Every agent-payable API.

End-to-end email-auth report for a domain: SPF + DMARC + DKIM (probes common selectors automatically) + MX records + score 0–100. The one call to make when 'why is our mail going to spam?' lands in your inbox.

Email deliverability verification

Email enrichment and validation

Validate an email address: syntax check plus live MX record lookup on the domain (deliverability signal, not a guarantee).

Convert between Unix epoch timestamps and ISO 8601 date strings in both directions. Provide either an epoch (seconds or milliseconds) or an ISO date string. Returns both representations plus UTC and date components.

Eth Usd — an agent-callable eth usd service, payable over x402 (USDC on Base). Provided via Apify. Priced around 0.05 USD per call.

Eu Hicp Core — an agent-callable eu hicp core service, payable over x402 (USDC on Base). Provided via Apify. Priced around 1 USD per call.

Eu Hicp Services — an agent-callable eu hicp services service, payable over x402 (USDC on Base). Provided via Apify. Priced around 1 USD per call.

Eu Unrate — an agent-callable eu unrate service, payable over x402 (USDC on Base). Provided via Apify. Priced around 1 USD per call.

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

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

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

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

All Bittensor substrate events for a single finalized block (event_idx, phase, module_id, event_id, attributes). AI agent API for detailed forensic analysis of specific blocks. Informational research data — not investment advice.

Exact structured diff. mode=text -> unified diff + line counts; mode=json -> an RFC 6902 JSON Patch (RFC 6901 pointers) that round-trips a->b; mode=words -> inline word-level opcodes. For large inputs use POST. Every answer signed. Free sample, no payment required: GET /play/diff

Reference list of US equity exchanges and market centers with names, MICs, operating MICs, and SIP participant IDs. From x402stock, a pay-per-call market & economic data API for AI agents. No API key or account; pay in USDC via x402.

Paid hosted deterministic explanation for EVM/RPC/wallet/UserOperation/x402 errors. Send raw pasted error JSON, text, or revert bytes.

Expressive text-to-speech in any of 20 voices: 10 standard (M1-M5, F1-F5) plus 10 personas (Storyteller, Narrator, Announcer, Urgent, Velvet, Sage, Spark, Anchor, Echo, Assistant), with speed and quality control, up to 500 characters, WAV output. Use it to: voice a game character, narrate a branded assistant reply, add a dramatic announcer line, give a chatbot personality-driven audio. USDC on Base.

Pull a subset of pages into a new PDF (split). Body: {"url":"https://…/file.pdf","pages":"1-3,5"}. Returns the new PDF as base64.

Pull emails, URLs, IPv4s, @mentions, and #hashtags out of free text. Returns deduped lists.

FDA recalls and adverse events. Drug, device, and food recall and adverse-event records from openFDA with classification, recalling firm, and reason.

Full-text search across FRED's ~800,000 economic time series. Returns series IDs (use with /api/fred-series), titles, frequency, units, and a popularity score. ?q=unemployment+rate&limit=10 This product uses the FRED(R) API but is not endorsed or certified by the Federal Reserve Bank of St. Louis.

Upcoming and very-recent US economic data release dates - CPI, employment, GDP, FOMC minutes, Treasury auctions, etc. Useful for scheduling agents around event-driven moves. ?days=14 (default 14, range 1-90). This product uses the FRED(R) API but is not endorsed or certified by the Federal Reserve Bank of St. Louis.

Metadata for a FRED series: title, frequency, units, seasonal adjustment, observation date range, and popularity. Use before /api/fred-series to confirm the series fits your needs. ?seriesId=UNRATE This product uses the FRED(R) API but is not endorsed or certified by the Federal Reserve Bank of St. Louis.

Daily FX rates between two currencies across a date window using European Central Bank reference rates (via Frankfurter). ?from=USD&to=EUR&startDate=2024-01-02&endDate=2024-01-31

Facebook Ad Library search by keyword — every live and recent ad matching a search term across all advertisers on Facebook, Instagram, Messenger and Threads. Returns the full ad creative (headline, body copy, CTA button + destination link, image and video URLs), the advertiser, run dates and days-running, and platform mix. Commercial and political ads, no Meta API or login. Competitor ad intelligence, ad spy, and creative research for AI agents.

