# Services from nexus-api-virid.vercel.app on Zero

> nexus-api-virid.vercel.app serves 119 paid API services for AI agents, indexed by Zero. Each is callable per call with payment handled by Zero.

Canonical page: https://www.zero.xyz/host/nexus-api-virid.vercel.app
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/nexus-api-virid.vercel.app/health.json

## Services

- [NexusAPI Length Unit Converter](https://www.zero.xyz/c/nexusapi-length-unit-converter-21c39fa1/llms.txt): $0.026508/call via x402. Converts a length value from one unit of measurement to another (e.g. meters to feet, miles to kilometers)
- [NexusAPI JWT Decode](https://www.zero.xyz/c/nexusapi-jwt-decode-0f2ff07f/llms.txt): $0.11915/call via x402. Decodes a JWT (JSON Web Token) to extract its header, payload, and claims without verifying the signature
- [NexusAPI Cover Letter Generator](https://www.zero.xyz/c/nexusapi-cover-letter-generator-26bbb2bb/llms.txt): $0.102499/call via x402. Generates a personalized, professional cover letter based on a user-provided query describing their background, job target, or role details
- [NexusAPI HTML-to-Text Converter](https://www.zero.xyz/c/nexusapi-html-to-text-converter-6cd6f5eb/llms.txt): $0.046385/call via x402. Converts HTML markup into clean plain text by stripping tags and formatting
- [NexusAPI JWT Encode](https://www.zero.xyz/c/nexusapi-jwt-encode-1fbfefc8/llms.txt): $0.138574/call via x402. Encodes a payload into a signed JSON Web Token (JWT)
- [NexusAPI Base64 Decode](https://www.zero.xyz/c/nexusapi-base64-decode-116d03e5/llms.txt): $0.052257/call via x402. Decodes a Base64-encoded string back into its original plaintext or binary representation
- [NexusAPI Barcode Generator](https://www.zero.xyz/c/nexusapi-barcode-generator-6657bb26/llms.txt): $0.081891/call via x402. Generates barcode images from input data strings, supporting standard barcode formats for product labels, inventory, and logistics use cases.
- [NexusAPI Geo Distance Calculator](https://www.zero.xyz/c/nexusapi-geo-distance-calculator-2fe322ef/llms.txt): $0.077813/call via x402. Calculates the geographic distance between two locations using coordinates or place names
- [NexusAPI YouTube Script Generator](https://www.zero.xyz/c/nexusapi-youtube-script-generator-7b92967e/llms.txt): $0.037765/call via x402. Generates a YouTube video script based on a given topic or search query
- [NexusAPI Forex Currency Converter](https://www.zero.xyz/c/nexusapi-forex-currency-converter-2d195feb/llms.txt): $0.120071/call via x402. Converts a monetary amount from one currency to another using live foreign exchange rates
- [NexusAPI Base64 Encode](https://www.zero.xyz/c/nexusapi-base64-encode-b3981c90/llms.txt): $0.071681/call via x402. Encodes a given string or data into Base64 format
- [NexusAPI Regex Generator](https://www.zero.xyz/c/nexusapi-regex-generator-1a8c4af8/llms.txt): $0.039054/call via x402. Generates regular expressions from a natural language description or pattern specification
- [NexusAPI Text Readability Analyzer](https://www.zero.xyz/c/nexusapi-text-readability-analyzer-cfbb2313/llms.txt): $0.067179/call via x402. Analyzes a piece of text and returns readability metrics and scores to assess how easy it is to read and understand.
