# Services from x402-agent.kariguetoazul.workers.dev on Zero

> x402-agent.kariguetoazul.workers.dev serves 1030 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/x402-agent.kariguetoazul.workers.dev
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/x402-agent.kariguetoazul.workers.dev/health.json

## Services

- [SignalDesk AI Public Holidays Lookup](https://www.zero.xyz/c/signaldesk-ai-public-holidays-lookup-2c0c40f7/llms.txt): $0.002/call via x402. Returns a list of public and optional holidays for a given country and year, sourced from the Nager.Date public holiday API.
- [SignalDesk AI – CISA KEV Lookup](https://www.zero.xyz/c/signaldesk-ai-cisa-kev-lookup-958f0b7e/llms.txt): $0.003/call via x402. Checks whether a given CVE identifier is listed in CISA's Known Exploited Vulnerabilities catalog and returns detailed vulnerability metadata
- [SignalDesk AI – Crossref DOI Lookup](https://www.zero.xyz/c/signaldesk-ai-crossref-doi-lookup-bf3544e0/llms.txt): $0.003/call via x402. Fetches structured bibliographic metadata for a scholarly article given its DOI, sourced from the Crossref API
- [SignalDesk AI US Weather Alerts](https://www.zero.xyz/c/signaldesk-ai-us-weather-alerts-d6080fd0/llms.txt): $0.003/call via x402. Fetches active NWS weather alerts for a given US state, returning event type, severity, onset/expiry, and affected areas.
- [SignalDesk AI FX History](https://www.zero.xyz/c/signaldesk-ai-fx-history-34a519d1/llms.txt): $0.003/call via x402. Retrieves historical foreign exchange rates between two currencies for a specified date range, sourced from the European Central Bank via Frankfurter.
- [SignalDesk AI Crossref Academic Search](https://www.zero.xyz/c/signaldesk-ai-crossref-academic-search-87e3bf94/llms.txt): $0.003/call via x402. Searches the Crossref scholarly database for academic publications matching a text query, returning DOIs, titles, authors, citations, and publisher metadata.
- [SignalDesk AI OSV Batch Vulnerability Lookup](https://www.zero.xyz/c/signaldesk-ai-osv-batch-vulnerability-lookup-9dd0be8c/llms.txt): $0.006/call via x402. Batch-queries the OSV (Open Source Vulnerabilities) database to find known CVEs and security advisories for up to 10 package/version/ecosystem combinations in a single call.
- [SignalDesk AI – OpenAlex Academic Search](https://www.zero.xyz/c/signaldesk-ai-openalex-academic-search-f9e252d2/llms.txt): $0.003/call via x402. Searches the OpenAlex open scholarly database for academic works matching a query, returning titles, authors, DOIs, citation counts, and open-access links.
- [SignalDesk AI – OpenAlex Work Lookup](https://www.zero.xyz/c/signaldesk-ai-openalex-work-lookup-f343ca2d/llms.txt): $0.003/call via x402. Fetches structured metadata for a single academic work from OpenAlex by its W-identifier, including title, authors, DOI, citations, and open-access status.
- [SignalDesk AI NPM Dependencies Lookup](https://www.zero.xyz/c/signaldesk-ai-npm-dependencies-lookup-fc41fe17/llms.txt): $0.002/call via x402. Fetches the dependency list (dependencies, peer dependencies, optional dependencies) for a given npm package and version from the npm public registry.
- [SignalDesk AI – CISA KEV Search](https://www.zero.xyz/c/signaldesk-ai-cisa-kev-search-146138c7/llms.txt): $0.003/call via x402. Searches the CISA Known Exploited Vulnerabilities (KEV) catalog by keyword, returning matching CVE records with vendor, product, due date, and remediation actions
- [SignalDesk AI Earthquake Data](https://www.zero.xyz/c/signaldesk-ai-earthquake-data-a529dbe0/llms.txt): $0.003/call via x402. Fetches recent USGS earthquake data filtered by minimum magnitude and result count
- [SignalDesk AI SPF Record Lookup](https://www.zero.xyz/c/signaldesk-ai-spf-record-lookup-697569bb/llms.txt): $0.002/call via x402. Fetches and parses SPF (Sender Policy Framework) DNS TXT records for a given domain, returning the raw records, parsed mechanisms, and validity flags
- [SignalDesk AI – PyPI Release Lookup](https://www.zero.xyz/c/signaldesk-ai-pypi-release-lookup-4566bba8/llms.txt): $0.002/call via x402. Fetches metadata and file download links for a specific PyPI package version, including file hashes, sizes, upload times, and dependency information.
