Search US federal contract awards via USAspending.gov by keyword: recipient, award amount, awarding agency, and description — largest awards first. Live gov data, no key. ?q=Lockheed&limit=5

Fetch an RSS 2.0, Atom, or RSS 1.0 feed URL and parse it into normalized JSON: feed title/description/link plus items (title, link, id, published, author, plain-text summary, categories). Deterministic pure-XML parse with a lenient recovery pass f...

Recent FEMA disaster declarations for a US state (openFEMA): title, incident type, declaration type, and date — the federal emergency picture by state, de-duplicated by disaster. Live gov data, no key. ?state=CA&limit=5

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

Search FDA food recall / enforcement records (openFDA): recalling firm, classification, reason (allergen, contamination, etc.), distribution, and dates. Live FDA data, no key. ?q=peanut&limit=5

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 / naiv...

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...

Holt-Winters triple exponential smoothing — level + trend + seasonal component. Use for series with a repeating cycle (weekly retail traffic, monthly utility usage, quarterly revenue). Additive seasonality (constant amplitude) or multiplicative (a...

Three textbook baseline forecasts: mean (forecast = average of history), naive (forecast = last value), drift (linear extrapolation from first to last point). Use as a sanity floor — any sophisticated method (SES, Holt, Holt-Winters) should beat t...

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 conserva...

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).

Bulk-fetch observations for every series in a FRED release in one call. Use it to grab an entire economic report (jobs report, CPI report, GDP release) without enumerating constituent series IDs first. Returns paginated; pass lastSeriesId + lastOb...

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

Fetch any of FRED's ~800,000 economic time series by series ID — GDP (GDPC1), CPI (CPIAUCSL), unemployment (UNRATE), fed funds (DFF), and so on. Supports date windowing and the standard FRED units transformations (lin, chg, ch1, pch, pc1, pca, cca, log). ?seriesId=GDPC1&startDate=2018-01-01&endDate=2023-12-31&units=pc1

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

Snapshot of all G10 spot exchange rates quoted against USD (EUR, GBP, JPY, CHF, CAD, AUD, NZD, SEK, NOK) using ECB reference rates. Includes the USD-strength index (simple geometric mean of inverse rates). No params.

Historical foreign-exchange rate for a specific date using European Central Bank reference rates (via Frankfurter). Returns the rate that was published on (or rolled forward to) the requested date. ?from=USD&to=EUR&date=2024-01-02

Live currency conversion using European Central Bank reference rates (via Frankfurter). Converts an amount between two currencies and returns the rate and date. ?from=USD&to=EUR&amount=100

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

Current gas price (gwei and wei) on Base, Polygon, Arbitrum, Optimism, Ethereum, or Robinhood Chain — for an agent budgeting a transaction. Read-only. ?network=base

Live gas price snapshot for a chain - slow / standard / fast tiers in gwei, plus the latest base fee. Sampled from eth_feeHistory (last 4 blocks, 25th/50th/90th percentile priority fees). Use to estimate before broadcasting a transaction from anot...

Compute the greatest common divisor (Euclidean algorithm) and least common multiple of two positive integers. Also reports whether the two numbers are coprime (GCD = 1).

Great-circle distance between two latitude/longitude points using the haversine formula. Returns kilometers and miles. Deterministic.

Resolve a US latitude/longitude to its county, state, and census block FIPS via the FCC Area API — the geographic context agents need for any coordinate. Live gov data, no key. ?lat=34.0522&lon=-118.2437

Resolve a free-form address or place name to coordinates: lat/lon, display name, bounding box, place type. OpenStreetMap/Nominatim, no key. ?q=1600+Pennsylvania+Ave+Washington+DC&limit=1.

Enrich a public GitHub repository: stars, forks, watchers, open issues, license, topics, primary language plus the full language byte mix with percentages, created/last-push timestamps, default branch, archived/fork flags, and homepage. Keyless (s...

Search 300,000+ US government datasets on catalog.data.gov (CKAN): titles, publishing org, formats, and direct resource URLs — the index agents need before fetching public data. ?q=electric+vehicles&rows=5.

