# Anokha Web Tools > Pay-per-call tools for AI agents via x402 (USDC on Base, eip155:8453). No API key. OpenAPI: https://tools.anokha.space/openapi.json ## Which tool to use - Read a web page for an LLM: start with GET /v1/markdown ($0.004). If the page is JavaScript-heavy or comes back empty, use POST /v1/scrape ($0.008). - Need a picture of a page: GET /v1/screenshot. Need all links: GET /v1/links. - Read a PDF from a URL: GET /v1/pdf. Turn your own Markdown report into a PDF file: POST /v1/render/pdf. Share it as a web page: POST /v1/publish. - Visuals for a report: POST /v1/chart (data to PNG/SVG), POST /v1/diagram (Graphviz DOT), POST /v1/qr. - Literature research: GET /v1/papers (OpenAlex, citations, abstracts), GET /v1/arxiv (preprints). Quick facts: GET /v1/wiki. - Check a domain in one call: GET /v1/domain/report. Individual checks: /v1/dns, /v1/rdap, /v1/tls. - Utilities: GET /v1/fx (ECB exchange rates), GET /v1/time (time zones), GET /v1/random (secure random). - Failed calls (4xx/5xx) are never charged. ## Endpoints - [GET https://tools.anokha.space/v1/markdown?url=VALUE]: Fetch any web page and return its main content as clean Markdown (boilerplate, nav, ads removed) plus title, author, date. Ideal for LLM context. $0.004 - [GET https://tools.anokha.space/v1/pdf?url=VALUE]: Download a PDF from a URL and return its text per page (up to 200 pages) plus metadata. $0.006 - [GET https://tools.anokha.space/v1/meta?url=VALUE]: Return a URL's metadata: title, description, OpenGraph/Twitter tags, canonical URL, language, favicon, final URL and status. $0.002 - [GET https://tools.anokha.space/v1/links?url=VALUE]: Fetch a web page and return every link on it (absolute URL, anchor text, internal/external flag), deduplicated. $0.002 - [GET https://tools.anokha.space/v1/dns?domain=VALUE]: DNS lookup for a domain: A, AAAA, MX, TXT, NS, CNAME, CAA records (SPF/DMARC included via TXT). $0.001 - [GET https://tools.anokha.space/v1/rdap?domain=VALUE]: Domain registration data via RDAP: registrar, creation/expiry/updated dates, status, nameservers, domain age in days. $0.002 - [GET https://tools.anokha.space/v1/tls?domain=VALUE]: TLS certificate check for a host: issuer, subject, SANs, validity dates, days until expiry, TLS version. $0.002 - [POST https://tools.anokha.space/v1/render/pdf]: Convert Markdown, HTML or plain text into a clean, printable PDF. Returns a public download URL (kept 30 days). Tables, code blocks, headings supported. $0.02 - [POST https://tools.anokha.space/v1/publish]: Publish Markdown, HTML or text as a styled web page at a public URL (30 days). Share reports and results with humans. Scripts are disabled. $0.03 - [POST https://tools.anokha.space/v1/chart]: Render a chart (line, bar, barh, scatter, area, pie) from JSON data to PNG or SVG. Returns a public image URL (30 days). $0.01 - [POST https://tools.anokha.space/v1/diagram]: Render a Graphviz DOT diagram (flowcharts, architecture, graphs, org charts) to SVG, PNG or PDF. Returns a public URL (30 days). $0.01 - [POST https://tools.anokha.space/v1/qr]: Generate a QR code PNG for any text or URL. Returns a public image URL and base64 PNG. $0.002 - [GET https://tools.anokha.space/v1/papers?q=VALUE]: Search 250M+ scholarly works (OpenAlex): title, authors, year, venue, DOI, citation count, open-access PDF link, abstract. Sort by relevance, citations or recency. $0.01 - [GET https://tools.anokha.space/v1/arxiv?q=VALUE]: Search arXiv preprints: title, authors, abstract, categories, dates and PDF link. Sort by relevance or newest. $0.008 - [GET https://tools.anokha.space/v1/fx?base=USD&to=VALUE]: Currency exchange rates and conversion for 30+ currencies from official European Central Bank reference rates. $0.002 - [GET https://tools.anokha.space/v1/wiki?q=VALUE]: Find the best-matching Wikipedia article for a query and return its summary, description, URL and thumbnail (any language). $0.002 - [GET https://tools.anokha.space/v1/time?tz=VALUE]: Current time in any IANA time zone, or convert a date-time between zones. Returns ISO time, UTC offset, DST flag, weekday. $0.001 - [GET https://tools.anokha.space/v1/random?kind=VALUE]: Cryptographically secure random values: integers in a range, floats, UUIDs, hex tokens, random choice or shuffle of a list. $0.001 - [POST https://tools.anokha.space/v1/scrape]: Scrape any page with a real headless browser (JavaScript rendered). Firecrawl-compatible: formats markdown, html, rawHtml, links, screenshot. Use for SPAs and sites where plain fetch fails. $0.008 - [GET https://tools.anokha.space/v1/screenshot?url=VALUE]: Screenshot any public web page with a headless browser (desktop or mobile, optional full page). Returns a PNG URL (30 days). $0.01 - [GET https://tools.anokha.space/v1/domain/report?domain=VALUE]: One-call domain audit: DNS (MX, SPF, DMARC), RDAP registration and age, TLS certificate validity and expiry, HTTP security headers, plus a summary of checks. $0.008