286 Services from api.24klabs.ai

Prices European call/put options (fair value + Greeks) using Black-Scholes, with optional implied volatility solve from a market price.

Parses a 5/6-field cron expression or @macro into a plain-English summary, per-field breakdown, and the next N scheduled run times from a given base time and UTC offset.

Performs CIDR math for IPv4/IPv6 addresses: computes network, broadcast, netmask, wildcard, prefix, usable host range and count, supports mask-to-prefix conversion, optional contains check, and subnet splitting.

Validates and decodes financial identifiers: IBAN checksum and country/BBAN, US ABA routing numbers, SWIFT/BIC format, and credit/debit card numbers via Luhn check with network detection.

Parses a cron expression and returns the next scheduled run times along with a human-readable description of the schedule.

Converts a text address or place name into geographic coordinates (latitude and longitude)

Converts a natural language question into a SQL query using AI

Rotate and/or flip an image, returning the transformed result as a base64-encoded PNG/JPEG/WEBP/etc.

Fills a PDF form with provided field values and returns the completed PDF as a base64-encoded string along with a list of filled field names.

Validates a cryptocurrency address for correctness, checksum validity, and chain type (e.g. EVM)

Performs an AI-powered security audit of code, identifying vulnerabilities with CVSS scores and detailed findings, paid per-request with USDC on Base L2.

Converts an Annual Percentage Rate (APR) to Annual Percentage Yield (APY) and computes projected future value given a principal amount.

Returns current AQI, PM2.5, PM10, and ozone levels for any US or European latitude/longitude coordinate via Open-Meteo air quality data.

Converts between APR (nominal) and APY (effective) for any compounding frequency, and optionally projects yield on a principal over a time horizon.

Encode or decode strings across base64, base64url, hex, and URL/percent-encoding formats.

Computes European call/put fair value and Greeks (delta, gamma, theta, vega, rho) from spot, strike, days-to-expiry, rate, and volatility; optionally solves for implied volatility given a market price.

Calculates bond price or yield-to-maturity, current yield, Macaulay duration, modified duration, and convexity from coupon rate, face value, maturity, and coupon frequency.

Computes clean bond price, yield-to-maturity, current yield, Macaulay duration, modified duration, and convexity from coupon rate, face value, maturity date, and coupon frequency.

Add or subtract business days to/from a date, or count working days between two dates, with weekend and custom holiday awareness.

Add or subtract business days to/from a date, or count working days between two dates, with weekend and custom holiday awareness.

Computes CAGR, total return, annualized volatility, Sharpe ratio, and maximum drawdown from a value series or start/end/years inputs

Computes CAGR, total return, annualized volatility, Sharpe ratio, and maximum drawdown from a value series or start/end/years inputs.

Converts text strings between multiple case formats including upper, lower, title, sentence, snake_case, camelCase, kebab-case, and CONSTANT_CASE.

Converts a color between hex, RGB, HSL, HSV, and CMYK formats, and optionally computes the WCAG 2.1 contrast ratio and AA/AAA accessibility compliance against a second color.

Converts a color between hex, RGB, HSL, HSV, and CMYK formats, and optionally computes the WCAG 2.1 contrast ratio and AA/AAA accessibility pass/fail against a second color.

Converts a git diff into a structured Conventional Commits message with type, scope, subject, and body.

Projects the future value of a lump-sum investment plus recurring contributions over time, returning a balance growth curve, total contributed, and total interest earned.

Calculates the future value of a lump sum investment plus recurring contributions over time, returning a balance growth curve, total contributed, and total interest earned.

Converts a plain-English schedule description into a valid cron expression.

Validates and checksums EVM (EIP-55), Bitcoin (base58check and bech32), and Solana addresses, detecting chain type and flagging checksum errors before a transfer.

Removes duplicate rows from CSV text by all columns or a specified subset of key columns, returning cleaned CSV and a removal report.

Removes duplicate rows from CSV text by all columns or a specified subset of key columns, returning cleaned CSV and a removal report.

Computes column-level statistics for a CSV file including inferred type, null count, distinct count, min/max/mean for numeric columns, and sample values.