- [NexusAPI QR Code Generator](https://www.zero.xyz/c/nexusapi-qr-code-generator-b3d029f6/llms.txt): $0.140308/call via x402. Generates a QR code image from a given text, URL, or data string
- [NexusAPI Body Fat Calculator](https://www.zero.xyz/c/nexusapi-body-fat-calculator-3d9b9e03/llms.txt): $0.132459/call via x402. Estimates body fat percentage based on user-provided physical measurements or query input
- [NexusAPI Weight Converter](https://www.zero.xyz/c/nexusapi-weight-converter-0274f5c1/llms.txt): $0.117411/call via x402. Converts a weight value between different units of measurement (e.g. kilograms, pounds, ounces, grams)
- [NexusAPI Regex Test](https://www.zero.xyz/c/nexusapi-regex-test-8add5112/llms.txt): $0.133649/call via x402. Tests a string against a regular expression pattern to determine if it matches
- [NexusAPI Instagram Caption Generator](https://www.zero.xyz/c/nexusapi-instagram-caption-generator-e197e57b/llms.txt): $0.123132/call via x402. Generates AI-written captions for Instagram posts based on a text query or topic input
- [NexusAPI Speed Unit Converter](https://www.zero.xyz/c/nexusapi-speed-unit-converter-d871894a/llms.txt): $0.044791/call via x402. Converts speed values between different units of measurement (e.g. mph to km/h, m/s to knots)
- [NexusAPI Time Conversion](https://www.zero.xyz/c/nexusapi-time-conversion-bc4ad919/llms.txt): $0.128098/call via x402. Converts time values between different time zones or formats via a pay-per-call API
- [NexusAPI Energy Unit Converter](https://www.zero.xyz/c/nexusapi-energy-unit-converter-0f9c88d0/llms.txt): $0.015436/call via x402. Converts energy values between different units (e.g. joules, calories, kilowatt-hours, BTUs, electronvolts)
- [NexusAPI Named Entity Recognition (NER)](https://www.zero.xyz/c/nexusapi-named-entity-recognition-ner-248e6004/llms.txt): $0.110144/call via x402. Performs Named Entity Recognition (NER) on a text query, identifying and classifying named entities such as people, organizations, locations, and dates.
- [NexusAPI Crypto Address Token Lookup](https://www.zero.xyz/c/nexusapi-crypto-address-token-lookup-fe8759e7/llms.txt): $0.068504/call via x402. Retrieves the list of tokens held by a given cryptocurrency wallet address
- [NexusAPI Geo Isoline](https://www.zero.xyz/c/nexusapi-geo-isoline-87ad1f20/llms.txt): $0.122395/call via x402. Generates geographic isoline (isochrone/isodistance) contours around a point based on travel time or distance
- [NexusAPI Cron Expression Parser](https://www.zero.xyz/c/nexusapi-cron-expression-parser-d514a707/llms.txt): $0.107622/call via x402. Parses a cron expression string and returns human-readable schedule details, next run times, and validation information
- [NexusAPI Text-to-Speech (TTS)](https://www.zero.xyz/c/nexusapi-text-to-speech-tts-fd23d6af/llms.txt): $0.030472/call via x402. Converts text input into synthesized audio speech, returning audio content generated from the provided text query.
- [NexusAPI URL Expander](https://www.zero.xyz/c/nexusapi-url-expander-27d40443/llms.txt): $0.044501/call via x402. Expands a shortened or obfuscated URL to reveal its full, original destination URL
- [NexusAPI PDF Extract](https://www.zero.xyz/c/nexusapi-pdf-extract-b15b8708/llms.txt): $0.098461/call via x402. Extracts text and structured content from PDF documents via a pay-per-call endpoint
- [NexusAPI Geo Address Validator](https://www.zero.xyz/c/nexusapi-geo-address-validator-a328d3a8/llms.txt): $0.029991/call via x402. Validates a geographic address string, checking whether it is a real, properly formatted, and deliverable address
- [NexusAPI AI Code Explainer](https://www.zero.xyz/c/nexusapi-ai-code-explainer-9617d24f/llms.txt): $0.084731/call via x402. Explains code snippets or programming concepts in plain language using AI
- [NexusAPI Crypto Address Balance Lookup](https://www.zero.xyz/c/nexusapi-crypto-address-balance-lookup-8abb8996/llms.txt): $0.149836/call via x402. Returns the cryptocurrency balance for a given blockchain address
