Every agent-payable API.

Check whether a wallet holds or has claimed a specific airdrop/token contract balance on EVM chains, with symbol and formatted amount. airdrop check, claim eligibility, token balance check, airdrop claimed, wallet holdings

Historical event research for research and historian agents. Returns how newspapers covered wars, disasters, social movements, and world events as primary sources.

Archive search for genealogy and research agents. Full-text search across global digitized newspaper archives.

Cid Bafybeibpxcpq74uhen4tkeu4jw4bwimqsnpvjidogea4yuvelvhlfbkmyu — an agent-callable cid bafybeibpxcpq74uhen4tkeu4jw4bwimqsnpvjidogea4yuvelvhlfbkmyu service, payable over x402 (USDC on Base). Provided via x402hackathon.mypinata.cloud. Priced around 1 USD per call.

Top 100 recent AI papers ranked by the share of their total citations earned in the most recent calendar year. Papers published in the last 2 years with 3+ citations. Surfaces papers that are still gaining traction now. OpenAlex CC0.

One permanent square on twentyone-million, $1 USDC on Base (one per wallet). Want it? Retry this request with a signed payment and the square mints in the response. Pass ?handle= and ?message=. Live: 5 of 21,000 squares claimed, 20,995 open. A novelty collectible — not a token, not an investment.

Clarity Watch — an agent-callable clarity watch service, payable over x402 (USDC on Base). Provided via onchainpulse.theaslangroupllc.com. Priced around 0.1 USD per call.

Classify — an agent-callable classify service, payable over x402 (USDC on Base). Provided via Apify. Priced around 0.005 USD per call.

Dental cost intelligence for healthcare and consumer-health agents. Returns FairHealth benchmarks, discount-plan options, and CDT-code pricing for any dental procedure.

Care-site alternatives for healthcare and patient-advocate agents. Compares ASCs, imaging centers, FQHCs, and urgent care against the hospital for the same procedure, with the cost delta.

Medical bill negotiation guide for healthcare and patient-advocate agents. Returns negotiation scripts, the Medicare benchmark to anchor against, and charity-care options to cut a bill.

US medical-bill rights check, quiz-first (no documents): No Surprises Act protection (45 CFR 149 incl. the never-waivable §149.420(b) list), good-faith-estimate disputes ($400/120-day rules), nonprofit-hospital financial assistance + collection shields (26 CFR 1.501(r), 2026 FPL math), ACA appeal deadlines (180-day/4-month windows computed), Medicare MSN redetermination. Citations + deadline math, honest no's. No LLM.

Click — an agent-callable click service, payable over x402 (USDC on Base). Provided via Apify. Priced around 0.01 USD per call.

Should I pack a rain jacket for next week? 7-day hyperlocal forecast with a per-day outdoor score (1-10), best/worst day picks, a packing list, and Amazon + REI gear recommendations for travel and outdoor-planning agents.

Check one public AWS, Google Cloud, Azure, DigitalOcean, or Linode service/location status source and return a terse agent-ready verdict.

Which stocks to buy now — trading signals as a ranked buy list for agents. Returns today's top candidate names per book (S&P 500, Nasdaq-100, macro) across two lanes, risk-adjusted and swing, each with buy / entry / growth / hold scores, a leadership flag and an entry-window note — plus the regime mode telling you whether the list is actionable at all. Ranked judgment, not raw data. Refreshed ~5 min in market hours. Research, not advice.

Today's market leaders, ranked — which stocks are leading the tape right now? One read returns the top leadership names per book (S&P 500, Nasdaq-100, macro) ranked by opportunity score: names in confirmed uptrends carrying the market's strength, each with opportunity 0-100 + percentile, entry state, hold strength, growth score and 20-day dollar volume. Leadership rotation is the Coil engine's backbone signal. Refreshed ~5 min in market hours, timestamped. Research, not advice.

