Every agent-payable API.

Official French administrative reference from geo.api.gouv.fr (INSEE/IGN data). Look up communes by ?cp=31700 (postal code), ?code=31056 (INSEE), ?nom=Blagnac (fuzzy name) or ?lat=43.63&lon=1.37 (commune containing a point). Returns up to 20 communes with name, INSEE code, population, postal codes, departement, region and EPCI. The postal-to-INSEE mapping is the pivot key for joining French territorial datasets. Cached 7 days.

Euro Short-Term Rate (ESTR), the official euro overnight benchmark, direct from the ECB Data Portal (dataset EST, published each TARGET2 business day ~08:00 CET). Query: ?last_n=5 (1-30 fixings, default 1) &include_volume=true to add the underlying transaction volume in EUR millions. Returns date-sorted observations plus the latest fixing; 1h cache.

Carbon intensity of Great Britain's electricity grid from the official NESO Carbon Intensity API (CC BY 4.0), in half-hour periods with a low/moderate/high index. No params -> current national half-hour; ?horizon=fw24h|fw48h adds the forecast; ?region=1..17 (13=London) switches to a DNO region and includes the generation mix per fuel. 30-min upstream cadence, 30-min cache.

Live DNS records resolved via Cloudflare 1.1.1.1 DNS-over-HTTPS (public facts, real time). Query: ?name=anthropic.com&type=MX (type in A|AAAA|MX|TXT|NS|CNAME, default MX). Or ?name=anthropic.com&check=email -> combined MX + SPF + DMARC with an email_ready boolean, useful before emailing or invoicing a contact. JSON with records list; 5 min cache.

Latest observed 15-min records from RTE's eCO2mix national real-time dataset (ODRE portal, Licence Ouverte 2.0). Per record: UTC timestamp, consumption vs D/D-1 forecasts (MW), production by source (nuclear, wind, solar, hydro, gas, coal, bioenergy, storage), grid CO2 intensity (g/kWh) and commercial exchanges per border. Query: ?rows=1-12 (default 4 = last hour). 15-min cache.

Full list of official public holidays for one country and year, from the Nager.Date registry (100+ countries, legally accurate dates). Query: ?country=FR (ISO 3166-1 alpha-2, required) &year=2026 (1975-2077, defaults to current year). Returns date, English + local name, nationwide flag, regional counties and holiday types per entry. Cached 24h.

Latest earthquakes from the USGS real-time catalog (public domain, updated within minutes). Query: ?minmagnitude=4.5&limit=20; optional starttime/endtime (ISO 8601), geographic filter latitude+longitude+maxradiuskm, alertlevel=green|yellow|orange|red (PAGER). Returns a normalized list: magnitude, place, UTC time, coordinates, depth, tsunami flag, significance. 5 min cache.

Deterministic Legal Entity Identifier check for regulatory reporting pipelines (EMIR, MiFID II require a valid LEI per counterparty): structure regex and ISO 7064 mod 97-10 checksum over the 20-char code. Query: ?lei=HWUPKR0MPOU8FGXBT394. Returns valid, lou_prefix, entity_part and a failure reason. Filters typos before hitting the GLEIF registry (see /v1/global/lei for the live record). Pure offline, 1y cache.

European Central Bank reference exchange rates for any past date or date range (business days since 1999-01-04), via frankfurter.dev. Query: ?date=2026-05-01 for one day, or ?start=2026-05-01&end=2026-05-08 for a daily series (max 366 days), plus ?base=EUR&symbols=USD,GBP (symbols optional -> all). Series responses nest rates by date. Historical data is immutable; served with a 24h cache.

Current Hacker News front page via the official Firebase API, fanned out and merged into one payload: id, title, url, score, comment count and age in minutes per story. Query: ?n=20 (1-30 stories) &min_score=100 (optional score floor). Real-time tech signal for launch/incident/buzz detection. 5min cache.

Postal code resolution for ~60 countries via Zippopotam.us (GeoNames data, CC BY 4.0). Forward: ?country=us&code=90210 -> place names, state, lat/lon. Reverse: ?country=us&state=ca&city=beverly hills -> matching postal codes with coordinates. Unknown codes return found=false (an explicit validation verdict). Cached 30 days.

Near-real-time Great Britain national electricity demand outturn from the Elexon Insights (BMRS) open API: 5-minute MW readings sorted oldest to newest (default: last 24h = 288 points), plus a 'latest' field with the most recent value. ?last=N (1-500) sets how many recent points to return, e.g. ?last=12 = last hour. Upstream updates every ~5 min; served with a 5-min cache.

