OFAC sanctions screening for a crypto wallet address against the U.S. Treasury SDN list

Arbitrum ERC-20 allowance - how much a spender can move from an owner, with unlimited-approval flag

Arbitrum ERC-20 token transfer history - decoded Transfer events, filterable to one wallet

New BNB Chain token launches with safety verdicts - fresh pools scored for honeypot, tax and ownership risk

Polygon ERC-20 allowance - how much a spender can move from an owner, with unlimited-approval flag

Polygon ERC-20 token transfer history - decoded Transfer events, filterable to one wallet

Country profile by name or ISO code - capital, region, languages, currencies and World Bank indicators

Biological pathways for a gene or protein (Reactome) - pathway ids, names, disease flags and links

Gene reference from MedlinePlus Genetics - full name, normal function and related health conditions

Recent bird occurrence records near any point - species, time, location and distance (GBIF)

ClinVar variant clinical significance by rsID, VCV or HGVS - classification, review stars, conditions and genes

Protein function lookup by UniProt accession or gene symbol - function, location, diseases, GO terms and structures

Periodic table element data by symbol, name or atomic number - mass, configuration, melting and boiling points

AlphaFold predicted protein structure for a UniProt accession or gene - confidence bands and download links

English dictionary definitions by part of speech, with examples, pronunciation and word frequency

Lichess player profile - title, ratings and game counts per time control, with win/loss/draw totals

Rare disease reference from Orphanet by name or ORPHAcode - definition, codes, inheritance and phenotypes

On this day in history - notable events, births, deaths or holidays for any date, from Wikipedia

Protein Data Bank structure lookup by PDB id - method, resolution, chains, ligands, citation and files

BNB Chain read-only contract call (eth_call) - return data, with reverts reported cleanly