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Showing the 18,244 endpoints that answered our last unpaid knock, most recently knocked first. The catalogue holds 75,516 listings in all: 17,686 charge, 615 answered without asking, 8,711 did not reach a working endpoint, and 48,504 we have never knocked on. Type something above to search all of them.
POST any JSON payload to any webhook URL with custom headers and method. Let your agent trigger downstream systems in one call. Pay per call with USDC (x402) or credits - archtools.dev
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-20.
Web search with structured results - title, URL and snippet - ready for agent consumption. Fresh results in one POST. Pay per call with USDC (x402) or credits - archtools.dev
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-20.
AI inference price arbitrage — every provider serving a given model with live input/output $/Mtoken, blended 3:1 cost, cheapest-vs-dearest spread multiple, quantization caveats. Same open-weights model spans 2-5x across providers; for agents that buy inference this is self-referential spend recovery. Live listings, no LLM.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-20.
Prediction market cross-venue arbitrage — matches live Polymarket contracts to Kalshi contracts for the same events: both leg strategies, gross cost, Kalshi taker fee, net edge per contract, ARB_CANDIDATE / CONVERGENCE_GAP / ALIGNED verdicts. Optional ?query= topic filter. Deterministic order-book math, no LLM.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-20.
Whether social posts led or lagged the price move, measured. Post times are recovered arithmetically from X snowflake ids. In our sample posts lagged the move, so this is a timing disclosure and never an early-warning or entry signal.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-20.
Seven-day quality audit of already-collected social evidence: citations, source diversity, fallback rate, official-source hits, freshness, and confidence diagnostics. Delivery reads the existing cache only and makes no additional Grok or X API request. Evidence-quality disclosure, not sentiment alpha, not a trading signal, and not a market recommendation.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-20.
Early Launch Risk Watch. Live risk monitoring for early Robinhood-chain launches on our watchlist: price, change, retrace from high, listing age, and a survival verdict with the specific risk axes that tripped (shallow liquidity, holder concentration, top-holder exit, whale outflow). Loss-prevention monitoring, not an entry signal, and OK is never a safety certificate.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-20.
ERC20 allowance and token approval check on Ethereum: how much a spender (Permit2, a router, a bridge) is approved to move from an owner wallet, with unlimited-approval detection.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-20.
Keyword extraction and named entity recognition (NER) from text: ranked keywords plus people, organizations, locations, dates, money and products. Any language, clean JSON output.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-20.
Wallet balance and ERC-20 token balance on Base: live ETH, USDC and up to 5 ERC-20 balances of any address, read from Base mainnet. Pre-flight funding check before a payment or a swap. No API key.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-20.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-20.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-20.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-20.
Fetch any public web page and return clean, readable Markdown with navigation, ads, and boilerplate stripped. For agents that need article text or documentation as Markdown.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-20.
WEB SEARCH for keyless agents — POST {query} and get LLM-ready results: title, url, extracted content snippet, relevance score, plus a direct answer synthesized from live results. Options: max_results (1-10, default 5), topic (general|news). No API key, no account — the x402 payment IS the auth. Query up to 400 chars.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-20.
ANTHROPIC-COMPATIBLE /v1/messages — Claude Haiku 4.5 through the exact Anthropic API dialect: same request/response shape, no Anthropic account, the x402 payment IS the auth. Point an Anthropic SDK's base_url at https://api.webbersites.com and pay per call. Caps: 16,000 input chars, 1,024 output tokens (max_tokens clamped), text-only, no streaming.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-20.
Next funding payment ETA for one crypto perpetual on one venue, with the current indicative funding rate alongside — when the next settlement lands and where the rate stands now. Entry-timing input for funding-arb and carry trades. Not a payment forecast: the endpoint takes no position side or size, and the rate can move before settlement.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-20.
Funding-rate sign-change detection for one crypto perpetual — every positive↔negative flip across venues inside a lookback window, each with its venue, hour and the rates either side of the change. Raw events for spotting funding-regime turns in funding-arb and carry positioning: it reports the flips, it does not classify them as sustained or transient.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-20.
Per-venue funding carry for one crypto perpetual: raw funding_rate, annualized_carry_pct, and contango/backwardation structure from the funding sign. What holding this perp pays or costs you per year, venue by venue, across tracked CEX and DEX venues.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-20.
Full US Treasury yield curve in one call — every tenor from 1-month to 30-year (1M, 3M, 6M, 1Y, 2Y, 3Y, 5Y, 7Y, 10Y, 20Y, 30Y) with current rates, key spreads, and recession inversion flags (10Y-2Y and 10Y-3M) as JSON. Powered by FRED (Federal Reserve). Use for: yield curve analysis, recession signal / curve inversion check, interest rate term structure, bond market monitoring, macro trading. $0.005 USDC per call.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-20.
US macroeconomic snapshot in one call — current inflation (CPI YoY), core PCE, Federal Reserve interest rate (fed funds), 10Y/2Y Treasury yields, yield curve, unemployment, and GDP growth as JSON. Powered by FRED (Federal Reserve Economic Data). Use for: macro dashboard, economic context for trading decisions, rate environment check, market briefings. $0.005 USDC per call.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-20.
Teardrop get_token_price: Get current price, 24h change, market cap, FDV, and volume for one or more crypto tokens. Accepts ticker symbols, full names, or CoinGecko IDs; unknown symbols resolve automatically. Batch up to 50 tokens. Reuse price_usd/value_usd already returned by get_wallet_portfolio instead of re-calling.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-20.
