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Showing the 23,157 endpoints that answered our last unpaid knock, most recently knocked first. The catalogue holds 90,752 listings in all: 22,342 charge, 874 answered without asking, 9,962 did not reach a working endpoint, and 57,574 we have never knocked on. Type something above to search all of them.
Has this place been built on or cleared in the last 12 months? Sentinel-2 satellite change detection for any lat/lon: NDVI/NDBI deltas, change direction, confidence and the scene-by-scene evidence.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Read SMX (Space Markets Stage 1) testnet event markets on space milestones, e.g. Starship Flight 14 and The Moon Race, on Base Sepolia (eip155:84532): list markets, market detail, or mid price in cents. Each read costs $0.01 test USDC via x402. Test collateral has no monetary value. This API does not place orders: trading is wallet-signed from your own wallet per https://smx.space/skill.md. Docs: https://smx.space/llms.txt
Unpriced in the listing, which is not the same as free. it demanded payment when we knocked, on 2026-10-24.
Read SMX (Space Markets Stage 1) testnet event markets on space milestones, e.g. Starship Flight 14 and The Moon Race, on Base Sepolia (eip155:84532): list markets, market detail, or mid price in cents. Each read costs $0.01 test USDC via x402. Test collateral has no monetary value. This API does not place orders: trading is wallet-signed from your own wallet per https://smx.space/skill.md. Docs: https://smx.space/llms.txt
Unpriced in the listing, which is not the same as free. it demanded payment when we knocked, on 2026-10-24.
Market & brand sentiment for any keyword, brand, ticker or product: analyses the sentiment of web & news content mentioning it and returns an overall label (positive/negative/neutral/mixed), a net sentiment score (-1..1), positive/negative/neutral shares and an emotion breakdown (anger, happiness, love, sadness, fun).
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Medicare plan guidance / Original Medicare vs Medicare Advantage, Medigap, and Part D comparison with enrollment timing to pick the right coverage for an individual. For Medicare and senior-care agents — informational, not insurance advice.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Skim: x402 ecosystem feed — new services and price changes across the public x402 registries, as structured items. Refreshed on a 15-minute cycle (stale served if a registry is down); poll as often as you like.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Watch a URL for 6 hours: signed callbacks when its verdict changes
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
SociaVault API proxy — instagram-post-info. Query/body matches https://docs.sociavault.com/api-reference/openapi.json. GET/POST per route; x402 per call. $0.014 USDC per request.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
SnowSignals phase updates — pay-per-row market-phase reading
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
SociaVault API proxy — facebook-marketplace-location-search. Query/body matches https://docs.sociavault.com/api-reference/openapi.json. GET/POST per route; x402 per call. $0.014 USDC per request.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
SFtunes catalog for agents: index of public mixtapes and public Top 10 lists, or one item with liner notes and music-service links via ?id=<uuid> (tape) or ?id=top10-<handle> (a person's Top 10 + Side B).
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Accès à une session de méditation.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Email address check: verdict (deliverable_likely/risky/invalid) with reasons from syntax, MX/A records, disposable-provider list, role address, free provider, typo suggestion, SPF/DMARC/DKIM and domain age. Use when an agent is about to send to, sign up, or accept an email address and wants to avoid bounces, throwaway or mistyped addresses. One address per call; no SMTP mailbox probing.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Store payload to Shared Hold boundary - 0.005 USDC per successful hold
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.
Fetch a public web page and return clean markdown, title and metadata. Respects robots.txt.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Token security heuristics: honeypot signals, proxy detection, LP data. Trading agents use this to avoid rugs.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Render any public web page in headless Chrome and return it as an A4 PDF (base64 JSON, or raw PDF with ?raw=1). Use when an agent needs a printable/archivable copy of a web page, a receipt or an article to store, attach or send.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Render any public web page in a real headless Chrome and return a PNG/JPEG screenshot (base64 JSON, or raw image with ?raw=1). Viewport up to 1920x1920, optional full-page capture up to 8000px tall, optional wait for late content. Use when an agent needs to see what a page actually looks like (visual check, JS-rendered content, layout/UI review, evidence capture, feeding a vision model) rather than its text.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Website trust check: verdict (trustworthy_likely/caution/risky) with reasons from domain age (RDAP), DNS (A/MX/NS), HTTPS reachability and redirect chain, security headers, phishing/malware list snapshots, brand lookalike/typosquat detection, tech fingerprint and page title. Use when an agent is about to open, click, submit credentials or payment to, recommend or trust an unfamiliar URL or website.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Solana wallet profile: verdict (established/new/suspicious/inactive) with reasons from SOL balance, token holdings, wallet age (first tx), 24h/7d activity, program-account detection, bot-like pattern heuristic and OFAC sanctions match. Use when an agent is about to pay, airdrop to, trade with, trust or whitelist an unfamiliar Solana wallet. Not financial advice.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Convert text into a URL-safe slug: transliterate accents, apply a locale character map, and join with a separator.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Viewport or full page, optional element selector, dark mode and cookie banner removal. Returns base64 image plus a short lived fetch URL, byte size, load time and the final HTTP status of the page.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Discover newly surfaced meme tokens on Solana from DexScreener boosted (PAID-promoted) and newly profiled tokens, enriched with price, liquidity, volume. Discovery starting point; check /api/safety, /api/holders, /api/bundle before trading. Body: { limit? }.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Crypto market tick — BTC, ETH, SOL live price + 24h change, Fear & Greed index, and a deterministic regime verdict (RISK_ON / DRIFT_UP / CHOP / DRIFT_DOWN / RISK_OFF) in ONE $0.05 call. Built for agent loops that need a cheap market pulse every cycle; escalate to /api/scan/crypto ($2) for the institutional deep scan with technicals, derivatives and a directional call. 60s freshness, no LLM in the path.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Real-time signals feed for AI agents. Covers economic indicators, central bank policy, commodities, equities, AI, semiconductors, and geopolitical risk. Structured signals with credibility scoring. Pay-per-request via x402; free discovery available.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Historical revealed signal snapshots (commit-reveal hash chain): past BUY/SELL/HOLD + confidence across major pairs, each with its verifiable hash. Bulk pay-per-call data for AI agents (USDC on Base). Free preview: GET /signals/preview
