493 services carry this tag in their source record. Tags come from the provider, not from us — a tag is a claim about what the service does, not proof that it does it well.
RFC 9530: title, authors, publication date, status (Internet Standard, Proposed Standard, Informational…), page count, what obsoletes or updates it and what it obsoletes, keywords, abstract and links to the HTML/text ver...
RFC 9535: title, authors, publication date, status (Internet Standard, Proposed Standard, Informational…), page count, what obsoletes or updates it and what it obsoletes, keywords, abstract and links to the HTML/text ver...
RFC 9562: title, authors, publication date, status (Internet Standard, Proposed Standard, Informational…), page count, what obsoletes or updates it and what it obsoletes, keywords, abstract and links to the HTML/text ver...
RFC 9631: title, authors, publication date, status (Internet Standard, Proposed Standard, Informational…), page count, what obsoletes or updates it and what it obsoletes, keywords, abstract and links to the HTML/text ver...
RFC 9635: title, authors, publication date, status (Internet Standard, Proposed Standard, Informational…), page count, what obsoletes or updates it and what it obsoletes, keywords, abstract and links to the HTML/text ver...
Free Reference audiobooks: public-domain recordings in LibriVox's "Reference" genre (57 titles) with runtime, language and mp3 zip / RSS / archive.org links. Add words to narrow. $0.01 per page of 20.
Run before sending SOL or paying fees, to confirm the wallet really has enough. Never trust a balance remembered from earlier in a chat. Reads a wallet's SOL balance straight from the chain.
A short, attributable Wikipedia summary of one article in one GET: pass a title and a language and get the title, one-line description, plain-text extract, article type, Wikidata item, page URL and thumbnail, plus the ex...
RFC 6454: title, authors, publication date, status (Internet Standard, Proposed Standard, Informational…), page count, what obsoletes or updates it and what it obsoletes, keywords, abstract and links to the HTML/text ver...
Reference tables for a US tax year and filing status: income brackets, standard deduction, FICA constants, and capital-gains breakpoints. Pure lookup, not tax advice.
Sub-GHz band plan by country (US, EU, JP, CN): every allocated range with service name and access conditions, as a single machine-readable table.
HTTP status code reference: give a class like 4xx to list every code in it with its reason phrase, a specific code for its meaning and typical use, or a word (e.g. 'teapot', 'redirect', 'auth') to search. Covers all IANA...
HTTP status code explained: the standard reason phrase, what it means and what a client should do, for every common code, or the full list for a class like '4xx'. $0.01 per lookup.