Profiles a CSV file and returns column-level statistics including inferred type, count, null count, distinct count, min/max/mean for numeric columns, and sample values.

Returns current temperature, wind speed, humidity, and weather conditions for any geographic coordinate pair, powered by Open-Meteo (no API key required).

Validates and lints JSON, YAML, CSV, or XML input, returning a valid flag, the first error location (line/column), and a normalized re-serialized copy when valid.

Validates and lints JSON, YAML, CSV, or XML input, returning a validity flag, error location (line/column), and a normalized re-serialized copy when valid.

Computes the difference between two dates/times in days, hours, minutes, and business days.

Performs date/time arithmetic: diff two datetimes, add/subtract intervals, convert between epoch and ISO-8601, and reformat via strftime patterns.

Performs date/time arithmetic, diff, epoch-to-ISO conversion, and strftime reformatting in a single API call.

Simulates month-by-month debt payoff using snowball (smallest balance first) or avalanche (highest APR first) strategies, returning months-to-debt-free, total interest paid, and interest saved versus paying minimums.

Simulates month-by-month debt payoff using snowball or avalanche strategy, returning months to debt-free, total interest paid, and interest saved versus paying minimums.

Computes descriptive statistics (mean/median/mode, stddev/variance, quartiles/percentiles, z-scores, IQR), flags outliers, and optionally computes Pearson correlation and linear regression against a second data series.

Computes descriptive statistics (mean, median, mode, stddev, variance, quartiles, percentiles, z-scores, IQR), detects outliers, and optionally runs Pearson correlation and linear regression against a second data series.

Resolves A, AAAA, MX, TXT, NS, and CNAME DNS records for a domain using DNS-over-HTTPS via Google.

Extracts the dominant color palette from an image, returning hex color codes with their coverage percentages.

Extracts the dominant color palette from an image and returns hex color codes with their coverage percentages.

Validates an email address for RFC-5322 syntax correctness and flags it as disposable, role-account, or from a free email provider.

Encodes or decodes a string using base64, base64url, base32, hex, URL/percent-encoding, HTML entities, or data-URIs in a single API call.

Encodes or decodes a string using base64, base64url, base32, hex, URL/percent-encoding, HTML entities, or data-URIs in a single API call.

Converts amounts between Ethereum denominations (wei, kwei, mwei, gwei, szabo, finney, ether) using exact integer/decimal arithmetic with no floating-point errors.

Converts amounts between Ethereum denominations (wei, kwei, mwei, gwei, szabo, finney, ether) using exact integer/decimal arithmetic with no floating-point errors.

Converts between wei, gwei, and ether (or arbitrary-decimal ERC20 token amounts) with big-integer precision, and optionally computes USD value from a caller-supplied price.

Converts Ethereum denominations (wei, gwei, ether) or arbitrary-decimal ERC20 token amounts with big-integer precision, and optionally computes USD value from a caller-supplied price.

Computes the keccak256 hash and 4-byte function selector of a Solidity signature string, and optionally ABI-decodes raw hex calldata given an ordered list of static Solidity types.

Computes the keccak256 hash and 4-byte function selector of a Solidity signature string, and optionally ABI-decodes raw hex calldata given an ordered list of static Solidity types.

Explains what a given code snippet does using an AI model, returning a plain-language description

Extracts and deduplicates emails, URLs, IPv4 addresses, @mentions, and #hashtags from free text, returning each entity type with occurrence counts.

Extracts and deduplicates emails, URLs, IPv4 addresses, @mentions, and #hashtags from free text, returning each entity type with occurrence counts.

Computes liquidity, leverage, profitability, and efficiency ratios from supplied financial statement line items

Computes liquidity, leverage, profitability, and efficiency ratios from supplied financial statement line items

Computes MD5, SHA-1, SHA-256, or SHA-512 hash (or HMAC variant with a secret key) of a string, returning both hex and base64 encodings.

Computes MD5, SHA-1, SHA-256, or SHA-512 hash (plain or HMAC with a key) of a string, returning both hex and base64 encodings.

Converts a supplied HTML string to clean Markdown by stripping scripts, styles, and navigation while preserving semantic content elements.

