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Showing the 18,689 endpoints that answered our last unpaid knock, most recently knocked first. The catalogue holds 76,774 listings in all: 18,116 charge, 630 answered without asking, 8,803 did not reach a working endpoint, and 49,225 we have never knocked on. Type something above to search all of them.
DNS/TLS/HTTP health snapshot for a domain
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
URL title/description metadata. ?url=https://example.com
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Livestock feed needed per day and for a period from head count, body weight, dry-matter intake, feed moisture and waste.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Austrian scanner-data Q1, median and Q3 per original reference quantity, with the published month. Example: product Langkornreis, country AT, period 2026-09. Source: Statistik Austria Preisradar, processed by HALOWERK. Original JSON precision retained. DE unsupported. Monthly distributions are not current individual store offers.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Multinomial coefficient (arrangements of repeated items like MISSISSIPPI) and multinomial probability for given odds.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Gulf of Mexico offshore oil & gas leases expiring within N days (?days=)
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Prüft am Objekt iframe den Befund Zeit bis zum sichtbaren Renderstart.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Food cost report from official local extracts. Example: geo DE, category CP01, products Tomaten and Schlangengurken. Consumer indices and German net wholesale quotes retain their own periods and units. Contributions are a category-weight model, not an official additive decomposition. AT retail bands remain unavailable pending acceptance.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Bilinear surface elevation from Copernicus DEM GLO-30. The coordinate is validated against the Natural Earth boundary for Italy; results outside it are rejected before payment.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Grade 1 Braille text to Unicode Braille cells and back, with number sign, capital sign and dot numbers per cell.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Number of non-zero token accounts for a mint and top holders via the indexed RPC. Holders + concentration are the classic rug signals.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Underground Cultural District — catalog of 228 themed digital products (poetry, philosophy, fiction, reflection, plant meditations). One settle returns the full menu with every product's slug, description, price, and x402 endpoint. Each individual product is its own indexable x402 route. The catalog is the doorway.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Morning briefing bundle: market news headlines + Google Trends intel + news sentiment score in one $0.05 call. No account or API key needed.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
PerplexityBot access repair plan fetches current public evidence from the supplied target and evaluates the documented criterion. It returns the observation, threshold, verdict, exact evidence source, limitations and a mode-specific action. The check is passive: no login attempt, payload injection, exploit, purchase, form submission or load test is performed.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Prüft am Objekt api-antwort den Befund DNS-Auflösungszeit.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Image watermark / add text or logo watermark to image files. Also supports PDFs and videos through the same CloudConvert-backed watermark handler. Configurable opacity, position, rotation, font, and margin.
The price is the seller’s own listing. it answered us without asking for payment, once, on the day we knocked, on 2026-10-21.
Clinical trial updates feed — ClinicalTrials.gov studies for a condition that were posted or updated in the last N days, newest first, with status, phases, interventions, sponsor, dates and enrollment. Use to monitor a disease area, a drug or a sponsor for new trials, status changes and posted results.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Complete token due-diligence in one call: live price, liquidity, 24h volume, DEX pairs AND on-chain supply/mint authority. Replaces several lookups.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Convert power between dBm, dBW, mW and W, and the RMS and peak voltage across 50 ohms (or your impedance).
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Validate a securities ISIN check digit and split it into country code and national security number.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Daily pick from the ForgeMesh x402 catalog: a single featured paid endpoint chosen deterministically by UTC date from the full fleet pool. Response includes the featured route, USD price, schema, worked example, and a ready-to-run call pattern, plus where to fetch the featured service's full endpoint sheet. Cheapest recurring way to sample the fleet one capability at a time.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Rounds, byes and total games for single and double elimination, round-robin and Swiss events, with standard bracket seeding.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Pre-pay Check: Ed25519-signed, deterministic facts about another x402 endpoint before you pay it: challenge validity, reachability and latency, host listing count, payout wallet reuse across hosts, last-called and payer trend from daily Bazaar snapshots. Use it when choosing between paid endpoints. Signed facts you can verify against the published key, not ratings; facts only, no advice. Query: ?url=https://...
