api.x-402.online
api.x-402.online · 62 paid endpoints · listed 2026-10-27
Answer a question about an image, or describe it, from a URL or base64. Image understanding pay-per-call, no account and no API key: send an image URL (or base64) and an optional question, receive a plain-language answer from a multimodal…
livelast check 5 days ago
100%valid x402 answers, 72 h
$1.35USDC received on Base, 7 days
14distinct payers, 7 days
60.6score (0-100)
Paid endpoints
| Method | Endpoint | Price | Networks |
|---|---|---|---|
| POST | api.x-402.online/v1/callbacks A temporary public webhook URL: give it to any service, then long-poll the events that arrived (method, query, headers, body). Free to receive and read, up to 1 | $0.005 | Base, Solana |
| GET | api.x-402.online/v1/chain/abi The verified ABI of a smart contract on any EVM chain from Sourcify: function signatures, event names, contract name, compiler version and proxy implementations | $0.005 | Base, Solana |
| GET | api.x-402.online/v1/chain/allowance Get an ERC-20 allowance with the owner's balance and a sufficiency verdict for the amount you plan to pull. ERC-20 allowance of a spender on an owner (USDC by d | $0.005 | Base, Solana |
| GET | api.x-402.online/v1/chain/balance Get ETH, USDC and up to ten ERC-20 balances of one address in a single call, human-readable. ETH plus USDC plus up to ten ERC-20 balances of one address in a si | $0.005 | Base, Solana |
| GET | api.x-402.online/v1/chain/block Get the latest Base block with its age in seconds, base fee and gas used. The latest Base block: number, hash, timestamp, age in seconds (so you know the node i | $0.005 | Base, Solana |
| GET | api.x-402.online/v1/chain/ens ENS name resolution in both directions: an .eth name to its address, or an address to its primary ENS name, with the avatar when set. Query: ?name=vitalik.eth o | $0.005 | Base, Solana |
| GET | api.x-402.online/v1/chain/gas Get the current Base gas price and the ETH cost of an ETH, ERC-20 or x402 USDC transfer at that price. Current Base gas: gas price, base fee, priority fee, and | $0.005 | Base, Solana |
| GET | api.x-402.online/v1/chain/token Get an ERC-20's name, symbol, decimals, total supply, holder count and USD rate in one call. An ERC-20 on Base in one call: name, symbol, decimals, total supply | $0.005 | Base, Solana |
| POST | api.x-402.online/v1/classify Assign one of 2 to 12 supplied labels to each of up to 20 short messages, with a confidence; labels outside the supplied list are never returned Route short mes | $0.005 | Base, Solana |
| GET | api.x-402.online/v1/crypto/funding-rate Live perpetual futures funding rates for up to 10 coins from OKX: rate, annualized rate, which side pays, interval, next funding time and bounds Live perpetual | $0.005 | Base, Solana |
| GET | api.x-402.online/v1/crypto/market Global crypto market snapshot: total market cap and 24h change, 24h volume, bitcoin dominance, USD stablecoin supply and share, assets tracked, distance from al | $0.005 | Base, Solana |
| GET | api.x-402.online/v1/crypto/news Crypto and blockchain news from four newsrooms in one call (Cointelegraph, Decrypt, The Block, CoinDesk), deduplicated and sorted newest first: title, link, pub | $0.005 | Base, Solana |
| GET | api.x-402.online/v1/domain/health Check whether a domain is reachable and healthy: DNS, certificate, redirects, security headers. One call on a domain: A, AAAA, NS, MX and SPF records; the TLS c | $0.005 | Base, Solana |
| GET | api.x-402.online/v1/email/verify Check whether an email address is well-formed and its domain can receive mail, before you send. Five DNS checks on an email address, no message sent: syntax, MX | $0.005 | Base, Solana |
| GET | api.x-402.online/v1/fx/rates Official ECB foreign exchange reference rates for about 30 currencies, today or on any past date since 1999, from any base, with amount conversion Official ECB | $0.005 | Base, Solana |
| GET | api.x-402.online/v1/geo/forward Turn an address into coordinates: BAN for France (INSEE code, score), OpenStreetMap elsewhere. Address to coordinates: for France the official BAN registry (hou | $0.005 | Base, Solana |
| GET | api.x-402.online/v1/geo/reverse Turn coordinates into the nearest postal address: BAN in France, OpenStreetMap elsewhere. Coordinates to the nearest address: BAN in France (with INSEE code), N | $0.005 | Base, Solana |
| GET | api.x-402.online/v1/markets/prediction Open prediction markets from Polymarket and Kalshi in one call: question, outcome probabilities, 24 h volume, liquidity, closing time and link, sorted by volume | $0.005 | Base, Solana |
| GET | api.x-402.online/v1/perps/stock-gaps Return, per stock ticker, the Hyperliquid HIP-3 perp mark and oracle, the reference stock price and the Solana xStock price, with every pairwise gap in basis po | $0.005 | Base, Solana |
| GET | api.x-402.online/v1/route/directions Point-to-point directions between 2 and 10 stops by car, bike or on foot: total and per-leg distance and travel time, snapped stops, route geometry as GeoJSON o | $0.005 | Base, Solana |
