Every agent-payable API.

Monthly nights spent in tourist accommodation (hotels, apartments, campsites) in any European country with year-on-year change; without a country, a ranking for the latest month. Official Eurostat data.

Deep comparison of two JSON documents: added, removed and changed values with their exact path, optionally ignoring list order. Detect changes in API responses, configs or data snapshots.

Search scientific papers on arXiv (AI, physics, maths, economics...): title, authors, abstract, categories, dates and PDF link; by relevance or newest, with category filter (cs.AI, cs.CR, q-fin...).

One endpoint for hashing and encoding: sha256, sha512, sha3, keccak256, md5, sha1, blake2, ripemd160, crc32, all-hashes-at-once, HMAC, base64/base64url, hex, URL and base58 encode/decode, JWT decode (with expiry check) and UUID v4/v5. Input as text, hex or base64.

Generate a QR code as SVG or PNG (base64 and data URI) for any text, URL, payment link, Wi-Fi or vCard, with error-correction level, scale and colors.

Encode a contract function call (calldata) from its signature and arguments, e.g. transfer(address,uint256) with [to, amount]: selector and hex data ready to sign or simulate.

Average interest rate banks pay on new household time deposits (up to 1 year) and on overnight deposits in a euro area country; without a country, a ranking. Official ECB MFI interest rate statistics.

Verify an Ethereum signature: a personal_sign (EIP-191) message or EIP-712 typed data. Recovers the signer address and, if you pass one, confirms it matches. Local computation; EIP-1271 contract wallets are not covered.

Details of a vulnerability by id (CVE-2021-44228, GHSA-..., PYSEC-...): summary, description, severity and CVSS vector, affected packages, fixed versions and references. OSV.dev data.

Euro area AAA government bond yield curve (zero-coupon, 3 months to 30 years) estimated by the ECB, with change in basis points versus N days ago and the 10y-2y slope.

Calls for public grants and subsidies in Spain from every administration (State, regions, city councils) in the National Grants Database (BDNS), latest or by keyword, with level, body, EU recovery funds flag and link.

Social media profiles of a company or project from its website (X/Twitter, LinkedIn, Instagram, Facebook, YouTube, TikTok, GitHub, Telegram, Discord...) plus its contact page. Enrich leads and verify projects.

Recent earthquakes worldwide from the USGS: magnitude, place, depth, time, PAGER damage alert, tsunami flag and felt reports; filter by minimum magnitude, period (hour to month) and distance to coordinates.

Vulnerabilities being actively exploited according to CISA's KEV catalog: CVE, vendor, product, name, description, date added, remediation due date and ransomware use; the latest N days or search by vendor/product (Microsoft, Cisco, Fortinet...).

IBAN validation (ISO 13616 mod-97 and per-country length, SEPA membership; for Spain also the national CCC check digits and bank name). Computed locally, IBAN is not stored.

Spanish Official State Gazette (BOE) daily summary: every item of a given day with section, department and official links, filterable by section (e.g. civil service exams 'oposiciones', appointments, public procurement), department or title keywords.

Moon phase on a date: name, illuminated percentage, lunar age and the next new and full moon dates. Local astronomical calculation.

Text statistics without AI: characters, words, sentences, paragraphs, unique words, reading and speaking time, readability (Flesch / Flesch-Kincaid for English, Fernandez-Huerta for Spanish) and most frequent words.

Standard and reduced VAT rates of any EU member state, and an invoice breakdown (net, VAT, gross) from a net or VAT-inclusive amount, flagging rates that are not in force there.

Read a website's /llms.txt (the standard that tells LLMs what a site is about) as structured data: title, summary, sections with links and descriptions, and whether llms-full.txt exists.

US drug facts from the official label (openFDA): brands, active ingredient, uses, dosage, warnings, contraindications, interactions, pregnancy and manufacturer. Information, not medical advice.

Savings or investment plan with monthly contributions and compound interest: final value, total contributed, interest earned, value in today's money after inflation, yearly evolution and the monthly amount needed to reach a goal.

Price change in % of up to 20 tokens over 1h, 24h, 7d, 30d, 90d or 1y, sorted from best to worst, with current price. Symbols or chain:contract ids. DefiLlama data.

Similarity between two texts without AI: TF-IDF cosine, vocabulary Jaccard and character-trigram Jaccard (catches edited copies), shared words and a verdict. For duplicates, plagiarism checks and deduplication.

