Every agent-payable API.

Call when an agent needs a shake128 digest of text, encoded as hex. No network and no LLM. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/digest-shake128-hex first.

Call when an agent needs a shake256 digest of text, encoded as base32. No network and no LLM. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/digest-shake256-base32 first.

Call when an agent needs a shake256 digest of text, encoded as base64. No network and no LLM. Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/digest-shake256-base64 first.

Call when an agent needs a shake256 digest of text, encoded as base64url. No network and no LLM. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/digest-shake256-base64url first.

Call when an agent needs a shake256 digest of text, encoded as hex. No network and no LLM. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/digest-shake256-hex first.

DIGITAL.ATOM.1 fixture JSON. $0.005 USDC Solana exact.

1 fresh lemonade: an illustrated lemonade card (SVG)

Groups caller-supplied scalar field changes by field name, selects the highest version, and reports a conflict when equal-version values differ. It does not connect to a twin platform, merge nested documents or resolve semantic conflicts.

Point-to-point directions between 2 and 10 stops by car, bike or on foot: total and per-leg distance and travel time, snapped stops, route geometry as GeoJSON or polyline Point-to-point directions between 2 and 10 stops by car, bike or on foot: total an…

Directory of AI companion / adult-AI tools: pricing (verified where possible), features, and content-policy notes.

Search every indexed x402 resource across Coinbase Bazaar, Agent402 and Agentic Market in one call (7k+ tools): name, description, price, seller, network and real usage metrics (calls, unique buyers, settled volume), with per-source freshness data. The meta-tool for agents: find the right paid tool for any task first, then call it.

Discover a site's XML sitemaps (via robots.txt Sitemap: directives, an explicit sitemap URL, or the conventional /sitemap.xml) and parse them into a bounded list of URLs with their lastmod, changefreq and priority. Follows sitemap-index files to their child sitemaps. Fetches and URL counts are capped (with a `truncated` flag) to stay fast and memory-bounded. The reliable way for an agent to enumerate a site's pages.

Search and discover creators across multiple platforms using advanced filtering (location, gender, language, followers, engagement, audience demographics, brand deals, and more). Supports Instagram, YouTube, TikTok, Twitch, and Twitter. Returns paginated list of creator profiles with analytics. 0.01 upstream credits per creator returned.

Great-circle distance (km and miles) between two IP addresses, with each endpoint's city/country/lat/lng.

Calculates WGS84 great-circle distance and initial bearing. Missing facts are returned as null and named in unavailable_fields where applicable. Derived values disclose their method; source-backed values disclose source, time window and age.

Distance damage falloff: Estimate damage after linear falloff between effective range and max range.

Which businesses carry public-record distress markers? One observational row per subject across ten tracked marker types — WARN notice, Form 5500 participant drop, final filing, or Schedule H asset decline, IRS auto-revocation, SEC NT / 8-K / going-concern filings, FMCSA authority revocation, active enforcement case — with per-marker counts, dates, and details. Ticker/CIK-mapped where identifier-verified, basis disclosed. Counts as filed, never a score. NOT a consumer report, no FCRA use.

Django Declared dependencies: Live PyPI declared dependencies for Django. Package name can be overridden.

Django Latest release summary: Live PyPI latest release summary for Django. Package name can be overridden.

Django Recent release history: Live PyPI recent release history for Django. Package name can be overridden.

Complete AI-powered smart contract security audit report - analyzes contract code against security checklist and provides detailed findings

Takes two documents, by URL, inline base64 or raw text, extracts the text of each and compares them. Paragraphs are the unit: the answer lists every block that was removed, added, or kept but reworded, and for reworded blocks it names the individual words that went and came, so a single changed number in a long clause is visible instead of the whole clause being flagged. Alongside the content diff a structural comparison reports headings, paragraph, list and table-line counts on both sides.

Docker Hub image facts: pull count, stars, description, last push, and recent tags with sizes and architectures

Document parsing: convert office documents (docx, pptx, xlsx, pdf, odt, ods, odp, rtf, epub, csv, doc, ppt) to clean GitHub-Flavored Markdown. Pass a document URL or base64-encoded bytes. Deterministic local Rust converter (Firecrawl anydoc) — fast, typed structure preserved (headings, tables, lists), no OCR for scanned/image-only PDFs.

