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Showing the 23,394 endpoints that answered our last unpaid knock, most recently knocked first. The catalogue holds 90,752 listings in all: 22,573 charge, 880 answered without asking, 10,014 did not reach a working endpoint, and 57,285 we have never knocked on. Type something above to search all of them.
Paid AI-agent access to Blockchain.com Explorer API
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Looks up a barcode number across Open Food Facts and a general product database, returning product name, brand, category, packaging, quantity and images where present. The check digit is computed locally before anything is queried: an invalid number is a typo, and reporting it as not found would send the caller looking in the wrong place.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Rebuilds an invoice from its lines and compares the result with the stated totals. Line by line it checks quantity times unit price against the line total, applies line and document discounts in the right order, groups the net amounts by tax rate and computes the tax per group, then compares net, tax and gross with what the document claims.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Which businesses carry public-record distress markers? One observational row per subject across ten tracked marker types — WARN notice, Form 5500 participant drop, final filing, or Schedule H asset decline, IRS auto-revocation, SEC NT / 8-K / going-concern filings, FMCSA authority revocation, active enforcement case — with per-marker counts, dates, and details. Ticker/CIK-mapped where identifier-verified, basis disclosed. Counts as filed, never a score. NOT a consumer report, no FCRA use.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
[3-LEG] Hurricane chain, one basin (?entity=atlantic|epacific|cpacific): leading NHC official 2-day and 7-day genesis probability, QUOTED from NHC, never our forecast -> current active storms - category, wind, pressure, position -> realized official watches, warnings, landfall (confirmation gate). A sequential chain, not one reading - confidence = how many legs are lit, in order. Sources: NOAA NHC. Descriptive only, never a forecast or advice. No data -> 422 no_charge, not billed.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Japan official readings in one call plus an independent cross-agency check: JMA seismic intensity (shindo), RSMC Tokyo typhoon analysis, Ministry of Finance JGB yields across seven tenors, and the Japan rows of BIS and FRED. The same earthquakes appear as JMA measured them and as USGS measured them, side by side - different agencies, different quantities, and we adjudicate nothing. Descriptive only, never a forecast or advice. No data -> 422 no_charge, not billed.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
One id in, its official lifecycle state out - no need to know which line tracks it first. Covers 19 lifecycle lines (stablecoins, AI tools and datasets, neoclouds, DePIN, RWA, carbon projects, ESG funds, tariff measures and more): status band, birth/end dates, death type, lifespan, official source_ref. If two lines track the same id you get BOTH - nothing is picked for you. Unknown id -> 422 no_charge, not billed. Every record carries an offline-recomputable record_hash.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Cartons per 20GP, 40GP or 40HC container by grid packing and payload limit, with CBM used and what limits the load.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Look up a country, currency or language from any ISO code, TLD or name, with fuzzy matching and ambiguity flags.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Researcher profile by name: works, citations, h-index and institution of the best match, with an ambiguity warning.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Write a money amount in words for a cheque (EN/ES/FR/DE): you give the currency names, no rates; words or 56/100 cents.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Tables and chairs for a guest count from seats per table, with spare chairs, empty seats and tables for food, cake or gifts.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Search Wikidata by name; returns candidate Q-ids with descriptions and instance-of hints to disambiguate.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Country profile from Wikidata: capital, population, area, languages, currency, leaders, ISO codes, borders, with property ids.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Convert cooking measures: cups, tablespoons, teaspoons, ml, ounces and grams, with weight for flour, sugar, butter and more.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Corporate parents of a legal entity from LEI data: direct parent and ultimate parent, or why none is reported.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Check whether a European company can receive an electronic invoice today, through which Peppol participants and formats, and which national e-invoicing mandate applies to it from which date. Give a French SIREN or SIRET, an intra-EU VAT number, a national company number with its country (BE KBO, NL KvK, IT P.IVA, DE), or a company name and country. The Peppol Directory is queried by free text AND by exact participant on every scheme plausible for the country (FR 0002, 0009, 0225 SIREN_routing, 9
