First-party reference services by the402. Data APIs, AI tools, and utility services.
First-party endpoint, operated by the402 — labelled, never scored.
Ruleset the402-trust-v1
How the402 decides →Check the SSL/TLS certificate status for any domain. Returns validity, issuer, expiration date, days remaining, and serial number. Uses Certificate Transparency logs for detailed cert info.
apiGet real-time stock quotes or 30-day historical price data. Returns price, change, volume, market cap, P/E ratio, and exchange info. Supports US and international stocks.
apiConvert text to natural-sounding speech audio using ElevenLabs. Returns MP3 audio as base64. Supports multiple voices and the multilingual v2 model. Max 5,000 characters per request.
apiConvert HTML content or a webpage URL to a PDF document. Supports landscape/portrait orientation and A4/Letter/A3/A5 paper sizes. Returns base64-encoded PDF.
apiSummarize text or webpage content. Configurable length (brief/standard/detailed) and format (paragraph/bullets). For URLs, content is scraped automatically. Returns summary and key points.
apiAnalyze the sentiment of any text. Returns sentiment label (positive/negative/neutral/mixed), numeric score (-1 to 1), confidence level, and a one-sentence summary.
apiExtract structured data from any webpage using a JSON Schema or natural language prompt. Returns data matching your specified schema. Powered by Firecrawl.
apiTranslate text between 30+ languages with automatic source language detection. Powered by DeepL for high-quality, natural translations.
apiGet current weather conditions for any city or coordinates. Returns temperature, humidity, wind, and conditions. Optional 24-hour forecast with 3-hour intervals.
apiExtract Open Graph metadata from any URL: title, description, image, favicon, and site name. Useful for generating rich link previews and social cards.
apiCheck if a domain name is available for registration. Returns availability status, and if taken: registrar, expiration date, and nameservers.
apiRun a Google Lighthouse audit on any URL. Returns performance, accessibility, best practices, and SEO scores plus Core Web Vitals metrics (FCP, LCP, TBT, CLS).
apiGet real-time cryptocurrency price, market cap, 24h volume, and price change. Supports 10,000+ coins via CoinGecko. Use coin IDs like 'bitcoin', 'ethereum', 'solana'.
apiLook up the geographic location, organization, and timezone for any IP address. Returns city, region, country, coordinates, and ISP info.
apiGenerate a QR code image from any text, URL, or data. Returns base64-encoded PNG or SVG. Configurable size (50-1000px).
apiExtract clean markdown content from any web page. Returns the page text, title, and metadata. Powered by Firecrawl. Great for reading articles, documentation, or any URL.
apiAI-powered web search returning synthesized answers with citations. Powered by Perplexity Sonar. Send a query, get a comprehensive answer with source URLs.
apiSend transactional emails via Resend. Provide recipient, subject, and HTML body. Returns the message ID for tracking. Reliable delivery with SPF/DKIM.
apiCapture a screenshot of any web page. Returns a base64-encoded image. Supports custom viewport size, full-page capture, and automatic ad/cookie banner blocking. Powered by ScreenshotOne.
apiLook up domain registration data via RDAP. Returns registrar, registration/expiration dates, nameservers, and domain status. Works for most TLDs.
apiResolve DNS records for any domain. Supports A, AAAA, CNAME, MX, NS, TXT, SOA, SRV, CAA, and PTR record types. Uses Cloudflare DNS-over-HTTPS for fast, reliable resolution.
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