{"x402Version":2,"name":"Neptyune Agent APIs","description":"Pay-per-call primitives for autonomous agents: DNS, email verification, SPF/DKIM/DMARC audit, WHOIS domain age, TLS certificates, page extraction, metadata, tech detection, link extraction, robots checks, URL expansion, feed parsing, prompt compression, summarisation, company intelligence and lead scoring. No signup, no API key.","documentation":"https://api.neptyune.one/apis","contact":"b16klick@gmail.com","updated":"2026-08-25T16:47:43.199Z","endpoints":[{"resource":"https://api.neptyune.one/api/x402/dns-records","method":"POST","name":"DNS records","description":"All DNS records for a domain (A, AAAA, MX, TXT, NS, CNAME, SOA) in one call.","tags":["dns","domain","records","mx","txt","infrastructure","lookup"],"mimeType":"application/json","input":{"domain":"example.com"},"accepts":[{"scheme":"exact","network":"eip155:8453","maxAmountRequired":"2000","amount":"2000","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","payTo":"0x0B7EB1D475f5CF1eb6b7Ff0c9a03D073c370f792","maxTimeoutSeconds":300,"extra":{"name":"USDC","version":"2"}}]},{"resource":"https://api.neptyune.one/api/x402/email-auth","method":"POST","name":"Email authentication audit","description":"SPF, DKIM and DMARC for a domain, parsed, with a pass/fail verdict and the specific misconfigurations. Tells you whether mail from this domain will authenticate.","tags":["email","spf","dkim","dmarc","deliverability","security","authentication","audit"],"mimeType":"application/json","input":{"domain":"example.com"},"accepts":[{"scheme":"exact","network":"eip155:8453","maxAmountRequired":"3000","amount":"3000","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","payTo":"0x0B7EB1D475f5CF1eb6b7Ff0c9a03D073c370f792","maxTimeoutSeconds":300,"extra":{"name":"USDC","version":"2"}}]},{"resource":"https://api.neptyune.one/api/x402/domain-age","method":"POST","name":"Domain age and registration","description":"Registration date, age in days, expiry and registrar from WHOIS. Useful for scoring whether a domain is newly registered (a common spam and fraud signal).","tags":["whois","domain","age","registration","fraud-detection","risk","enrichment"],"mimeType":"application/json","input":{"domain":"example.com"},"accepts":[{"scheme":"exact","network":"eip155:8453","maxAmountRequired":"4000","amount":"4000","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","payTo":"0x0B7EB1D475f5CF1eb6b7Ff0c9a03D073c370f792","maxTimeoutSeconds":300,"extra":{"name":"USDC","version":"2"}}]},{"resource":"https://api.neptyune.one/api/x402/ssl-info","method":"POST","name":"TLS certificate details","description":"Certificate issuer, subject, validity window, days until expiry and alternative names for any host.","tags":["tls","ssl","certificate","security","expiry","monitoring"],"mimeType":"application/json","input":{"domain":"example.com"},"accepts":[{"scheme":"exact","network":"eip155:8453","maxAmountRequired":"2000","amount":"2000","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","payTo":"0x0B7EB1D475f5CF1eb6b7Ff0c9a03D073c370f792","maxTimeoutSeconds":300,"extra":{"name":"USDC","version":"2"}}]},{"resource":"https://api.neptyune.one/api/x402/email-verify","method":"POST","name":"Email verification","description":"Validates an address: syntax, domain resolves, MX present, disposable-provider detection, role-account detection, free-provider detection, and a deliverability verdict. Market rate is about $0.008 per check.","tags":["email","verification","validation","deliverability","lead-qualification","list-hygiene"],"mimeType":"application/json","input":{"email":"someone@example.com"},"accepts":[{"scheme":"exact","network":"eip155:8453","maxAmountRequired":"4000","amount":"4000","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","payTo":"0x0B7EB1D475f5CF1eb6b7Ff0c9a03D073c370f792","maxTimeoutSeconds":300,"extra":{"name":"USDC","version":"2"}}]},{"resource":"https://api.neptyune.one/api/x402/mail-provider","method":"POST","name":"Mail provider detection","description":"Identifies who hosts a domain's email (Google Workspace, Microsoft 365, Zoho, Proton, self-hosted and others) from