Loading
Showing the 21,135 endpoints that answered our last unpaid knock, most recently knocked first. The catalogue holds 79,624 listings in all: 20,414 charge, 780 answered without asking, 9,306 did not reach a working endpoint, and 49,124 we have never knocked on. Type something above to search all of them.
Postgres Query Rewriter - Rewrites complex PostgreSQL JOINs and subqueries into more efficient, semantically equivalent SQL with concise explanations and index suggestions.
The price is the seller’s own listing. it answered us without asking for payment, once, on the day we knocked, on 2026-10-22.
Emails, phone numbers and social profile links (LinkedIn, X, Facebook, Instagram, TikTok, YouTube, GitHub, Pinterest) scraped live from a website root domain `query` ("acme.com"). Optional `match_email_domain` (only emails on that domain), `external_matching`. One call per domain, no name needed — different from tomba/icypeas person-level finders.
The price is the seller’s own listing. it answered us without asking for payment, once, on the day we knocked, on 2026-10-22.
Signalbase — INVESTORS database: VC firms, angels, PE, corporate investors, government funds, accelerators, family offices, hedge funds, crowdfunding platforms. Filters: `type` (vc/angel/pe/corporate/government/accelerator/family_office/hedge_fund/crowdfunding), `search`, `headquarters`, `countries`, `ticket_size_min`/`max` (USD). `limit` ≤100 — flat price per call. Qualify funds and build investor target lists; pair with signalbase:funding (`investor_name`) to see a fund’s recent deals.
The price is the seller’s own listing. it answered us without asking for payment, once, on the day we knocked, on 2026-10-22.
Linkup — AI web search returning a cited answer or ranked results. Pass `q`; optional `outputType` (sourcedAnswer default — synthesized answer with sources | searchResults — raw ranked hits | structured — pass `structuredOutputSchema` JSON-schema string), `fromDate`/`toDate` (ISO), `includeDomains`/`excludeDomains`, `includeImages`, `includeInlineCitations`. Standard depth — one-pass retrieval. For hard multi-hop questions escalate to linkup/deep-search (5¢).
The price is the seller’s own listing. it answered us without asking for payment, once, on the day we knocked, on 2026-10-22.
Maiko Twilight — Apprentice encounter for understanding long-term skill development and cultural mastery.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-22.
String of Pearls (Flow) — Reflection on cascading connection for understanding linked processes.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-22.
Miyako Odori — Traditional dance performance for coordinated group execution and aesthetic precision.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-22.
Avalanche (AVAX) price in USD now, with 24h and 7d change — Genesis402 / UnyKorn Operator Network
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-22.
Compare two hashes or secrets in constant time — Genesis402 / UnyKorn Operator Network
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-22.
RSS/Atom feed reader: latest items with titles, links, dates, summaries — Genesis402 / UnyKorn Operator Network
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-22.
Know-your-business dossier on a French company, assembled from official registries for compliance and onboarding: verified legal identity, company form and registration, directors and beneficial owners, current administrative status, and insolvency proceedings from BODACC. Returns a structured file an agent can attach to a compliance record.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-22.
Live cryptocurrency prices from CoinGecko's public API: current price in USD/EUR/GBP/JPY plus 24-hour change for any coin by id or common ticker (btc, eth, sol…). Cached 60 seconds. Use this when an agent needs to live token prices and 24h change via CoinGecko.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-22.
Compare two texts line by line using an LCS diff: exact additions, removals and context — in unified-diff style. Deterministic, unlike asking a model to 'find the differences'. Use this when an agent needs to exact line-level diff with unified-style output.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-22.
Check whether a domain name is registered or available, via the official RDAP registry protocol (404 = available). For registered domains it also returns the registrar and creation/expiration dates — useful when an agent needs to name a product or verify how long a business has existed. Use this when an agent needs to is this domain taken? Registry answer, not a landing page.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-22.
Use to track one Polymarket outcome token by its uint256 decimal token id: implied probability, today's VWAP and USD volume, indexed totals, plus on-chain identity (condition id, question title, neg-risk flag) resolved from the market's preparation transaction on Polygon. List active token ids via /prediction-markets. From x402stock, a market & economic data API (x402, USDC).
