Every agent-payable API.

Arbitrage stakes, expected value, Kelly criterion and profit calcs for racing bets. For betting and value-betting agents.

Greyhound form — recent runs, sectional times, trap record, kennel form and a verdict for any track worldwide. For greyhound betting agents.

Deep horse-form analysis with ratings and trainer stats. For horse-racing handicapping agents.

Greyhound trap bias — win rates per trap, rail vs wide advantage, pace profile and actionable angles for any track. For greyhound betting agents.

Statistically-backed racing angles — trainer/jockey combos and trends. For horse-racing betting agents.

Historical race trends — draw bias, trainer records and value angles. For horse-racing betting agents.

Complete racecourse profile with live going conditions and draw bias. For horse-racing betting agents.

Speed ratings — RPR, Timeform and going-adjusted performance figures. For horse-racing handicapping agents.

Is the domain's email hosted by rackspace email? Looks up the MX records (Cloudflare DoH) and matches them against rackspace-email's mail-exchanger patterns, returning yes/no, the MX hosts and which matched. Provider detection for deliverability, sales and migration work. $0.01 per lookup.

Trending topics and breaking stories across tech, dev, science, business, culture, politics, and entertainment — aggregated from multiple public sources with regional and time-window filters. Flat sub-cent price per call; the cheap first stop for what is happening right now.

Radar CNPJ: due diligence dossier of a Brazilian company by its CNPJ, with a risk light

Radar sample scorecard: first sightings across the latest N published snapshots, grouped by original verdict and compared to current quotes. Missing outcomes stay null; observed liquidity below $100 is reported separately; holding periods vary

Convert an integer between numeral bases 2–36 (binary, octal, hex, base36, …). Arbitrary size via BigInt; digits are case-insensitive and a leading minus is allowed.

Cryptographically secure random integers in a range you choose (unbiased), up to 1,000 per call.

Call when an agent needs a CSPRNG value from local crypto. mode is int, bytes, or choice. bytes n is at most 64. choice picks from a comma-separated list of at most 100 items, with optional shuffle. An audit id is returned. There is no seed. No network. Send JSON {"mode":"int","min":1,"max":10}. Exact $0.001 USDC on Base. Try unpaid POST /v1/sandbox/random first.

Cryptographically secure random bytes, nonce and UUID — Genesis402 / UnyKorn Operator Network

Cryptographically secure random picker for 2-100 JSON choices. Use for low-stakes one-off random or weighted selection, unbiased tie-breaking, and sampling. Returns the selected value and index, request ID, and weight totals for audit logs. $0.001 USDC per paid request. Not for stable assignments, gambling, security tokens, or consequential decisions; outcomes are not provably fair.

Random fortune — fixed price; x402 exact or MPP one-shot

Random fortune generator: returns a freshly written one-line fortune every call, paired with a lucky number and a lucky HTTP status code for good measure. Priced as the cheapest possible test payment, it doubles as a simple way to confirm a wallet or payment integration is wired up correctly before moving to pricier endpoints. No two calls repeat the same fortune.

Counts zeros, ones and runs, reports a normalized monobit imbalance, and compares observed runs with the IID Bernoulli expectation. It generates no random number and is not a NIST test-suite replacement, entropy estimate or certification of cryptographic randomness.

Produces random hex strings or alphanumeric secrets, 8 to 128 characters, from OS-grade entropy, alongside batch UUID generation, none of it logged or retained. Useful for session tokens, temporary passwords, API credential material, and one-time codes where true randomness matters more than a pattern an LLM might repeat.

Random UUID v4 — idempotency keys and x402 requestKeys on demand; canonical $0.001 target for testing x402 stacks

Generate cryptographically-secure random bytes, returned as hex, base64 or base64url.

One or more random colours in hex, RGB and HSL, optionally limited to pastel or dark tones. Use for placeholders, avatars and design ideas.

One curious but true fact, in English or Spanish, filtered by topic: science, computing, history or nature. Takes parameters, returns an id so you can avoid repeats across a session, and accepts a seed for a reproducible answer.

Generate one or more uniformly-distributed random integers in an inclusive [min, max] range.

One random joke, in English or Spanish, filtered by category: programming, crypto or general. Unlike the usual one-liner endpoints this one takes parameters, returns an id so you can exclude what you have already seen, and accepts a seed for a reproducible answer.

Uniform random integers in any range you give, with or without repeats. Rejection sampling, so the ends of the range are not slightly less likely - which is what happens with modulo.