Every stock in one sector, scored — GET /api/board/sector?name=Energy (or ?etf=XLE) returns each member of that sector with the full Coil read: opportunity 0-100 + percentile, entry quality and state, hold strength, growth score, overnight gap-risk score, leadership flag and dollar volume, ranked by opportunity, plus the sector's own ETF row. All 20 sector groups across the S&P 500, Nasdaq-100 and macro book. ~5-min refresh. Research, not advice.

Sector rotation scores — which sectors are strong right now? One read returns every S&P 500 sector ETF (XLK, XLF, XLV, XLE, XLI and the rest) scored 0-100 with percentile, green/yellow/red light and entry state, plus which sectors each book's regime currently calls green. Spot leadership rotation top-down without scanning 500 single names. Refreshed ~5 min in market hours, timestamped. Research, not advice.

CoinGecko is a comprehensive cryptocurrency data aggregator that provides users with real-time information on over 17,000 crypto assets across more than 1,000 exchanges, enabling informed trading and investment decisions. It offers a variety of tools, including price tracking, portfolio management, and educational resources, making it an essential platform for both novice and experienced crypto enthusiasts. | Powered by Questflow

Coingecko provides real-time and historical price feeds, market data, trading volumes, market capitalization, metadata, and analytics for thousands of crypto assets, NFTs, and exchanges worldwide. | Powered by Questflow

Compare two texts and return cosine and Jaccard similarity scores with the top shared keywords, useful for duplicate and near-duplicate detection. text similarity, string similarity, compare documents, duplicate detection, content overlap

Composed wallet risk verdict. Fans out to balance, wallet_risk, wallet_persona, contract_audit, privacy_mixer_risk and returns a Haiku 4.5-authored summary + confidence + band. One verdict replaces a manual 5-call audit walk.

Compute All — an agent-callable compute all service, payable over x402 (USDC on Base). Provided via Apify. Priced around 0.05 USD per call.

Convert BNB to USD at live price. Pass ?amount=1 for value in US Dollar. 币安币兑换美元换算。BNBを米ドルに換算。Convertir BNB a dólar. 바이낸스코인를 달러로 환전. bnb to usd, BNB convert.

Convert EUR to USD at live rate. Pass ?amount=100 for value in US Dollar. 欧元兑换美元换算。ユーロを米ドルに換算。Convertir euro a dólar. 유로를 달러로 환전. eur to usd convert.

Convert GBP to EUR at live rate. Pass ?amount=100 for value in Euro. 英镑兑换欧元换算。ポンドをユーロに換算。Convertir libra a euro. 파운드를 유로로 환전. gbp to eur convert.

Convert GBP to USD at live rate. Pass ?amount=100 for value in US Dollar. 英镑兑换美元换算。ポンドを米ドルに換算。Convertir libra a dólar. 파운드를 달러로 환전. gbp to usd convert.

Count words, characters, sentences, paragraphs, and reading time

Country Eu — an agent-callable country eu service, payable over x402 (USDC on Base). Provided via Apify. Priced around 0.05 USD per call.

Country Us — an agent-callable country us service, payable over x402 (USDC on Base). Provided via Apify. Priced around 0.05 USD per call.

Crime Stats — an agent-callable crime stats service, payable over x402 (USDC on Base). Provided via web-production-18a32.up.railway.app. Priced around 0.001 USD per call.

Before your agent plans a route or advises on a vehicle in France: compute its Crit'Air class and current low-emission-zone (ZFE) restrictions from the official classification tables (arrêté du 21 juin 2016), from declared fuel and Euro norm or first registration date

Crypto trading signal (long/short) and market-regime signal in ONE call: LONG/SHORT/NEUTRAL with confidence, fusing the cross-exchange funding rate, crowding (long/short) bias, trend/chop market regime and BTC→altcoin lead-lag from Binance/Bybit/OKX/Hyperliquid — with declared data freshness. Should I go long or short on this coin? A fused directional trading signal where competitors sell the funding rate, regime and the four numbers separately. Derivatives trading signal for any altcoin.