- [NexusAPI Audio Transcription](https://www.zero.xyz/c/nexusapi-audio-transcription-cf484921/llms.txt): $0.026977/call via x402. Transcribes audio content into text using AI-powered speech recognition
- [NexusAPI AI Slogan Generator](https://www.zero.xyz/c/nexusapi-ai-slogan-generator-1171db73/llms.txt): $0.057837/call via x402. Generates a catchy marketing slogan for a given topic, brand, or product using AI
- [NexusAPI Mortgage Calculator](https://www.zero.xyz/c/nexusapi-mortgage-calculator-f7fd6ec5/llms.txt): $0.012629/call via x402. Calculates mortgage payments and related financial metrics given loan parameters
- [NexusAPI Podcast Outline Generator](https://www.zero.xyz/c/nexusapi-podcast-outline-generator-4f92c935/llms.txt): $0.107295/call via x402. Generates a structured podcast episode outline from a given topic or search query
- [NexusAPI Area Unit Converter](https://www.zero.xyz/c/nexusapi-area-unit-converter-c1d9ee8a/llms.txt): $0.13047/call via x402. Converts area measurements between different units (e.g. square meters, acres, hectares, square feet)
- [NexusAPI Text Diff](https://www.zero.xyz/c/nexusapi-text-diff-73022cc3/llms.txt): $0.138396/call via x402. Computes and returns the difference (diff) between two text strings or documents
- [NexusAPI Color Convert](https://www.zero.xyz/c/nexusapi-color-convert-e0dc8534/llms.txt): $0.120627/call via x402. Converts color values between different color formats and spaces (e.g. HEX, RGB, HSL, HSV, CMYK)
- [NexusAPI Geo Directions](https://www.zero.xyz/c/nexusapi-geo-directions-379940c2/llms.txt): $0.063748/call via x402. Returns turn-by-turn navigation directions between two locations via a geospatial routing query
- [NexusAPI Pressure Unit Converter](https://www.zero.xyz/c/nexusapi-pressure-unit-converter-dfc4ec0b/llms.txt): $0.119732/call via x402. Converts pressure values between different units of measurement (e.g. Pascal, bar, PSI, atm, mmHg)
- [NexusAPI SEO Keyword Research](https://www.zero.xyz/c/nexusapi-seo-keyword-research-21b92732/llms.txt): $0.015229/call via x402. Generates SEO keyword suggestions and related search terms for a given query or topic
- [NexusAPI Volume Conversion](https://www.zero.xyz/c/nexusapi-volume-conversion-8b1bb804/llms.txt): $0.088247/call via x402. Converts a volume measurement from one unit to another (e.g. liters to gallons, cubic meters to fluid ounces)
- [NexusAPI BMI Calculator](https://www.zero.xyz/c/nexusapi-bmi-calculator-d3c5472e/llms.txt): $0.0187/call via x402. Calculates Body Mass Index (BMI) given weight and height inputs, returning BMI value and category
- [NexusAPI Image Describe](https://www.zero.xyz/c/nexusapi-image-describe-f1b3814c/llms.txt): $0.14464/call via x402. Analyzes and describes the content of an image using AI vision, returning a natural language description
- [NexusAPI AI Hashtag Generator](https://www.zero.xyz/c/nexusapi-ai-hashtag-generator-d443ce60/llms.txt): $0.057224/call via x402. Generates relevant hashtags for a given topic or query using AI, optimized for social media reach
- [NexusAPI AI Image Variations](https://www.zero.xyz/c/nexusapi-ai-image-variations-f7f20a23/llms.txt): $0.090038/call via x402. Generates variations of an input image using AI, returning new images derived from the original
- [NexusAPI Grammar Checker](https://www.zero.xyz/c/nexusapi-grammar-checker-4db38df3/llms.txt): $0.033122/call via x402. Checks and corrects grammar in a provided text string, returning suggestions or corrected output
- [NexusAPI Crypto Address Transactions Lookup](https://www.zero.xyz/c/nexusapi-crypto-address-transactions-lookup-f1c77cc9/llms.txt): $0.047775/call via x402. Retrieves transaction history for a given cryptocurrency wallet address
- [NexusAPI AI Email Reply Generator](https://www.zero.xyz/c/nexusapi-ai-email-reply-generator-02b15f82/llms.txt): $0.029473/call via x402. Generates AI-drafted reply text for a given email, producing a contextually appropriate response message.
