STAGINGThis is a preview of nitrograph.com. Actions here hit the production API.
Catalog

Every agent-payable API.

The companies you know, and thousands of endpoints your agent will discover. The catalog groups the network's 28,500+payable services under the companies that operate them — one company row can carry many service endpoints. Placement can't be bought.

All APIs

28,543 APIs
APICompanyCategoryPrice / callStatus
x402 Web Search
Drop-in web search API: POST the common search body (query, numResults, includeDomains, excludeDomains, contents.text) and get results with id, url, title, publishedDate and page text. Point an existing neural-search SDK base URL at https://search.cyberwarex.com/v1, no key. Keyword engine, Google-grade results on paid calls. Up to 10 links, text for the top 5. No results = not charged.
cyberwarex.com-$0.005listed
x402 Web Search
Search, fetch and extract in one call: top results with page text and the elements matching a CSS selector.
cyberwarex.com-$0.01listed
x402 Web Search
Drop-in page contents API: POST urls plus text options and get each page's readable text (results plus per-URL statuses), JavaScript rendered. Same base URL as the search: https://search.cyberwarex.com/v1. Up to 5 URLs per call. Nothing readable = not charged.
cyberwarex.com-$0.005listed
x402 Web Search
Real-time web search (via Exa) — ranked results with title, URL, published date, author, and relevance score for a query
x402tap.com-$0.003listed
x402 Web Tools
Check a web page for changes: each call compares the page's readable text with your previous check of the same URL (kept per paying wallet for 90 days) and returns whether it changed, when you last checked, and the added and removed lines. The first call records the page. Use name to keep several watches of one URL apart.
kagurazaka.dev-$0.003listed
x402 Web Tools
The items of an RSS, Atom or RDF feed as JSON (title, link, id, published date, author, plain-text summary). Given a web page instead of a feed, it finds the feed the page links to.
kagurazaka.dev-$0.001listed
x402 Web Tools
Encode text or a URL as a QR code: PNG (base64 and a data URL) or SVG, with the size and error correction level you choose.
kagurazaka.dev-$0.001listed
x402 Web Tools
Request an https URL and report whether it is reachable, its status, every redirect hop with timings, key and security headers (HSTS, CSP and others), and the TLS certificate with its issuer, the names it covers and the days until it expires. An unreachable URL is a result too, with the reason.
kagurazaka.dev-$0.001listed
x402 Web Tools
Title, description, canonical URL, language, author, published and modified dates, favicon, RSS and Atom feeds, Open Graph and Twitter card tags, JSON-LD structured data and the h1/h2 outline of a public web page.
kagurazaka.dev-$0.001listed
x402 Web Tools
The URLs a sitemap lists, with last modified dates, or the sitemaps a sitemap index lists. Given a site instead of a sitemap, it finds the sitemap from robots.txt or /sitemap.xml. Gzipped sitemaps are read too.
kagurazaka.dev-$0.001listed
x402 Web Tools
A, AAAA, CNAME, MX, TXT, NS, CAA and SOA records of a domain from public resolvers (Cloudflare and Google), or just the types you ask for, and whether the domain exists.
kagurazaka.dev-$0.001listed
x402 Web Tools
Fetch a public web page and return its main content as clean Markdown (Mozilla Readability, as in Firefox Reader View, then Markdown with absolute links and tables), with title, byline, site name, published date, language, excerpt and a token estimate. Navigation, ads and footers are left out. Pages that cannot be read (errors, not HTML) are not charged.
kagurazaka.dev-$0.002listed
x402 Web Tools
Extract the text of a PDF at a public URL, page by page, with its title, author and page count. Up to 10 MB; scanned PDFs without a text layer return little text.
kagurazaka.dev-$0.003listed
x402 Web Tools
Every distinct link on a public web page as absolute URLs with their anchor text, marked internal or external and nofollow, up to 500.
kagurazaka.dev-$0.001listed
x402 audit of a seller
x402 audit of a seller. Audit an x402 seller before an agent buys from it: decodes the endpoint's 402 terms without paying, OFAC-screens each payTo address, reads its account type and nonce on the payment network, checks the seller domain's age and trust flags, and flags non-USDC assets and high prices. One block, review or pass verdict with reasons. Never signs. Screening aid, not legal advice. Use before the first payment to an unfamiliar x402 seller.
workers.dev-$0.01listed
x402 market pulse
Live cross-provider x402 market sentiment. topProviders: the top x402 sellers ecosystem-wide, ranked by REAL on-chain activity (Agent402 included and flagged isSelf:true). Pick the lens with sort: 'usd' (revenue, default - whale-skewable), 'buyers' (distinct paying wallets - broadest adoption/reach), or 'calls' (raw volume). Every row carries all metrics plus callsPerBuyer (intensity), so revenue and actual ecosystem usage are both visible.
agent402.tools-$0.001listed
x402 protocol version, chains, features, seller address
x402 protocol version, chains, features, seller address
railway.app-$0.005listed
x402 seller check
Check an x402 seller before you pay it: decode any public endpoint's 402 payment requirements without paying (v1 body or v2 header) into USD price for native USDC, network, asset, recipient, scheme and timeout, plus a listing-quality score for https resource URL, atomic amount, facilitator minimum, description, Bazaar metadata and output schema. Never signs. Use before buying from an unfamiliar seller or to audit your own x402 listing.