Converts a supplied HTML string to clean Markdown by stripping noise (scripts, styles, nav) and preserving semantic structure like headings, bold, italic, links, lists, code, and blockquotes.

Validates and decodes IBAN checksums (country + BBAN), US ABA routing numbers, SWIFT/BIC codes, and credit/debit card numbers (Luhn check + network detection), with auto-detection of input type.

Validates IBAN numbers using ISO 13616 mod-97 algorithm with per-country length rules, and validates SWIFT/BIC structure while extracting country and bank code details.

Validates IBAN numbers using ISO 13616 mod-97 algorithm with per-country length rules, and validates SWIFT/BIC codes with country and bank-code extraction.

Generates a valid RFC 5545 VCALENDAR (.ics) file from a list or CSV of events, supporting all-day and timed events, recurrence rules, locations, and display alarms.

Generates a valid RFC 5545 VCALENDAR (.ics) file from a list of events or a CSV, supporting all-day and timed events, RRULE recurrence, location, and display alarms.

Extracts and transcribes all text from an image URL, preserving the original layout where possible.

Calculates impermanent loss percentage and hold-vs-LP value comparison for a 50/50 liquidity pool given the price ratio change of the volatile asset, optionally netting fees earned.

Calculates impermanent loss percentage and hold-vs-LP value comparison for a 50/50 liquidity pool given the price ratio of the volatile asset, optionally netting fees earned.

Infers a JSON Schema (draft 2020-12) from one or more sample JSON documents, detecting types, nested structures, arrays, and required fields.

Classifies an IPv4 or IPv6 address returning version, public/private/loopback/link-local flags, integer and hex representations, reverse-DNS pointer, and optional CIDR membership test.

Classifies an IPv4 or IPv6 address, returning version, public/private/loopback/link-local flags, integer and hex representations, reverse-DNS pointer, and optional CIDR membership test.

Classifies an IPv4 or IPv6 address: reports version, scope (private/loopback/global), and reverse DNS pointer.

Performs CIDR math for IPv4/IPv6 addresses: computes network, broadcast, netmask, wildcard, prefix, usable host range and count, and optionally checks if an IP is contained in a subnet or splits a subnet.

Returns country, city, region, ISP/org, latitude, and longitude for a given IPv4 or IPv6 address using the ipwho.is data source, with no API key required.

Repairs malformed or truncated JSON (trailing commas, unquoted keys, cut-off LLM output) into valid, parseable JSON.

Fixes malformed or truncated JSON (trailing commas, unquoted keys, cut-off LLM output) into valid, parseable JSON.

Validates a JSON instance against a JSON Schema (draft 7 / 2020-12 subset) and returns a valid flag with per-field error codes and JSONPath locations.

Computes a structural diff between two JSON documents, returning added/removed/changed paths in JSONPath-style patch format plus an equality flag.

Computes a structural diff of two JSON documents, returning added, removed, and changed paths in JSONPath-style patch format plus an equality flag.

Converts a source string between JSON and YAML formats, supporting config files, Helm values, Kubernetes manifests, and CI workflow files.

Converts a source string between JSON and YAML formats, supporting config files, Helm values, Kubernetes manifests, and CI workflows.

Decodes a JWT token's header and payload without verifying the signature, and flags whether the token is expired.

Decodes a JWT token's header and payload without verifying the signature, and flags whether the token is expired.

Extracts top-N single tokens and two-word phrases by frequency from text, with stopword removal and normalized weights.

Calculates the liquidation price for a long or short leveraged perpetual futures position given entry price, leverage, and maintenance margin rate, and returns the distance to liquidation.

Generates a full amortization table from loan principal, APR, and term, including monthly payment, per-period principal/interest split, running balance, total interest, and payoff date.

Generates a full amortization schedule from loan principal, APR, and term, including monthly payment, per-period principal/interest breakdown, running balance, total interest, and payoff date.

Generates deterministic fake test data rows from a field-to-type schema and a seed value, returning reproducible fixtures in JSON, CSV, or NDJSON format.

Generates deterministic, reproducible fake test data rows (names, emails, phones, addresses, dates, ints, bools) from a field-type spec and seed, in JSON, CSV, or NDJSON format.

