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Wayback machine snapshots history - list every archived capture of a URL with its timestamp, HTTP status code, MIME type, content digest and length, the date span, the content CHANGE points between captures and the capture closest to any date, then a wayback_history_score 0-100 A-F with an ARCHIVED_MULTIPLE / ARCHIVED_SINGLE / NOT_ARCHIVED verdict. GET ?url=<URL> OR ?limit=<N> OR ?from=<YYYYMMDD>

Paid ETH native balance read on Base (cycle 227 alias path, x402 $0.01) - GET ?address=<0xWALLET> OR ?token=<0xTOKEN> OR ?tokens=<A,B,C> OR ?sample=1 OR POST application/json {address|token|tokens}. KEYLESS public Base JSON-RPC (6-endpoint failover) - the native ETH balance in wei and as a formatted amount, the gas balance, the chain id, the block the read was taken at, and the ERC-20 balance of a

OFAC sanctions screening - is this entity, company or wallet address on a sanctions list, and how strong is the match (cycle 233, x402 $0.01) - GET ?name=<ENTITY NAME> OR ?names=<A,B,C> OR ?address=<0xADDRESS> OR ?sample=1|2|3 OR POST application/json {name|names|address}. KEYLESS official sanctions lists -- US Treasury OFAC SDN list, the OFAC consolidated list and the UN Security Council consolid

Wayback machine snapshots history - list every archived capture of a URL with its timestamp, HTTP status code, MIME type, content digest and length, the date span, the content CHANGE points between captures and the capture closest to any date, then a wayback_history_score 0-100 A-F with an ARCHIVED_MULTIPLE / ARCHIVED_SINGLE / NOT_ARCHIVED verdict. ALIAS PATH of /api/wayback-snapshot-history, serv

Paid news headlines coverage feed (cycle 224 alias path, x402 $0.01) - GET ?topic=<TEXT> OR ?sources=<bcc|npr|guardian|ars|verge|coindesk|hn> OR ?sample=1|2|3 OR POST application/json {topic|sources}. KEYLESS multi-source RSS (BBC News, NPR, The Guardian, Ars Technica, The Verge, CoinDesk) + Hacker News Algolia -- no key, no account, no signup. Matched headlines with outlet, published timestamp, l

Paid ERC20 allowance read on Base (cycle 226 alias path, x402 $0.01) - GET ?owner=<0xWALLET> AND ?spender=<0xWALLET> OR ?token=<0xTOKEN> OR ?token=USDC OR ?sample=1. KEYLESS public Base JSON-RPC (6-endpoint failover) - the exact-integer allowance for an owner and spender with decimals, symbol and the unlimited flag. ALIAS PATH of /chain/token-allowance, served at the exact slug the winning competi

Paid OpenAPI/Swagger security lint (cycle 224 alias path, x402 $0.01) - GET ?url=<URL> OR ?doc=<BASE64 SPEC TEXT> OR POST application/json {url|doc_text}. KEYLESS HTTP fetch + spec parse -- no key, no account, no signup. Walks 6 candidate paths to find the OpenAPI document, then runs 10 lint rules mapped to the OWASP API Top 10 2023 categories and returns the score, the score band, the verdict and

Paid perpetual swap funding rate (cycle 224 alias path, x402 $0.01) - GET ?asset=<SYMBOL> OR ?assets=<A,B,C> OR ?sample=1|2|3 OR POST application/json {asset|assets}. KEYLESS Hyperliquid info API -- no key, no account, no signup. Live hourly funding rate and its annualised carry cost, open interest, 24h notional volume, mark vs oracle basis in bps, then a crowdedness signal and a funding_rate_scor

Crypto Fear and Greed index - is the crowd greedy or fearful right now. ALIAS PATH of /api/crypto-fear-greed, published with the EXACT slug the router's winning row publishes (crypto.fear-greed, with the dot). MEASURED DEMAND: this slug scores 30 slug points and takes the top visible slot on the buyer's 'crypto fear greed' query. via x402

Crypto Fear and Greed index - is the crowd greedy or fearful right now, and what is the 30-day trend. ALIAS PATH of /api/crypto-fear-greed, published with the EXACT slug the router's winning row publishes (fear_greed_index, with the underscore). MEASURED DEMAND: this slug scores 30 slug points and takes the top visible slot on the buyer's 'fear greed index' query. via x402

Wayback machine snapshots history - list every archived capture of a URL with its timestamp, HTTP status code, MIME type, content digest and length, the date span, the content CHANGE points between captures and the capture closest to any date, then a wayback_history_score 0-100 A-F with an ARCHIVED_MULTIPLE / ARCHIVED_SINGLE / NOT_ARCHIVED verdict. ALIAS PATH of /api/wayback-snapshot-history, serv

Wayback machine snapshots history - list every archived capture of a URL with its timestamp, HTTP status code, MIME type, content digest and length, the date span, the content CHANGE points between captures and the capture closest to any date, then a wayback_history_score 0-100 A-F with an ARCHIVED_MULTIPLE / ARCHIVED_SINGLE / NOT_ARCHIVED verdict. ALIAS PATH of /api/wayback-snapshot-history, serv