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Market-regime state (RISK_ON / RISK_OFF) from a provable chain, plus whether it changed since the regime you last saw. Cheap poll endpoint for AI agents to react to regime flips (USDC on Base). Free preview: GET /signals/preview An unavailable regime feed returns 503; you are never charged for an error.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Read SMX (Space Markets Stage 1) testnet event markets on space milestones, e.g. Starship Flight 14 and The Moon Race, on Base Sepolia (eip155:84532): list markets, market detail, or mid price in cents. Each read costs $0.01 test USDC via x402. Test collateral has no monetary value. This API does not place orders: trading is wallet-signed from your own wallet per https://smx.space/skill.md. Docs: https://smx.space/llms.txt
Unpriced in the listing, which is not the same as free. it demanded payment when we knocked, on 2026-10-24.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Signed full 50-state plug-in solar legality dataset. Free preview: GET /solar-legality/preview If the signer is unavailable it returns 503; you are never charged for an error.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Signed plug-in solar legality record for one US state. Free preview: GET /solar-legality/preview A missing or unknown state returns 400 or 404; you are never charged for an error.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
SnowSignals phase boundary — pay-per-row market-phase reading
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
SociaVault API proxy — facebook-marketplace-search. Query/body matches https://docs.sociavault.com/api-reference/openapi.json. GET/POST per route; x402 per call. $0.014 USDC per request.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Email domain check: whether a domain can receive mail (MX/A, null MX), is disposable or a free provider, likely typo, SPF/DMARC/DKIM posture and registration age. Use when an agent needs to vet a company or sender domain rather than a specific mailbox. One domain per call.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Bundle/sniper detection for a Solana token via Helius: groups launch buyers by slot to flag coordinated buys (bundle/sniper clusters). Body: { mint }.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Solana token safety check: verdict (safe/caution/avoid), 0-100 risk score and reasons from mint/freeze authority, Token-2022 extensions, holder concentration, age and DEX liquidity. Use when an agent is about to buy, swap, accept or recommend an unfamiliar Solana token. Not financial advice.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Reader Pro: fetch a public web page and return structured data, no LLM: OpenGraph/meta tags, parsed JSON-LD (schema.org), HTML tables as row objects, deduped internal/external links, emails/phones/social profiles, heading outline, images with alt text, plus optional CSS-selector fields.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Every PC game currently free to KEEP (claim once, own permanently) across Steam, Epic Games Store, GOG and itch.io. Each entry verified against that store's own API before publication. Per-store status distinguishes "verified: nothing is free" from "could not check", so a zero is a fact rather than an absence of data. Self-verifying: the version field is a SHA-256 of the payload's own content.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
A paid sandbox for x402 clients. Pay $0.10 and receive your own settled payment back — payer address, amount, network and settlement transaction — so a test can assert your 402, sign, retry and settle loop works against a live facilitator. Scenario parameters exercise the failure paths for free: prove your max-price guard fires, that you abandon an expired quote, handle a rejected payment, and retry a failed settlement.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Rooftop solar estimate for a US address: system size, monthly and annual production (NASA POWER), utility rate (EIA-861 2024), installed cost (LBNL Tracking the Sun), payback, 25-year savings and the 2026 federal credit status.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Returns trending tokens across the entire blockchain for a specified activity window and optional category.The size of the increase in active wallets over the activity window determines the token's trending rank.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Daily energy balance and straight run-down from the figures supplied. Solar input is caller data in watt-hours per day; nothing is fetched and no weather is assumed. Time to empty means time to the reserve floor, not to zero. Idle draw and conversion efficiency apply to AC loads only. Ageing, temperature and Peukert behaviour are not modelled, which matters for lead acid far more than for LiFePO4.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Computes a transparent planning estimate for space-heating demand. The method is not DIN, VDI, GEG or PHPP and must not be used as regulatory proof. It combines transmission heat loss from each envelope component, ventilation heat loss from heated volume and air changes, monthly heating degree days from the nearest DWD 1991-2020 temperature-normal station, stated internal gains and optional domestic hot water.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Integrates the supplied current over time by the trapezoidal rule, so the result is only as good as the sampling interval; gaps longer than the stated max_gap_seconds are excluded and reported. Sign convention: positive current is charging, negative is discharging. Internal resistance is estimated from the largest current step in the series and is a rough figure, not a measurement under defined conditions.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Per-country sovereign economic / default-risk score (?country=<name or ISO3>)
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Space-weather alerts — newest bounded NOAA SWPC geomagnetic and solar-flare messages with deterministic product-code kinds, complete-message digests, and freshness.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Current space-weather conditions — normalized NOAA SWPC Kp, solar wind, magnetic field, and X-ray flux used for solar-flare monitoring, with observation times and freshness.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Space-weather forecast — normalized one-to-three-day NOAA SWPC geomagnetic Kp-index periods labeled observed, estimated, or predicted.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Renders JavaScript-heavy SPA pages in real headless Chromium via Cloudflare Browser Rendering, waits for network-idle / selector-ready, strips nav/footer/script chrome, and serializes the fully-rendered DOM into clean, LLM-ready Markdown.
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.
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.