Teardrop get_token_approvals: Block-accurate audit of ERC-20 allowances for a wallet across curated DeFi spenders (Uniswap, Aave, Compound, 1inch, 0x, OpenSea) on Ethereum or Base. Flags unlimited approvals by risk level (high=unknown spender, medium=trusted protocol, low=bounded). Use before swaps or after security incidents to detect active exploit vectors.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-20.
Teardrop get_protocol_tvl: Get Total Value Locked for one or many DeFi protocols from DeFiLlama: current USD TVL, 7/30-day change, fees and revenue when reported, per-chain breakdown, and optional daily historical series. Batch multiple protocols via protocols=[...] - batch responses return one compact economic summary per protocol; single-protocol calls add chain and historical detail. Supports 3,000+ protocols; use DeFiLlama slugs ('aave-v3', 'uniswap-v3'); common aliases are auto-corrected.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-20.
Historical ST-IM forward return distribution series for a symbol. Use /v1/meta/stim for ST-IM provenance, base-period context, and interpretation limits.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-20.
Latest published STIM Select list using the documented three-horizon ST-IM lower-bound criteria and prob13wk publication threshold.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-20.
Latest base ST-IM selection universe ranked by prob13wk descending, without the published STIM Select threshold filter.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-20.
List posts from one specific LinkedIn company page by URL (not a keyword search — use linkedin.posts.search.list to search across public posts).
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-20.
Search Reels site-wide by keyword (not scoped to one profile — use instagram.profile.reels.list; not trending — use instagram.reels.trending.list; not audio-page — use instagram.audio.reels.list).
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-20.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-20.
Search Instagram profiles by keyword.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-20.
Individual arena strategy signal
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-20.
Single-fact: ZEC supply by value pool (transparent/sprout/sapling/orchard/ironwood/lockbox) + NU6.3 "Ironwood" migration readout — pool balance, Orchard remainder, and migration % once the quantum-recoverable Ironwood pool is live (mainnet target ~2026-07-21). The turnstile makes cross-pool flows public; this is the headline number. Sourced from a live operator-run zebra node.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-20.
Single-fact: Zcash mempool count + bytes.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-20.
Polymarket whale wallet API for agents. Returns whale trades, wallet metadata, tier, score, and activity for one tracked 0x wallet.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-20.
Polymarket API and prediction market API for agents. Returns prediction market signals, market snapshots, order books, and ranked opportunities.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-20.
Composite token buy-risk verdict
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-20.
ESG score intelligence for ESG-investing and research agents. Explains MSCI, Sustainalytics, ISS, and Bloomberg ESG methodologies, how raters diverge, and what drives score changes.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-20.
SASB sector materiality for ESG-investing and sustainability agents. Returns industry-specific ESG topics, peer benchmarks, regulatory hotspots, and what investors and raters focus on for a given sector.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-20.
Screenshot any web page: give a URL, get a 1280x800 JPEG of how it renders in a real browser, with its SHA-256, title and final URL. Use for visual checks, previews, archiving how a page looked, and showing a page to a vision model. $0.01 per capture; a page that fails to load or errors is not charged. For signed, timestamped evidence use /attest instead.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-20.
Use when you need to know if an email address is real and deliverable before signup, outreach or onboarding: syntax, live MX routing, 9,000+ disposable domains, role addresses, free providers, typo suggestions (gmial.com to gmail.com) and SPF/DMARC. One verdict: deliverable, risky or undeliverable.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-20.
Use when the user asks for the energy label of a Dutch home: the officially registered label (A++++ to G), registration and expiry date, building type and energy index, or a clear 'none registered'. Input: postcode + house number. Source: RVO EP-Online, the Dutch national register.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-20.
Use when you need to check an EU EORI customs number: live validation in the European Commission's EORI service, registered and valid or not, with the trader's name and address when published. All EU member states; GB numbers are not covered.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-20.
All active NBA players for the current season — name, position, jersey number, and team.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-20.
NBA game schedule for any date — matchups, scores by quarter, teams, and game status.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-20.
Bitcoin momentum. 90-day trend strength, percentile rankings, 200-day MA and an RSI-style strength reading. Price trend data for research agents. A paid call serves today or any ?date= on record.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-20.
Bitcoin miner health. Hash ribbon, hashprice thermometer, production cost vs price, energy stress. Mining sector data for research agents. A paid call serves today or any ?date= on record.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-20.
US oil and gas stocks. EIA weekly commercial crude stocks and Lower 48 gas storage against the same week in the prior five years, with the week's change, the levels that would change each label and the next EIA report dates; WTI, Brent and Henry Hub spot prices, the Brent to WTI spread and WTI 30 day realised volatility. Energy inventory data for commodity research agents. A paid call serves today or any ?date= on record.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-20.
International / non-US filing search by stock exchange — LSE, Euronext, HKEX, SGX, ASX, TSX, BSE/NSE, KOSPI, B3, JSE, Tadawul, XETRA, EDINET and more beyond US EDGAR. Regulatory filing intelligence using correct local terms (IFRS/local GAAP), with cross-listing/ADR notes, for global investing and research agents.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-20.
10-K / 10-Q filing summary — plain-language brief of an annual or quarterly report: key risks, financial highlights (XBRL facts), management tone, and red flags distilled into a fast, decision-ready read. Covers US EDGAR plus international filings, for investing and equity-research agents.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-20.
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.