# Services from worlddata402.worlddata402.workers.dev on Zero

> worlddata402.worlddata402.workers.dev serves 39 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/worlddata402.worlddata402.workers.dev
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/worlddata402.worlddata402.workers.dev/health.json

## Services

- [WorldData402 OpenAlex Research Search](https://www.zero.xyz/c/worlddata402-openalex-research-search-fa36e38f/llms.txt): $0.02/call via x402. Searches the OpenAlex academic research database for scholarly works, authors, institutions, and concepts via a query string
- [WorldData402 Timezone Lookup](https://www.zero.xyz/c/worlddata402-timezone-lookup-76878252/llms.txt): $0.01/call via x402. Returns timezone information for a specified geographic area and location name via a pay-per-call x402 API
- [WorldData402 Crypto Fear & Greed Index](https://www.zero.xyz/c/worlddata402-crypto-fear-greed-index-c9d99ae8/llms.txt): $0.01/call via x402. Returns the current and historical Crypto Fear & Greed Index values indicating overall market sentiment
- [WorldData402 Air Quality](https://www.zero.xyz/c/worlddata402-air-quality-35145655/llms.txt): $0.01/call via x402. Returns current air quality data for a geographic location specified by latitude and longitude coordinates
- [WorldData402 World Bank Indicator Lookup](https://www.zero.xyz/c/worlddata402-world-bank-indicator-lookup-d415fb8d/llms.txt): $0.02/call via x402. Fetches World Bank development indicator data for a given country and indicator code, with optional year range, via pay-per-call x402 micropayment.
- [WorldData402 Sun Position & Times](https://www.zero.xyz/c/worlddata402-sun-position-times-e524db6c/llms.txt): $0.01/call via x402. Returns sunrise, sunset, solar noon, and sun position data for a given latitude/longitude and optional date.
- [WorldData402 Earthquake Feed](https://www.zero.xyz/c/worlddata402-earthquake-feed-4c50c6af/llms.txt): $0.01/call via x402. Returns recent earthquake data filtered by time window and minimum magnitude
- [WorldData402 SEC Company Filing Lookup](https://www.zero.xyz/c/worlddata402-sec-company-filing-lookup-d7292c17/llms.txt): $0.05/call via x402. Retrieves SEC filing and company data for a US-listed company by stock ticker symbol, paid via x402 micropayment protocol.
- [WorldData402 FX Timeseries](https://www.zero.xyz/c/worlddata402-fx-timeseries-50c271a0/llms.txt): $0.02/call via x402. Returns historical foreign exchange rate time series data for a given currency pair (base and quote currencies).
- [WorldData402 Reverse Geocode](https://www.zero.xyz/c/worlddata402-reverse-geocode-e4aca437/llms.txt): $0.01/call via x402. Converts a latitude/longitude coordinate pair into human-readable location data (country, region, city, etc.)
- [WorldData402 arXiv Research Search](https://www.zero.xyz/c/worlddata402-arxiv-research-search-64df5d66/llms.txt): $0.02/call via x402. Searches arXiv preprint papers by query string and returns matching academic research results
- [WorldData402 News Search](https://www.zero.xyz/c/worlddata402-news-search-6ac1f065/llms.txt): $0.05/call via x402. Searches global news articles by keyword query and optional timespan, returning relevant news results for AI agents.
- [WorldData402 EU VAT Number Validation](https://www.zero.xyz/c/worlddata402-eu-vat-number-validation-be1ae654/llms.txt): $0.02/call via x402. Validates a European VAT registration number for a given EU country code, returning validity status and business details.
- [WorldData402 Geocoding](https://www.zero.xyz/c/worlddata402-geocoding-c8b654bf/llms.txt): $0.01/call via x402. Converts a free-text location query string into structured geographic coordinates and metadata
- [WorldData402 Hacker News Top Stories](https://www.zero.xyz/c/worlddata402-hacker-news-top-stories-8d992efd/llms.txt): $0.01/call via x402. Returns the current top stories from Hacker News, with an optional limit on the number of results returned.
- [WorldData402 Current Weather](https://www.zero.xyz/c/worlddata402-current-weather-3dec5101/llms.txt): $0.01/call via x402. Returns current weather conditions for any geographic coordinate (latitude/longitude) via pay-per-call x402 micropayment
- [WorldData402 DNS Lookup](https://www.zero.xyz/c/worlddata402-dns-lookup-65348180/llms.txt): $0.01/call via x402. Resolves DNS records for a given domain name, returning structured DNS data via a pay-per-call API.
- [WorldData402 Stock Quote](https://www.zero.xyz/c/worlddata402-stock-quote-35cdac92/llms.txt): $0.02/call via x402. Fetches a real-time stock quote for a given ticker symbol, paid per-call via x402 USDC micropayment.
- [WorldData402 Domain RDAP Lookup](https://www.zero.xyz/c/worlddata402-domain-rdap-lookup-8f667e88/llms.txt): $0.02/call via x402. Retrieves RDAP (Registration Data Access Protocol) registration data for a given domain name, including registrar, registrant, dates, and nameservers.
