Every agent-payable API.

Passive HTTP security header review for an authorized external target (no exploitation; platform hosts blocked)

Reference catalog of trade/quote condition codes (the numeric `conditions` seen on trades) with names, types, data types, and SIP mappings. From x402stock, a pay-per-call market & economic data API for AI agents. No API key or account; pay in USDC via x402.

Look up one Japanese (JP) company by its 13-digit corporate number (法人番号) — official trade name (Japanese and registered English), registered address, postal code, corporation kind, and lifecycle status. `status` is "active" or "closed"; a closed record carries the closure cause/date and the successor's 法人番号 after a merger. Sourced from the 国税庁 (National Tax Agency) corporate-number public dataset. The leading check digit is validated before lookup.

The Crypto Fear & Greed index (0–100) with its rating, alongside the US stock Fear & Greed score for comparison, current BTC and ETH prices with 24h change, and ~90 days of crypto sentiment history. Pass `?days=N` to size the history. The crypto-sentiment companion to /api/v1/fear-greed (stocks). From x402stock, a market & economic data API (x402, USDC).

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.

Stablecoin peg prices by DefiLlama — historical peg price of every tracked stablecoin.

Historical stablecoin market cap from DefiLlama — aggregate circulating-supply time series across all chains.

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? }.

Domain WHOIS and DNS lookup. Registrar, creation and expiry dates, nameservers, and full DNS records (A, AAAA, MX, NS, TXT, CNAME) for a domain.

Echoes back the JSON body you send, with a server timestamp. Useful for verifying your x402 client integration end to end.

Every energy benchmark in one call: WTI and Brent crude oil spot, Henry Hub natural gas spot, and US regular retail gasoline — each with its latest price, prior reading, and change. The catalog's commodities feed (no equity/forex/crypto endpoint carries these). For one benchmark with history use /api/v1/energy/{product}. Source: U.S. Energy Information Administration (EIA). From x402stock

Exa Search - Neural search across the web

Exact symbolic computation (SymPy): simplify, differentiate, integrate, solve equations/systems, limits, series, Laplace/Fourier transforms, arbitrary-precision eval. Expressions are JSON ASTs; every result is numerically verified. Paid in USDC on Base or Solana.

Reference list of US equity exchanges and market centers with names, MICs, operating MICs, and SIP participant IDs. From x402stock, a pay-per-call market & economic data API for AI agents. No API key or account; pay in USDC via x402.

Verify an AI agent's authority and integrity before a transaction; returns a four-state verdict and a signed verification record

Pay $0.01 USDC to make an outbound HTTP request through the proxy. Supports all standard HTTP methods, custom headers (including auth), and JSON or raw bodies. Responses are returned as text or base64-encoded binary. Max response size 10 MB, timeout 30s. Each request performs one upstream fetch and returns the final URL plus response metadata.

Market-wide recent Form 144 insider intent-to-sell notices across all US issuers — who is filing to sell, before the Form 4 confirms it. Per notice: ticker, issuer, insider, shares to be sold, aggregate market value, and approximate sale date. Tune the window with `?days=` (max 90) or `?startdt`/`?enddt`, and `?limit=` (max 50). Proposed sales, not executed. From SEC EDGAR. From x402stock

One reported XBRL financial fact for every company that disclosed it in a calendar period, for peer screening. Pass ?tag= (e.g. Revenues), ?period= (CY2024, CY2024Q1, or CY2024Q1I for balance-sheet facts), ?taxonomy= (default us-gaap), ?unit= (default USD), and ?limit=. Sorted by value. Sourced from SEC EDGAR. From x402stock, a market & economic data API (x402, USDC).

Full Hyperliquid PnL report. POST {user}. Returns derived skill metrics + open positions (per-coin) + recent activity feed (deposits/withdrawals/funding/liquidations). For agents that need to inspect specific positions, audit a trader, or feed into deeper reputation scoring.