Computes MD5, SHA-1, SHA-256, SHA-512, SHA3-256, and CRC32 digests of a text string or hex bytes in a single API call, returning hex-encoded hashes and byte length.

Computes MD5, SHA1, SHA256, SHA512, SHA3-256, and CRC32 digests of text or hex bytes in a single API call, returning hex strings and byte length for each algorithm.

Converts a plain-English question or request into a SQL query, optionally using a provided schema for accurate table joins.

Computes net present value (NPV), internal rate of return (IRR), payback period, and profitability index for a cashflow array at a specified discount rate.

Computes net present value (NPV), internal rate of return (IRR), payback period, and profitability index for a cashflow array at a specified discount rate.

Converts a numeric value into its English word representation in cardinal, ordinal, or currency (dollars and cents) form for use in checks, invoices, and documents.

Converts a numeric value into its English word representation in cardinal, ordinal, or currency (dollars and cents) form for use in checks, invoices, and documents.

Fills AcroForm text field values in a base64-encoded PDF and returns the completed PDF as base64, reporting which fields were set.

Parses a phone number to E.164 format, extracts its country calling code and region, and validates its length against the E.164 standard.

Parses a phone number into E.164 format, extracts the country calling code and region, and validates the number's length against the E.164 standard.

Converts text to/from NATO phonetic alphabet, Morse code, binary, or Grade-1 Braille in either direction

Deterministically mask emails, phone numbers, credit-card-like numbers, IPv4 addresses, and US SSNs in text using regex, returning redacted text and per-type match counts.

Deterministically masks emails, phone numbers, credit card numbers, IPv4 addresses, and US SSNs in text, returning redacted text and per-type match counts.

Regex-based redaction of PII (emails, phone numbers, SSNs, credit card numbers, IP addresses) from text, returning sanitized text and per-type redaction counts.

Computes optimal bet or position sizes using full or fractional Kelly criterion from win probability, payoff ratio, and bankroll, plus fixed fractional sizing from stop distance and account risk percentage.

Calculates optimal bet/trade size using full or fractional Kelly Criterion from win probability and payoff ratio, or fixed fractional sizing from stop distance and account risk percentage.

Generates a QR code as a PNG base64 string from text, URL, WiFi credentials, or vCard data with configurable size and error-correction level.

Generates a QR code as a PNG base64 image from text, URL, WiFi credentials, or vCard data with configurable size and error-correction level.

Takes a regular expression and returns a plain-English, token-by-token explanation of what it matches.

Takes a regular expression and returns a plain-English, token-by-token explanation of what it matches.

Generates a regular expression from a plain-English description, along with a short explanation of how it works.

Generates a regular expression from a plain-English description, along with a short explanation of how the pattern works.

Tests a regular expression against input text and returns all matches, capture groups, named groups, and character span positions.

Calculates retirement corpus size, years-to-financial-independence, and safe withdrawal rate given current savings, contributions, expected return, inflation, and target annual spend.

Calculates retirement corpus, years-to-financial-independence, and safe withdrawal amounts based on savings, contributions, return rate, inflation, and target spend.

Fetches a remote RSS or Atom feed URL and returns its items as a clean, structured JSON list.

Add tax to a net amount or extract tax from a gross amount using a supplied rate or a built-in table of US state (with avg local) and worldwide VAT/GST rates.

Performs an AI-powered security audit of source code, identifying vulnerabilities with CVSS scores and detailed explanations

Parse, compare, range-test, and bump semantic versions (major/minor/patch) with support for caret, tilde, and comparison range operators.

Parses, compares, validates, and bumps semantic version strings, including range testing with operators like ^, ~, >=, and <.

Computes a 64-bit SimHash fingerprint for text content, or compares two texts returning Hamming distance and a 0–1 similarity score for near-duplicate detection.

Computes a 64-bit SimHash fingerprint for text content, or compares two texts returning Hamming distance and a 0–1 similarity score for near-duplicate detection.

Converts any input text into a clean, URL-safe slug — ASCII characters, lowercased, and hyphen-separated.

Validates a social media post against platform-specific limits for X/Twitter, LinkedIn, Instagram, or Bluesky, returning weighted character count, hashtag/mention/link caps, over-limit flag, and a truncation preview.