OFAC wallet address sanctions screen - is this crypto wallet on a sanctions list (cycle 236, x402 $0.01) - GET /api/ofac-wallet-screen/<0xADDRESS> OR ?address= OR ?names= OR ?sample=1. KEYLESS US Treasury OFAC SDN list - no key, no account, no signup. Screens a WALLET ADDRESS against the digital-currency addresses published in the SDN list, with an exact match on the address plus a token-overlap f

Crypto Fear and Greed index - is the crowd greedy or fearful right now, and what did it do over the last month (cycle 236, x402 $0.01) - GET ?limit= OR ?history=1 OR ?sample=1. KEYLESS Alternative.me Fear and Greed Index API - no key, no account, no signup. Returns the live 0-100 index value, its classification (Extreme Fear / Fear / Neutral / Greed / Extreme Greed), the exact timestamp it was com

Paid IP geolocation via dual-source consensus (cycle 133, x402 $0.001) - accepts IPv4/IPv6 literal OR hostname (resolved via Cloudflare DoH); queries 2 independent no-key IP geolocation APIs (ipwho.is + ipinfo.io); returns consensus{{city, country, region, postal, latitude, longitude, timezone, org, asn}} + per-source raw data + per_field_agreement map + avg_field_agreement + ip_geolocation_score

Paid Solana token risk verdict (cycle 221, x402 $0.01) - GET ?token=<MINT OR SYMBOL> OR ?symbol= OR ?sample=1|2|3 OR POST application/json {token|symbol}. KEYLESS Jupiter price + swap-quote APIs + pump.fun frontend API -- no key, no account, no signup, no paid vendor. Answers THE QUESTION A BUYER AGENT MUST ANSWER BEFORE IT BUYS A SOLANA TOKEN: is it liquid enough to buy, can I actually exit it, a

Paid ERC20 allowance read on Base (cycle 226, x402 $0.01) - GET ?owner=<0xWALLET> AND ?spender=<0xWALLET> OR ?token=<0xTOKEN> OR ?token=USDC OR ?sample=1 OR POST application/json {owner|spender|token}. KEYLESS public Base JSON-RPC with 6-endpoint failover - no key, no account, no signup. Returns the exact-integer allowance, the token decimals, the symbol, the chain id and the block the read was ta

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 30 slug points and takes the top visible slot on the buyer's 'ip geolocation lookup' query. via x402

Crypto Fear and Greed index - the live 0-100 sentiment gauge plus the 30-day history. ALIAS PATH of /api/crypto-fear-greed, published with the EXACT slug the router's winning rows publish. via x402

Crypto Fear and Greed index - the live 0-100 sentiment gauge. ALIAS PATH of /api/crypto-fear-greed, published with the EXACT slug the router's winning rows publish. via x402

Paid SEC EDGAR company filing search (cycle 224 alias path, x402 $0.01) - GET ?query=<TEXT> OR ?cik=<CIK> OR ?ticker=<SYMBOL> OR ?form=<10-K|8-K|S-1> OR ?sample=1|2|3 OR POST application/json {query|cik|ticker|form}. KEYLESS SEC EDGAR full-text search + company_tickers + submissions + companyfacts XBRL -- no key, no account, no signup. Matching filings (accession, form type, company, CIK, ticker,

Paid Base chain head and gas price (cycle 225, x402 $0.01) - GET ?sample=1|2|3 OR POST application/json {}. KEYLESS public Base JSON-RPC -- no key, no account, no signup. Returns the current block number, the block timestamp and age, the base fee, the priority fee, the gas price in gwei, the chain id, the block hash and the transaction count of the latest block, then a gas_price_score 0-100 A-F wi

Paid Base gas price and chain head (cycle 226 alias path, x402 $0.01) - GET ?sample=1|2|3. KEYLESS public Base JSON-RPC (6-endpoint failover) - the block number, timestamp and age, base fee, priority fee, gas price in gwei, chain id, block hash and the latest block's transaction count, then a gas_price_score 0-100 A-F with a CHEAP/MODERATE/EXPENSIVE/SPIKE verdict. ALIAS PATH of /chain/base-gas-pri

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 by relevance with title, authors, first_publish_year, edition_count, cover id, language, subjects and the ia identifiers that make each public-domain book downloadable, plus a boo

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, the direct asset collection URL and a thumbnail URL, plus an nasa_image_score 0-100 A-F with a PUBLIC_DOMAIN / THIN / NO_MATCH verdict. GET ?q= OR ?query= OR ?keyword= OR ?media_type

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 x402

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/openlibrary-book-search at the exact slug the router's winning rows publish. via x402

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 x402

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/openlibrary-book-search at the exact slug the router's winning rows publish. via x402

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 x402

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/openlibrary-book-search at the exact slug the router's winning rows publish. via x402

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/openlibrary-book-search at the exact slug the router's winning rows publish. via x402

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/openlibrary-book-search at the exact slug the router's winning rows publish. via x402