Crypto 'Would You Rather' scenarios

Crypto ETF Sentinel — Crypto ETF fee comparison: current expense ratio for every trading US spot crypto ETF, sorted cheapest first — compare fees and find the lowest-cost Bitcoin, Ethereum and other crypto ETFs. Outlier-capped at 200bps to drop bad XBRL extractions.

Crypto ETF Sentinel — Single-call market snapshot for US spot crypto ETFs (Bitcoin, Ethereum, Solana, XRP and more). DB totals, filings broken down by cryptocurrency + form type, regulatory-stage counts (how many issuers are trading / launch_imminent / under_review / etc.), and an ``as_of`` ISO timestamp for stale-checking. Useful as a heartbeat for monitoring agents deciding whether to drill into the catalogue.

Crypto ETF Sentinel — SEC filing tracker for US spot crypto ETFs across Bitcoin, Ethereum, Solana, XRP and 30+ assets. Freshest filings surface within ~10 minutes of detection — last 50 newest-first by default, built for continuous, high-volume monitoring. Covers S-1, 424B, 8-A12B, CERT, EFFECT. Optional filters: ``currency``, ``filing_type``, ``date_after``.

Crypto ETF Sentinel — Per-crypto regulatory wave state for US spot crypto ETFs (Bitcoin, Ethereum, Solana, XRP and more). Answers 'is asset X in an active SEC approval cycle right now?'. Returns ``in_wave``, ``first_anchor_date``, ``first_anchor_ticker``, plus counts of approved vs pending cohort members.

Crypto ETF Sentinel — Curated directory of every active US spot crypto ETF issuer, including staking ETFs (100+ entries across 30+ cryptocurrencies). Each entry carries regulatory-stage classification (registration_filed / under_review / launch_imminent / trading / approved / withdrawn), ticker, exchange, owner organisation, and SEC CIK. Pair with paid per-issuer routes (``?cik=`` query param) to drill into comment letters, XBRL financials, or POS AM profiles.

Validate a composition body without saving it (dry-run)

Current air quality at a location by latitude and longitude or city: US AQI, PM2.5, PM10, ozone, nitrogen dioxide, carbon monoxide. Live environmental data. air quality, AQI, PM2.5 PM10, pollution, ozone by city

Current crypto Fear and Greed Index value (0-100) with classification and optional history, a real-time market sentiment signal not available in any LLM training data. fear greed index, crypto sentiment, market fear, greed index, sentiment indicator

CVE lookup and severity brief for any CVE ID — CVSS score, exploit / CISA KEV / active-exploitation / PoC status, affected products, patch urgency, and remediation steps. Authoritative NVD + CISA data plus threat-intel context, for security and vuln-management agents.

Kronos by ForgeMesh auditable crypto market-intelligence journal combining directional bias, anomaly review, calibrated confidence, and verification in one record with a decision_id. Pair with Kronos Audit to measure the later outcome. Market intelligence only.

Total value locked for any DeFi protocol with per-chain breakdown via DefiLlama, by protocol slug such as aave-v3 or uniswap. defi tvl, protocol tvl, total value locked, defillama tvl, protocol metrics Accepts payment on Base or Solana — either network works.

Detect the language of input text from Unicode script and stopword analysis with a confidence score, covers Chinese, Japanese, Korean, Cyrillic, Arabic, Hebrew, Greek, Thai and major Latin languages. language detection, detect language, language identifier, what language is this text

Generate cryptographically secure verifiable randomness using Drand and local system entropy

Compile reputation metrics and latency percentiles from historical probe checks for a target endpoint

ERC20 token USD price with 24 hour percent change and the source exchange, by contract address and chain, from an indexed DEX-aware price source behind an API key. Live token price with change. token price, erc20 usd price, 24h change, dex price, token quote