Deterministic ISIN check before routing an order or paying a market-data API: structure regex (2-letter country or XS/EU, 9-char NSIN, check digit) and the Luhn checksum over the base-36 expansion. Query: ?isin=US0378331005. Returns valid, country_code, nsin, check_digit and is_international. A corrupted ISIN means a rejected order or the wrong instrument. Pure offline computation, 1y cache.

Current wall-clock time for any IANA timezone, resolved live by timeapi.io (IANA tz database, includes DST rules). Query: ?tz=Europe/Paris (or America/New_York, Asia/Tokyo...). Returns ISO datetime, date, time, day_of_week and dst_active flag. Served with a 60s cache.

Deterministic BIC/SWIFT check before an international payment: ISO 9362 structure (4-letter bank, 2-letter country, 2-char location, optional 3-char branch) plus a real ISO 3166-1 country-code verification. Query: ?bic=BNPAFRPP or ?bic=DEUTDEFF500. Returns valid, parsed parts and is_test_bic (8th char '0'). Pairs with /v1/validate/iban for country-consistency checks. Pure offline computation, 1y cache.

Recommended Bitcoin transaction fee rates in sat/vB (fastest, half-hour, hour, economy, minimum) from mempool.space, computed from the live mempool. Optional ?include=difficulty adds the current difficulty retarget estimate (change %, remaining blocks/time). No required params; served with a 60s cache.

Real browser-side adoption signal from the official jsDelivr Stats API: global CDN hit rank, rank within npm, total hits over the period, previous-period comparison and a derived trend (up/down/flat, lower rank = more popular). Query: ?pkg=react&period=week (period: day, week, month, year). Complements npm download counts; cached 6h.

French address geocoding on the official Base Adresse Nationale (api-adresse.data.gouv.fr, Etalab/IGN, continuously updated). Forward: ?q=8 boulevard du port amiens with optional &type=housenumber|street|locality|municipality &citycode=80021 (INSEE filter). Reverse: ?lat=49.897&lon=2.290. &limit=1-10 (default 3). Each match returns normalized label, confidence score, lat/lon, street, postcode, city, INSEE citycode and context. No match returns 400 (not billed). Cached 24h.

Fetch a verified smart-contract's full source, ABI, compiler settings and NatSpec docs for an EVM address, and automatically resolve a proxy to its implementation so the response also carries the implementation ABI. One call returns everything an audit or integration agent needs to understand the contract, keyless and pay-per-call. Unverified contracts are reported honestly.

Extract structured data from a URL or raw text into strict JSON matching a schema you provide. Fields the content doesn't support come back null - never an invented or approximate value, and an unmatchable schema returns an explicit error. Try GET /extract/sample. Part of the AgentIndex content kit (pdf, web-read, extract, summarize, detect-language) - see GET /capabilities.

Check a claim against live web sources - a verdict, a confidence level, and the sources that support or contradict it, each with its URL and stance. Returns 'inconclusive' rather than a guess when the sources don't clearly settle it. Try GET /fact-check/sample. Part of the AgentIndex content kit (pdf, web-read, extract, summarize, detect-language) - see GET /capabilities.

Standardized financials for one company from SEC EDGAR: up to 15 fiscal years + TTM, balance sheet, ratios, XBRL tag provenance. $0.01 USDC.

falcon.sol: Lev-fin credit comps for up to 12 tickers from SEC data: gross/net leverage, EBITDA/interest, FCF/debt, debt capacity (leverage, coverage, DSCR lenses), capacity at peer-median leverage, 3 rated structures, credit memo. Assumptions explicit. $0.24 USDC.

falcon.sol: LBO snapshot for a US ticker from SEC data: take-private entry EV, sources & uses, 3 debt structures, debt schedule with sweep, IRR/MOIC, 3x3 IRR grid, exit at peer-median EV/EBITDA, credit memo. Assumptions explicit. $3.99 USDC.

falcon.sol: Use this when you need to price GPU compute or check whether a GPU quote is fair. Send GPU models (h100, h200, b200, a100, l40s ...); get listed USD per GPU-hour comps from RunPod, Modal, Lambda and CoreWeave public pricing pages: every offer with tier, terms, source URL and fetched_at, plus min/median/max, cheapest provider, on-demand median and your quote's percentile. Cached hourly; stale data is flagged. $0.04 USDC.

falcon.sol: Trading comps for up to 12 tickers: market cap, EV, EV/Revenue, EV/EBITDA, P/E, P/FCF, growth, margins, peer median/mean. $0.05 USDC.