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-22.
Call when an agent needs an HMAC-sha256 of text with a caller-supplied key, encoded as base64url. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/hmac-sha256-base64url first.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-22.
End-of-day OHLCV bars for every US-listed ticker on a single date; one call returns the entire market. Pass `?date=YYYY-MM-DD` (required). From x402stock, a pay-per-call market & economic data API for AI agents. No API key or account; pay in USDC via x402.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-22.
Call when an agent needs preload hrefs via link[rel='preload'] from a public page or HTML (SSRF-safe). Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/css-preload first.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-22.
Call when an agent needs text of //code via //code from a public page or HTML (SSRF-safe). Exact $0.01 USDC. Prefer unpaid POST /v1/sandbox/xpath-code first.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-22.
Use to see where prediction-market money is flowing: the most recently traded Polymarket outcome tokens with implied probability (last on-chain price), today's VWAP and USD volume, and indexed totals — decoded by our own indexer from CTF Exchange V2 events on the public Polygon ledger, not from any Polymarket API. `?limit=` up to 100. From x402stock, a market & economic data API (x402, USDC).
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-22.
Get a long completion with a large output budget, same engine as /v1/llm. Long-form LLM inference: same engine as /v1/llm with a four times larger output budget, up to 8000 tokens, for answers the cheap route truncates. Body: {prompt, system?, max_tokens?}
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-22.
Live DOGE to USD price (Dogecoin / US Dollar). Zero-param: GET returns current price. 狗狗币美元实时价格行情。ドージコイン/米ドル 価格。Precio Dogecoin dólar. 도지코인 달러 시세. doge usd, doge-usd, DOGE price. Accepts payment on Base or Solana — either network works.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-22.
Convert USD to KRW at live rate. Pass ?amount=100 for value in Korean Won. 美元兑换韩元换算。米ドルをウォンに換算。Convertir dólar a won. 달러를 원로 환전. usd to krw convert. Accepts payment on Base or Solana — either network works.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-22.
Live Copper price (commodity futures, USD). Zero-param: GET returns current price. 铜实时价格行情。銅価格。Precio cobre. 구리 시세. copper price, copper spot, commodity quote. Accepts payment on Base or Solana — either network works.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-22.
Xynaptic Health Hospital Info — French healthcare establishments from official ScopeSanté (HAS): name, city, contact, certifications and activity. GET ?name=CHU or ?city=Lyon. Official French data.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-22.
Xynaptic Car Dealer Check — screen a used-car seller (French dealer or individual) before you buy: official registry identity (company, SIREN), compliance screening (status, VAT, risk keywords), plus press coverage. Buyer-side anti-fraud one-call. Informational, not a compliance decision. GET ?siren=123456789 or ?name=Garage+Auto.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-22.
Xynaptic Supplier Compliance — compliance screening of a French supplier before contracting: registry status (active/closed), collective proceedings signals, high-risk keyword and jurisdiction screening on the legal name, VAT number presence. Each signal carries a severity; overall level clear/medium/high. Informational screening, not a compliance decision. GET ?siren=123456789 or ?name=ACME.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-22.
Best hourly strategies by Sharpe (intermediate): hourly calls, highest Sharpe ratio (return per unit of volatility) over 30d. Ready-made list, no settings: top 10 with full stats for every window from 5 minutes to 5 years (hit rate, return, win ratio, max drawdown, Sharpe, Calmar), runner-ups and current leaders. On-chain verified where covered, else simulated*. Past performance is no guide to the future; not advice.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-22.
Returns the latest block number for the Base chain as a JSON-RPC eth_blockNumber response. Takes no parameters.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-22.
Returns a 24h and 30d digest of Gnosis Chain fees: total fees, top categories with share and leader, and top protocols by share, read from the estate's chain-fees feed.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-22.
How a crypto strategy did in different market conditions: its daily results split into up vs down days and calm vs volatile days for Bitcoin (public price data), over a past window. Historical only; general information, not advice.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-22.
