All services

145–168 of 21,394

api.loyalspark.online

api.loyalspark.online

68
score

Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes. Customers earn real value with every purchase. AI agents automate the rest.

USDC Base

domain.hugen.tokyo

domain.hugen.tokyo

68
score

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

USDC BaseSolana

defi.hugen.tokyo

defi.hugen.tokyo

68
score

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

USDC BaseSolana

vibesprings.net

vibesprings.net

68
score

Real-time BTC/USD price feed oracle. Retrieves live spot rate, 24h high/low, and volume directly from Coinbase Exchange.

USDC Base

vibesprings.net

vibesprings.net

68
score

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.

USDC Base

vibesprings.net

vibesprings.net

68
score

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.

USDC Base

vibesprings.net

vibesprings.net

68
score

Demo: weather-driven delay-risk score for 5 fixed US locations. Same schema as the full /api/delay-risk endpoint. Try before you buy.

USDC Base

api.vindexapi.dev

api.vindexapi.dev

68
score

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.

USDC BaseSolana

api.loyalspark.online

api.loyalspark.online

68
score

Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes. Customers earn real value with every purchase. AI agents automate the rest.

USDC Base

kronossignals.com

kronossignals.com

68
score

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.

USDC Base

email-auth.use.x402atlas.com

email-auth.use.x402atlas.com

68
score

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.

USDC ArbitrumBasePolygonSolana

x402.twit.sh/users/by/id

x402.twit.sh

68
score

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.

BTCUSDC BaseLightning

api.onesource.io

api.onesource.io

68
score

Detect upgradeable proxy patterns (EIP-1967, UUPS, Transparent) via eth_getStorageAt - returns the implementation address behind a proxy

USDC Base

api.onesource.io

api.onesource.io

68
score

Contract introspection via eth_call - name, symbol, decimals, and ERC20/721/1155 interface support

USDC Base

dripstack.xyz

dripstack.xyz

68
score

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.

USDC BaseSolana

api.nansen.ai

api.nansen.ai

68
score

USD Coin

USDC BaseBNB ChainSolanaX Layer

api.nansen.ai

api.nansen.ai

68
score

Returns leaderboard rankings and statistics for perpetual futures traders.

USDC BaseBNB ChainSolanaX Layer

api.nansen.ai

api.nansen.ai

68
score

USD Coin

USDC BaseBNB ChainSolanaX Layer

api.nansen.ai

api.nansen.ai

68
score

USD Coin

USDC BaseBNB ChainSolanaX Layer

crypto.apitoll.cloud

crypto.apitoll.cloud

68
score

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.

USDC BaseSolana

x402endpoint-utiwoa54hq-uc.a.run.app

x402endpoint-utiwoa54hq-uc.a.run.app

68
score

Get a prepaid card for use inside the United States

USDC BaseSolana

api.tickersfeed.net

api.tickersfeed.net

68
score

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.

USDC Base

api.tickersfeed.net

api.tickersfeed.net

68
score

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.

USDC Base

api.tickersfeed.net

api.tickersfeed.net

68
score

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.

USDC Base