Every agent-payable API.

VN individual stock quote — pass ?symbol=VIC (Vingroup), VNM (Vinamilk), VCB (Vietcombank), etc. HOSE-listed blue-chips, delayed quote

VN Market Prices API — USD/VND rate and gold prices (SJC, DOJI)

Vietnam residential water tariff structure (HCMC/SAWACO and Hanoi/HAWACO) — tier structure and official lookup channels, no VND figures (source data inconsistent, see notes)

VN30 proxy — VFMVN30 ETF tracking Vietnam's top 30 HOSE blue-chip stocks, delayed quote

Returns verified, citation-backed facts about new AI model releases, benchmark scores, and protocol changes, each with source URLs and confidence.

DripMetricsAI (api description at https://dripmetrics.ai/) provides on-demand crypto market microstructure and risk metrics for agents and developers. Agents can pay per request via x402 and receive structured JSON metrics without subscriptions or API keys. Vol of Vol measures the volatility of realized volatility across sub-intervals. Discovery examples use the latest 30m window.

1h/24h realized volatility (stdev of consecutive 1-minute log returns) computed from our own on-chain mid observations for a monitored pair. Actual realized value over the window only -- not annualized, not a forecast. Descriptive statistics only; not investment advice.

Paid compressed relationship map connecting volcanoes, magma chambers, lava flows, calderas, supervolcanoes, volcanic soils, volcanic succession, hazards, and planetary volcanism.

Paid machine-readable Volcanic Landscapes registry connecting volcano formation, magma systems, lava flows, volcanic landforms, plate tectonics, volcanic ecosystem succession, volcanic soils, volcanism, and Earth systems relationships.

Volume-weighted average entry across fill price/size pairs. Call when averaging multiple fills into one book cost basis. Returns average entry and total size as deterministic JSON for $0.001 USDC via x402 on Base. First-party local math only—no RPC, live market feed, API keys, storage, or mediagen. Advisory only; the caller owns capital, risk, and production controls.

Volume-weighted average price from price/size samples. Call when benchmarking execution against your own print tape. Returns vwap and total volume as deterministic JSON for $0.001 USDC via x402 on Base. First-party local math only—no RPC, live market feed, API keys, storage, or mediagen. Advisory only; the caller owns capital, risk, and production controls.

WCAG 2.1 accessibility audit of a URL. Checks color contrast, alt text, form labels, ARIA roles, heading hierarchy, link text, language. Mostly deterministic.

Compute the WCAG 2.1 contrast ratio between a foreground and background color and report AA/AAA pass/fail for normal and large text.

Wall Street-level crypto intelligence: BTC option implied volatility (Deribit), hashprice (miner economics), multi-exchange funding spread, all on-chain metrics — institutional data without the $999/mo subscription 💎【付款后立得】实时结构化JSON，即插即用——无需注册，USDC一键支付即取数据。

Deterministic on-chain structural-safety report for a Base address: contract detection, verification status, proxy/owner/privileged-function analysis. Behavioral signals (age, activity, funding) not yet included. Keyless x402-native payment — no signup, no API key. Score 0-100, higher = structurally safer. See free real samples before paying: GET /samples/index.json

Wallet activity overview for an Ethereum address in one call: native ETH balance, transaction count, contract-vs-EOA detection, and first/last transaction activity with computed wallet age -- from Etherscan's V2 API. Bundles 5 separate lookups (balance, nonce, eth_getCode, earliest tx, latest tx) that a caller would otherwise have to stitch together from /wallet-balance, /transaction-count, and two /wallet-transactions calls. $0.02/call.

Wallet activity watch: new activity for a Base address since your cursor, so a scheduled agent only fetches what changed

On-chain ETH + USDC + ERC-20 balance for any wallet

Native ETH balance for any wallet address on Ethereum, from Etherscan's V2 API. Returns both raw wei and a rounded human-readable ETH amount. $0.01/call.

Wallet bundle: ETH balance + balance_usd + tx count + contract-code check (EIP-7702 delegated-EOA aware) for a Base mainnet address, in one call.

Wallet funding QR for your human: pass asset (usdc-base, tao, eth, sol, btc, ...), amount and destination wallet - get a prefilled Apple-Pay-capable onramp link (MoonPay) plus the QR as base64 PNG, ready to forward. Provider minimums enforced, address format validated. The purchase settles directly with the licensed onramp; this service never touches funds.

Wallet intelligence — address security check, on-chain activity classification (whale/bot/trader/retail), and risk scoring 0-100. No AI verdict prose — structured classification only. For AI-synthesized rationale, see /intel/wallet-report ($0.50). Accepts USDC payments on Base and Solana

Wallet Reputation (CDP-settled mirror) — a wallet's on-protocol work + settlement history from our records. Honest found:false when we have no history for it.

Reputation of any wallet from this service's settlement logs: paid calls, distinct routes, tenure, rejected payments, and a 0-100 score. Use it to size up a counterparty before an escrow or bounty.

Screen a wallet address across EVM, Solana, TON, or Bitcoin for known scam, exploit, drainer, or sanctions-list association before your agent transacts with it. Returns a risk level and specific risk flags. The recommended first call for any autonomous trading or DeFi agent before interacting with a new counterparty wallet.

Direct wallet sanctions exposure check on Base. Screens a wallet and a bounded set of recent transfer counterparties, with evidence, coverage, and explicit limitations.

Transaction count (nonce) for a wallet address on Ethereum -- how many transactions it has sent, from Etherscan's V2 API. $0.005/call.