- [SignalDesk AI GitHub License Lookup](https://www.zero.xyz/c/signaldesk-ai-github-license-lookup-437dddca/llms.txt): $0.002/call via x402. Fetches the open-source license information for any public GitHub repository, returning the license key, SPDX identifier, and raw license file URL.
- [SignalDesk AI Loan Amortization Calculator](https://www.zero.xyz/c/signaldesk-ai-loan-amortization-calculator-86dde00b/llms.txt): $0.001/call via x402. Computes a full month-by-month loan amortization schedule from a principal, annual interest rate, and term in months
- [SignalDesk AI ROR Organization Search](https://www.zero.xyz/c/signaldesk-ai-ror-organization-search-99bd6c79/llms.txt): $0.003/call via x402. Searches the Research Organization Registry (ROR) for academic and research institutions by name or keyword, returning structured organization metadata.
- [SignalDesk AI – NPM Package Download Statistics](https://www.zero.xyz/c/signaldesk-ai-npm-package-download-statistics-52a3eb73/llms.txt): $0.002/call via x402. Returns the download count for a specified npm package over a given time period (last week or last month) via the npm download statistics API.
- [SignalDesk AI ISS Position](https://www.zero.xyz/c/signaldesk-ai-iss-position-bac3884b/llms.txt): $0.002/call via x402. Returns the current real-time position, altitude, and velocity of the International Space Station (ISS)
- [SignalDesk AI Mail Routing Lookup](https://www.zero.xyz/c/signaldesk-ai-mail-routing-lookup-46266c11/llms.txt): $0.003/call via x402. Looks up and validates email routing configuration (MX, SPF, DMARC) for a given domain using Cloudflare DNS over HTTPS
- [SignalDesk AI GitHub Repository Lookup](https://www.zero.xyz/c/signaldesk-ai-github-repository-lookup-b9b7f953/llms.txt): $0.002/call via x402. Fetches public metadata for a GitHub repository, including stars, forks, language, license, open issues, and description.
- [SignalDesk AI RubyGems Package Lookup](https://www.zero.xyz/c/signaldesk-ai-rubygems-package-lookup-b522f6a8/llms.txt): $0.002/call via x402. Fetches metadata for a RubyGems package by name, including version, license, download counts, and runtime/development dependencies
- [SignalDesk AI GitHub Release Lookup](https://www.zero.xyz/c/signaldesk-ai-github-release-lookup-eee95108/llms.txt): $0.002/call via x402. Fetches the latest release metadata for any public GitHub repository, including version tag, title, publication date, and asset list.
- [SignalDesk AI DNSSEC Lookup](https://www.zero.xyz/c/signaldesk-ai-dnssec-lookup-a5aed3ff/llms.txt): $0.002/call via x402. Performs a DNSSEC-validated DNS lookup for a given domain, returning DNS records and DNSSEC validation status via Cloudflare DNS over HTTPS
- [SignalDesk AI – NuGet Package Version Lookup](https://www.zero.xyz/c/signaldesk-ai-nuget-package-version-lookup-f44a92a1/llms.txt): $0.002/call via x402. Fetches the list of published versions for a given NuGet package, returning the latest versions and total version count from the NuGet public registry.
- [SignalDesk AI GitHub Security Advisory Lookup](https://www.zero.xyz/c/signaldesk-ai-github-security-advisory-lookup-f9312e6f/llms.txt): $0.003/call via x402. Fetches detailed GitHub Security Advisory (GHSA) data including CVSS scores, CVE IDs, severity, and affected package versions for a given GHSA identifier
- [SignalDesk AI – Europe PMC Search](https://www.zero.xyz/c/signaldesk-ai-europe-pmc-search-12bf6e7c/llms.txt): $0.003/call via x402. Search the Europe PMC biomedical literature database and return structured article metadata including DOI, journal, authors, and open-access status.