| GET | api.x-402.online/v1/sms/inbox Read the messages received by a phone number rented through /v1/sms/number: sender, body, and reception time, returned as structured data so an agent can extrac | $0.005 | Base, Solana |
| GET | api.x-402.online/v1/stablecoins Stablecoin market in one route: top stablecoins by supply with peg price, deviation and 24h/7d supply change, one coin's peg health with its top chains, or stab | $0.005 | Base, Solana |
| GET | api.x-402.online/v1/token/price-history Token price history in USD by CoinGecko id or chain:address: a 1-365 day time series with change %, high and low, or the price at an exact past date Token price | $0.005 | Base, Solana |
| GET | api.x-402.online/v1/url/unwrap Trace the redirect chain of a URL to its final destination without downloading page bodies: every hop with its status code, time and Location header, the final | $0.005 | Base, Solana |
| GET | api.x-402.online/v1/vin/decode Decode a vehicle identification number (VIN) into make, model, model year, trim, body class, engine (cylinders, displacement, fuel, power), drive type, transmis | $0.005 | Base, Solana |
| POST | api.x-402.online/v1/web/changed Tell whether a page changed since the last time you read it. Has a page changed since you last read it? Send a URL and the content_sha256 you kept from a previo | $0.005 | Base, Solana |
| POST | api.x-402.online/v1/web/contacts Collect the emails, phone numbers and social profiles a page visibly publishes. Emails, phone numbers and social profile links visibly published on a page, read | $0.005 | Base, Solana |
| POST | api.x-402.online/v1/web/forms Every form on a page with its action, method and fields (name, type, label, required, options), so an agent knows what a page asks for before interacting. Read | $0.005 | Base, Solana |
| POST | api.x-402.online/v1/web/headings The document outline of a page: every heading with its level and anchor, in order. Body: {url}. | $0.005 | Base, Solana |
| POST | api.x-402.online/v1/web/images Every image on a page with its resolved URL, alt text and dimensions, plus the social preview image. Body: {url}. | $0.005 | Base, Solana |
| POST | api.x-402.online/v1/web/jsonld Read the structured data a page declares about itself: products, articles, events, organizations. The structured data a page declares about itself: every JSON-L | $0.005 | Base, Solana |
| POST | api.x-402.online/v1/web/navigation The navigation structure of a site as seen on a page: header, footer and nav zones with their links and labels. Body: {url}. | $0.005 | Base, Solana |
| POST | api.x-402.online/v1/web/prices Find the current prices shown on a product or listing page, with currency and context. Every monetary amount found on a page with its currency and surrounding c | $0.005 | Base, Solana |
| POST | api.x-402.online/v1/web/tables Turn every table on a page into JSON rows you can compute on. Every HTML table on a page as JSON rows, with headers detected and captions kept. Fetched through | $0.005 | Base, Solana |
| GET | api.x-402.online/v1/wiki/summary The plain-language summary of a Wikipedia article in any language edition: title, short description, lead extract, canonical URL, thumbnail and coordinates when | $0.005 | Base, Solana |
| GET | api.x-402.online/v1/x402/inspect Check that an x402 endpoint still returns a valid payment challenge, and read its price and recipient. Probe an x402 endpoint and report whether it still return | $0.005 | Base, Solana |
| GET | api.x-402.online/v1/apify/preflight Vet an Apify actor before you pay to run it: verdict, 0-100 score, 30-day run success and timeout rates, last run and build age, deprecation, users, rating and | $0.01 | Base, Solana |
| GET | api.x-402.online/v1/eu/mica-check Is this crypto firm authorised under MiCA in the EU? One call checks the official ESMA register of crypto-asset service providers (CASP) by company name or LEI: | $0.01 | Base, Solana |
| POST | api.x-402.online/v1/extract Read the main content of a page your own crawler cannot reach, as clean markdown. Send a URL and receive the main content of the page as clean markdown, strippe | $0.01 | Base, Solana |
| GET | api.x-402.online/v1/fr/analyse-immo/partial Get price per square metre and recent sales around a French address. Lite property analysis for a French address: median price per square metre in the area, est | $0.01 | Base, Solana |
| GET | api.x-402.online/v1/fr/procedures-collectives Is this French company in insolvency proceedings? Returns a synthetic status, the full history of court judgments (safeguard, receivership, liquidation) and a r | $0.01 | Base, Solana |
| POST | api.x-402.online/v1/llm Get a short completion from a capable model, paid per call, with a bounded output of 2000 tokens. LLM inference pay-per-call, no account, no API key: prompt in, | $0.01 | Base, Solana |
| GET | api.x-402.online/v1/search Get ranked web results for a query. Real Google web search: top 10 organic results, answer box and knowledge graph, in one call. STANDARD tier, a useful single- | $0.01 | Base, Solana |
| GET | api.x-402.online/v1/search/news Get fresh headlines about a topic, with source and age. Fresh news search (Google News via Serper): latest headlines with source, date, snippet. Great for crypt | $0.01 | Base, Solana |