Check whether an email address has a Gravatar: hashes the normalized email (MD5, pure CPU — the raw address is never sent upstream), probes gravatar.com for an avatar, and fetches the public profile when one exists (display name, username, profile...

Group an array of objects by one or more keys and aggregate a numeric field — count (default), sum, avg, min, or max. The SQL GROUP BY agents reach for when wrangling JSON. Deterministic (groups in first-seen order).

Decompress a base64-encoded gzip payload. Returns the result as utf8 (text) or base64 (binary). Refuses to expand past 10MB to defend against zip bombs.

Compress a string with gzip (RFC 1952) and return it as base64. Reports input bytes, output bytes, and the compression ratio so you can decide if it was worth doing. Input can be plain text (utf8) or already-binary content (base64 or hex).

Cryptographic hash of a text string. Algorithms: sha256 (default), sha512, sha1, md5. Returns hex and base64 digests.

Hex encode or decode text. mode: encode (default) or decode.

HKDF extract-then-expand (RFC 5869) — derive output keying material from initial keying material, an optional salt, and an optional info/context string. Useful for deriving multiple keys from a single shared secret. Returns hex-encoded OKM.

HMAC signature of a message with a shared key. Algorithms: sha256 (default), sha512, sha1. Returns hex and base64.

Encode text to HTML entities or decode them back. mode: encode (default) or decode.

Enumerate every <a href> in an HTML string with its anchor text and rel attribute. Optionally resolves relative hrefs against a base URL and filters by a regex on the href. The deterministic way to crawl a page's outlinks without writing a regex.

Extract <title>, <meta description>, OpenGraph/Twitter cards, canonical URL, and JSON-LD blocks from an HTML string. Distinct from /api/meta which fetches a URL — feed this the HTML you already have (from /api/render, /api/extract.body, or your ow...

Run a CSS selector against an HTML string and return the matches (text, attrs, and optionally outerHTML for each). The deterministic alternative to regex when you already have the HTML and know the selector — pairs with /api/render or any page you...

Strip all HTML tags and return plain text. Preserves block-level structure (paragraphs and headings become newline-separated). Faster and more predictable than running extract on a raw HTML string when you already have it.

Extract a <table> from an HTML string as JSON rows (header-keyed) or CSV. Useful for prices, schedules, sports stats, or anything an agent has already fetched as HTML. If multiple tables match, the first is used.

Convert an HTML fragment or document you already have into clean markdown. (To fetch + convert a live URL, use /api/extract.)

Check any public URL: status code, latency, final URL after redirects, and response headers. The uptime primitive for agent monitors.

Fetch a URL and return every response header plus a security analysis: HSTS, CSP, X-Frame-Options, X-Content-Type-Options, Referrer-Policy, Permissions-Policy, COOP/CORP/COEP. Scores 0–100 by presence, flags weak HSTS, and warns on Server/X-Powere...

Validate an IBAN: country code, length, and the ISO 13616 mod-97 checksum.

Parse iCalendar (.ics) text into structured JSON events: summary, start/end, location, organizer, attendees, status, and RRULE. Optional bounded recurrence expansion (expand:true, capped occurrences). Deterministic, pure CPU — send the ICS text, n...

Convert an image between formats (PNG, JPEG, BMP). Send a base64 image and the target format; returns the converted image. Optional jpeg quality (1-100). Deterministic, no network.

Crop an image to a pixel box, and/or rotate (90/180/270) and flip it — applied in that order. Send a public image URL or a base64 image. Returns the result as binary, or as a JSON data URI with dataUri:true. Deterministic.

Extract the dominant colors of an image as a palette of hex values with pixel ratios. Send a public image URL or a base64 image, and optionally how many colors (1-10, default 5). Deterministic bucketed quantization; transparent pixels are ignored.

Extract EXIF metadata from an image (camera make/model, timestamps, exposure, orientation, GPS). Send a public image URL or a base64 image; JPEG, PNG (eXIf chunk), and TIFF carry EXIF. Stripped images return an empty exif object, not an error.