Current state of every US-listed ticker in a single call: price, day change and percent change, volume, and VWAP per symbol. The base layer for building a screener or scanning the whole market without iterating ticker by ticker. Optional `?tickers=AAPL,MSFT` to narrow and `?include_otc=true` to add OTC names. From x402stock, a market & economic data API (x402, USDC).

Full funding rates — all assets, all exchanges, signal analysis

Voice-agent reply turn — low-latency chat after WebSocket ASR flux and smart-turn detection. POST messages[]; synthesize with POST /v1/tts/aura-2-en. Bundle: GET /v1/models?bundle=voice.

The day's biggest percentage gainers across US equities, with current and previous-day OHLCV per ticker. From x402stock, a pay-per-call market & economic data API for AI agents. No API key or account; pay in USDC via x402.

US real Gross Domestic Product, quarterly, in billions of chained 2017 dollars (seasonally adjusted annual rate), with the latest reading, prior quarter, quarter-over-quarter and year-over-year change, and recent history. No ticker needed. The broad measure of economic output for macro-aware analysis. Sourced from the St. Louis Fed (FRED). From x402stock

Real-time geopolitical risk signal — base score + live news sentiment for any country or region

Get weather observations (METAR) for a specific airport

GitHub data. Repository stats, user profiles, and code-search results (stars, forks, language, topics, issues) via the GitHub REST API.

The latest large NEW federal awards across all recipients, from USAspending.gov — browse what the government is funding right now. Tune `?days=` lookback (max 365), `?award_type=contracts|grants|all`, `?min_amount=` floor, `?order=amount|date`, `?limit=` (max 50). Each award carries recipient, amount, awarding agency, dates, description, and a link. Uses new-award dating, not modifications.

Federal contract and grant awards to a US company, from USAspending.gov. Pass `?recipient=Lockheed Martin` (required, fuzzy name match) plus optional `?award_type=contracts|grants|all`, `?order=amount|date`, `?limit=` (max 50). Each award carries the award id, amount, awarding agency, period of performance, description, and a usaspending.gov link, with a total. A government-spending catalyst.

The full daily history of the US stock Fear & Greed index from 2016 to today, each point a date and 0–100 score. Pass `?days=N` to return only the most recent N days (default: full series). Use for charting sentiment regimes and backtesting against price. Companion to /api/v1/fear-greed (current reading). From x402stock, a market & economic data API (x402, USDC).

Hybrid Confession API

Income, balance sheet, cash flow statements

US consumer price inflation from the Bureau of Labor Statistics: the latest headline CPI-U and core (ex food and energy) index levels with year-over-year percent change, plus recent monthly history. No ticker needed. Use for macro-aware analysis without leaving for a separate data source. Sourced from US BLS. From x402stock, a market & economic data API (x402, USDC).

Corporate governance data for a Japanese listed company from its latest annual securities report filed with EDINET, Japan FSA. Look up by stock ticker (e.g. 7203) or EDINET code. Returns executive compensation by officer category (fixed, bonus, performance-based, stock awards), individual director pay over 100 million yen, top-10 major shareholders with ownership ratios, and cross-shareholdings (policy-held stocks) with issuer, shares and value. For governance screening, proxy and ESG research.

KYB / KYC verification of a Japanese company: reconcile a company name (+ optional address) against the official JP corporate registry (名寄せ). Returns ranked candidate 法人番号 with a 0-1 confidence score, handling 株式会社 / (株) / ㈱ spelling variation and matching Japanese or English names. A dissolved corporation is never reported as `verified` even on an exact name match. Use it to confirm a vendor, customer, or invoice counterparty.

Cheapest OFAC SDN wallet screen for AI agents ($0.001). AML/KYT pre-pay gate: PASS/WARN/BLOCK before you settle any x402 counterparty. Keyless Base USDC, Ed25519-attested. Beats $0.005–$0.05 wallet-screen clones. Upsell multi-list sanctions $0.02 + compliance receipt $0.05.

Counterparty compliance pack $0.05: OFAC SDN wallet + multi-list entity sanctions + domain trust + token risk + firmographics + LION_SIGNED_COMPLIANCE_RECEIPT. PASS/WARN/BLOCK. Beats one-shot OFAC tools with attestation. AML KYC due diligence for agents. Keyless Base USDC.