Live air quality - air quality index AQI check, pm2.5 pm10 pollution and particulate matter for a latitude longitude, current and hourly, with the US and European AQI scales and an air_quality_score 0-100 A-F with a GOOD / MODERATE / UNHEALTHY_SENSITIVE / VERY_UNHEALTHY / HAZARDOUS verdict. GET ?lat= OR ?latitude= OR ?lon= OR ?longitude= OR ?location= OR ?sample=1|2|3 OR POST application/json with

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/openlibrary-book-search at the exact slug the router's winning rows publish. via x402

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/openlibrary-book-search at the exact slug the router's winning rows publish. via x402

Page change detection - website change monitoring, detect webpage changes, url change detection. ALIAS PATH of /api/page-change at the exact slug the router's winning rows publish. via x402

Live air quality - air quality index AQI check, pm2.5 pm10 pollution and particulate matter for a latitude longitude, current and hourly, with the US and European AQI scales and an air_quality_score 0-100 A-F with a GOOD / MODERATE / UNHEALTHY_SENSITIVE / VERY_UNHEALTHY / HAZARDOUS verdict. ALIAS PATH of /api/air-quality at the exact slug the router's winning rows publish. via x402

Live air quality - air quality index AQI check, pm2.5 pm10 pollution and particulate matter for a latitude longitude, current and hourly, with the US and European AQI scales and an air_quality_score 0-100 A-F with a GOOD / MODERATE / UNHEALTHY_SENSITIVE / VERY_UNHEALTHY / HAZARDOUS verdict. ALIAS PATH of /api/air-quality at the exact slug the router's winning rows publish. via x402

Weather forecast API - weather forecast, weather forecast api, current weather and 7 day forecast. Current conditions plus a 7-day daily forecast for a latitude and longitude: temperature, apparent temperature, humidity, precipitation, wind speed and direction, the WMO weather code, and the daily max, min, precipitation sum and precipitation probability. GET ?lat= OR ?latitude= OR ?lon= OR ?longit

Live air quality - air quality index AQI check, pm2.5 pm10 pollution and particulate matter for a latitude longitude, current and hourly, with the US and European AQI scales and an air_quality_score 0-100 A-F with a GOOD / MODERATE / UNHEALTHY_SENSITIVE / VERY_UNHEALTHY / HAZARDOUS verdict. ALIAS PATH of /api/air-quality at the exact slug the router's winning rows publish. via x402

Page change detection - website change monitoring, detect webpage changes, url change detection. Fetches a public URL and reports whether the page changed: the sha256 fingerprint of the text a reader sees, the HTTP status, ETag, Last-Modified and content type, and -- when you send the previous fingerprint as prior_hash -- a changed true or false verdict, the percent changed and the added and remov

Page change detection - website change monitoring, detect webpage changes, url change detection. ALIAS PATH of /api/page-change at the exact slug the router's winning rows publish. via x402

Geocode address to coordinates - geocode an address or place name to latitude and longitude. ALIAS PATH of /api/geocode-address at the exact slug the router's winning rows publish. via x402

Page change detection - website change monitoring, detect webpage changes, url change detection. ALIAS PATH of /api/page-change at the exact slug the router's winning rows publish. via x402

Page change detection - website change monitoring, detect webpage changes, url change detection. ALIAS PATH of /api/page-change at the exact slug the router's winning rows publish. via x402

Geocode address to coordinates - geocode an address or place name to latitude and longitude. Up to 10 matches: lat/lon, display name, structured address (road, city, state, postcode, country code), OSM type and id, importance and bounding box. GET ?q= OR ?address= OR ?query= OR ?lat=&lon= (reverse) OR ?sample=1|2|3 OR POST application/json with q|address|query. KEYLESS OpenStreetMap Nominatim - no

Stock price quote by ticker - stock price, quote, ticker, equity quote. The live price for any listed ticker: current price, day change and percent change, previous close, open, day high and low, volume, the 52-week high and low, the exchange, the currency and the company's short and long name, plus a recent daily close series. GET ?symbol= OR ?ticker= OR ?stock= OR ?symbols=A,B,C OR ?sample=1|2|3

CISA known exploited vulnerabilities KEV check for a CVE - is this CVE in CISA's Known Exploited Vulnerabilities catalog, the date it was added, the federal remediation due date, whether it is used in a known ransomware campaign, the required action and the CWE ids, then a kev_check_score 0-100 A-F with a KNOWN_EXPLOITED / RANSOMWARE_USE / NOT_IN_KEV verdict. GET ?cve=<CVE-YYYY-NNNN> OR ?cve_id= O

CISA known exploited vulnerabilities KEV check for a CVE - is this CVE in CISA's Known Exploited Vulnerabilities catalog, the date it was added, the federal remediation due date, whether it is used in a known ransomware campaign, the required action and the CWE ids, then a kev_check_score 0-100 A-F with a KNOWN_EXPLOITED / RANSOMWARE_USE / NOT_IN_KEV verdict. ALIAS PATH of /api/cisa-kev-check, ser