- [NexusAPI AI Poem Generator](https://www.zero.xyz/c/nexusapi-ai-poem-generator-722044b9/llms.txt): $0.047399/call via x402. Generates an original poem based on a text query or topic provided by the user
- [NexusAPI AI SEO Meta Generator](https://www.zero.xyz/c/nexusapi-ai-seo-meta-generator-2fe2d013/llms.txt): $0.098554/call via x402. Generates SEO meta tags and metadata for web pages or content based on a query or topic input
- [NexusAPI QR Code Decoder](https://www.zero.xyz/c/nexusapi-qr-code-decoder-8590e409/llms.txt): $0.144948/call via x402. Decodes a QR code image or URL and extracts the embedded data/text content
- [NexusAPI URL Shortener](https://www.zero.xyz/c/nexusapi-url-shortener-2c9689cc/llms.txt): $0.048953/call via x402. Shortens a long URL into a compact, shareable short link
- [NexusAPI Fraction Math Solver](https://www.zero.xyz/c/nexusapi-fraction-math-solver-028a12d9/llms.txt): $0.014807/call via x402. Performs fraction arithmetic and mathematical operations on fractional expressions via natural language query
- [NexusAPI Crypto Contract Read](https://www.zero.xyz/c/nexusapi-crypto-contract-read-648d0181/llms.txt): $0.039079/call via x402. Reads data from a smart contract on a blockchain network by querying its state or methods
- [NexusAPI Loan Calculator](https://www.zero.xyz/c/nexusapi-loan-calculator-3247bd52/llms.txt): $0.094361/call via x402. Calculates loan repayment schedules, monthly payments, and interest costs given loan parameters
- [NexusAPI AI Paraphrase](https://www.zero.xyz/c/nexusapi-ai-paraphrase-e45392bd/llms.txt): $0.141451/call via x402. Paraphrases or rewrites a given text input into alternative phrasing while preserving meaning
- [NexusAPI Hash Generate](https://www.zero.xyz/c/nexusapi-hash-generate-b0a161e7/llms.txt): $0.116137/call via x402. Generates a cryptographic hash from an input string or query
- [NexusAPI AI Headlines](https://www.zero.xyz/c/nexusapi-ai-headlines-382c88e7/llms.txt): $0.107012/call via x402. Fetches AI-curated news headlines based on a search query, returning relevant current news stories
- [NexusAPI Geo ETA](https://www.zero.xyz/c/nexusapi-geo-eta-a85f0e14/llms.txt): $0.018209/call via x402. Estimates travel time (ETA) between geographic locations based on a query input
- [NexusAPI AI Joke Generator](https://www.zero.xyz/c/nexusapi-ai-joke-generator-acd341e2/llms.txt): $0.148833/call via x402. Generates a joke on demand, optionally themed around a query topic, via a pay-per-call AI endpoint
- [NexusAPI Compound Interest Calculator](https://www.zero.xyz/c/nexusapi-compound-interest-calculator-95539e78/llms.txt): $0.125661/call via x402. Calculates compound interest and investment growth based on principal, rate, time, and compounding frequency
- [NexusAPI Math Solver](https://www.zero.xyz/c/nexusapi-math-solver-e8ce60e8/llms.txt): $0.065029/call via x402. Solves mathematical problems and queries submitted as natural language or symbolic expressions
- [NexusAPI AI Email Generator](https://www.zero.xyz/c/nexusapi-ai-email-generator-ca28a53b/llms.txt): $0.102486/call via x402. Generates AI-written email content based on a text prompt or query
- [NexusAPI Hash Verify](https://www.zero.xyz/c/nexusapi-hash-verify-e6fc0861/llms.txt): $0.03155/call via x402. Verifies whether a given hash value matches the expected hash of a provided input string or data
- [NexusAPI Crypto Transaction Trace](https://www.zero.xyz/c/nexusapi-crypto-transaction-trace-9a53ea28/llms.txt): $0.088035/call via x402. Traces and analyzes a blockchain transaction by hash or query, returning detailed execution and call trace data
- [NexusAPI Geo Address Formatter](https://www.zero.xyz/c/nexusapi-geo-address-formatter-ed7568f6/llms.txt): $0.041297/call via x402. Formats and standardizes a raw address string or query into a properly structured, normalized address format.
- [NexusAPI AI Caption Generator](https://www.zero.xyz/c/nexusapi-ai-caption-generator-5328d403/llms.txt): $0.04612/call via x402. Generates AI-written captions for images, posts, or content based on a text query or description
- [NexusAPI Word Count](https://www.zero.xyz/c/nexusapi-word-count-21f67a80/llms.txt): $0.082554/call via x402. Counts the number of words in a given text string
- [NexusAPI Temperature Converter](https://www.zero.xyz/c/nexusapi-temperature-converter-fa3d8338/llms.txt): $0.07221/call via x402. Converts a temperature value between units (Celsius, Fahrenheit, Kelvin) via a pay-per-call API using USDC on Base
- [NexusAPI AI URL Shortener](https://www.zero.xyz/c/nexusapi-ai-

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