US labor-market headline indicators from the Bureau of Labor Statistics: the unemployment rate, labor force participation rate, total nonfarm payrolls, and average hourly earnings, each with its latest value and change from the prior month. No ticker needed. Sourced from US BLS. From x402stock, a pay-per-call market & economic data API for AI agents. No API key or account; pay in USDC via x402.

US net liquidity (Fed balance sheet minus Treasury General Account minus reverse repo) as a 0–100 percentile with its label and 4-week trend, broken into its FRED components (WALCL, TGA, RRP, M2) plus ~52 weeks of history. A macro-liquidity gauge for risk appetite. Complements the /api/v1/fed-funds and other FRED macro endpoints. From x402stock, a market & economic data API (x402, USDC).

Live valuations for private, pre-IPO companies — Anthropic, OpenAI, SpaceX, Anduril, Neuralink, Kalshi, Polymarket — in one call, via PreStocks Solana tokens backed 1:1 by SPV exposure. Per company: mark price and valuation, on-chain token price and implied valuation, the token's premium/discount, supply, and contract. The catalog's only pre-IPO feed. From x402stock

The day's biggest percentage losers across US equities, with current and previous-day OHLCV per ticker. From x402stock, a pay-per-call market & economic data API for AI agents. No API key or account; pay in USDC via x402.

Follows a URL through its full redirect chain (up to 20 hops), recording status codes, timing, headers, TLS status, and protocol downgrades per hop, then returns an overall redirect health grade (A–F).

Global news attention and tone for any company, ticker, or topic, from the GDELT Project's worldwide news monitoring. Pass `?q=Nvidia` (required), `?timespan=1d|3d|1w|2w|1m|3m` (default 1w). Returns average and latest tone with a positive/neutral/negative label and trend, an article-volume timeline, and recent headlines. A media-sentiment read distinct from the Reddit/4chan feeds. From x402stock

Mode RPC (chain 34443): JSON-RPC over HTTPS on NodeFlare's own bare-metal nodes. Pay per request in USDC, no account or API key - built for AI agents. All methods including eth_getLogs, eth_call, trace, and debug (archive) - good for indexing, event queries, and simulation. Simple calls $0.001; heavy calls priced by compute units. One of the first independent x402 RPC providers for this chain.

Normalize Japanese (JP) text to a canonical form: fullwidth↔halfwidth conversion, halfwidth-katakana folding, invisible-character removal, and whitespace cleanup — each transformation toggleable. Returns a per-change log. Use to deduplicate or match text where '東京' and 'ﾄｳｷｮｳ' must compare equal.

Official US Treasury reporting rates of exchange — government FX reference rates for ~170 currencies, in units of foreign currency per 1 USD, for the latest quarter. Use for accounting-grade and exotic-currency conversion the market /api/v1/forex feed lacks. Filter with `?currency=Euro`. Updated quarterly. From the US Treasury (FiscalData). From x402stock

Onchain data router for AI agents. Plain-English → working GraphQL or REST. 15.5K+ subgraphs on 8 chains. Uniswap, Aave, Compound, ENS, Polymarket, Limitless, Predict.fun, ERC-8004 discovery. Identified senders (include `sender` wallet in A2A metadata): 3 free /route /day, then $0.01 USDC via x402 on Base. Anonymous senders pay $0.01 from call 1. /polymarket + /hyperliquid trader-intel paid from call 1 ($0.01-$0.10).

Full OI report — all assets, all exchanges, 5-min delta

Options chain with IV, volume, OI

Payment security firewall scan for an OUTGOING x402 payment: PII/secret leak detection in payment metadata, nonce replay detection, overpayment detection, prompt-injection-triggered payment analysis (fast + deep tiers), canonical-USDC asset verification, merchant pinning, velocity/spend caps, and counterparty reputation cross-check. Returns allow/flag/block with per-check reasons and an Ed25519-signed verdict. Advisory and non-custodial.