# Services from api-production-17e1.up.railway.app on Zero

> api-production-17e1.up.railway.app serves 15 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/api-production-17e1.up.railway.app
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/api-production-17e1.up.railway.app/health.json

## Services

- [Web Research: Search + Read Pages as Markdown](https://www.zero.xyz/c/web-research-search-read-pages-as-markdown-3b8c14cc/llms.txt): $0.005/call via x402. Searches the live web for a question and fetches the full readable text of the top result pages as clean markdown, returning both ranked search results and page content in one call.
- [DNS Lookup API (x402)](https://www.zero.xyz/c/dns-lookup-api-x402-9b05b257/llms.txt): $0.001/call via x402. Resolves DNS records for a given hostname and optional record type, returning structured JSON results via pay-per-call USDC payment.
- [URL Unfurl / Link Preview Metadata API](https://www.zero.xyz/c/url-unfurl-link-preview-metadata-api-708eae1f/llms.txt): $0.001/call via x402. Fetches structured link preview metadata (title, description, hero image, site name, canonical URL, favicon, type) from any URL via OpenGraph, Twitter Card, or standard meta tags
- [Color Conversion API](https://www.zero.xyz/c/color-conversion-api-b044104c/llms.txt): $0.001/call via x402. Converts any color input (hex, rgb, hsl, or CSS name) into all color representations plus the nearest matching CSS color name
- [Geocoding API (Forward & Reverse)](https://www.zero.xyz/c/geocoding-api-forward-reverse-dab031f1/llms.txt): $0.001/call via x402. Converts an address or place name to latitude/longitude coordinates (forward geocoding) or converts lat/lon to a structured address (reverse geocoding), billed per-call in USDC via x402.
- [NLP Text Analysis API (language, sentiment, keywords, summary)](https://www.zero.xyz/c/nlp-text-analysis-api-language-sentiment-keywords-summary-466559eb/llms.txt): $0.001/call via x402. Performs local NLP on a text string in a single call — detecting language, scoring sentiment, extracting keywords, and returning an extractive summary — without an LLM round-trip.
- [QR Code Generator (api-production-17e1)](https://www.zero.xyz/c/qr-code-generator-api-production-17e1-56e0e881/llms.txt): $0.001/call via x402. Generates a QR code from text or a URL, returning the result as an SVG string or PNG data-URI, paid per-call in USDC via x402.
- [FX Currency Conversion & Exchange Rates](https://www.zero.xyz/c/fx-currency-conversion-exchange-rates-593bc4ff/llms.txt): $0.001/call via x402. Converts an amount between two currencies or retrieves all latest exchange rates for a base currency, using ECB reference rates, with pay-per-call pricing via x402.
- [Email Verification API (api-production-17e1)](https://www.zero.xyz/c/email-verification-api-api-production-17e1-9412f704/llms.txt): $0.001/call via x402. Verifies an email address by checking syntax, MX records, disposable domain status, and role-address flags, returning a deliverability classification.
- [Text Hashing API (MD5/SHA family)](https://www.zero.xyz/c/text-hashing-api-md5-sha-family-59d6c6ba/llms.txt): $0.001/call via x402. Computes a cryptographic hash digest of any input text using a specified algorithm (md5, sha1, sha256, sha384, sha512) and encoding (hex, base64, base64url), paid per-call via USDC.
- [Real-Time News Metasearch API](https://www.zero.xyz/c/real-time-news-metasearch-api-4024728a/llms.txt): $0.001000/call via x402. Searches recent news articles across multiple engines and returns titles, links, snippets, and published dates as JSON
- [Format Conversion API (CSV↔JSON, Markdown↔HTML)](https://www.zero.xyz/c/format-conversion-api-csv-json-markdown-html-35c432ce/llms.txt): $0.001/call via x402. Converts data between CSV and JSON formats (bidirectionally) and between Markdown and HTML (and HTML to plain text), pay-per-call via x402 USDC micropayment.
- [Image Search API (Multi-Engine, x402)](https://www.zero.xyz/c/image-search-api-multi-engine-x402-81e41661/llms.txt): $0.001/call via x402, rated 2.7/5 (1 review). Returns direct image URLs, source pages, and thumbnails as JSON from a multi-engine image metasearch (Bing Images and others), pay-per-query via x402 USDC.
- [Web Page Scraper – Clean Text & Markdown Extraction](https://www.zero.xyz/c/web-page-scraper-clean-text-markdown-extraction-9fd27651/llms.txt): $0.002/call via x402. Fetches a URL and returns the page title, readable markdown, and plain text extracted from the HTML — stripping boilerplate for AI consumption
- [Real-Time Web Search API (x402 Pay-Per-Query)](https://www.zero.xyz/c/real-time-web-search-api-x402-pay-per-query-92382dd1/llms.txt): $0.001/call via x402, rated 1.9/5 (3 reviews). Returns ranked organic search results (title, link, snippet) from a multi-engine metasearch (Bing, Brave, DuckDuckGo, Wikipedia, Mojeek) for a given query, paid per-call in USDC via x402.

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)