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Showing the 23,638 endpoints that answered our last unpaid knock, most recently knocked first. The catalogue holds 91,887 listings in all: 22,811 charge, 889 answered without asking, 10,238 did not reach a working endpoint, and 57,949 we have never knocked on. Type something above to search all of them.
solar-position-oracle: Solar Position & Day Length Oracle – geocoded sunrise/sunset, declination, and UTC day-of-year for any city.
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.
Look up an Irish company by exact CRO company number. Returns legal name, status, registered address and source provenance as JSON. No name search. Synthetic fixture 00000000 on Base Sepolia for free integration testing.
Unpriced in the listing, which is not the same as free. it demanded payment when we knocked, on 2026-10-24.
Use when an online store needs checking for AI shopping agents (ChatGPT checkout/ACP, Google UCP, Perplexity, Claude): 0-100 score, readiness level, bot access to product pages, Product structured data (price, availability, GTIN), return and shipping data, product sitemap, platform, and UCP/ACP/MCP discovery files, with a prioritized fix list. Takes a store domain or product URL. Errors: 400 bad_input, 403 robots_disallowed, 502 unreachable. Failed calls are not charged.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Live market-state data for one crypto pair: BUY/SELL/HOLD state + confidence from a multi-timeframe engine. Machine-readable, ECDSA-signed. Input data for AI finance agents (USDC pay-per-call). Free preview: GET /signals/preview Bad input (unknown pair) returns 400; upstream outage 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.
Recase a string into camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE, dot.case, path/case, Sentence case, Capital Case, Train-Case, no case, Title Case, or plain UPPER/lower — the word boundaries are detected regardless of the input casing.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Decode a base64, base64url, hex, base32, or URL percent-encoded string back into UTF-8 text. Malformed input for the chosen encoding is rejected as a clean 400.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Diff two texts. The default `unified` mode returns a unified-diff patch string; `lines`, `words`, and `chars` modes return a structured array of added/removed/unchanged parts.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Check up to 20 launch-directory domains at once: our Oct 2026 record (live/dead/moved, free option, account, submit URL) for known ones, and a live HTTP check right now for unknown ones. Pass domains comma-separated.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Launch directories from 11 popular public lists that were dead, unreachable, erroring or redirecting to another site on our Oct 2026 live check (DNS re-checked over DoH). Drop them from a launch plan. Optional filter by status kind.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Search 588+ curated Claude Code skills by keyword. Returns top matching skills with full markdown content, quality score, categories, and source repo. Optional filters: min_quality (1-10), categories array, limit (default 5, max 10). Useful for AI agents that need to discover and load specialized skills on-demand without bundling the full 15MB skill library.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Text to SVG code in about 8 seconds. Best for simple icons, charts, patterns and flat backgrounds. Returns clean SVG, each part its own layer.
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.
Full supply chain report — shipping rates, BLS PPI, NY Fed GSCPI, AI summary
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Actionable trading verdict (ENTER_LONG/ENTER_SHORT/WAIT) for one asset from our live engines. Call for a per-asset entry and exit plan
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Decide whether to interact with an AI agent at all: Can I interact with this agent? INTERACT/CAUTION/AVOID verdict with confidence for conversations, task delegation and data copying — not just payments. Shareable verdict page in every response
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Synapse Lounge x402 access and service manifest
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.
StatEdge referee analysis — official tendencies, foul rates, pace impact, and betting implications
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Swellmeter Trending: Google trending searches for 30 countries, with the history the feed drops.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Swellmeter Trending: Google trending searches for 30 countries, with the history the feed drops.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Swellmeter Trending: Google trending searches for 30 countries, with the history the feed drops.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Validate an email address or domain before outreach: syntax, MX records, SPF and DMARC, disposable and role-based detection, free-mail flag and domain age.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Look up a US federal contractor in SAM.gov by UEI or legal business name: registration status and expiration, CAGE code, exclusion flag, NAICS codes and business types.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Where did this address's money come from, and would it have arrived if the address had not sent it first? Give any Base address, get a live read: distinct payers, how many of them this address funded inside the window, the USDC left once those are removed, and how many funded wallets sent back the exact amount they were given, and how fast. One seller in our weekly reading took in 339.20 USDC, and 338.70 of it was its own money coming back.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Party/social board-game finder by group size, vibe, and setting — including drinking-game and family-mixed-ages fit, grounded in current web sources (never BoardGameGeek data).
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
AI-readiness audit for a URL: checks schema.org structured data, crawlability (robots.txt, meta robots, canonical) and llms.txt presence, then returns a 0-100 score with specific recommendations. Cached for 24 hours per URL.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Best solo-mode board games by preference, with an honest solo-variant-quality read (designed-for-solo vs. weak bolt-on), grounded in current web reviews (never BoardGameGeek data).
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
RSS TCG restock-signal feed from watchlists. Pay $0.02 USDC on Base via x402.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Read-only access to Sei mainnet (pacific-1) on every surface a Sei node exposes: the EVM JSON-RPC methods, the CometBFT RPC (as JSON-RPC or GET routes such as /status and /block) and the Cosmos SDK LCD (GET /cosmos/... and /sei-protocol/...). Served by the Pocket Network decentralised supplier set. Pay per request in USDC; no account, no API key.
Unpriced in the listing, which is not the same as free. it demanded payment when we knocked, on 2026-10-24.
Unpriced in the listing, which is not the same as free. it demanded payment when we knocked, on 2026-10-24.