- [SignalDesk AI GitHub Issues Fetcher](https://www.zero.xyz/c/signaldesk-ai-github-issues-fetcher-5e3e1942/llms.txt): $0.002/call via x402. Fetches the latest open issues from any public GitHub repository, returning titles, labels, numbers, and timestamps
- [SignalDesk AI – World Bank Indicator Lookup](https://www.zero.xyz/c/signaldesk-ai-world-bank-indicator-lookup-52aaca41/llms.txt): $0.003/call via x402. Fetches historical World Bank economic indicator observations for a given country and indicator code, returning time-series data with source metadata.
- [SignalDesk AI DMARC Lookup](https://www.zero.xyz/c/signaldesk-ai-dmarc-lookup-b02ed5c6/llms.txt): $0.002/call via x402. Fetches and parses DMARC DNS records for a given domain, returning raw record strings and structured policy fields.
- [DMS to Decimal Degrees Converter](https://www.zero.xyz/c/dms-to-decimal-degrees-converter-c69da914/llms.txt): $0.001/call via x402. Converts geographic coordinates from degrees-minutes-seconds (DMS) format to decimal degrees
- [SignalDesk AI World Bank Country Data](https://www.zero.xyz/c/signaldesk-ai-world-bank-country-data-27df583c/llms.txt): $0.002/call via x402. Fetches structured country metadata (region, capital, coordinates, income level) from the World Bank API for a given ISO country code.
- [SignalDesk AI Weather Forecast](https://www.zero.xyz/c/signaldesk-ai-weather-forecast-fe8e28bf/llms.txt): $0.002/call via x402. Returns hourly weather forecast data (temperature, wind, pressure, humidity, weather symbol) for a given latitude/longitude coordinate, sourced from MET Norway.
- [SignalDesk AI – ASN Lookup](https://www.zero.xyz/c/signaldesk-ai-asn-lookup-c477f9f2/llms.txt): $0.002/call via x402. Looks up detailed information about an Autonomous System Number (ASN), including the holder name, block assignment, and announcement status, sourced from RIPEstat.
- [SignalDesk AI – Crates.io Package Lookup](https://www.zero.xyz/c/signaldesk-ai-crates-io-package-lookup-13d8cb8d/llms.txt): $0.002/call via x402. Fetches metadata for a Rust crate from crates.io, including latest version, download counts, repository URL, and description.
- [SignalDesk AI GitHub Repository Search](https://www.zero.xyz/c/signaldesk-ai-github-repository-search-c036d845/llms.txt): $0.003/call via x402. Searches GitHub public repositories by keyword and returns ranked results with metadata including stars, language, and description
- [Mercator Forward Projection](https://www.zero.xyz/c/mercator-forward-projection-b7e8c772/llms.txt): $0.001/call via x402. Converts geographic coordinates (latitude/longitude) to Web Mercator projected coordinates (x/y) in meters
- [Kilogram per Cubic Meter to Pound per Cubic Foot Density Converter](https://www.zero.xyz/c/kilogram-per-cubic-meter-to-pound-per-cubic-foot-density-converter-5b3667bc/llms.txt): $0.001/call via x402. Converts a density value from kilograms per cubic meter (kg/m³) to pounds per cubic foot (lb/ft³) using IEEE-754 double precision arithmetic.
- [SignalDesk AI – Jaccard Similarity](https://www.zero.xyz/c/signaldesk-ai-jaccard-similarity-cbbe779a/llms.txt): $0.001/call via x402. Computes the Jaccard similarity coefficient between two text strings by comparing their token sets
- [SignalDesk AI – Security Headers Checker](https://www.zero.xyz/c/signaldesk-ai-security-headers-checker-d90c1918/llms.txt): $0.004/call via x402. Fetches the HTTP response headers of a given public HTTPS URL and identifies which security headers are present or missing
- [SignalDesk AI Fahrenheit to Celsius Converter](https://www.zero.xyz/c/signaldesk-ai-fahrenheit-to-celsius-converter-04e67fc5/llms.txt): $0.001/call via x402. Converts a temperature value from degrees Fahrenheit to degrees Celsius with IEEE-754 double precision.