workers.dev-$0.01listed
x402 seller dossier
Everything Agent402 knows about one x402 seller origin, in one read: identity and crawl history, the catalog with the provenance of every price (live-402 or manifest, when it was read, whether it is stale or disagrees with the seller's own declaration), advertised wallets against the wallets that were actually paid (own chain evidence, inherited wallets, shared claims), settlement evidence per source (our Base leaderboard, Coinbase Bazaar, Solana SPL credits, MPP transfers), the router's own.
agent402.tools-$0.05listed
x402 seller payability check
Buy one call from an x402 seller endpoint right now and report exactly what happened: the unpaid call's status, the 402 decoded (accepts, chains, payTo, asset, price), whether the accept's EIP-712 domain name matches the token it names (the defect that silently makes a whole catalog unpayable), whether a stock client's signed payment was accepted, the settlement receipt and transaction, a slice of the response body, and the time each leg took. Ends in plain-English flags, never a score.
agent402.tools-$0.10listed
x402 seller trust check before you pay: probes the live 402, reads USDC inflow to payTo on Base, counts payers and flags self-dealing (operator paying itself) - verdict green/yellow/red with reasons a
x402 seller trust check before you pay: probes the live 402, reads USDC inflow to payTo on Base, counts payers and flags self-dealing (operator paying itself) - verdict green/yellow/red with reasons and the window it could read
connskill.com-$0.05listed
x402 tools
Use to catch hallucinated or repealed statute citations in a brief, memo or AI answer. Finds up to 25 US statute citations in text, checks each exists and is in force, and checks quoted passages against the section. Not charged if none are found. Data: Open US Law v2026.08 (CC BY 4.0). Not legal advice.
railway.app-$0.01listed
x402 tools
Use before opening, sizing or hedging a Hyperliquid perp to see where leveraged positions get liquidated. Liquidation levels for one coin, bucketed by price, from the open positions of the most active accounts (measured, not modelled): volume within 5%/10% of the mark, biggest clusters, largest positions, open-interest coverage.
railway.app-$0.02listed
x402 tools
Use before sending funds to check that a recipient isn't sanctioned. Screens up to 50 crypto addresses (ETH/EVM, BTC, TRX, USDT, SOL and more) against the addresses on the US Treasury OFAC SDN list, refreshed daily, returning the sanctioned entity, programs and listing date. Exact-address match only: not a full compliance screen.
railway.app-$0.005listed
x402 tools
Use to check one US statute citation before relying on it. Returns whether the section exists, is in force or repealed, its heading, full text and official source link. 48 states, DC and the US Code. Data: Open US Law v2026.08 (CC BY 4.0). Not legal advice.
railway.app-$0.003listed
x402 tools
Use to find what developers and the tech industry are discussing about a topic, or to get today's top tech stories. Full-text Hacker News search (or the front page when no query), filterable by age, points and story type, up to 50 stories with points, comment counts and links. Not charged if nothing matches.
railway.app-$0.002listed
x402 tools
Resolve an address or ENS name and return ETH and USDC balances and tx counts on Ethereum and Base.
railway.app-$0.002listed
x402 tools
Use to price tokens by contract address, including long-tail tokens with no CoinGecko listing. Live DEX price, 24h change, volume, liquidity and market cap for up to 30 tokens per call on ethereum, base, arbitrum, optimism, polygon, bsc, avalanche, solana. One flat price per call; not charged if no address has a price.
railway.app-$0.002listed
x402 tools
Use when an agent needs to read web pages: returns each page's main content as clean markdown (Readability + Turndown) with title, byline and word count. $0.002 per URL; pass up to 10 comma-separated URLs in 'urls' for one batched call. Not charged if every URL fails.
railway.app-$0.002listed
x402 tools
Use before sending an EVM transaction to pick the cheapest chain and set its fees. Live gas on Ethereum, Base, Arbitrum, Optimism, Polygon and BSC: slow/standard/fast EIP-1559 fee tiers (priority fee, maxFee) from recent blocks, plus the USD cost of a transfer, ERC-20 transfer and swap per tier, cheapest chain first.
railway.app-$0.002listed
x402 tools
Use to vet a domain or URL before trusting it, or to check if a name is available. Registry RDAP data (the WHOIS successor) for up to 20 domains per call: registrar, created/expiry dates, age in days, status and transfer lock, nameservers, DNSSEC. Subdomains resolve to their registered domain. One flat price per call.
railway.app-$0.002listed
x402 tools
Use to price a crypto portfolio or watchlist in one call. Market data for up to 50 symbols or 250 CoinGecko ids: price, 1h/24h/7d/30d change, 24h high/low, volume, market cap, rank, FDV, supply, and distance from all-time high/low; optional 7-day sparkline. One flat price per call; not charged if nothing is found.
