Validate a cryptocurrency address with full checksum verification (not just regex). Returns {chain, address, valid, canonical, format, reason}. Chains: btc (P2PKH, P2S…
Listing info 80/100
Search US patent applications and grants via the USPTO Open Data Portal. Query: q (required, 2+ chars), yearFrom / yearTo (optional filing-year bounds), applicationTyp…
Listing info 80/100
Look up an ISO 4217 currency. Pass code (alphabetic like USD, or 3-digit numeric like 840) for the canonical record, or country to find the currency/currencies a count…
Listing info 80/100
Look up an IETF RFC by number. Pass number as RFC2616, 2616, or the integer 2616. Returns the RFC title, authors, publication date, status (e.g. INTERNET STANDARD, PRO…
Listing info 80/100
Security and provenance for an open-source package, composed live from three authoritative sources in one call. Pass ecosystem (npm, pypi, go, maven, cargo, nuget) + n…
Listing info 80/100
Resolve a researcher by ORCID iD. Pass orcid (e.g. 0000-0002-1825-0097, with or without the https://orcid.org/ prefix). Returns the researcher name, affiliations (empl…
Listing info 80/100
Sanctions-screen a crypto wallet address against the US Treasury OFAC SDN list's published Digital Currency Addresses (BTC/ETH/USDT/XMR and more). Exact match — return…
Listing info 80/100
Fetch any URL and extract structured page metadata: title, description, og:image, canonical, favicon, site name, author, published time, language, and the first ~500 c…
Listing info 80/100
USDA FoodData Central nutrition lookup. Two modes: search (query=cheddar cheese) returns matching foods with fdcId, description, data type, category, and brand; detail…
Listing info 80/100
Official UK company registry (Companies House). Two modes: pass query to search companies by name (returns company number, name, status, type, incorporation date, addr…
Listing info 80/100
Geolocate a single IPv4 or IPv6 address. Returns country (name + ISO code), region (name + code), city, ZIP, lat/lon, timezone, ISP, organization, and AS number + name…
Listing info 80/100
Authoritative MITRE ATT&CK (Enterprise) technique lookup. Pass id (e.g. T1059 or sub-technique T1059.001) for the canonical technique — name, tactics (kill-chain phase…
Listing info 80/100
Indexed listings, not certifications. Prices and protocols are publisher declarations. How the index works