Validates a social media post against platform-specific limits for X/Twitter, LinkedIn, Instagram, or Bluesky, returning weighted character count, hashtag/mention/link caps, over-limit flag, and truncation preview.

Extracts specified fields from unstructured text and returns them as a structured JSON object matching the requested shape or field list.

Extracts specified fields from unstructured text and returns them as a structured JSON object matching a requested schema or field list.

Fetches a web page via SSRF-safe request and returns a concise AI-generated summary with key points using Claude.

Fetches a web page via SSRF-safe retrieval and returns a concise AI-generated summary and key points using Claude.

Converts tabular data between CSV, TSV, JSON (array of objects), and NDJSON/JSONL formats using RFC 4180 compliant parsing.

Analyzes text and returns word/sentence/syllable counts, reading time, and multiple readability grade-level scores (Flesch, Flesch-Kincaid, Gunning Fog, SMOG, ARI, Coleman-Liau) in a single call.

Analyzes a text passage to return word/sentence/syllable counts, reading time, and six standard readability grade-level scores in a single call.

Converts between Unix epoch timestamps (seconds or milliseconds) and ISO-8601 datetime strings, and reports the weekday and UTC offset.

Calculates market cap, fully-diluted valuation (FDV), circulating ratio, and implied dilution from token price, circulating supply, and max/total supply.

Rewrites a given text in a specified tone (formal, friendly, concise, persuasive, etc.) while preserving original meaning.

Calculates realized profit/loss, ROI percentage, and break-even price for a trading position given entry/exit prices, size, side, leverage, and fee rates.

Calculates realized PnL, ROI percentage, and break-even price for a trading position given entry/exit prices, size, side, leverage, and fee rates.

Applies NFC/NFD/NFKC/NFKD Unicode normalization to a string and returns per-codepoint metadata (name, category, script), flagging mixed-script and potential homoglyph attacks.

Apply NFC/NFD/NFKC/NFKD Unicode normalization to a string and return per-codepoint metadata (name, category, script) while flagging mixed-script and potential homoglyph strings.

Fetches a URL, strips boilerplate content, and returns word count, character count, and estimated reading time.

Parses a User-Agent string into structured fields: browser name/version, rendering engine, operating system, device class, and bot/AI-crawler flag (GPTBot, ClaudeBot, PerplexityBot).

Generate or batch-generate UUID v4/v5/v7, ULID, or NanoID identifiers, or parse and validate an existing ID to extract its embedded timestamp.

Generate UUID v4/v5/v7, ULID, or NanoID identifiers (single or batch), or parse/validate an existing ID and extract its embedded timestamp.

Computes the WCAG 2.1 contrast ratio between two colors and reports AA/AAA pass/fail status for normal and large text.

Computes the WCAG 2.1 contrast ratio between a foreground and background color and reports AA/AAA pass/fail for normal and large text.

Returns daily high/low temperatures, precipitation, and weather conditions for the next N days at any latitude/longitude coordinate using Open-Meteo data.

Bidirectionally converts between XML and JSON strings, with attributes prefixed by @, text nodes as #text, and repeated tags collapsed into arrays.

Classifies a given text into one of the caller-supplied labels, returning the predicted label and confidence score.

Parses CSV or TSV (RFC 4180) text into a JSON array of row objects or arrays.

Validates an email address for RFC-5322 syntax and flags it as disposable, role-account, or free-provider

Accepts a code snippet and returns a plain-English explanation of what the code does, powered by Claude AI, billed per request in USDC on Base L2.

Resizes an image (supplied as base64 or URL) to target width/height using contain, cover, or stretch fit modes.

Extract one or more specific values from a JSON blob using dot-notation or bracket-path expressions (e.g. items[2].name, meta.total).

Validates a JSON instance against a JSON Schema (draft 7 / 2020-12 subset) and returns a valid flag with per-field errors including codes and JSONPath locations.

Redacts PII from text using regex patterns, masking emails, phone numbers, SSNs, credit card numbers, and IP addresses, and returns the cleaned text with per-type match counts.

