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145–168 of 21,394api.loyalspark.online
api.loyalspark.online
Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes. Customers earn real value with every purchase. AI agents automate the rest.
domain.hugen.tokyo
domain.hugen.tokyo
DNS lookup across 3 independent resolvers in parallel — A, AAAA, MX, TXT, NS, CNAME, SOA records. SPF mechanism parsing, DMARC policy extraction, resolver inconsistency detection (DNS hijacking/BGP leak signal). One call replaces 3 separate resolver queries + result comparison. Accepts USDC payments on Base and Solana
defi.hugen.tokyo
defi.hugen.tokyo
Stablecoin distribution by blockchain — total circulating USD-pegged value on every supported chain. Track stablecoin flows and chain-level liquidity. Accepts USDC payments on Base and Solana
vibesprings.net
vibesprings.net
Real-time BTC/USD price feed oracle. Retrieves live spot rate, 24h high/low, and volume directly from Coinbase Exchange.
vibesprings.net
vibesprings.net
Fiat currency converter and international pricing calculator. Perform instant conversions for any base amount between 30+ fiat currencies with official real-time ECB rates. Returns the exact converted sum, forward exchange rate, and the inverse exchange rate for clear cross-currency financial auditing.
vibesprings.net
vibesprings.net
Real-time and forecast air quality index (AQI) and particulate matter database. Retrieves PM2.5, PM10, ozone (O3), nitrogen dioxide (NO2), sulfur dioxide (SO2), carbon monoxide (CO), US AQI scale labels, and European AQI parameters for any location globally. Crucial for smart city analytics, health monitoring, outdoor event planning, and environmental geointelligence.
vibesprings.net
vibesprings.net
Demo: weather-driven delay-risk score for 5 fixed US locations. Same schema as the full /api/delay-risk endpoint. Try before you buy.
api.vindexapi.dev
api.vindexapi.dev
Normalized NHTSA vPIC VIN decode (?vin=) — make/model/year/engine/body/… with fetch provenance, plus ORIGINAL factory new-vehicle warranty terms (basic/powertrain/corrosion/roadside/EV battery) keyed off make + model-year.
api.loyalspark.online
api.loyalspark.online
Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes. Customers earn real value with every purchase. AI agents automate the rest.
kronossignals.com
kronossignals.com
Stablecoin market cap, top-10 breakdown by dominance, and 7d/30d supply flows (mint/burn) via DeFiLlama. Shows total stablecoin market cap, per-coin dominance %, and net capital entering/leaving crypto. 15-minute caching. Never fabricated — returns available:false when sources are unreachable. $0.01 USDC via x402.
email-auth.use.x402atlas.com
email-auth.use.x402atlas.com
Email authentication posture check: parses SPF, DMARC and DKIM plus MX for any domain and grades deliverability/anti-spoofing gaps (SPF +all, SPF >10 lookups, DMARC p=none, missing DKIM). Clean JSON for deliverability and security-ops automation.
x402.twit.sh/users/by/id
x402.twit.sh
Look up a single Twitter/X user profile by their numeric user ID. Returns full profile data including id, name, username, bio, follower count, following count, tweet count, and verification status. Query param: id (string, required) - numeric Twitter user ID, e.g. GET /users/by/id?id=44196397. Returns X v2 API-compatible JSON.
api.onesource.io
api.onesource.io
Detect upgradeable proxy patterns (EIP-1967, UUPS, Transparent) via eth_getStorageAt - returns the implementation address behind a proxy
api.onesource.io
api.onesource.io
Contract introspection via eth_call - name, symbol, decimals, and ERC20/721/1155 interface support
dripstack.xyz
dripstack.xyz
Paid JSON for stock-picker calls from financial newsletters and investing articles. Query params: optional `date=YYYY-MM-DD` for one UTC effective day, optional `limit`. Default (omit `date`) returns the latest UTC effective day with picks. Rows missing publication timestamps may use extractedAt for the effective day. Returns 404 when no picks exist for the day. USDC `exact` x402 on Base or Solana; amount is based on distinct attributed source posts returned.
api.nansen.ai
api.nansen.ai
USD Coin
api.nansen.ai
api.nansen.ai
Returns leaderboard rankings and statistics for perpetual futures traders.
api.nansen.ai
api.nansen.ai
USD Coin
api.nansen.ai
api.nansen.ai
USD Coin
crypto.apitoll.cloud
crypto.apitoll.cloud
Decentralized exchange (DEX) trading volume ranked by protocol: 24-hour and 7-day volume in USD with 1d/7d change, plus the chains each DEX runs on. Pass ?chain=base to scope to one chain. See where on-chain trading is happening across Uniswap, Curve, Raydium, PancakeSwap and more. Sourced from DefiLlama.
x402endpoint-utiwoa54hq-uc.a.run.app
x402endpoint-utiwoa54hq-uc.a.run.app
Get a prepaid card for use inside the United States
api.tickersfeed.net
api.tickersfeed.net
Upcoming US company earnings calendar — which companies report in a date window, with estimated EPS and revenue, as JSON. Default is the next 7 days; filter with ?from=YYYY-MM-DD&to=YYYY-MM-DD (window up to 30 days) or ?symbol=AAPL. Use for: earnings season monitoring, upcoming earnings this week, portfolio earnings alerts, event-driven trading calendar, pre-earnings positioning. $0.005 USDC per call.
api.tickersfeed.net
api.tickersfeed.net
US macroeconomic snapshot in one call — current inflation (CPI YoY), core PCE, Federal Reserve interest rate (fed funds), 10Y/2Y Treasury yields, yield curve, unemployment, and GDP growth as JSON. Powered by FRED (Federal Reserve Economic Data). Use for: macro dashboard, economic context for trading decisions, rate environment check, market briefings. $0.005 USDC per call.
api.tickersfeed.net
api.tickersfeed.net
Full US Treasury yield curve in one call — every tenor from 1-month to 30-year (1M, 3M, 6M, 1Y, 2Y, 3Y, 5Y, 7Y, 10Y, 20Y, 30Y) with current rates, key spreads, and recession inversion flags (10Y-2Y and 10Y-3M) as JSON. Powered by FRED (Federal Reserve). Use for: yield curve analysis, recession signal / curve inversion check, interest rate term structure, bond market monitoring, macro trading. $0.005 USDC per call.