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Showing the 22,823 endpoints that answered our last unpaid knock, most recently knocked first. The catalogue holds 83,982 listings in all: 22,019 charge, 863 answered without asking, 9,880 did not reach a working endpoint, and 51,220 we have never knocked on. Type something above to search all of them.
European Central Bank euro reference rates (published once per working day around 16:00 CET): the rate for one currency against the euro, and an optional conversion of an amount between two of the listed currencies. Rates are the ECB's daily reference, not a live market quote; the list has about 30 currencies.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
x402engine — xAI's build-focused model — code generation, analysis, and agentic implementation work
The price is the seller’s own listing. it answered us without asking for payment, once, on the day we knocked, on 2026-10-24.
Pay-per-call: US federal business-day calendar
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Use when an agent needs the top x402 services tagged 'prices'. Returns Retired route /in-prices: now serves the live /in-x402 ranking, the top 25 x402 services tagged 'x402' by 30-day unique paying wallets.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Convert pounds-force per square inch to millibar for pressure. SI/international definitions; IEEE-754 numeric precision. This is a specialised route of the pressure converter, not a separate data provider.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Count allow/disallow rules from robots.txt text. Call when crawl budget planning from a robots body you already fetched. Returns allow_n, disallow_n, sitemaps as deterministic JSON for $0.001 USDC via x402 on Base. First-party local math only—no RPC, live market feed, API keys, storage, or mediagen. Advisory only; the caller owns capital, risk, and production controls.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Finnish trade-register notices from the PRH open data (CC BY 4.0, live, 24 h cache): every notice since late 2014: date, type (formation, change, annual accounts, rectification, merger) and its entry codes (board, representation, capital, auditors, articles, bankruptcy, liquidation, removal, merger…) with PRH labels in EN/FI/SV and a closed family; register memberships (trade, VAT, prepayment, employer). A foreign trader's branch or a form off the YRMU codebook: 404, not billed.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Convert avoirdupois pounds to micrograms for mass. SI/international definitions; IEEE-754 numeric precision. This is a specialised route of the mass converter, not a separate data provider.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Free audiobook finder: public-domain audiobooks from LibriVox (volunteer-read, mp3) with runtime, language, genres and direct zip / RSS / archive.org links, plus audio items from Internet Archive. $0.01 per search.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Is the crowd greedy or fearful right now? The Fear & Greed Index (0-100) at this exact instant, with classification — a point-in-time reading your model's training data cannot contain. [Wrapper over a free public sour...
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Sui mainnet current epoch from the public GraphQL API: epoch number, reference gas price (MIST per gas unit), epoch start and end time, and total checkpoints. Shared objects and package ids are not included: the public JSON-RPC is deprecated and this tool does not query object lists.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Does this wallet have enough USDC on Base? Returns the USDC balance of an address ($0.002 per call).
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Email validation API: verify an email address with syntax check, MX record lookup, SPF/DMARC, disposable and role address detection. Returns a deliverability verdict. No mail sent.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
What is this token worth in USD? Returns the current DefiLlama price of a token on Base (contract address, or eth / weth / usdc) with symbol, confidence and timestamp ($0.005 per call).
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Real-time gas estimates from the pending block base fee with slow/standard/fast tiers in gwei on EVM chains. mempool gas, pending gas, gas estimate, current gas price, fast gas, transaction fee Accepts payment on Base or Solana — either network works.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Fetch identity and profile metadata for a wallet address
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Made-in-China.com wholesale product search: product name, supplier company, price range (USD, as the page's structured data gives it) and stock state from the public results page. Only the first page (about 20 products).
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Split an integer amount of cents among N ratios with zero rounding loss (Fowler's allocation algorithm) - the parts always sum back to the original amount.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Prüft am Objekt banner den Befund Kennzeichnung als Pflichtfeld.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
All common DNS records for a domain in one call: A, AAAA, MX, TXT, NS, SOA, CNAME, CAA and HTTPS, plus DNSSEC validation state. A complete DNS snapshot for audits, migrations and change tracking. $0.01 per domain.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Distance in meters and initial bearing in degrees between two WGS-84 coordinate pairs.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Trading signal accuracy and hit rate, live: whether price moved in the signal's direction after 5m, 15m, 1h and 24h, per signal type and per confidence bucket (calibration), over days=1-120, optionally for one symbol, with the latest signals and outcomes. Use to judge how reliable the signals are.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Search the SEC Investment Adviser Public Disclosure (IAPD) database by firm name: CRD number, firm name and other names, SEC adviser (801-) and broker-dealer (8-) numbers, adviser and broker-dealer registration status, whether disclosures (regulatory or legal events) exist, FINRA registrations, branch count, office city/state/country and the IAPD summary URL; plus the total number of matches.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Cochrane systematic reviews of health interventions, found through PubMed (journal Cochrane Database Syst Rev): PMID, title, publication date and DOI for a search term. Citation records only (no abstract, no full text). Up to 10 per call.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Top Hacker News headlines right now - title, URL, score, comments. Fresh links for agents that need current tech/startup signal. Try GET /news/sample.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
IP Australia trade mark records by trade mark number from the IPGOD open data table on data.gov.au (2017 edition, marked superseded): status, live or dead, mark type, lodgement and registration dates, Madrid indicator. Applicant names are not in this table.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Replaces personal data in a text with placeholders: e-mail addresses, phone numbers, IBANs (mod 97 checked), payment card numbers (Luhn checked only), IPv4 addresses and, with names true, person names found by the chat model. Returns the redacted text and counts per type. Original values are never returned.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Mean SoilGrids bulk density for the 0-5 cm layer. The coordinate is validated against the Natural Earth boundary for Poland; results outside it are rejected before payment.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Search podcast episode content. To find podcasts (shows) by name or topic, use /v1/podcasts/search?q=….