Agent-readiness audit of a website: can AI agents and assistants find and use it? Checks llms.txt, agent card, MCP endpoint, OpenAPI, pay-per-call manifest, sitemap, and robots.txt rules for AI crawlers. Score, what was found, and fixes.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-22.
Change watch for mail health report: runs the check and compares it with the result from your previous call for the same domain (kept 90 days), returning the current answer, changed true/false, exactly which fields changed with before/after values, and when it was last seen. Call it on a schedule to be told when mail health report with an a-f grade in one call changes. $0.01 per check.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-22.
Free public-domain books on "Periodicals": browse the catalogue's works tagged with that Library of Congress subject (283 in Project Gutenberg alone, plus Internet Archive scans), ranked by relevance and popularity, with direct epub/txt/html download links. Add words to narrow by title or author. Re-verified daily. $0.01 per page of 20.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-22.
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.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-22.
Resolve a free-text, brand or generic drug name to its canonical RxNorm concept: RxCUI, normalized name, term type, synonyms, dose forms, and ranked approximate candidates when nothing matches exactly.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-22.
Resolves a stock ticker to the SEC central index key and registered company name.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-22.
Mean SoilGrids pH in H2O for the 0-5 cm layer. 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 2026-10-22.
Mean SoilGrids organic carbon for the 0-5 cm layer. The coordinate is validated against the Natural Earth boundary for Luxembourg; results outside it are rejected before payment.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-22.
South-facing slope orientation index derived from aspect and slope. 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 2026-10-22.
Pay-per-call: Price Digest (public URL heuristic)
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-22.
Pay-per-call: Base Address Reputation
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-22.
A US company's reported financials from its SEC XBRL filings, by ticker or CIK: revenue, net income, diluted EPS, assets, liabilities, equity, cash, operating cash flow, shares, for its last 1-12 fiscal years or quarters, with the us-gaap tag behind each value. Nothing derived: an untagged value is null. US-GAAP filers only. Unknown tickers and outages are not charged. Pay-per-call via x402.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-22.
Change watch for is email hosted by salesforce email: runs the check, compares it with the result from your previous call for the same domain (kept 90 days) and returns the current answer, changed true/false, the fields that changed with before/after values, and when it was last seen. Schedule it to be alerted when this changes. $0.02 per check.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-22.
Look up the name, symbol, decimals and total supply of an ERC-20 token contract on Polygon PoS, live from the contract. Use to identify an unknown token address or to format raw amounts; for a holder's balance use polygon_token_balance. Input is a ticker (USDC, WETH…) or the token's 0x contract address; an address that is not an ERC-20 contract returns 422, uncharged.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-22.
Transaction receipt on Polygon PoS (eth_getTransactionReceipt): success or reverted, gas used, effective gas price, fee paid in POL, number of event logs and any contract created. Use to confirm a payment or call went through; for sender, value and calldata use polygon_tx. Input is a 0x-prefixed 64-hex hash; a pending or unknown hash returns 404, uncharged.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-22.
Check how much of a wallet's ERC-20 token a spender contract is approved to move on Base: the raw and formatted allowance, the token symbol and decimals, and whether the approval is unlimited. Use before a swap or deposit to see if an approve transaction is needed, and to audit a wallet for risky unlimited approvals.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-22.
Bulk is email hosted by proton mail: up to 20 domains in one call, processed concurrently, results in input order with a per-item error field and a failure count. Same answer per item as the single endpoint. Batch enrichment for agents that hold a list. $0.10 per batch.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-22.
Bulk is email hosted by yahoo mail: up to 20 domains in one call, processed concurrently, results in input order with a per-item error field and a failure count. Same answer per item as the single endpoint. Batch enrichment for agents that hold a list. $0.10 per batch.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-22.
What is this amount worth in another currency right now? ECB-backed fiat rates across 160+ currencies with the conversion already applied, and an automatic second source if the primary is down. Fiat-to-fiat, distinct from crypto /price.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-22.
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.