Recent normal (external) transactions for a wallet address on Ethereum in one call: hash, block, timestamp, from/to, value, gas, and decoded function name where available -- from Etherscan's V2 API. Supports optional limit (default 25, max 100). $0.01/call.

Wallet enrichment for any EVM wallet (0x address or ENS name) in one call: 0-100 risk score with low/medium/high level, sanctions exposure screening (OFAC SDN wallet lists: Tornado Cash, Lazarus, Garantex), on-chain activity on Ethereum + Base (native balance, transaction count, contract-vs-EOA detection) and labels (ENS reverse record, GoPlus address-security flags: phishing, mixer, cybercrime, money laundering, blacklist). Built for agents that need wallet enrichment + risk + sanctions data before paying, onboarding or transacting with a counterparty. No charge on service failure. Ed25519-signed. $0.15 USDC per call via x402 on Base. Free trial: 3 calls per wallet with header X-WALLET.

Wallet/contract state on 5 EVM chains in one call: native balance, nonce, EOA-or-contract (EIP-7702-aware), ERC-20 balances with symbol and decimals

EVM wallet risk scoring — transaction patterns, exposure analysis, suspicious activity

File what you want to buy from an agent-facing API and cannot buy today. Optional kind is typically one of coin, country, vies_country, monitor_host, sms_service — free-form values possible. The $0.01 fee is there to keep intents honest, not to sell you anything: it is not a purchase of the capability and no promise that it gets built. Optionally add the price per call you would pay and your expected monthly volume. Free alternative: POST /agent/request.

List active meteorological warnings and advisories (気象警報・注意報) for a Japanese (JP) region — heavy rain, storm, snow, flood, storm surge, emergency (特別警報) tiers — sourced live from 気象庁 (JMA).

Paid hydrological interaction map connecting wetlands, river systems, floodplains, groundwater systems, estuaries, coastal systems, Chesapeake Bay systems, Yellowstone watersheds, spatial boundaries, and surface-subsurface water behavior.

Paid entity-resolved registry of Water Systems™, including wetlands, river systems, floodplains, groundwater systems, estuaries, coastal systems, watersheds, and their structural classifications.

Live USGS river-gauge tick, deterministic. Answers "what is the flow at this gauge right now", "is this river high or low vs this week". Returns the latest streamflow (discharge, cfs) and gage height (ft) for one USGS site plus the 7-day min/max range, reading count, site name and coordinates, straight from USGS instantaneous values. Unknown sites 404 before payment. No LLM, no key, public domain.

Weather API - current conditions and up to a 7-day forecast for any coordinates worldwide. Returns temperature, feels-like, humidity, precipitation, wind speed, gusts and direction now, plus daily highs, lows, precipitation totals and probability. Every condition carries both the standard WMO code and a plain-text description, with units stated explicitly. Model forecast, and the response says so. Pair with /geocode to go from a place name to coordinates.

Real-time and forecast weather data by location, returned as clean agent-readable JSON, via 01Mind. Pay-per-call, no subscription.

Get current weather conditions and a one-to-seven-day forecast for a geocoded location from Open-Meteo.

Weather forecast — Current conditions + multi-day forecast by coordinate or place.

Weather forecast API: current conditions (temperature, feels-like, humidity, wind, weather code) plus a 3-day daily forecast (highs, lows, precipitation probability) for any latitude/longitude worldwide, as structured JSON. Use for travel planning, logistics, event scheduling, and assistant agents. Cached 10 minutes.

Paid compressed relationship map connecting solar energy, atmospheric circulation, water cycling, jet streams, clouds, storm systems, local weather, regional weather patterns, and Earth systems.

Paid machine-readable Weather registry connecting the water cycle, atmospheric circulation, jet streams, storm systems, clouds, weather patterns across scale, pattern formation, the Naturepedia Weather Mesh, and future weather observation.

Web search via a self-hosted SearXNG instance (title/url/snippet per result).

Web article and PDF to Markdown converter API - fetch any public URL and get clean Markdown plus title, byline, site name, excerpt and word count. HTML is extracted with Firefox reader-mode rules (Readability); PDFs return their text layer with page count. Honest failures: image-only PDFs return no_text_layer, client-rendered app shells return not_extractable - never an empty page passed off as the article. For AI agents, research pipelines, summarizers and content ingestion.

Web content extraction: fetch any public web page and get its readable article content as clean markdown — boilerplate, nav, and ads stripped automatically. For "get me the readable text of this page" requests. Honors robots.txt and Content-Signal/aipref declarations (explicit disallow returns an unpaid 403). SSRF-guarded, 2MB cap.

Deterministic bounded HTML structure extraction for a public URL.

Web extraction for AI agents: URL to clean Markdown + metadata, automatic JS rendering, robots.txt respected. No API key.

Read any public web page and get a clean LLM summary in ONE call — fetch, boilerplate removal, and Claude summarization fused. Query: url (public http/https); instructions? (optional steer, e.g. 'focus on pricing', <=200 chars). Returns {url, title, summary, word_count}. Replaces a scrape->prompt->parse pipeline with a single flat-price call.

Web content extraction for agents at the lowest price in this catalog tier: pass a URL, get the readable content as clean markdown or plain text - title, author, date, main text, tables, links. Direct fetch, no third-party search index resold. 3 MB / 20 s caps, internal addresses refused. Fixed $0.003 per fetch, signed receipt included.