Explore APIs

Search 10,000+ gift card & voucher brands across 180+ countries by name and country. Pay in USDC via x402, no account.

Live Bring a Trailer auctions (collector cars, motorcycles, parts), optionally filtered by words in the title (e.g. porsche 911) or no-reserve only: title, model year, current bid with currency, auction end time, no-reserve flag, country and listing URL, soonest-ending first, from BaT's public auctions page.

Web search API for AI agents — find current information, news, documentation, competitors, prices or any fact that needs a fresh, citable source. Pay-per-call, no API key. Returns ranked results with title, URL, snippet, publish date and source from neural + keyword search over the live web, with automatic provider failover. Use when an agent asks: search the web, look up the latest on a topic, fi

Checksum tier (deterministic, no LLM): verifies the exact bytes served at a public URL hash to a claimed sha256, by independent double re-fetch. Use it to confirm a download or artifact matches its published checksum. Bodies up to 3 MB; dynamic pages return unverifiable, never a guess. sha256 only. First 100 checks per client are free: resend with header X-Use-Free-Allowance: yes and no payment to

Bounding box (min/max latitude and longitude) enclosing a radius in meters around a point, with pole and 180 degree handling.

Parse a scientific name into genus, species epithet, subspecies or variety, authorship and year, and check capitalisation.

Check a list of license ids against SPDX: current, deprecated or unknown, with the modern GNU -only / -or-later form.

Competition check for an x402 idea: sellers, hosts, price range and how many have real buyers. Open space or crowded?

Match a misspelled or branded drug name to RxNorm: best candidates with RxCUI identifiers, names and match scores.

US federal regulations in the pipeline — documents on public inspection at the Federal Register, filed by agencies and scheduled to publish, with type, agencies, filing time and the scheduled date. Use to see tomorrow's rules, notices and executive orders before they are published.

Use when an agent needs any web page as clean LLM-ready markdown (no ads, nav, or scripts) for RAG, research, or summarizing. Example input: GET /x402/v1/web-extract?url=https://example.com/article. Example output: {"url":"https://example.com/article","title":"…","markdown":"# Title\n\nBody text…","wordCount":812}

Global news article search by GDELT — normalized fulltext search across worldwide media (query syntax: phrases, OR, sourcecountry, theme, tone) returned as a clean snake_case envelope.

Recent earthquakes — search newest-first USGS seismic events by rolling time window and minimum magnitude, with revision, freshness, and provenance.

Nearest world cities to a latitude and longitude within a radius, with distance and compass bearing.

Rank US counties by July 2025 population estimate, nationally or within one state; largest or smallest first.

Extract the h1-h6 heading outline from supplied HTML and flag missing or multiple h1, skipped levels and empty headings.

Link a NAICS industry to its top SOC occupations, or a SOC occupation to its top industries, from the BLS employment matrix.

Analyze text (max 2000 chars): emoji count, distinct emoji, grapheme clusters, unqualified and text-presentation forms.

eBay listings search — live prices, condition, shipping, seller reputation, auctions & Buy It Now across supported regional eBay sites, with category, price band, condition, seller & location filters, sorted, as clean JSON.

Convert an airline radio callsign (SPEEDBIRD) to its airline, or an airline code or name to its callsign.

Can Googlebot, Bingbot and AI crawlers (GPTBot, ClaudeBot, CCBot) fetch this page? robots.txt, sitemap and noindex checked.

One query across Wikipedia, Hacker News, Crossref papers and Wikidata: top hits from each, source-labelled and interleaved.

Extrae el contenido de una URL y lo devuelve limpio en Markdown/HTML para el contexto de un LLM.

List a Harmonized System 2022 chapter (01-97): title, section, and its headings or 6-digit subheadings.

Crawl pre-flight for a domain: will you be blocked, is content behind a paywall, and how much is actually there. Returns per-bot robots.txt verdicts for 16 AI crawlers, crawlable page count from sitemaps, detected CDN and paid-access signals (x402, TollBit), plus a fetch/skip recommendation. Call before spending requests on an unknown domain.

Fetch a public https page and return its HTML tables as header and row arrays, with captions and row/column spans resolved.