Classifies arbitrary text into one of caller-supplied labels and returns a confidence score for the assigned category.

Calculates the liquidation price and distance-to-liquidation for a long or short leveraged perpetual futures position given entry price, leverage, and maintenance margin rate.

Converts text to any of eight common casing formats including upper, lower, title, sentence, snake_case, camelCase, kebab-case, and CONSTANT_CASE.

Reviews submitted source code for bugs, security vulnerabilities, and quality issues using Claude AI, returning structured findings per request

Converts a monetary amount between two currencies using the latest ECB (European Central Bank) reference rate via the Frankfurter API, with no API key required.

Analyzes code snippets using Claude AI to diagnose bugs, explain errors, and suggest fixes, billed per request in USDC on Base L2.

Analyzes code to identify bugs, explain errors, and suggest fixes using Claude AI, paid per-request in USDC on Base L2

Re-encodes an image as JPEG or WEBP at a specified target quality level to reduce its file size.

Returns format, dimensions, mode, aspect ratio, transparency flag, and byte size for a given image.

Returns format, dimensions, color mode, aspect ratio, transparency flag, and byte size for a given image.

Extracts and transcribes all text from a given image URL, preserving the original layout where possible.

Fetches and parses an RSS or Atom feed URL into a clean, structured JSON list of feed items.

Parses a User-Agent string into structured fields: browser, version, rendering engine, OS, device class, and flags for known bots and AI crawlers (GPTBot, ClaudeBot, PerplexityBot).

Generates a conventional Git commit message from code diff or description input

Fetches a URL and returns its clean, readable text content stripped of HTML and boilerplate

Extracts structured entities (URLs, emails, and mentions) from freeform text, returning categorized lists in a single call.

Converts an image file between PNG, JPEG, WEBP, GIF, and BMP formats

Performs AI-powered security and quality review of source code, identifying issues like SQL injection and other vulnerabilities, billed per request in USDC on Base L2

Extracts structured information (titles, decisions, action items) from document text using Claude AI, paid per-request in USDC on Base L2

Summarizes content into concise bullet points using Claude AI, paid per-request with USDC on Base L2

Compresses an image to reduce file size while preserving visual quality, returning the compressed image bytes.

Generates automation scripts (e.g. Python, Bash) from a description or code input, powered by Claude Sonnet, billed per request in USDC on Base L2

Geolocates an IP address and returns country-level location data

Summarizes a support or chat session transcript using Claude AI, returning a concise text summary and token usage metadata.

Converts a Markdown string into rendered HTML, returning the full HTML markup as a string.

Calculates sales tax or VAT for a given net amount, returning the tax amount, gross total, and applicable rate percentage.

Infers a JSON Schema from a sample JSON blob, returning a structured schema definition that describes the shape and required fields of the input.

Converts a natural language description of a schedule into a valid cron expression string.

Returns current US/European AQI, PM2.5, PM10, and ozone levels for any latitude/longitude coordinate via Open-Meteo air quality data.

Generates a ready-to-run automation script from a code snippet or description, using Claude AI, paid per-request in USDC on Base L2

Encodes or decodes a string across base64, base64url, hex, and URL/percent encoding formats.

Applies a Gaussian blur at a specified radius to an image, suitable for redaction backdrops and privacy masking.

Applies a Gaussian blur at a specified radius to an image, suitable for redaction backdrops and privacy masking.

Validates a number against the Luhn checksum algorithm and identifies the payment card brand (Visa, Mastercard, Amex, etc.).

Validates a number string against the Luhn checksum algorithm and identifies the associated payment card brand (e.g. Visa, Mastercard, Amex).

Summarizes provided text or code content into concise bullet points using Claude AI, charged per-request in USDC on Base L2

Crops an image to a specified rectangular bounding box defined by left, top, right, and bottom pixel coordinates.

Crops an image to a specified rectangular bounding box defined by left, top, right, and bottom pixel coordinates.

Returns current price, 24-hour change, and market cap for one or more cryptocurrencies by CoinGecko coin ID.

Parses a CSV or TSV (RFC 4180) string into a JSON array of row objects or arrays.

Converts a monetary amount between two currencies using the latest ECB (European Central Bank) reference rate via the Frankfurter API, with no API key required.