One or more random whole numbers in a range (inclusive), optionally all different, from a cryptographic random source. Use for draws, sampling and games.

Pick one or more items at random from a list you send, with or without repeats. The list is yours, so this is the unbiased chooser an agent needs when it has options and no reason to prefer any.

Draw a random sample from a provided array — without replacement by default (a fair shuffle), or with replacement when unique is false. count defaults to 1.

Generate a random string of a given length from a named charset (alphanumeric, alpha, lower, upper, numeric, hex, base58) or a custom alphabet. Unbiased character selection.

Test whether a version satisfies a semver range (^, ~, x-ranges, ||, hyphen).

The world's 100 largest banks ranked by Bitcoin and digital-asset adoption, from the Global Institutional Bitcoin Adoption Index. Returns every bank with its rank, country and weighted score out of 100, plus the index average, median and how many banks score 25 or higher. Answers: which banks lead on Bitcoin, where does a bank sit against peers, how far along is the sector. Scored from public sources only and updated monthly.

PolySignal ranks current Polymarket opportunities by EV, confidence, size hint, risk, and staleness for agent research workflows.

Rank US listed companies by a figure from their SEC filings (revenue, net income, assets, cash, long-term debt, R&D, dividends paid or buybacks) for a year (CY2025) or quarter (CY2026Q1), with ticker and exchange.

Rank US listed companies by a figure from their SEC filings (revenue, net income, assets, cash, long-term debt, R&D, dividends paid or buybacks) for a year (CY2025) or quarter (CY2026Q1), with ticker and exchange.

SEO and AEO website audit. Returns an audit ID and status URL while processing, then a report URL when completed. Check status approximately every 30 seconds.

Up to 25 Google keywords a domain ranks for, with position, ranking page, search volume, CPC and difficulty (DataForSEO Labs Ranked Keywords).

Ranked directory of x402 endpoints by measured live quality (not by on-chain volume). Includes score, grade, latency and pricing per endpoint.

Rare Disease Reference (Orphanet). Rare disease reference from Orphanet by name or ORPHAcode: definition, synonyms, ICD-10 / ICD-11 / OMIM / UMLS / MeSH codes, inheritance, age of onset, prevalence estimates, and clinical features (HPO phenotypes) ranked by frequency with diagnostic-criterion flags. Orphadata, CC BY 4.0; not medical advice.

Ratatouille demo hello world: returns a greeting and a timestamp.

Currency exchange rates from the European Central Bank's official euro reference rates: convert an amount from one ISO 4217 currency to up to 30 others, today or on any date in the last 90 days. Cross rates computed via EUR.

What does Medicare pay for this CPT or HCPCS code at this ZIP? Physician Fee Schedule facility and non-facility allowed amounts with the RVUs and GPCIs behind them, any US ZIP or Medicare locality, 2025 on, computed by Distill from CMS’s quarterly RVU files. Updated quarterly. $0.01 per call (x402, USDC on Base); 3 free calls a day.

Tell this server whether a call you paid for delivered what it promised. Bound to the receipt: give it the settlement transaction from that call's PAYMENT-RESPONSE (or Payment-Receipt) header and a verdict of "good" or "bad", and only the wallet the ledger records as having paid for that exact call can write it - so a rating here is always a real customer about a real purchase. One verdict per settlement transaction (sending another replaces yours, it never stacks).

US Treasury average interest rates on a specific date (YYYY-MM-DD)

Use when you need an official daily exchange rate or currency conversion (USD, EUR, KRW, JPY, CNY, GBP + 25 more). Input: base (default EUR), optional symbols (comma list), date (YYYY-MM-DD, last ~90 days; weekends use the prior fixing), amount. Output: JSON rates for the fixing date, % change vs prior fixing, converted amounts, raw ECB EUR rates. Source: ECB statistics; reference rates only. Example: ?base=USD&symbols=KRW,JPY&amount=100

Historical and current Japanese interest-rate series from the Bank of Japan's official Time-Series Data Search Site: the unsecured overnight call rate (proxy for the BOJ policy rate operating target, daily since 1998) and the basic discount/loan rate (formerly 公定歩合, daily since 1882). Factual published data only; not investment advice or a rate forecast.

Official daily foreign-exchange reference rates for about 30 currencies, in any base currency, with optional amount conversion.

Committed IFTA tax rates for a quarter (?quarter=2026-Q2&fuel_type=diesel&jurisdiction=WA), grouped by jurisdiction × fuel type with effective periods clipped to the quarter — mid-quarter revisions read as separate periods. Human-reviewed against iftach.org every quarter.