falcon.sol: Full document extraction (all pages) for invoices, receipts, POs, W-9s and generic PDFs. $0.03 USDC.

falcon.sol: OCR for agents: scanned or photographed PDF (up to 20 pages) or a PNG/JPEG/WEBP/BMP/TIFF image to text or markdown, using local Tesseract (English). Send a URL, base64 file or raw image body. No text found is not charged. $0.0045 USDC.

falcon.sol: PDF to plain text or markdown for agents and RAG pipelines. Send a URL or base64 PDF (max 60 pages, 4 MB); get page-by-page text in reading order, with automatic local OCR for scanned pages. format=markdown for headings, bullets and table rows. Empty result is not charged. $0.0025 USDC.

falcon.sol: Bank statement extraction for agents: every transaction + underwriting metrics (ADB, NSF, MCA/loan positions, revenue trend, DSCR inputs, integrity flags). $0.40 USDC.

falcon.sol structures: structured-note pricing for crypto. Send a JSON term sheet (autocallable, barrier reverse convertible, range accrual, principal-protected, shark fin) on BTC, ETH or SOL; get the fair coupon or participation, probabilities (autocall per observation, knock-in, loss), greeks, a spot x vol scenario grid and payoff-diagram data. Monte Carlo on live Deribit implied vol. Free preview; full quote $0.02 USDC via x402 on Solana or Base.

FDA inspection history for a manufacturer from public FDA records. Give an FDA FEI number or firm name and get the inspection classifications (Official, Voluntary or No Action Indicated) with the trend, plus the Form-483 observation citations with their cited CFR clause and short description. Deterministic, no LLM. Risk indicators, not legal or regulatory advice.

Current network fee conditions -- gas price (ETH/Base/Arbitrum/Optimism/Polygon), sat/vB fee tiers (Bitcoin), or recent prioritization fees (Solana) -- useful for an agent about to construct a transaction itself.

Compare two to four product pages by verified identity, listed price, availability, shipping cost and rating without converting currencies.

Fetch one URL and return clean article Markdown without navigation, ads or cookie banners.

Return title, description, OpenGraph card, canonical URL, feeds, favicon and detected technologies for one URL.

Read the mandatory public disclosure of one domain and return company, postal address, e-mail, phone, VAT and register data with a source for every value.

Extract up to ten URLs in one paid call.

Extract up to ten URLs in one paid call.

Inspect any media file and get its technical metadata. Container, duration, codecs, DISPLAY dimensions and rotation, frame rate, HDR, audio channels and sample rate, in a normalized summary plus the full raw analysis (JSON, XML, CSV, flat or INI). Provide a source URL or upload the file directly; the result is downloadable for 24 hours. A file that cannot be decoded still answers with the diagnosis of why. Fixed price per probe in USDC over x402; no account or API key. Input up to 100 MB.

Extract still frames from any video as JPEG, WebP or PNG: sample many for a vision model, or grab one frame at a given timestamp (a thumbnail/poster/screenshot). Modes: every frame, every Nth, a rate in seconds, keyframes, N evenly spaced, or exact timestamps. One frame at 5s: mode=timestamps, timestamps=[5], format=jpeg. Up to 1000 frames/job; result is a manifest of frames with timestamps and download URLs, kept 24h. USDC over x402; no account; input <=100 MB.

Civil, nautical and astronomical twilight boundaries plus golden and blue hour windows for a date and coordinate, in UTC.

Converts an amount between currencies at the European Central Bank daily reference rate, for the latest publication or any past date back to 1999.

Validate an ISO 17442 Legal Entity Identifier checksum and extract its issuing LOU prefix.

Registrar, creation and expiry dates, status codes, nameservers and DNSSEC state for a domain, from the authoritative registry over RDAP.

Convert a US street address to latitude/longitude with a matched, standardized address. US coverage only.

The 15-digit census block FIPS code containing a US coordinate, with its county and state codes and the block bounding box.

For one DailyMed SET ID: the current label version and date, its products with active ingredients and package descriptions, its marketed NDC codes, and the full revision history.

Simplify a fraction to lowest terms and return its decimal value.

Received R&D-funding profile of a company, organization or principal investigator, fused from NIH RePORTER, NSF and SBIR/STTR public records. Give a company or organization or PI name and get every federal research award it received with amounts, agencies, years, tech focus and abstracts, plus computed aggregates: total non-dilutive funding, breakdown by agency and by year, technology clusters, and active-award count.