Normalize public text, HTML, JSON or XML documents into source-backed JSON

Does this x402 seller actually deliver when paid? We test the full flow as a real buyer: quote, 402 requirements validation, a real capped probe purchase, settlement and delivery — not a lint that stops before money moves. The signed verdict states exactly which steps ran and what failed: 402-again loops, wrong payTo, malformed accepts, phantom endpoints. agenteconomy.cloud (mcp-pricing-v1.1)

True cost of trading DOGE on Hyperliquid, measured on Vaunt's own IOC taker orders: slippage vs mid (p50/p90 bps), taker fee paid, wall-clock to fill, fill rate, against the venue-class median, plus spread, round-trip cost, depth within 1% and funding APR. Real fills, not quotes.

Dogecoin (DOGE) price in USD now, with 24h and 7d change — Genesis402 / UnyKorn Operator Network

dogwifhat (WIF) price in USD now, with 24h and 7d change — Genesis402 / UnyKorn Operator Network

The Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. Days of Issuance: how the current license price compares to the pace of new-Branch issuance.

DOI lookup: citation metadata, authors, journal, citations, abstract — Genesis402 / UnyKorn Operator Network

Dokimo Verify API (GET) - scheme demo: recomputes a sample dokimo-merkle-v1 proof to its root. For real caller verification, POST /paid/verify (recompute + on-chain anchor check). Scheme: /merkle-spec.html.

Prüft am Objekt dokument den Befund Zahl renderblockierender Ressourcen.

Prüft am Objekt dokument den Befund Zahl geladener Ressourcen.

Prüft am Objekt dokument den Befund Zeit bis zum sichtbaren Renderstart.

Prüft am Objekt dokument den Befund Zeit bis zum ersten Byte.

Prüft am Objekt dokument den Befund Anteil moderner Bildformate.

Prüft am Objekt dokument den Befund TLS-Aushandlungszeit.

Prüft am Objekt dokument den Befund Verbindungsaufbauzeit.

Prüft am Objekt dokument den Befund übertragene Bytemenge.

Use when an agent needs to check whether a domain or an email's domain is real, new, disposable or spoofable before outreach/KYC: DNS (A/AAAA/MX/NS), SPF and DMARC parsing, RDAP registration age and registrar, disposable-provider flag, 0-100 score and verdict. $0.003 per call, USDC on Base (x402). No SMTP probing; email local part is never sent upstream or logged. Upstream errors are not charged.

Look up a domain name and check whether it is registered or available. Queries authoritative registry data via RDAP to return registration status, the registrar, creation and expiry dates, nameservers and status flags. Real-time domain availability check, WHOIS-style lookup and expiry monitoring for any domain.

Find contacts with valid emails at a given domain with given roles. Limited to 5 concurrent sync requests.

Registration age, expiry and registry status for any domain, from RDAP — the registries' own protocol. Returns days since registration, days to expiry, registrar, EPP status codes, nameservers and DNSSEC as one GO / HOLD / STOP verdict. Domain age is the strongest cheap signal in invoice and vendor-impersonation fraud: the payment details that change always arrive from a domain registered weeks ago. Refuses rather than guessing when a registry publishes no RDAP.

Check if a domain is available or registered via RDAP (no key needed). Pay per call with USDC (x402) or credits - archtools.dev

Check whether a domain has valid MX records and is not on the disposable list; also reports free-provider.

Everything DNS says about one domain in a single call: whether it is registered, its A and AAAA addresses, nameservers, MX servers, SPF and DMARC, DNSSEC, and whether it looks parked. Built for going through a list of domains one at a time. Live DNS, no API key, no account.

Resolves A, AAAA, MX, NS, TXT, CAA and SOA, reads the WHOIS record of the responsible registry, checks SPF, DMARC and known DKIM selectors, opens a TLS handshake for issuer, validity, chain and SAN list, and collects subdomains from Certificate Transparency. Fields that a registry refuses to answer are reported as unknown, never guessed.

RDAP registration card (dates, registrar, statuses, nameservers, DNSSEC) + derived flags + inline DNS summary — cached ≤24h

Multi-record DNS summary (A/AAAA/CNAME/MX/NS/TXT/SOA/CAA + SPF/DMARC) over DoH — ALWAYS live