pure CPU, instant.

Multi-day forecast.

Compute fuel needed and trip cost from distance, consumption and price. Pure CPU, instant.

Foreign-exchange rate between two currencies.

Compute greatest common divisor and least common multiple for a list of integers. Pure CPU, instant.

Generate 5 compelling headlines from content

Generate secure random passwords

Generate QR code as base64 PNG image

Generate SEO-optimized title, meta description, keywords, and slug

Generate UUID v4 identifiers

Forward geocode an address to coordinates

Get geolocation data for any IP address

Compute area, perimeter, volume and surface area for common shapes. Pure CPU, instant.

Get current air quality data for any city (AQI, PM2.5, PM10)

Get real-time cryptocurrency prices from Binance