| POST | api.x-402.online/v1/token/verdict Risk verdict on a Base token: grade, 0-100 risk score from weighted and explained flags, honeypot simulation, taxes, owner powers, liquidity, holders, pair age, | $0.01 | Base, Solana |
| GET | api.x-402.online/v1/amazon Get an Amazon product's title, price and availability by ASIN or search term. Look up an Amazon product by ASIN or search term: title, current price, availabili | $0.02 | Base, Solana |
| POST | api.x-402.online/v1/extract/verified Read a page and get a deterministic verdict on whether the retrieval can be trusted, with evidence. PRIVATE BET… | $0.02 | Base, Solana |
| POST | api.x-402.online/v1/image Turn a text prompt into a 1024x1024 JPEG in about four seconds. Text-to-image generation pay-per-call, no account and no API key: send a prompt, receive a 1024x | $0.02 | Base, Solana |
| POST | api.x-402.online/v1/llm/pro Get a long completion with a large output budget, same engine as /v1/llm. Long-form LLM inference: same engine as /v1/llm with a four times larger output budget | $0.02 | Base, Solana |
| POST | api.x-402.online/v1/render Get the full HTML of a page after its JavaScript has run, as a browser sees it. Send a URL and receive the complete HTML of the page after JavaScript execution, | $0.02 | Base, Solana |
| GET | api.x-402.online/v1/social/search Search Hacker News and Lemmy posts by query, sort and time window, merged, with score, comments, permalink and excerpt. Community search across Hacker News and | $0.02 | Base, Solana |
| GET | api.x-402.online/v1/social/thread Get one Hacker News or Lemmy thread: the post with its text and the comments flattened with depth and score. One community thread by id from /v1/social/search ( | $0.02 | Base, Solana |
| GET | api.x-402.online/v1/transcribe Transcribe the actual audio of a YouTube, TikTok or Instagram video with Whisper large-v3. Not caption scraping: the audio is downloaded and run through speech | $0.02 | Base, Solana |
| POST | api.x-402.online/v1/vision Answer a question about an image, or describe it, from a URL or base64. Image understanding pay-per-call, no account and no API key: send an image URL (or base6 | $0.02 | Base, Solana |
| POST | api.x-402.online/v1/agent/task Give an objective and a budget; get a verified result assemb… | $0.05 | Base, Solana |
| POST | api.x-402.online/v1/brief Get a short news briefing on a topic where each point cites its numbered source. Send a topic and receive a sourced news briefing in one call: fresh headlines a | $0.05 | Base, Solana |
| POST | api.x-402.online/v1/search/sources Search a topic and get the full content of the best pages, in one call. Search, then read the top results, in one call: ranked results from a real web search, a | $0.05 | Base, Solana |
| POST | api.x-402.online/v1/solve Send a task in plain words and let the router pick and run the right capability. One endpoint for any capability. Send a task in plain words, or name a capabili | $0.05 | Base, Solana |
| POST | api.x-402.online/v1/us/brief Ask about any US public company and get the answer, not the raw filings. One call returns a summary where every claim cites where it came from, the key points, | $0.05 | Base, Solana |
| GET | api.x-402.online/v1/us/company Resolve a ticker or CIK to a US company's registered identity. Profile of a US public company from SEC EDGAR: legal name, central index key, ticker symbols, exc | $0.05 | Base, Solana |
| GET | api.x-402.online/v1/fr/kyb Know-your-business dossier on a French company, assembled from official registries for compliance and onboarding: verified legal identity, company form and regi | $0.10 | Base, Solana |
| POST | api.x-402.online/v1/publish Host a generated HTML page on a permanent unguessable link for up to 30 days: static HTML, inline CSS and SVG render; scripts, forms and external requests are b | $0.10 | Base, Solana |
Latest checks
| When | Endpoint | HTTP | ms | Result |
|---|---|---|---|---|
| 5 days ago | api.x-402.online/v1/agent/task | 402 | 250 | valid x402 v2 terms |
Income on Base (7 days)
| Day | Transfers | USDC | |
|---|---|---|---|
| 2026-11-01 | 6 | $0.045 | |
| 2026-10-31 | 1 | $0.02 | |
| 2026-10-30 | 1 | $0.02 | |
| 2026-10-29 | 1 | $0.02 | |
| 2026-10-28 | 21 | $0.24 | |
| 2026-10-27 | 1 | $0.005 | |
| 2026-10-26 | 62 | $0.925 | |
| 2026-10-25 | 11 | $0.07 |
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x402_provider_claim (sign with your payout address), and get an alert within minutes when it stops answering with x402_monitor_create ($5 for 30 days). Both work over MCP (https://logicnodes.io/mcp/v2) or POST https://logicnodes.io/v1/tools/<tool>.Income is all USDC received by the provider's payout address on Base, whatever the source. Score: 0-100: 50 x share of checks in the last 72 h that returned valid x402 payment terms + 30 x min(1, log10(1 + USDC received in 7 days) / 4) + 20 x min(1, log10(1 + distinct payers in 7 days) / 3). A provider never checked scores on income only; income is all USDC received by its payout address on Base, whatever the source. JSON: /v1/observatory/providers/api.x-402.online