What exactly is this aircraft? Resolve an aircraft by FAA N-number and return normalized identity, registration, manufacturer, model, serial and related identity evidence where available.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Agent2Agent (A2A) protocol JSON-RPC endpoint supporting SendMessage. Authorizes up to $0.75, the highest skill price; settlement charges the invoked skill's actual price. Base (EVM) only. The skill catalog and per-skill pricing are in /.well-known/agent-card.json.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
GitHub repository intelligence: stars, forks, open issues, language, license, last push date, latest release version and date, topics, and whether the repo is actively maintained. Input any GitHub repo as 'owner/repo' or a full GitHub URL. Use before wiring a new library as a dependency, when evaluating a project for acquisition or integration, or when you need to assess community health (stars/forks ratio, issue velocity, maintainer recency). Entity-parametric — one repo per call, parallel-saf
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Wallet snapshot: deterministic on-chain stats for one address across major EVM chains — transaction count, token-transfer count, wallet age (first-tx date), native balance, account type, and risk-flag count. Lite-tier preview (agent-cap friendly); no investigation narrative or approval enumeration. 100% deterministic, no LLM.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Citation-verified crypto wallet tax review: submit wallet addresses + jurisdiction, get a professional report grounded in primary tax law (statutes, rulings, case law) with machine-verified citations a CPA can check and sign. Law-synthesis layer, not a cost-basis calculator. Covers US, UK, Germany, India, Canada, Australia, Japan, Brazil, Singapore.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Dark web intelligence from Telegram: marketplace listings, forum chatter, access broker posts, credential shops, Tor site activity. Filters: severity, min_confidence, since, tag, sector, country, organization, limit, offset.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
SWARM Read Page - Retrieve the content of a URL as clean, LLM-ready text (headings with #, lists with -; menus, scripts, styles and markup removed). Use when an agent needs to read a web page, article or docs page without paying model tokens for raw HTML: on 15 public pages we measured, the text was a median 97% smaller than the HTML (about 67,000 fewer tokens per page). Requires `url`; HTML or text up to 3 MB. Not billed if the page cannot be read. $0.002.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
65000 TRON energy for USDT (TRC-20) transfers, 1h rental, delivered to the TRON address in the quote. Pay in USDC on Base.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Search explainably qualified EU solar and battery tenders from an explicitly dated TED snapshot
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Pay-per-read pieces by independent publishers. Find one by question first: POST https://tenjin.blog/api/search is free and returns payable candidates or an honest MISS. The 402 carries a free preview; pay it for the full text JSON. Agent guide: https://tenjin.blog/llms.txt. Full catalog: https://tenjin.blog/.well-known/x402
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Pay-per-read pieces by independent publishers. Find one by question first: POST https://tenjin.sh/api/search is free and returns payable candidates or an honest MISS. The 402 carries a free preview; pay it for the full text JSON. API reference: https://tenjin.sh/openapi.json. Full catalog: https://tenjin.sh/.well-known/x402
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
AI-stack CVE intelligence. Filters fresh security disclosures to vendors and products in the AI inference, agent framework, training, vector DB, model gateway, and MCP tool layers. Each paper carries a tf_ai_category tag and a severity_rank, sorted with exploited-in-wild and critical-severity first. 99.8% of underlying data is from GitHub Security Advisories (CC BY 4.0).
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Ranked market anomalies: every tracked precious-metals and energy series scored by how far its latest reading sits from its own history — a composite of level extremity, 30-day z-score, and move velocity — sorted most-abnormal-first with record context. One call returns a scored anomaly watchlist that the free /snapshot omits. Optional ?limit=N for the top-N.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Is this CVE weaponized? Returns enriched threat intelligence with exploit status, CVSS, EPSS, CISA KEV, ransomware mapping, and urgency score from 7 correlated sources.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
COMEX warehouse inventory: registered, eligible and total levels plus the per-depository breakdown, by metal and date. Quantities are in CME's reporting unit per metal: troy ounces for gold/silver/platinum/palladium, SHORT TONS for copper, metric tonnes for aluminum/zinc/lead. Extracted from CME's daily warehouse PDFs.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Fetch a public URL once, right now, and evaluate a condition against it (keyword, CSS selector, JSON path, price threshold, content hash, or HTTP status). Returns matched:true/false with the extracted value and a short evidence excerpt. Synchronous; typical response under 3 seconds. $0.01 per check.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Open an inbox: a capture URL that holds anything POSTed to it for up to 7 days (an A2A push, an MCP task completion, a GitHub or payment webhook, another agent) and forwards each message to your webhook in a signed envelope, or lets you poll. The durable recipient a finished session cannot be. Up to 200 messages of 64KB, optional shared-secret header. One-time $0.10.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Startup/SaaS/AI-tool launch directories re-checked live Oct 2026, filtered by category and free option. Each row: live status, submit URL, free/badge/queue/paid, lowest price, account needed, captcha, Tranco rank. Up to 50 rows sorted by popularity.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Get real-time Best Bid/Ask for ALL available FX pairs in a single call. Multi-source aggregated from multiple institutional LPs with 62-88% spread improvement. Returns 14 FX pairs including majors, crosses, and XAUUSD gold. Each pair includes quality metadata and spread improvement vs single source. AI agent API for portfolio dashboards, multi-pair monitoring, and FX market overview. Accepts USDC payments on Base and Solana
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
List all available FX symbols with their current quality state and source count. AI agent API for discovering available instruments before subscribing to tick data. Accepts USDC payments on Base and Solana
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Check if an AI agent is alive right now: Is this agent alive? ALIVE/DEGRADED/DOWN verdict with uptime, latency and a CALL/SLOW/AVOID action before you route work to it. Shareable verdict page in every response. No account, no API key
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.