- [SignalDesk AI – Kilometers per Hour to Knots Converter](https://www.zero.xyz/c/signaldesk-ai-kilometers-per-hour-to-knots-converter-7e8e1b57/llms.txt): $0.001/call via x402. Converts a speed value from kilometers per hour (km/h) to knots using IEEE-754 double precision arithmetic.
- [SignalDesk AI Bar to PSI Pressure Converter](https://www.zero.xyz/c/signaldesk-ai-bar-to-psi-pressure-converter-a8315644/llms.txt): $0.001/call via x402. Converts a pressure value from bar to PSI (pounds per square inch) with IEEE-754 double precision
- [SignalDesk AI Levenshtein Distance](https://www.zero.xyz/c/signaldesk-ai-levenshtein-distance-790cf834/llms.txt): $0.001/call via x402. Computes the Levenshtein edit distance between two strings, returning the minimum number of single-character edits needed to transform one into the other.
- [SignalDesk AI Min-Max Normalize](https://www.zero.xyz/c/signaldesk-ai-min-max-normalize-674de648/llms.txt): $0.001/call via x402. Normalizes an array of up to 1000 numbers to the [0, 1] range using min-max scaling, returning the scaled values along with the observed min and max.
- [SignalDesk AI Geometry Bounding Box](https://www.zero.xyz/c/signaldesk-ai-geometry-bounding-box-4cd39d5b/llms.txt): $0.001/call via x402. Computes the minimum bounding box (north/south/east/west) that encloses a given set of geographic coordinates
- [Kelvin to Rankine Temperature Converter](https://www.zero.xyz/c/kelvin-to-rankine-temperature-converter-850d34e9/llms.txt): $0.001/call via x402. Converts a temperature value from Kelvin to Rankine using IEEE-754 double precision arithmetic
- [SignalDesk AI OSV Record Lookup](https://www.zero.xyz/c/signaldesk-ai-osv-record-lookup-2b7ee1b2/llms.txt): $0.003/call via x402. Fetches a structured OSV vulnerability record by ID, returning full advisory details including affected packages, severity, and references.
- [Cubic Foot to Liter Volume Converter](https://www.zero.xyz/c/cubic-foot-to-liter-volume-converter-c7b05b60/llms.txt): $0.001/call via x402. Converts a numeric volume value from cubic feet to liters using IEEE-754 double precision arithmetic
- [SignalDesk AI Inflation Adjuster](https://www.zero.xyz/c/signaldesk-ai-inflation-adjuster-188b7e53/llms.txt): $0.001/call via x402. Adjusts a monetary amount for inflation over a specified number of years given an annual inflation percentage rate
- [SignalDesk AI CAGR Calculator](https://www.zero.xyz/c/signaldesk-ai-cagr-calculator-7805c1fd/llms.txt): $0.001/call via x402. Computes the Compound Annual Growth Rate (CAGR) given an initial value, final value, and number of years
- [BTU per Hour to Watt Converter](https://www.zero.xyz/c/btu-per-hour-to-watt-converter-f892c948/llms.txt): $0.001/call via x402. Converts a power value from BTU per hour (international-table) to watts using IEEE-754 double precision arithmetic.
- [SignalDesk AI OSV Vulnerability Lookup](https://www.zero.xyz/c/signaldesk-ai-osv-vulnerability-lookup-15db4669/llms.txt): $0.004/call via x402. Checks whether a given npm or PyPI package (and optional version) has known vulnerabilities using the OSV database
- [SignalDesk AI – Europe PMC Article Lookup](https://www.zero.xyz/c/signaldesk-ai-europe-pmc-article-lookup-f2e52fb9/llms.txt): $0.003/call via x402. Fetches bibliographic metadata for a scientific article from Europe PMC by record ID and source database
- [SignalDesk AI CVE Lookup](https://www.zero.xyz/c/signaldesk-ai-cve-lookup-bfe83d93/llms.txt): $0.003/call via x402. Fetches CVE vulnerabili

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