its MX records.","tags":["email","mx","provider","google-workspace","microsoft-365","enrichment"],"mimeType":"application/json","input":{"domain":"example.com"},"accepts":[{"scheme":"exact","network":"eip155:8453","maxAmountRequired":"2000","amount":"2000","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","payTo":"0x0B7EB1D475f5CF1eb6b7Ff0c9a03D073c370f792","maxTimeoutSeconds":300,"extra":{"name":"USDC","version":"2"}}]},{"resource":"https://api.neptyune.one/api/x402/page-extract","method":"POST","name":"Page text extraction","description":"Clean readable text from any URL with scripts, styles and markup stripped. The primitive an agent needs before it can reason about a page. Market rate for scraping is roughly $0.83 to $1.66 per thousand pages.","tags":["scraping","web","text-extraction","content","crawler","research"],"mimeType":"application/json","input":{"url":"https://example.com"},"accepts":[{"scheme":"exact","network":"eip155:8453","maxAmountRequired":"6000","amount":"6000","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","payTo":"0x0B7EB1D475f5CF1eb6b7Ff0c9a03D073c370f792","maxTimeoutSeconds":300,"extra":{"name":"USDC","version":"2"}}]},{"resource":"https://api.neptyune.one/api/x402/page-meta","method":"POST","name":"Page metadata","description":"Title, description, canonical URL, OpenGraph and Twitter card tags, favicon and any JSON-LD structured data from a URL.","tags":["metadata","opengraph","json-ld","seo","structured-data","web"],"mimeType":"application/json","input":{"url":"https://example.com"},"accepts":[{"scheme":"exact","network":"eip155:8453","maxAmountRequired":"3000","amount":"3000","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","payTo":"0x0B7EB1D475f5CF1eb6b7Ff0c9a03D073c370f792","maxTimeoutSeconds":300,"extra":{"name":"USDC","version":"2"}}]},{"resource":"https://api.neptyune.one/api/x402/tech-detect","method":"POST","name":"Technology detection","description":"Detects the stack a site runs on: CMS, framework, analytics, ecommerce, hosting and CDN, from response headers and page markup.","tags":["technology","stack-detection","cms","analytics","competitive-intelligence","enrichment"],"mimeType":"application/json","input":{"url":"https://example.com"},"accepts":[{"scheme":"exact","network":"eip155:8453","maxAmountRequired":"4000","amount":"4000","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","payTo":"0x0B7EB1D475f5CF1eb6b7Ff0c9a03D073c370f792","maxTimeoutSeconds":300,"extra":{"name":"USDC","version":"2"}}]},{"resource":"https://api.neptyune.one/api/x402/links-extract","method":"POST","name":"Link extraction","description":"Every link on a page, split into internal and external, deduplicated and resolved to absolute URLs. Also surfaces any email addresses and social profiles found.","tags":["links","crawler","web","emails","social","research"],"mimeType":"application/json","input":{"url":"https://example.com"},"accepts":[{"scheme":"exact","network":"eip155:8453","maxAmountRequired":"3000","amount":"3000","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","payTo":"0x0B7EB1D475f5CF1eb6b7Ff0c9a03D073c370f792","maxTimeoutSeconds":300,"extra":{"name":"USDC","version":"2"}}]},{"resource":"https://api.neptyune.one/api/x402/robots-check","method":"POST","name":"Robots and sitemap","description":"Fetches robots.txt, tells you whether a given path and user-agent may be crawled, and lists declared sitemaps. Lets an agent check crawl permission before scraping.","tags":["robots-txt","crawling","compliance","sitemap","permission"],"mimeType":"application/json","input":{"domain":"example.com","path":"/","user_agent":"*"},"accepts":[{"scheme":"exact","network":"eip155:8453","maxAmountRequired":"2000","amount":"2000","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","payTo":"0x0B7EB1D475f5CF1eb6b7Ff0c9a03D073c370f792","maxTimeoutSeconds":300,"extra":{"name":"USDC","version":"2"}}]},{"resource":"https://api.neptyune.one/api/x402/url-expand","method":"POST","name":"URL expansion","description":"Follows a shortened or tracking URL through every redirect and returns the full chain plus the final destination. Lets an agent see where a link