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Use when an agent needs what a Solana address holds in one call. Input: address. Output: JSON slot, SOL balance, every non-zero token (mint, token account, program, decimals, raw and decimal balance, frozen flag; first 50), counts of token and empty accounts. Chain state only, no prices. Bad input: 400, not charged. Example: ?address=CV8t6fnSsckB3bzJSVRxQjVvTgdB35q11Fu3eaF1nz8u
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Stock and crypto news for one ticker: recent headlines and material corporate filing events (8-K) that mention the symbol, with keyword sentiment, source and link. Use to check the news before acting.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Prüft am Objekt video den Befund Freigabe durch robots.txt.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Live prices with 5-minute, 1-hour, 4-hour and 24-hour change and 24-hour volume for the top 50 crypto coins, refreshed every minute.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
UK licensed visa sponsors (Home Office). Every organisation on the Home Office register of licensed sponsors for Worker and Temporary Worker visa routes — organisation name, town and county, sponsor type, licence rating, and the immigration route (Skilled Worker, Global Business Mobility, Creative Worker, and more). One call returns one page of matching records as JSON (25 by default, per_page up to 100) with the total count and the last refresh time; the query parameters filter the records.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
ERC-20 balance of an address for one token contract on a chain: token name, symbol, decimals, raw and human amount, and a USD value when Coinbase has a spot price for the symbol. Only the token you name is read; the native balance is in /api/evm/address.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
One Hacker News item by numeric id from the official HN API (Firebase, public, no key): type, title, author, time, score, comment count, link and plain text. Deleted or unknown ids return 404.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
EUR/JPY forex exchange rate — euro to Japanese yen cross rate — Ed25519 signed attestation
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Mac App Store app metadata from Apple's public iTunes Lookup API by App Store id: name, seller, version, price, average rating and rating count (0 when Apple shows none), genre and store link. Mac apps only.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Validate an IBAN number. Checks format, length, and mod-97 checksum. Extracts country code, bank identifier, and branch code. Pure algorithmic — fast and cheap.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Aave V3 position of any wallet: collateral, debt and remaining borrowing power in USD, LTV, liquidation threshold, health factor and how far collateral can fall before liquidation. Use for liquidation alerts.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Hourly Denver weather forecast (blend model, method labeled) — Hourly weather forecast for Denver: temperature, precipitation probability, and wind, up to 168 hours out. NWS-derived series, bias-blended with our calibrated station model where covered — every response labels the method that produced it. Same shape as /v1/forecast/point with the Denver coordinates built in.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
OpenAI's latest flagship model — top-tier reasoning, coding, and multimodal capabilities
The price is the seller’s own listing. it answered us without asking for payment, once, on the day we knocked, on 2026-10-24.
Use when an agent is about to buy, accept or list a Solana token. Input: mint. Output: JSON riskLevel and rule-based signals with evidence (mint or freeze authority not renounced, permanent delegate, transfer hook, transfer fee, default-frozen accounts, mutable metadata), top-10 holder concentration with owners. Curated issuer stablecoins are marked as expected controls. Not an audit. Example: ?mint=EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Pay-per-call: Base address lookup (who)
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Scrape Wellfound (AngelList Talent) startup jobs by role and city or remote: full description, salary and equity ranges, job type, remote policy, experience, plus startup pitch, size, stage and signals (top investors, growing fast). No login. One search per call (result caps in the input schema); failed lookups are not charged.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Batch identity for French customer/CRM lists: 2 to 300 lines (SIREN, SIRET, FR VAT number or name|postcode), in file order. Per line: resolution (resolu, a_confirmer with up to 5 ranked candidates, introuvable, siren_invalide, siren_inconnu, non_diffusible), SIREN, HQ SIRET, status, cessation date, address, VAT checked live on VIES (indisponible or budget_vies_epuise, never a false invalide), duplicates. $0.003 per line, up to $0.90; with depuis (changes since a date) $0.01, up to $3.00.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
TheSportsDB team search: up to 5 teams matching a name, with sport, league, formed year, stadium, country, website and English description. Community-maintained database; uses TheSportsDB's public test key unless the owner sets THESPORTSDB_KEY.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Circular direction of the dominant surface gradient, clockwise from north. 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 2026-10-24.
AI-driven token verdict API: returns a grade (BASED/MID/COOKED/RADIOACTIVE), a one-liner, a roast, and facts read… Returns: an AI-written token verdict on one token contract: grade (BASED/MID/COOKED/RADIOACTIVE, a stated rule over the contract's own state), a one-liner and a roast, and the facts read: code size, name, symbol, decimals, supply, owner(), proxy slots. It does not read holders, liquidity or price and makes no safety or legitimacy call. Query: token (token contract, 0x + 40 hex).
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
ENS on Ethereum: resolve a name (vitalik.eth) to its address and profile records (avatar, description, url, Twitter, GitHub), or pass an address instead to get its primary ENS name. Uses ENS's universal resolver.
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.