Returns current temperature, wind speed, humidity, and weather conditions for any latitude/longitude coordinate using Open-Meteo (no API key required).

Computes the difference between two dates/times in days, hours, minutes, and business days.

Extracts structured entities (emails, URLs, IPs, phone numbers, hashtags, mentions, money amounts, dates) from raw text using regex-based pattern matching.

Explains any concept in simple, plain language that a beginner can understand (Explain Like I'm 5)

Fetches a given web page and extracts all email addresses and phone numbers found in its content.

Fetches a web page by URL and returns all absolute hyperlinks found on it, with optional filtering to external links only.

Fetches a web page by URL and returns all absolute hyperlinks found on it, with optional filtering to external links only.

Converts a place name into latitude, longitude, country, and population using Open-Meteo geocoding.

Corrects grammar, spelling, and punctuation in text while preserving the author's original voice and meaning.

Corrects grammar, spelling, and punctuation in text while preserving the author's original voice and meaning.

Search Hacker News stories and comments by query, sorted by relevance or date using the Algolia HN search index.

Searches Hacker News stories and comments by query, returning results sorted by relevance or date using the Algolia HN search index.

Converts an image from one format to another, supporting PNG, JPEG, WEBP, GIF, and BMP.

Classifies an IPv4 or IPv6 address: detects version, scope (private/loopback/global), and computes the reverse DNS pointer (PTR record format).

Converts a date into its ISO 8601 week-date components (year, week number, weekday), ordinal day-of-year, quarter, and days remaining in the year.

Converts a date into ISO 8601 week-date components (year, week number, weekday), plus ordinal day-of-year, quarter, and days remaining in the year.

Pretty-print, minify, or sort keys of a JSON string while reporting validity and size delta

Extracts one or more values from a JSON blob using dot/bracket path notation (e.g. items[2].name, meta.total)

Flattens a JSON array of objects into a CSV file with a header row derived from object keys.

Flattens a JSON array of objects into a CSV string with a header row.

Extracts and ranks key topics, entities, and tags from a block of text

Extracts key topics, named entities, and tags from text, returning them as a ranked list.

Extracts the top-N single tokens and two-word phrases by frequency from text, with stopword removal and normalized weights.

Estimates token count for a given text using heuristic (character- and word-based) methods and projects approximate input costs across LLM models for budget planning.

Estimates token count for a text string using heuristic (character- and word-based) methods, then projects per-model input costs for LLM budgeting.

Generates placeholder lorem ipsum text by specifying paragraphs, sentences, or words count.

Converts Markdown text to sanitized HTML without external libraries, supporting headings, bold/italic, links, inline code, fenced code blocks, blockquotes, and ordered/unordered lists.

Generates a Model Context Protocol (MCP) blueprint/architecture document for a given codebase or service description using AI

Returns a calendar month as a grid of week rows (Monday or Sunday start), along with the weekday of the 1st, total day count, and leap year status.

Returns a month as a structured grid of week rows (Monday or Sunday start), plus the weekday of the 1st, total day count, and leap year flag.

Scores a password by length, character classes, and estimated entropy (bits) to gauge its strength.

Scores a password by analyzing its length, character classes, and estimated entropy in bits to produce a strength rating.

Computes percent-of, percent-change, tip amount, and 'X is what percent of Y' calculations in a single endpoint.

Performs percentage computations including percent-of, percent-change, tip calculation, and X-is-what-percent-of-Y in a single endpoint.

Generates a solid-color placeholder image with optional centered text, requiring no input image.

Generates a solid-color placeholder image with optional centered text, requiring no input image.

Tests a regular expression pattern against input text and returns full match details including capture groups, named groups, and span positions.

Converts integers (1–3999) to Roman numeral strings and Roman numeral strings back to integers, with strict input validation.

Converts integers (1–3999) to Roman numerals and Roman numerals back to integers, with strict validation of both formats.

Rotate an image by a specified number of degrees and/or flip it horizontally or vertically.

Rotates an image by a specified number of degrees and/or flips it horizontally or vertically.

