kronossignals.com
Implied volatility surface for BTC and ETH from Deribit options (public API, no auth). Returns ATM IV (annualized %), IV rank and IV percentile from Kronos iv_history (daily cron), term structure (weekly/1m/3m ATM IV + contango/backwardation/flat shape label), 25-delta risk reversal (BS-approximated strikes), 10-delta wing IVs, max-pain strike across top-5 expiries, and a vol-regime label. Falls back to OKX if Deribit is unreachable. $0.03 USDC via x402.
$0.03 USDC
api.grip.fyi
Create deterministic persistent machine representations for memory, indexing, retrieval, clustering, reuse, cross-system meaning, and downstream coherence measurement.
$0.001000 USDC
api.solgiery.com
Uniformly select one original index and item from the input array. Equal values at different positions have separate chances. Uses the server OS CSPRNG. Returns consumed bytes for reproducible calculation, not proof of their origin. Price: 0.007 USDC per request, including the bounded batch.
$0.007000 USDC
pro-api.coingecko.com
Query onchain DEX token price & market data based on the provided token contract addresses on a network.
$0.01 USDC
aura-revenue.helionixlabs.com
Aura machine-readable x402 Bazaar market snapshot: Base-USDC price distribution, category demand, freshness, newest listings
$0.01 USDC
open-pay.jp
JPYC Service Monitor: weekly change feed for Japan-related JPYC and Web3 services. Each event is dated, typed (added / updated / removed / verified) and tied to an official source URL. Call with changedSince=YYYY-MM-DD set to your last run date to fetch only what changed; an empty changes list explicitly means no change, so a scheduled agent can report that without guessing. Without changedSince you get the full monitor snapshot.
$0.01 USDC
kronossignals.com
Structured market digest for any of the 16 supported crypto assets. Deterministic composite from live signals: derivatives (funding, basis, OI), market regime, 30d realized volatility, fear-greed index, and ML forecast probability (BTC/ETH/SOL only). Single-call 'start here' bundle for autonomous agents. $0.02 USDC via x402. Live scored track record at /api/stats — measured on served predictions, not a backtest.
$0.02 USDC
audit.152-53-82-29.sslip.io
Check an x402 niche before you build or buy. Send {"query":"pdf to markdown"}. Returns matching bazaar listings and hosts, how many have outside paying buyers in the last 30 days, max and median unique payers, price quartiles overall and among listings with demand, top listings and hosts by payers, and a verdict: empty, no-demand, thin-supply, contested, or incumbent-dominated. From Coinbase discovery metrics, refreshed every 6 hours.
$0.01 USDC
api.nativebtc.org
Unified Bitcoin transaction analysis: fee verdict, mempool state, RBF bump plan, and Core v31 template check.
$0.01 USDC
app.distro.media
Premium news articles, books, content and blog posts from independent journalists, news teams, publishers and companies on Distro Media. Pay per article in USDC via x402. Article: How we built JournoBot, the world's first decentralized newsroom agent
$0.05 USDC
talentpulse.theaslangroupllc.com
Talent-market supply and demand intelligence by role and region — talent availability, hiring difficulty, top talent hubs and competitive hiring landscape, backed by World Bank and BLS labor data plus real-time market signals. 60+ countries for recruiting, sourcing and expansion agents. 10 languages.
$0.15 USDC
kronossignals.com
Structured market digest for any of the 16 supported crypto assets. Deterministic composite from live signals: derivatives (funding, basis, OI), market regime, 30d realized volatility, fear-greed index, and ML forecast probability (BTC/ETH/SOL only). Single-call 'start here' bundle for autonomous agents. $0.02 USDC via x402. Live scored track record at /api/stats — measured on served predictions, not a backtest.
$0.02 USDC
kronossignals.com
Forward liquidation cluster map + recent prints for all 17 crypto assets. Part A: estimated liq price levels for 5x/10x/25x/50x leverage bands, modeled from open interest and mark price — no new upstream source. Part B: real liquidation prints from OKX public API (no auth). Returns cluster map, nearest_long/short clusters, squeeze_bias, and honest disclaimers. Supports BTC/ETH/SOL/BNB/XRP/DOGE/ADA/AVAX/LINK/DOT/LTC/TRX/BCH/ATOM/NEAR/APT/HYPE-USD. Pay-per-call via x402.
$0.02 USDC
convert.guru
Convert files asynchronously for AI agents. Supports PDF to DOCX, JPG to PNG, HEIC to JPG, document conversion, image conversion, audio conversion, and video conversion. Common formats include PDF, DOCX, XLSX, CSV, JPG, JPEG, PNG, WEBP, HEIC, TXT, HTML, MP3, WAV, MP4, AVI, MPEG, and WEBM.
$0.002000 USDC
kronossignals.com
Options-implied probability that BTC or ETH is above each given price at a target time, from the Deribit option book (skew-inclusive call-spread digitals): the options market's fair value for Kalshi/Polymarket crypto threshold contracts, not a forecast. Query: strikes=85000,90000 (up to 25), at=ISO time or Unix. $0.02 USDC via x402.
$0.02 USDC
gridpulse.theaslangroupllc.com
Home carbon footprint calculator — household electricity emissions via EPA eGRID factors by state, with a reduction roadmap. For homeowner and climate agents.
$0.05 USDC