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Showing the 19,086 endpoints that answered our last unpaid knock, most recently knocked first. The catalogue holds 76,774 listings in all: 18,505 charge, 638 answered without asking, 8,860 did not reach a working endpoint, and 48,771 we have never knocked on. Type something above to search all of them.
Audiobook running time from a word count at about 9,300 words per hour (change it), as hours and clock time.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
A whole number as Spanish words (cardinal, ordinal 1-100), gender, un/uno apocope, long scale (mil millones, un billón).
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Cost per million BTU of delivered heat for resistance, heat pump, gas, propane and heating oil furnaces, from your prices.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Nameserver health of a domain: count, provider diversity, whether each nameserver resolves, and the SOA serial.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Irrigation run time and water volume to apply a depth over an area at a pump or system flow rate and efficiency.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Validators grouped by withdrawal address, or blocks grouped by the graffiti they carried. PulseChain (chain id 369). $0.003 USDC per call.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Descriptive statistics for a list of numbers: mean, median, mode, spread, quartiles, outliers, skewness and kurtosis.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Count US trading days between two dates (inclusive), with weekends and NYSE holidays removed and the holidays listed.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Most recent DeFi/crypto hacks and exploits (DefiLlama): date, name, amount lost USD, chain, technique, bridge-hack flag; ?limit= up to 50. No required params. Use when an agent needs live security-incident risk signals.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Was a PyPI release yanked? Exact version check with the maintainer's reason, upload date and file count.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Solana wallet activity: recent transactions for any address, each with the wallet's SOL and token balance changes, the fee, failures and the programs invoked. Use when you need to answer: What has this Solana wallet been doing? Read from the chain and summarised by us.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Mail servers of a domain by priority, whether each resolves to an address, and null-MX or implicit-MX handling.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Compare package sizes by price per 100 g, 100 ml or per item across mixed units, ranked with savings.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Scores the bankability of a project finance structure for infrastructure deals, returning a 0-100 score. Weighs debt service coverage, debt-to-equity leverage, offtake contract quality, construction risk, and sponsor strength; returns grade, recommendation, metrics, and drivers. Use it as a project finance score API, infrastructure finance structure quality check, or DSCR leverage offtake construction-risk calculator.
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.
npm package weekly download count
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Resolve a Basename (name.base.eth) to its Base address, or an address to its primary Basename, checked both ways so a reverse name is only returned when it resolves back. Use it to turn a human name into a payout address or to label an address. Avoids hand-written ENS-style namehash and resolver calls. Query: ?name=jesse.base.eth or ?address=0x...
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
One call for an address on Base: USDC balance, ETH balance, verified primary Basename, transaction count (nonce) and whether it is a contract. Use it to profile a counterparty or payout wallet before interacting. Replaces four or five separate reads with a single priced request. Query: ?address=0x...
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Diff of two short texts into equal, deleted and inserted lines or words, with counts and a similarity ratio.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Base mainnet head: latest block number, block age in seconds, base fee and gas price in gwei. Use it to check the chain is advancing and to estimate fees before sending a transaction. One small JSON read instead of several raw RPC calls and unit conversions.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Head-on collision of two masses: velocities after impact, momentum and kinetic energy lost, elastic to perfectly inelastic.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
What is AAPL trading at this second? Live quote with daily change and open/high/low, multi-source with the provider named in every response — the number no trained model knows. [Wrapper over a free public source (Finn...
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Area, perimeter and centroid of a lat,lon polygon using spherical excess on the WGS84 equal-area sphere.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Convert a UTM (18T 585628 4511322) or MGRS (18TWL8562811322) reference to WGS84 latitude/longitude.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
DAO governance proposals from Snapshot by space - status, votes, voting power, quorum met, leading choice and its share of the vote, with links to each proposal
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Get historical cumulative volume data for a market
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Clean page text for up to 3 URLs in one call via Exa's index + live crawl — works on JS-rendered and bot-walled pages that direct fetch can't read. Returns title, author, published_date and text per URL, with per-URL status. Pairs with /exa/search (search → contents). No API key, pay per call on Base or Solana.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
USDA texture class calculated from SoilGrids sand, silt and clay fractions. The coordinate is validated against the Natural Earth boundary for Portugal; 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.
Mean SoilGrids coarse-fragment volume for the 0-5 cm layer. The coordinate is validated against the Natural Earth boundary for Greece; 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.
Screen a name against the US Consolidated Screening List, which merges the OFAC SDN and non-SDN lists with the BIS Denied Persons, Entity and Unverified lists and the State Department debarred lists.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Use when an agent needs the top x402 services tagged 'ai-agent'. Returns Retired route /in-ai-agent: now serves the live /in-ai ranking, the top 25 x402 services tagged 'ai' by 30-day unique paying wallets.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
What current space weather means for HF radio, GPS accuracy, satellites and power grids, with the level driving each.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
A dimly lit subterranean space shows a stone column illuminated from above beside a wooden crate with metal bracing. The rough earthen...
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Dimensional weight and billable weight for a parcel from its size and actual weight, with an overridable carrier divisor.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Split a domain or URL host into labels, registrable domain and subdomain; convert punycode and flag lookalike traits.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
A Polymarket trader's portfolio by wallet address: total portfolio USD value plus open positions (market title, outcome, size, average vs current price, current value, and unrealized PnL). For tracking a wallet's prediction-market book. Read-only from Polymarket's Data API.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
ILLUSTRATIVE historical and parametric Value-at-Risk and expected shortfall from a return series you supply. Not advice.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Current time API: the time right now in any IANA timezone (America/Chicago, Asia/Tokyo...) — local ISO timestamp, UTC ISO, unix epoch, human-readable string, and day of week. The sanity check every scheduling, logging, and coordination agent needs. Deterministic and instant.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Bulk is email hosted by hey: 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 2026-10-21.
Stablecoin peg deviation and depth, per issuer.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Live cross-asset market data: the top coins ranked by market cap with price, market cap, 24h change and volume (CoinGecko). The global snapshot an agent reads before trading — our other price tools are Base-token-address based; this is the whole market. Pass limit= (up to 100) and vs= (usd/eur/…). Not financial advice.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Search Wikipedia article titles by words: exact titles, one-line descriptions and thumbnails, to disambiguate a topic.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Space weather alerts, watches and warnings NOAA issued in the last 1-72 hours, counted by type with headlines.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Pre-trade risk check for any ERC20 on Base, Ethereum, Polygon, Arbitrum or Optimism, straight from the deployed bytecode and live state. Detects mint, pause, blacklist, upgradeable proxy and mutable buy/sell tax powers, and reports whether ownership is renounced. Unlike LLM-written verdicts this returns the EVIDENCE - the exact selector found and its byte offset - so an agent can apply its own policy. Deterministic: same contract, same answer.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Parse a URL query string into keys and values (repeats grouped) or build one from a JSON object, with duplicates flagged.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Estimated one-rep max from weight and reps by the Epley, Brzycki, Lombardi and O'Conner formulas, with a percentage table.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Current solar X-ray class (A/B/C/M/X) and the latest flare: begin, peak and end times and peak class.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Tip and even bill split in exact cents: tip on subtotal or total, shares that add up, optional round up to whole dollars.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Probe endpoint. POST a signed Nano state block to broadcast it.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-21.
Exact integer-minor-unit period arithmetic with unknown propagation; never treat missing amounts as zero.
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.
Search registered clinical trials by condition, intervention, sponsor or free text, filtered by recruitment status and phase.
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.