railway.app-$0.002listed
x402 tools
Generate a QR code as PNG or SVG. Params: data, format (png|svg), size (64-2048), ecc (L|M|Q|H), margin.
railway.app-$0.001listed
x402 tools
Fetch a web page and return its title, description, Open Graph and Twitter card tags, icons and canonical URL.
railway.app-$0.002listed
x402-agent-api
Example premium technology research report
onrender.com-$10,000.00listed
x402-balance
Native ETH balance for any wallet on Base, machine-readable, one call. $0.003 USDC per call on Base.
onrender.com-$0.003listed
x402-block
Latest Base block number, hash, and timestamp in one machine-readable call. $0.002 USDC per call on Base.
onrender.com-$0.002listed
x402-changed
What changed on a page since you last saw it: deterministic line diff of any public URL against text you supply. $0.008 USDC per call on Base.
onrender.com-$0.008listed
x402-factory
Hourly New York City weather forecast (blend model, method labeled) — Hourly weather forecast for New York City: temperature, precipitation probability, and wind, up to 168 hours out. NWS-derived series, bias-blended with our calibrated station model where covered — every response labels the method that produced it. Same shape as /v1/forecast/point with the New York City coordinates built in.
x402-factory.com-$0.01listed
x402-factory
Hourly Seattle weather forecast (blend model, method labeled) — Hourly weather forecast for Seattle: temperature, precipitation probability, and wind, up to 168 hours out. NWS-derived series, bias-blended with our calibrated station model where covered — every response labels the method that produced it. Same shape as /v1/forecast/point with the Seattle coordinates built in.
x402-factory.com-$0.01listed
x402-factory
Hourly Houston weather forecast (blend model, method labeled) — Hourly weather forecast for Houston: temperature, precipitation probability, and wind, up to 168 hours out. NWS-derived series, bias-blended with our calibrated station model where covered — every response labels the method that produced it. Same shape as /v1/forecast/point with the Houston coordinates built in.
x402-factory.com-$0.01listed
x402-factory
Hourly San Francisco weather forecast (blend model, method labeled) — Hourly weather forecast for San Francisco: temperature, precipitation probability, and wind, up to 168 hours out. NWS-derived series, bias-blended with our calibrated station model where covered — every response labels the method that produced it. Same shape as /v1/forecast/point with the San Francisco coordinates built in.
x402-factory.com-$0.01listed
x402-factory
Active and forecast extreme heat risk (NWS + model) — Active NWS alerts filtered to extreme heat hazards for any US point, with model-based risk context. Same shape as /v1/alerts/severe with the hazard class fixed to extreme heat.
x402-factory.com-$0.01listed
x402-factory
Only the product recalls changed since your cursor (delta of /v1/recalls) — Keyset delta of /v1/recalls: pass since=<next_cursor from your last call> and get only the product recalls added or changed after it, plus changed_count and a new next_cursor. Omit since once to bootstrap. Cursors are stable across restarts. Poll the free sibling /v1/recalls/changes for counts and pay only when there is…
x402-factory.com-$0.005listed
x402-factory
Hourly Portland weather forecast (blend model, method labeled) — Hourly weather forecast for Portland: temperature, precipitation probability, and wind, up to 168 hours out. NWS-derived series, bias-blended with our calibrated station model where covered — every response labels the method that produced it. Same shape as /v1/forecast/point with the Portland coordinates built in.
x402-factory.com-$0.01listed
x402-factory
Upcoming science and technology event resolutions — Upcoming science and technology market resolutions in date order with current blended probabilities — the forward calendar of science and technology events an agent can position around. Same shape as /v1/calendar, pre-filtered to science and technology markets.
x402-factory.com-$0.01listed
x402-factory
Hourly Dallas weather forecast (blend model, method labeled) — Hourly weather forecast for Dallas: temperature, precipitation probability, and wind, up to 168 hours out. NWS-derived series, bias-blended with our calibrated station model where covered — every response labels the method that produced it. Same shape as /v1/forecast/point with the Dallas coordinates built in.
x402-factory.com-$0.01listed
x402-factory
Active NWS alerts for a point or state, plus model-forward hazard risk — Official National Weather Service active alerts (public domain, attributed) for a lat/lon or two-letter state, combined with our model's forward 48h hazard probabilities (extreme heat, heavy rain, damaging wind). Pass lat+lon or state.
x402-factory.com-$0.01listed
x402-factory
Only the calendar events added or resolved changed since your cursor (delta of / — Keyset delta of /v1/calendar: pass since=<next_cursor from your last call> and get only the calendar events added or resolved added or changed after it, plus changed_count and a new next_cursor. Omit since once to bootstrap. Cursors are stable across restarts. Poll the free sibling /v1/calendar/changes for counts…
x402-factory.com-$0.005listed
x402-factory
Hourly Los Angeles weather forecast (blend model, method labeled) — Hourly weather forecast for Los Angeles: temperature, precipitation probability, and wind, up to 168 hours out. NWS-derived series, bias-blended with our calibrated station model where covered — every response labels the method that produced it. Same shape as /v1/forecast/point with the Los Angeles coordinates built in.
x402-factory.com-$0.01listed
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