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Legal entity record by LEI: legal name, jurisdiction, status, and whether its registration is current or lapsed.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Funding persistence for a perp over the last 6-168 hours: average, sign streaks, and how unusual now is.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Split a URL into scheme, host, port, path, query and fragment per RFC 3986, with warnings. Never fetches the URL.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Read multiple web pages for AI agents: give up to 5 URLs, get the full clean text of each page, rendered in a real browser so JavaScript sites work, with title and final URL, in one call and one payment. For RAG, research and reading the results of a web search. Pages that fail are listed with the reason.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Convert between grams, moles and molecule counts for a chemical formula using Avogadro's number.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Composicion premium de VideoDanza Generativa con descripcion poetica, parametros deterministas y texto curatorial listo para metadata NFT.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Clinical trial search — find ClinicalTrials.gov studies by free text, condition, intervention, sponsor, recruitment status and phase, and get each study's NCT id, titles, status, phases, conditions, interventions, sponsor, start and completion dates, enrollment and whether results are posted. Use for drug development, medical research and patient-recruitment questions.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Top blockchains ranked by total DeFi TVL (DefiLlama): name, TVL USD, gas token. No params. Use when an agent needs a quick map of where DeFi capital sits.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Exact fraction and frame duration of 23.976 to 60 fps, and the speed-up and runtime change when converting to another rate.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Empirical formula from percent or gram composition by element, and the molecular formula if you give the molar mass.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Homebrew formula status: version, license, deprecation or disablement, install counts over 30, 90 and 365 days.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Convert between Gregorian and Julian calendar dates (Old Style / New Style) with the day difference for that date.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Explain a 5-field cron expression in plain English and list the next 5 run times in UTC.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Recent versions of a package with publish dates, deprecation flags and release cadence in days between releases.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
On-chain intelligence — whale transfers trending tokens DeFi TVL on Base and Ethereum
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Crypto price history: give an asset like ETH, BTC or SOL and up to 365 days, get past USD prices from Chainlink's on-chain feed with times, plus first, last, high, low and change.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
EPSS exploit-probability score and percentile for up to 10 CVEs, ranked, with a high/elevated/low verdict.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Is this asteroid on the JPL Sentry impact-risk list? Probability, Palermo and Torino levels, size and likeliest impact dates.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Crypto market overview in one call: Fear & Greed Index, BTC, ETH and SOL price, 24h change and funding, the highest and lowest funding rates, top gainers and losers, and Hyperliquid open interest.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Dependency weight of a package version: direct and transitive dependency counts and a light/moderate/heavy verdict.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Hyperliquid perpetuals market data: mark price, 24h change, hourly funding rate, open interest, volume and max leverage for any perp or the top markets, plus funding history for one coin.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Health of a Go module via the official proxy: latest tagged version, release age, repository origin and pseudo-version warning.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Dew point from air temperature and relative humidity in C and F, with a human comfort class and condensation hint.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Day-by-day forecast for up to 9 days at any coordinates: high, low, rain total, wind, and a most-likely sky symbol per day.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Repair broken JSON: trailing commas, single quotes, bare keys, comments, Python None/True, missing brackets. Returns parsed.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
How many pizzas to order from guests, kids and slices each, with pizza area, area per guest and a size comparison.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Estimated heating and cooling degree days by month for a location from NASA temperature normals, in Celsius and Fahrenheit.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Radioactive decay: remaining fraction after a time, time to reach a fraction (carbon dating), decay constant and mean life.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Facts for one Wikidata entity: label, description, aliases, instance-of, Wikipedia links and key identifiers.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Who launched this Solana coin, and did their other coins graduate or collapse? Serial launcher check.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Split a VIN into manufacturer code, descriptor and serial parts with region, country and model-year candidates.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Decode a VIN with NHTSA vPIC: make, model, year, trim, body, engine, plant and decoder warnings, with a check-digit cross-check.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Trust score (0-100) for an x402 service listed in the Bazaar: liveness probe, on-chain payer diversity, reported-vs-verified revenue (detects inflated counters and self-dealing), and listing age. Returns full component breakdown and flags.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
The description and the price are the SELLER’S, copied from their listing and not checked by us. The badge is OURS and is one unpaid handshake: “answered unpaid” means it answered us once without asking for payment, which is not a standing offer, and an unpriced listing is unpriced rather than free.
Knocking goes to the knock page, which reads the terms live before anything is signed. A listing can be out of date in both directions, which is the reason to knock rather than to read a row.