really goes before visiting it.","tags":["url","redirect","unshorten","security","phishing","link-analysis"],"mimeType":"application/json","input":{"url":"https://bit.ly/example"},"accepts":[{"scheme":"exact","network":"eip155:8453","maxAmountRequired":"2000","amount":"2000","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","payTo":"0x0B7EB1D475f5CF1eb6b7Ff0c9a03D073c370f792","maxTimeoutSeconds":300,"extra":{"name":"USDC","version":"2"}}]},{"resource":"https://api.neptyune.one/api/x402/rss-parse","method":"POST","name":"Feed parser","description":"Parses an RSS or Atom feed into structured items with title, link, date and summary. Also finds the feed automatically if given a site URL.","tags":["rss","atom","feed","news","monitoring","content"],"mimeType":"application/json","input":{"url":"https://example.com/feed.xml"},"accepts":[{"scheme":"exact","network":"eip155:8453","maxAmountRequired":"3000","amount":"3000","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","payTo":"0x0B7EB1D475f5CF1eb6b7Ff0c9a03D073c370f792","maxTimeoutSeconds":300,"extra":{"name":"USDC","version":"2"}}]},{"resource":"https://api.neptyune.one/api/x402/compress","method":"POST","name":"Prompt compression","description":"Strips filler, hedging and restated context from text while preserving every fact and instruction. Agents pay per token, so compressing a long context typically costs far less than the tokens it saves. Returns the compressed text with before and after token estimates.","tags":["prompt-compression","tokens","cost-optimization","llm","context","efficiency"],"mimeType":"application/json","input":{"text":"the long prompt or context to compress","level":"normal | aggressive"},"accepts":[{"scheme":"exact","network":"eip155:8453","maxAmountRequired":"3000","amount":"3000","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","payTo":"0x0B7EB1D475f5CF1eb6b7Ff0c9a03D073c370f792","maxTimeoutSeconds":300,"extra":{"name":"USDC","version":"2"}}]},{"resource":"https://api.neptyune.one/api/x402/summarize","method":"POST","name":"Summarise","description":"Turns long text into a summary at the length you ask for. Send raw text or a URL and it fetches the page first.","tags":["summarization","llm","text","content","research"],"mimeType":"application/json","input":{"text":"long text (or use url)","url":"https://example.com","sentences":3},"accepts":[{"scheme":"exact","network":"eip155:8453","maxAmountRequired":"4000","amount":"4000","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","payTo":"0x0B7EB1D475f5CF1eb6b7Ff0c9a03D073c370f792","maxTimeoutSeconds":300,"extra":{"name":"USDC","version":"2"}}]},{"resource":"https://api.neptyune.one/api/x402/company-intel","method":"POST","name":"Company intelligence","description":"Structured company profile from a website URL: what they do, industry, likely tool stack, estimated team size and the internal requests their team plausibly receives. Built for lead research, qualification and personalised outbound.","tags":["company","enrichment","lead-research","sales-intelligence","prospecting","b2b"],"mimeType":"application/json","input":{"url":"https://example.com"},"accepts":[{"scheme":"exact","network":"eip155:8453","maxAmountRequired":"20000","amount":"20000","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","payTo":"0x0B7EB1D475f5CF1eb6b7Ff0c9a03D073c370f792","maxTimeoutSeconds":300,"extra":{"name":"USDC","version":"2"}}]},{"resource":"https://api.neptyune.one/api/x402/lead-score","method":"POST","name":"Lead scoring","description":"Scores a company domain as an outbound prospect: combines domain age, email authentication health, mail provider, detected stack and site signals into a 0-100 score with the reasoning. One call instead of five.","tags":["lead-scoring","qualification","sales","b2b","enrichment","prospecting"],"mimeType":"application/json","input":{"domain":"example.com"},"accepts":[{"scheme":"exact","network":"eip155:8453","maxAmountRequired":"6000","amount":"6000","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","payTo":"0x0B7EB1D475f5CF1eb6b7Ff0c9a03D073c370f792","maxTimeoutSeconds":300,"extra":{"name":"USDC","version":"2"}}]}]}