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
FEMA flood hazard zone at a US latitude and longitude: high-risk (A/AE/V), moderate or minimal, with base flood elevation.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Check exact-parcel permit status and published closeout fields. Coverage: Raleigh, Durham, Wake County, Austin, Seattle, Chicago, Los Angeles, New York City. When enabled, recheckTargets supply exact arguments for this paid endpoint; rechecks return changed, unchanged, or unavailable. Caller-scheduled only. Not an inspection, compliance, occupancy, or closing approval. Uncertain or unavailable evidence is charge-free. npx @velinussage/locus-agent-skill add.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Ideal body weight by the Devine, Robinson, Miller and Hamwi formulas from height and sex, in kg and pounds.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Live Base mainnet USDC and ETH balance for one address, read with eth_call at the latest block; returns decimal and raw values plus the block number. Use it to check a wallet can cover a payment or that funds arrived before acting. Simpler than running an RPC client and decoding ERC-20 calls yourself, and the block number makes each reading reproducible. Query: ?address=0x...
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Current weather + forecast
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Recent Bitcoin transactions for an address — Genesis402 / UnyKorn Operator Network
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Search US federal lobbying disclosures (Senate LDA filings) — who lobbies for whom, on what issues, for how much. Filter by registrant (lobbying firm name), client (organization being represented), lobbyist (individual name), year, period (first_quarter|second_quarter|third_quarter|fourth_quarter|mid_year|year_end), and type (e.g. RR=registration, Q1-Q4=quarterly reports). Each filing: type, year/period, reported income or expenses (USD), registrant + client (id/name/description/state), lobbying
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Read a JPEG's width, height, components and baseline/progressive mode by walking its markers; flags JFIF and Exif.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Base mainnet transaction status: success, failed or pending, with block, confirmations, gas used, effective gas price, from/to and log count. Use it after sending or receiving a payment to confirm it landed and how deep it is. One normalized JSON answer instead of combining receipt and block calls and computing confirmations yourself. Query: ?hash=0x...
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Base token safety check / rug pull and honeypot detector for any ERC-20: owner and renounce status, upgradeable proxy, mint/blacklist/fee/pause selectors, Uniswap V2/V3 and Aerodrome liquidity, simulated buy/sell tax, 0-100 risk score. Every read is pinned to one Base block and the raw contract call results are returned as evidence. Includes a free re-check for 24h (checkId). Pay per call with x402 USDC on Base. Not financial advice.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Rules-based SEO + agent-readiness audit of a domain
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Identify a file type from the first bytes (hex): PNG, JPEG, PDF, ZIP, ELF, EXE, MP4, SQLite and 40+ more signatures.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Dominant ESA WorldCover 2021 class in the analysis area. The coordinate is validated against the Natural Earth boundary for France; results outside it are rejected before payment.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Tropical cyclones active now worldwide with computed Saffir-Simpson category, wind, position and distance (EONET, GDACS).
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Share of ESA WorldCover 2021 pixels classified as tree cover. The coordinate is validated against the Natural Earth boundary for Ireland; results outside it are rejected before payment.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Tire dimensions from size codes like 225/45R17, and speedometer and odometer error when you change to a different size.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Adjectives that commonly describe a noun (ocean: vast, open), or nouns that a given adjective commonly describes.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
US real Gross Domestic Product, quarterly, in billions of chained 2017 dollars (seasonally adjusted annual rate), with the latest reading, prior quarter, quarter-over-quarter and year-over-year change, and recent history. No ticker needed. The broad measure of economic output for macro-aware analysis. Sourced from the St. Louis Fed (FRED). From x402stock
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
minia2a service: x402-is-octal
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Latest airport weather by ICAO code, decoded: flight category VFR/MVFR/IFR/LIFR, wind, visibility, ceiling, temperature.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Parse, sum and format ISO 8601 durations (PT36H, P1Y2M10DT2H30M), or turn seconds into ISO and clock form.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Snell's law: refracted angle between two media (names or indices), critical angle and total internal reflection check.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Mean first-order surface gradient across the analysis grid. The coordinate is validated against the Natural Earth boundary for Liechtenstein; results outside it are rejected before payment.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Resolve a relative link against a base URL per RFC 3986 section 5, handling ../, ./, //host, ?query and #frag.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Live crypto spot price in USD — Coinbase public source, edge-cached up to 30s
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Search the Apple App Store or Google Play for a keyword and get up to 50 apps in store rank order with full details: developer and email, rating, installs, price and update date. Use for keyword/ASO research, finding competitors or building app developer lead lists.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Note name (C#4, Bb3) or MIDI number to MIDI, frequency in Hz and wavelength, with adjustable A4 reference pitch.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
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.