- [WorldData402 Public Holidays Lookup](https://www.zero.xyz/c/worlddata402-public-holidays-lookup-79d021ff/llms.txt): $0.01/call via x402. Returns the list of public holidays for a given country and year
- [WorldData402 Wikipedia Summary](https://www.zero.xyz/c/worlddata402-wikipedia-summary-0f64709c/llms.txt): $0.01/call via x402. Retrieves a concise Wikipedia summary for a given article title, paid per-call via x402 USDC micropayment on Base mainnet.
- [WorldData402 Weather Forecast](https://www.zero.xyz/c/worlddata402-weather-forecast-1af0d1ed/llms.txt): $0.02/call via x402. Returns a multi-day weather forecast for a given latitude/longitude coordinate pair
- [WorldData402 Crypto Market Data](https://www.zero.xyz/c/worlddata402-crypto-market-data-8657e603/llms.txt): $0.02/call via x402. Retrieves market data for a specific cryptocurrency by ID, paid per-call via x402 USDC micropayments
- [WorldData402 EU Tenders Search](https://www.zero.xyz/c/worlddata402-eu-tenders-search-f7a1fa1b/llms.txt): $0.05/call via x402. Search European Union public procurement tenders by keyword query
- [WorldData402 Wikipedia Summary Lookup](https://www.zero.xyz/c/worlddata402-wikipedia-summary-lookup-7d50bc9b/llms.txt): $0.01/call via x402. Fetches a concise Wikipedia article summary for a given title in a specified language, paid per-call via x402 (USDC on Base mainnet).
- [WorldData402 Web Archive](https://www.zero.xyz/c/worlddata402-web-archive-b2ec35c2/llms.txt): $0.01/call via x402. Retrieves archived/cached web page content for a given URL via a pay-per-call API
- [WorldData402 FX Exchange Rate Lookup](https://www.zero.xyz/c/worlddata402-fx-exchange-rate-lookup-cac9bfe1/llms.txt): $0.01/call via x402. Returns foreign exchange (FX) rates for a given base currency, paid per-call via x402 micropayment protocol on Base mainnet.
- [WorldData402 Egyptian Pound Exchange Rates](https://www.zero.xyz/c/worlddata402-egyptian-pound-exchange-rates-3ca784f1/llms.txt): $0.01/call via x402. Returns current Egyptian Pound (EGP) exchange rates against other currencies
- [WorldData402 Barcode Product Lookup](https://www.zero.xyz/c/worlddata402-barcode-product-lookup-26003f11/llms.txt): $0.02/call via x402. Looks up product information by EAN barcode, returning global market and reference data for that product.
- [WorldData402 FX Historical Rate Lookup](https://www.zero.xyz/c/worlddata402-fx-historical-rate-lookup-24bf7bf4/llms.txt): $0.01/call via x402. Returns historical foreign exchange rates for a given base currency on a specified date, paid via x402 micropayment.
- [WorldData402 Postal Code Lookup](https://www.zero.xyz/c/worlddata402-postal-code-lookup-9c7f1bb2/llms.txt): $0.01/call via x402. Looks up geographic and administrative data for a given postal code within a specified country
- [WorldData402 IP Geolocation Lookup](https://www.zero.xyz/c/worlddata402-ip-geolocation-lookup-6e07e9a0/llms.txt): $0.01/call via x402. Looks up geolocation and contextual data for a given IP address, paid per-call via x402 USDC micropayment.
- [WorldData402 NPM Package Lookup](https://www.zero.xyz/c/worlddata402-npm-package-lookup-8ec2660b/llms.txt): $0.01/call via x402. Fetches metadata and details for a specified NPM package via a pay-per-call x402 API
- [WorldData402 Crypto Market Data Lookup](https://www.zero.xyz/c/worlddata402-crypto-market-data-lookup-7799bbb1/llms.txt): $0.01/call via x402. Retrieves cryptocurrency market data for one or more coin IDs via a pay-per-call x402 micropayment API
- [WorldData402 Books Search](https://www.zero.xyz/c/worlddata402-books-search-fead7bf4/llms.txt): $0.01/call via x402. Search a global books reference database by keyword query, returning book metadata and information.
- [WorldData402 DOI Research Lookup](https://www.zero.xyz/c/worlddata402-doi-research-lookup-a8ca718f/llms.txt): $0.01/call via x402. Retrieves research paper metadata and information for a given DOI (Digital Object Identifier) prefix and suffix via pay-per-call x402 micropayment.
- [WorldData402 Dictionary Lookup](https://www.zero.xyz/c/worlddata402-dictionary-lookup-36be40ea/llms.txt): $0.01/call via x402. Returns dictionary definition and linguistic data for a given English word via pay-per-call x402 micropayment.
- [WorldData402 PyPI Package Lookup](https://www.zero.xyz/c/worlddata402-pypi-package-lookup-172e6d35/llms.txt): $0.01/call via x402. Retrieves metadata and reference data for a PyPI (Python Package Index) package by name via pay-per-call x402 micropayment.
- [WorldData402 Country Data](https://www.zero.xyz/c/worlddata402-country-data-ddf06bc3/llms.txt): $0.01/call via x402. Returns global market, government, and reference data for a specific country identified by its country code

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

- [Zero catalog index](https://www.zero.xyz/llms.txt)