Every agent-payable API.

Cited time-series for a single financial line-item from SEC EDGAR XBRL. Give a ticker or CIK plus a concept (a canonical name like revenue or netIncome, or a raw us-gaap tag) and get the normalized period values, each cited to its filing. Cheap granular pull.

Normalized company financials from SEC EDGAR XBRL filings. Give a ticker or CIK and get income statement, balance sheet and cash flow lines mapped to one clean schema, each value cited to its real XBRL tag and filing. Compact cited JSON instead of megabytes of raw XBRL.

US electricity data from the EIA grid monitor and retail survey: generation mix by fuel type with percentage breakdown (latest hour), demand by region, and average retail price by state/sector (monthly).

US natural gas data from the EIA: Henry Hub spot price (daily) and weekly working gas in underground storage (Bcf, Lower 48 or region). Returns latest value, change vs the prior period (week-over-week for storage), and short history. Source: U.S. Energy Information Administration.

Current levels of the three ECB key interest rates -- main refinancing operations (MRR_FR), deposit facility (DFR) and marginal lending facility (MLFR) -- straight from the official ECB Data Portal (dataflow FM, daily levels). Query: ?last=N (1-60, default 1) to include the N most recent daily observations per rate. Returns latest values plus dated series, in percent per annum; served with a 6h cache.

Reverse-geocode coordinates (WORLDWIDE) to a street address + parsed components via OpenStreetMap Nominatim; enriched with the nearest NWS city/state when the point is in the US.

Real-time crypto trading signals for BTC, ETH, SOL and 400+ coins — classified by type (whale flows, funding, liquidations, listings, news, on-chain), scored, with direction, confidence and conviction. Emitted signals' forward-return record is public at n0brains.com/proof. Not financial advice.

On-chain USD spot price for 50+ assets from Chainlink feeds or the most-liquid Base DEX pool (computed from public chain state): crypto majors, stablecoins, Base-native tokens, forex currencies and precious metals.

Basename/ENS resolution on Base: forward name->address (give 'name') or reverse address->name (give 'address', forward-verified against spoofing).

One-call market snapshot: BTC/ETH/SOL spot + 24h change, crypto fear & greed index, and SPY/QQQ/DIA/IWM quotes. JSON.

Crypto fear & greed index (current + previous reading). JSON.

Phone-number intelligence in one call: validity and E.164 normalization, line type (mobile, fixed line, VOIP, toll free, premium rate), country and region, carrier hint, timezones, and a deterministic 0-100 fraud/KYC risk score with a band and reasons. Offline number-plan metadata from Google libphonenumber. Risk indicators only, not a definitive fraud verdict; no live status and no owner identity; the input number is not stored.

Kelly-criterion optimal bet fraction and position sizing from a win probability and payoff, or from an edge and odds. Pure computation over your inputs.

Compare several US geographies on one real-estate metric: price momentum, gross rental yield, price to income, median home value, median gross rent or median household income. Returns a ranking plus rank, highest and lowest, spread and mean signals.

Disambiguate a researcher and return their profile: works count, citation count, h-index, institutions with ROR, top concepts and top works. Give an orcid for a resolved profile, or a name for ranked candidates. Distinct people are never merged.

Locate a free open-access PDF for a DOI. Returns whether an open-access copy exists and the best PDF link with its license, version and host type, from Unpaywall and OpenAlex. A cheap, focused open-access locator.

Resolve one research paper and fuse its metadata across OpenAlex, Crossref, Unpaywall and Semantic Scholar into a single cited JSON. Give a doi, arxiv, pmid, pmcid, openalex_id or title and get canonical metadata, authors with ORCID and affiliations, venue, citation counts, an open-access PDF link and a full id crosswalk.

Tabular time-series lookup across economic indicators (FRED, World Bank, UN Comtrade), crypto TVL, weather, and stock quotes -- by source + series_id, with an optional date range.

Convert a raster image (PNG, JPEG, or WebP) into clean, editable, self-verified SVG vector art. Pay per conversion in USDC on Base via x402 - no API key, no subscription. Send JSON with imageBase64 or imageUrl; tune with mode (auto/binary/color/pixel), detail (high/normal/clean/poster), transparent or solid background, and outline flags. Returns the SVG plus a quality report (paths, similarity score).

Official US weather forecast from the National Weather Service (NOAA): multi-day and hourly periods for any US coordinates or street address. Temperature in Celsius and Fahrenheit, precipitation probability, wind speed and direction, and plain-language conditions. Authoritative government public-domain data, commercial use OK.

Fetch a public URL and return clean markdown/text + metadata (trafilatura).

Extract every link from a public page for crawling agents: de-duplicated absolute URLs with anchor text, internal/external counts, declared feeds and a sitemap hint.

Paid x402 passport endpoint

0.002005 USDC on base-sepolia

0.01 USDC on base-sepolia

0.01 USDC on base-sepolia

0.01 USDC on base-sepolia

0.01 USDC on base-sepolia

0.01 USDC on base-sepolia

0.01 USDC on base-sepolia

0.01 USDC on base-sepolia

0.01 USDC on base-sepolia

0.01 USDC on base-sepolia

0.01 USDC on base-sepolia

0.1 USDC on base-sepolia

0.1 USDC on base-sepolia

0.1 USDC on base-sepolia

0.1 USDC on base-sepolia

0.1 USDC on base-sepolia

0.1 USDC on base-sepolia

0.5 USDC on base-sepolia

0.5 USDC on base-sepolia

1 USDC on base-sepolia

1 USDC on base-sepolia

1 USDC on base-sepolia

1-year daily closing price history (~252 data points). Returns date, close price, change %, and market cap.

2-year quarterly financial history (~8 quarters): revenue, operating profit, net income, total assets, equity. Use for year-over-year comparisons.

3-month daily closing price history (~65 data points). Returns date, close price, change %, and market cap.

3-year daily closing price history (~780 data points, up to 3 years back). Returns date, close price, change %, and market cap.

x402-preflight: confirm your wallet can transact, and see your balance, in one certified call. Pay $0.01 USDC on Base, get a signed on-chain-anchored receipt. The safe first transaction before you ship real volume.