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search.gedx402.com
Tavily API proxy — extract. JSON body matches https://docs.tavily.com/documentation/api-reference/introduction. Poll GET routes (research status, usage) are free; POST routes are x402. $0.102 USDC per request.
$0.10 USDC
search.gedx402.com
Tavily API proxy — search. JSON body matches https://docs.tavily.com/documentation/api-reference/introduction. Poll GET routes (research status, usage) are free; POST routes are x402. $0.042 USDC per request.
$0.04 USDC
search.gedx402.com
Exa neural search API — search. POST { query } for search or { urls } for contents. https://docs.exa.ai $0.013 USDC per request. Agent search: exa, neural search, semantic search, web search, people, company.
$0.01 USDC
social.gedx402.com
Recent posts/videos ingest via SociaVault — POST { platform, handle?, cursor? }. Returns platform-native posts feed with pagination cursor when available. x402 settlement USDC per request (see npm run pricing:report).
$0.01 USDC
kronos-x402.vercel.app
Cross-venue funding arbitrage signal from real-time 8h-equivalent funding rates on Binance, OKX, Bybit, KuCoin, Bitget and Hyperliquid. Returns the gross and net-of-fees spread between the best short venue and best long venue (gross_spread_bps, net_spread_bps after a 20 bps round-trip fee estimate), spread_8h_normalized, venues_count, per-venue rates with funding_interval_hours, annualized_pct, and an actionability label. All 16 assets. $0.003 USDC via x402.
$0.003000 USDC
api.interzoid.com
Retrieve recent news and developments for a company or topic. AI-powered aggregation from multiple real-time sources.
$0.25 USDC
cpi-report-us.underscoredone.com
Gives you official United States inflation numbers from the government's Consumer Price Index. Ask for the newest reading, a specific month in the past, or a whole range of months, and get back clear percentages for overall inflation and 'core' inflation (which ignores food and energy prices), plus a plain-English summary sentence.
$0.01 USDC
domain-age-checker.underscoredone.com
Send a list of domain names and this tool tells you exactly how old each one is, when it was first registered, when it expires, and how much time is left before expiration. Great for spotting brand-new suspicious domains, researching competitors, or evaluating domains before buying or linking to them. Works with over 100 domain extensions worldwide.
$0.01 USDC
domain-availability-checker.underscoredone.com
Give this API up to 10 domain names and it will tell you whether each one has a registration record on file with the official registry. It uses RDAP — the modern, structured replacement for WHOIS — so there is no messy free-text parsing. Each domain comes back labeled 'registered', 'unregistered', or 'indeterminate' (when the registry does not support RDAP for that ending). Important: 'unregistered' means no record was found, which usually means the name is available — but reserved or premium names can also return no record. This API tells you registration status only; it does not tell you price, premium status, or whether a registrar will actually let you buy the name.
$0.01 USDC
curl-http-request.underscoredone.com
Send an HTTP request to any URL from our servers and receive the full response — including the status code, all response headers, and the body content. Supports GET, POST, PUT, PATCH, DELETE, and HEAD. Automatically follows up to 3 redirects. Useful for testing endpoints, verifying servers are responding correctly, debugging redirect chains, or fetching raw data without needing a local setup.
$0.01 USDC
vape-x402.vapex402.workers.dev
VAPE exploit_check — Contract verification + proxy-swap surface check. Real GoPlus/DexScreener/DefiLlama data, no simulation.
$0.01 USDC
hackernews-data.underscoredone.com
This tool reads live information from Hacker News, a popular website where people share and discuss technology news. You can either ask for a current list of stories (like the Top, New, Best, Ask, Show, or Job lists) or ask for every story, job posting, and poll that was posted on one specific calendar day in the past. You can also choose to pull in the discussion comments underneath each story, including nested replies several levels deep.
$0.01 USDC
app.heinrichstech.com
BitBooth echo endpoint — pays a tiny USDC fee, returns a JSON echo. Reference implementation of the x402 + CDP Facilitator + Bazaar discovery loop.
$0.001000 USDC
hash-hmac.underscoredone.com
Give this API any text or binary data and it instantly returns its fingerprint under whichever hash algorithms you choose — SHA-256, SHA-512, MD5, BLAKE2, CRC32, and more. It also signs data with a secret key (HMAC) and, most importantly, safely verifies whether an incoming signature matches — using a timing-safe comparison that prevents secret-leaking attacks. Language models cannot perform hashing: they produce a string of the right length and character set that looks correct but is simply wrong. Every webhook verification, idempotency key, cache fingerprint, or integrity check that relies on a hallucinated hash is silently broken. This API is the cure.
$0.01 USDC
vape-x402.vapex402.workers.dev
VAPE dossier_check — VAPE's deepest instant verdict: weighted CertiK-style score, meme-factory-template detection, recent-hack correlation, public web-reputation search, a live check of the project's declared socials, and a frontier-LLM quick read of the verified source. Real GoPlus/DexScreener/DefiLlama data, no simulation.
$0.10 USDC
json-suite.underscoredone.com
Every AI agent and developer runs into broken or confusing JSON constantly. This tool handles all the most common JSON headaches in one place: check if JSON is valid (with exact error location), fix near-JSON that has typos or formatting mistakes, pretty-print or minify, pull out specific values using a path expression, compare two JSON documents and see exactly what changed, convert to and from YAML or CSV, produce a byte-stable canonical form for hashing or signing, validate against a schema, and get size and structure statistics. Same input always gives the same output — fully predictable, no side effects.
$0.01 USDC
vape-x402.vapex402.workers.dev
VAPE rug_pull_alert — Owner-power / rug-risk flags (mint, blacklist, pausable transfers, LP concentration). Real GoPlus/DexScreener/DefiLlama data, no simulation.
$0.03 USDC
vape-x402.vapex402.workers.dev
VAPE liquidity_check — Liquidity depth + top pair DEX for a Base token. Real GoPlus/DexScreener/DefiLlama data, no simulation.
$0.02 USDC
vape-x402.vapex402.workers.dev
VAPE token_safety_check — Full GoPlus + DexScreener token safety scan with CertiK-style scoring. Real GoPlus/DexScreener/DefiLlama data, no simulation.
$0.02 USDC
quartermaster.surewhynot.app
Look up all x402 Bazaar resources listed under a merchant payTo wallet.
$0.001000 USDC
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