Rotates a base64-encoded image by any angle (with canvas auto-expansion) and/or mirrors it horizontally or vertically, returning the transformed image as base64 PNG.

Classifies text as positive, negative, or neutral and returns a numeric score, magnitude, and brief explanation.

Classifies text as positive, negative, or neutral and returns a sentiment score, magnitude, and brief reason.

Converts any input text into a clean, ASCII-only, lowercased, hyphenated URL slug.

Creates a centered square thumbnail of an image at a specified pixel size.

Computes a unified diff between two text strings, returning added/removed line counts and a similarity ratio.

Computes a unified diff between two text strings, returning added/removed line counts and a similarity ratio.

Analyzes a text string and returns character count, word count, sentence count, paragraph count, average word length, and estimated reading time.

Analyzes a text string and returns character, word, sentence, and paragraph counts, average word length, and estimated reading time.

Converts between Unix epoch timestamps (seconds or milliseconds) and ISO-8601 datetime strings, and reports the weekday and UTC offset.

Calculates market cap, fully-diluted valuation (FDV), circulating ratio, and implied dilution from token price, circulating supply, and max/total supply.

Rewrites input text in a specified tone (formal, friendly, concise, persuasive, etc.) while preserving meaning.

Translates text from one language to another while preserving the original tone and formatting.

Converts values between units of length, mass, volume, data size, time, speed, or temperature

Converts values between units across length, mass, volume, data-size, time, speed, and temperature.

Fetches a webpage and extracts its title, description, OpenGraph/Twitter card tags, canonical URL, and favicon.

Fetches a URL and extracts page title, description, OpenGraph/Twitter card data, canonical URL, and favicon.

Parses a URL string into its constituent components: scheme, host, port, path, query parameters, and fragment.

Fetches a webpage, strips boilerplate, and returns word count, character count, and estimated reading time.

Generate batches of v4 (random) or v5 (name-based) UUIDs with optional uppercase and no-hyphen formatting.

Returns daily high/low temperatures, precipitation, and weather conditions for the next N days at a given latitude/longitude using Open-Meteo data.

Fetches and extracts clean readable text content from a given URL using an AI web reader model

Retrieves the lead summary, thumbnail image, and canonical URL for any Wikipedia article by title.

Returns the lead summary, thumbnail image, and canonical URL for any given Wikipedia article title.

Bidirectionally converts between XML and JSON, mapping attributes with @ prefix, text content as #text, and repeated tags as arrays.

Resize an image to specified dimensions via a paid x402 API call

Converts structured data between formats (e.g. CSV to JSON, JSON to CSV) and returns the transformed result with a row count.

Extracts structured information (titles, decisions, action items) from document text using Claude AI, paid per-request with USDC on Base L2

Generates placeholder text (lorem ipsum) in configurable units of paragraphs, sentences, or words

Summarizes a support or interaction session transcript using Claude AI, returning a concise markdown summary and token usage.

Creates a centered square thumbnail of an image at a specified pixel size.

Parses a URL into its component parts: scheme, host, port, path, query parameters, and fragment.

Analyzes an image using Claude AI and returns a natural language description of its visual content

Converts text into phonetic notation or transcription (e.g. IPA, Morse code, or similar phonetic representations)

Translates text from one language to another and returns the translated string

Fetches the current USD price of a cryptocurrency (e.g. Bitcoin) by coin identifier

Resolves a DNS query for a given hostname and returns the DNS answer records.

Converts a color image to grayscale or sepia tone via a simple POST request.

Converts a color image to grayscale or sepia tone via a simple POST request, returning the transformed image.

Generates batches of v4 (random) or v5 (name-based) UUIDs with optional uppercase and/or hyphen-stripped formatting.

Generates an MCP (Model Context Protocol) blueprint architecture document from provided code or context using Claude AI, paid per-request in USDC on Base L2

Explains a given topic in simple, plain language (Explain Like I'm 5) and returns a concise explanation string.

Analyzes an image using Claude AI and returns a natural language description of its visual content, paying per request with USDC on Base L2.

Returns a curated, machine-readable directory of x402 services with health, uptime, and trust grades for each listed service.

Fetches a web page and extracts all email addresses and phone numbers found in its content.