Every agent-payable API.

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).

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

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.

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).

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

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

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.

Official ECB foreign exchange reference rates for about 30 currencies, today or on any past date since 1999, from any base, with amount conversion Official ECB foreign exchange reference rates for about 30 currencies, today or on any past date since 1999, from any base currency, with optional amount conversion. Query: ?base=USD&symbols=EUR,GBP,JPY&date=2024-01-02&amount=250

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.

Foreign exchange / currency conversion reference rates (European Central Bank) for a base currency, source Frankfurter. Parameter: ?base=<ISO 4217 code> (default EUR, e.g. USD, GBP, JPY).

US bond-market signal: yield curve, credit spreads, real yields (no params)

Calculates 9 TTM financial ratios (P/E, P/OCF, P/FCF, P/B, EV/EBITDA, ROIC %, Debt/Equity, Current Ratio, Interest Coverage) directly from official SEC EDGAR XBRL filings with accession audit trails. Disclosures: Financial institutions and IFRS ADRs return null for unclassified balance sheet or missing US-GAAP taxonomy tags.

Raw Solana account: owner program, rent-exemption, data size — Genesis402 / UnyKorn Operator Network

Runs any read-only contract call (eth_call) with your own calldata and returns the raw result, on five chains, with no API key and no rate limit. The escape hatch for anything the typed endpoints do not cover.

Reads a raw storage slot of any contract, decoded as hex, integer and address. How you inspect proxy implementation slots, owners and paused flags that have no public getter. Via eth_getStorageAt.

Raydium (RAY) price in USD now, with 24h and 7d change — Genesis402 / UnyKorn Operator Network

Call when an agent needs a structured RDAP record for a public hostname (private names blocked). Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/rdap first.

RDAP domain lookup — status, registration/expiration dates, registrar, name servers (RDAP is the structured, successor protocol to WHOIS), via rdap.org. Parameter: ?domain=<domain name> (e.g. example.com).

Trading-card appraisal: raw and every grader×grade (PSA/BGS/CGC/SGC) in USD, EUR, USDC, EURC, GBP, JPY, ETH, SOL and BTC, each with its source, n and window; the set's lifecycle phase, measured 30-day momentum and heat; projections through the phases ahead; PnL net of venue fees; break-even; EIP-712 signed. Pokémon only for now.

Given a reaction and a known amount (moles or grams) of one species, compute the amount of a target species. The equation is balanced automatically.

Read a Korean web page as clean text: Naver Blog posts (inside the iframe), Naver News and Daum News articles, and generic pages, returned as title, author, published date, clean paragraphs, images and links. Deterministic extraction, no LLM. Naver Cafe is reported as unsupported.

Read a text record from an ENS name — Genesis402 / UnyKorn Operator Network

Read a Web Page as Clean Markdown. Web page to markdown: read any public URL as clean markdown for an agent — fetches the page (redirects followed), extracts the main article content, drops navigation, footers, cookie banners and link farms, and keeps headings, lists, links, code, tables and images, with title, author, publish date, language and canonical URL. ?max_chars= up to 100000, ?links=true for page links. Private addresses, error pages and non-HTML files are refused before payment.

Fetch a public web page and return clean markdown, title and metadata. Respects robots.txt.

Read any public web page and return its main article content as clean Markdown (readability extraction, boilerplate/nav/ads stripped) — no HTML parsing needed on your side. Body: {url: string (http/https, publicly reachable)}.

Read a public web page as clean text for an AI agent: title, description, main text (scripts, styles and navigation removed) and links. Respects robots.txt.

Fetch a URL and return its main content as clean Markdown (boilerplate stripped)

Read one public web page as clean Markdown-like text, with title and language, from one country (default: a US residential vantage point). Respects robots.txt and Content-Signal. Not charged if the page cannot be read.

Skim: clean reader — URL to agent-ready markdown + metadata, ~4x smaller than raw HTML

Read one public URL and return clean bounded page content with a SHA-256 content hash.

Machine readers pay $0.01 USDC (x402, Base L2) to open this link. Humans can read the free landing page instead: https://agentpaystore.com/tollbooth/

Read any public web page as clean JSON: title, description, site name, publish date, language, readable text (boilerplate removed), Markdown and the page's links. Give it a URL, get the content back in one call. HTML, plain text, JSON and XML pages supported.

Read any web page and get an AI summary: title + 3-5 key-point bullets + one-line takeaway. Reading the web for busy agents — page-to-insight in one call

Call any read-only contract function without a transaction or ABI file: give the signature with return types, e.g. balanceOf(address)(uint256) or getReserves()(uint112,uint112,uint32), plus arguments; returns decoded values.