Reverse-lookup an Ethereum address to its Farcaster account (via verified address). Returns FID, username, display name, bio, follower/following counts, and Warpcast URL, or found=false if the address has not verified on Farcaster. Use to label wallet activity with the owner's Farcaster identity when ENS is missing.

Lookup a Farcaster profile by username or FID. Returns FID, username, display name, bio, profile picture URL, follower/following counts, and the canonical Warpcast URL. Use to label cast authors, validate a Farcaster handle, or fetch a profile for display.

Current crypto Fear & Greed Index with 1-day change (alternative.me).

Fetch Google Play Store top free games.

Fetch Google Play Store top grossing apps.

Fetch Google Play Store top grossing games.

Fetch current Amazon deals.

Parse SEC filings (10-Q, 10-K, 8-K, Form 4) and earnings transcripts into structured JSON. Supports EDGAR by ticker or direct URL.

Financial math. op: "compound" (future value of principal at a rate) or "loan" (monthly payment + total for a loan).

Evidence Financial Records — an agent-callable evidence financial records service, payable over x402 (USDC on Base). Provided via epsteinisland.club. Priced around 0.2 USD per call.

Multi-period financial statements for a listed company. Returns up to 8 quarters of revenue, gross profit, operating profit, net income, total assets, liabilities, and equity. Use when an agent needs historical financial trends.

Evidence Flight Logs — an agent-callable evidence flight logs service, payable over x402 (USDC on Base). Provided via epsteinisland.club. Priced around 0.2 USD per call.

The full FOMC meeting schedule (2025–2027) with the last and next meeting and days-until. Each entry carries the two-day meeting's start and decision date, year, and past/upcoming status. No ticker needed — the rate-decision calendar every macro-aware agent plans around. Source: U.S. Federal Reserve. From x402stock, a market & economic data API (x402, USDC).

FOMO guard: how far has price already run from the recent swing low — in % and ATR multiples — versus the historical average move? Returns an early/mid/late read so an agent doesn't buy the top. Anti-chase context.

Holt's linear trend method - level + trend (no seasonality). Two smoothing parameters: alpha (level) and beta (trend). Forecast extrapolates as a straight line from the last fitted level along the last fitted trend, so it grows or shrinks linearly with horizon. Use this when your series has a persistent up/down trend but no seasonal cycle (e.g. a SaaS MRR climb, a deflating cohort retention curve).

Simple exponential smoothing (SES) - level-only forecast for series without trend or seasonality. Higher alpha (closer to 1) tracks recent values aggressively; lower alpha (closer to 0) smooths through noise. Default alpha=0.3 is a common conservative pick; pass an explicit alpha or use forecast-eval to pick the one that minimizes backtest error. Forecast is flat (= last fitted level) for all horizons.

Backtest a forecasting method on the input series by holding out the last `testSize` observations, forecasting them, and computing MAPE (mean absolute percentage error) + RMSE (root mean squared error). Lets an agent pick which method (mean / naive / drift / ses / holt / holt-winters) actually fits its data before committing to a forward forecast.

Get a random fortune via x402 payment on Base mainnet.

🆕 Cross-chain inflow detection. Reads a wallet's recent USDC MINTS and correlates them with Circle CCTP receives to tell you whether its USDC is freshly bridged in (and from which source chain — Ethereum, Arbitrum, OP, Polygon, Solana…) vs natively issued. Freshly bridged capital is new money / a possible cross-chain hop — a real signal for trading and liquidation agents that no other Base tool surfaces. wallet= required, days= optional (default 30, max 90). Not financial advice.

Convert kanji-mixed Japanese (JP) text to hiragana, katakana, or romaji (Hepburn/Nippon/Passport), with a per-token breakdown of surface form, reading, and part-of-speech. Backed by the kuromoji morphological analyzer. Use to generate ruby readings, build search indexes, or preprocess text for speech synthesis.

Fused directional trading signal with confidence score

Fuzzy-search Japanese (JP) train stations by name — accepts kanji, kana, or romaji and tolerates the 駅/station suffix. Returns matching stations with their operators and lines. Use to resolve a station name to a canonical record.

Fiat FX rates + amount conversion over free public APIs (Frankfurter/ECB primary, open.er-api fallback, 160+ currencies). Fiat-to-fiat, distinct from crypto /price.

Fx Rate — an agent-callable fx rate service, payable over x402 (USDC on Base). Provided via Apify. Priced around 0.001 USD per call.