411 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.
Search Bluesky and Hacker News for every query; for a single public tag, also search Mastodon's anonymous tag timeline. Mastodon is not applicable to phrase search. A failure from any source promised for that query retur...
Find the best x402 API for a task. Describe what you need (for example "remove the background from a photo") and get the matching sellers from the CDP Bazaar ranked by relevance, how many distinct buyers paid them in 30...
Brazil's tax transition calendar, year by year from 2026 to 2033: which taxes are in force each year, at what rate, and when PIS/COFINS, IPI, ICMS and ISS are extinguished. The context an agent needs to know whether the...
Semantic search over an agent's own persistent memories (wallet-scoped). Free with a valid x-api-key.
Search the Coinbase x402 Bazaar for paid resources by natural-language query.
V.I.E allowance schedule for July 2026 — V.I.E allowance schedule published as BAREME VIE AU 1ER JUILLET 2026. It lists country and city codes, common allowance, geographic allowance, and total indemnity amounts in euros...
Keenable web search for AI agents: ranked results with title, URL and snippet for a natural-language or keyword query. Pay per request, no API key.
Get a public X (Twitter) user's most recent posts by username or user ID, one page of tweets and a cursor. Fixed price per request, for up to 20 results; an empty result is still charged. Limited to 20 requests per secon...
Paid multi-source search evidence card (cycle 218, x402 $0.01) - GET ?query=<TERMS> OR ?sample=1|2|3 OR POST application/json {query}. KEYLESS Wikipedia search API + OpenLibrary search API + Hacker News Algolia API -- no...
CVE vulnerability lookup by id - full CVE record with description, CVSS base score and severity, CWE weakness, affected products and versions, references, published and modified dates, and the fix. Security vulnerability...
Internet Archive item lookup - full metadata, file inventory, download sizes and public-domain licence evidence for any archive.org identifier (cycle 234, x402 $0.01) - GET ?id=<IDENTIFIER> OR ?identifier=<IDENTIFIER> OR...
Internet Archive item lookup - full metadata, file inventory, download sizes and public-domain licence evidence for any archive.org identifier. ALIAS PATH of /api/archive-item-lookup, served at the exact slug the router'...
Open Library book search - openlibrary book search, public domain book search by title or author, book metadata, first published year, edition count and downloadable archive.org identifiers. ALIAS PATH of /api/openlibrar...
IP geolocation lookup - where is this IP address and what network does it belong to. ALIAS PATH of /api/ip-geolocation, published with the EXACT slug the router's winning row publishes. MEASURED DEMAND: this slug scores...
NASA image search - nasa image search, nasa photo library, space images api, public domain NASA imagery search by keyword. Returns matching NASA images with nasa_id, title, description, date_created, centre, keywords, th...
Open Library book search - openlibrary book search, public domain book search by title or author, book metadata, first published year, edition count and downloadable archive.org identifiers. ALIAS PATH of /api/openlibrar...
Open Library book search - openlibrary book search, public domain book search by title or author, book metadata, first published year, edition count and downloadable archive.org identifiers. Returns matching books ranked...
NASA image search - nasa image search, nasa photo library, space images api, public domain NASA imagery search by keyword. ALIAS PATH of /api/nasa-image-search at the exact slug the router's winning rows publish. via x40...
Patent search - search patents by keyword, technology or assignee; returns publication number, title, dates, inventors, assignee and snippet. KEYLESS Google Patents. via x402, $0.01. ALIAS PATH of /api/patent-search.
Entity lookup - resolve a company, product, person or place to its canonical knowledge-graph entity: the Wikipedia summary, the Wikidata Q-id, the description, aliases, sitelinks and key facts. GET ?q= OR ?query= OR ?nam...
Entity lookup - resolve a company, product, person or place to its canonical knowledge-graph entity, Wikipedia summary and Wikidata Q-id. KEYLESS. via x402, $0.01. ALIAS PATH of /api/entity-lookup.
Product barcode lookup - scan a barcode and get the product name, brand, quantity, categories, allergens, ingredients and nutrition facts. KEYLESS Open Food Facts. via x402, $0.01. ALIAS PATH of /api/product-barcode.
Entity lookup - resolve a company, product, person or place to its canonical knowledge-graph entity, Wikipedia summary and Wikidata Q-id. KEYLESS. via x402, $0.01. ALIAS PATH of /api/entity-lookup.
Domain registration and DNS profile - RDAP registration dates, registrar, status codes and nameservers joined with live A, AAAA, MX, NS and TXT records and the DNSSEC state. KEYLESS, no account. ALIAS PATH of /api/domain...