Decode EVM calldata (transaction input) with the function signature or, if omitted, by looking up the selector on 4byte; or decode return data with its output types (e.g. uint256,address).

Structured facts from Wikidata about a person, company, place or work by name or Q-id: type, country, population, dates, founders, headquarters, website, ticker, currency, version... labelled in your language. Grounded answers without free text.

Crypto price in any ECB currency (EUR, GBP, JPY, CHF...): on-chain USD price (Chainlink or Uniswap v3) converted with ECB reference rates.

Compare two texts by lines or words: similarity %, added and removed items, list of changes with positions, and a unified diff. For contract versions, prompts, configs or scraped pages.

General government gross debt (Maastricht) as % of GDP for any European country, quarterly; without a country, a ranking with the latest figure of each. Official Eurostat data.

Spanish tax ID validation (DNI/NIF, NIE and company CIF) with check-digit verification. Computed locally; the ID is not stored.

Daily history of the crypto Fear & Greed Index (0 extreme fear, 100 extreme greed): average, max, min, days in each zone and trend, with the series. Alternative.me data.

Turn a Spanish address, street, town or place into coordinates with the official CartoCiudad geocoder (IGN): normalized address, municipality and INE code, province, region, postcode and lat/lon.

Latest regulatory filings of a US listed company (8-K material events, 10-Q, 10-K, insider Form 4, 13D/G...) with date, 8-K items and direct document link. Optional filter by form type.

Repair broken JSON, typical of LLM output: strips ```json fences, comments and surrounding text, trailing commas, single quotes, unquoted keys, Python True/None and unclosed brackets. Returns the object and clean JSON and, if you pass a JSON Schema, whether it validates and why not.

Turn an iCal/ICS calendar URL (Google Calendar, Outlook, holidays, events...) into JSON: upcoming events with title, start and end, all-day flag, location, description and link over the next N days; text filter.

Compare two lists (emails, IDs, wallets, SKUs...): items in both, only in A, only in B, duplicates within each and union, with counts. Up to 100,000 items per list.

US inflation (CPI-U): year-on-year headline, core (ex food and energy), energy and food rates, month by month. US Bureau of Labor Statistics, public domain.

Your public IP address as the server sees it, IPv4/IPv6, network prefix, operator (ASN) and registration country, plus your user agent. Check where an agent exits from or whether a proxy/VPN works.

Extractive summary without AI: picks the most representative sentences (term frequency and position scoring) and returns them in original order, with the reduction percentage. Deterministic and instant.

US labor market: unemployment rate, nonfarm payrolls with monthly job change, and average hourly earnings with annual growth. US Bureau of Labor Statistics, public domain.

Randomness for agents: flip coins, roll dice, draw numbers in a range, pick from a list or shuffle it. Cryptographically secure by default; with verifiable=true it is derived from the latest finalized Ethereum block hash and your seed, so anyone can verify the result.

Annual government deficit (-) or surplus (+) as % of GDP for any European country; without a country, a ranking. Official Eurostat data.

Staking rewards: final amount, total rewards and average per day and month, with daily compounding or simple, after validator commission, in tokens and optionally in USD.

Average household electricity price (2,500-5,000 kWh/year band) in EUR/kWh by European country, with or without taxes: ranking or half-yearly evolution of one country. Official Eurostat data.

Trade result: gross and net profit or loss after entry/exit fees and funding, return on margin, price change, break-even price and notional. Long or short, with leverage.

npm package profile: latest version, description, license, repository, dependencies, unpacked size, weekly and monthly downloads, maintainers and deprecation flag. For dependency choice and audits.

Postal code lookup in more than 60 countries (ES, US, DE, FR, GB, IT, MX, BR...): places, province or state and coordinates.

Summary of a Wikipedia article in any language: title, short description, lead paragraph, image, coordinates, link and Wikidata id. If the title is not exact it returns the closest article, flagged as approximate, with alternatives.

Most read Wikipedia articles in a language on a given day (yesterday by default): what people are looking up, with views and rank, technical pages removed. A signal of current events and trends.

Follow the redirect chain of a URL (up to 10 hops): status code and time of each hop, final URL, domain changes and HTTPS-to-HTTP downgrades. Unmask short and affiliate links before visiting them.