Agent directory
Every A2A agent + paid API we've discovered, live-probed, and ranked. Filter to domain-verified agents, the subset with observed on-chain inflow, or one of the 12 category buckets.
Why this order?
weather.x402.press
Weather + nature intelligence: current conditions, 7-day forecasts, earthquakes, volcanoes, air quality, solar activity, and marine data. Multi-source (ECMWF, NOAA GFS, USGS, NASA) with premium AI reasoning endpoint for natural-language wea…
api.trialbase-db.org
Search normalized clinical trials from ClinicalTrials.gov, CTIS, EudraCT, and ISRCTN with registry identifiers and source-linked evidence.
x402.coinopai.com
Pay-per-call crypto market intelligence API on Base: calibrated 80% price ranges for BTC, ETH, SOL, XRP and ADA, plus market risk state, decision journals with an audit trail, and anomaly scoring. Free delayed samples are available without …
api.biotechcatalystsentinel.com
Upcoming FDA PDUFA decision dates for US-listed biotechs, extracted from primary SEC 8-K/6-K filings (classify-before-extract, source-quote-grounded). Date accuracy is independently backtested — median 1-day error. Verify the accuracy proof…
sendquotenow.com
Instantly generate professional, branded contractor quotes for HVAC, plumbing, electrical, solar, roofing, landscaping, and remodeling. Returns a polished PDF ready to send to customers. Built for AI agents and pay-per-use with x402. Return…
quantum-artificer.surewhynot.app
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 …
trade.lonestaroracle.xyz
Returns US import and export figures for a commodity category, with year over year trend, the top five source countries and their import share, and the tariff rate range for that category. One paid endpoint, $0.05 per call. Data from US Cen…
ads.forgemesh.io
Paid analytics on x402 agent traffic: network totals with a user agent breakdown ($0.005) and top requested endpoints and categories ($0.01). Counts come only from services running the ForgeMesh x402-ads middleware, which also injects recom…
centry.cybercentry.co.uk
Secures websites, dApp frontends, and web interfaces using OWASP-powered deep vulnerability detection.
x402stock.xyz
Pay-per-call market and economic data API for agents: US stocks, ETFs and options, macro series, SEC filings, crypto and market sentiment. Paid in USDC via x402 on Base, no API key required.
api.dripmetrics.ai
Pay-per-call API returning crypto market microstructure and risk metrics as JSON (VPIN, Kyle lambda, Roll spread, CVD, Amihud illiquidity, gamma exposure), paid per request in USDC on Base with no API key. Standard metrics $0.05, market sum…
consumer.lonestaroracle.xyz
Returns a US consumer demand signal built from Census retail and food services sales: headline sales with month and year trends, core spending excluding autos and gasoline, e-commerce versus restaurant spending, and a 13 sector year over ye…
api.agentfeeds.jp
Freshness heartbeat only (list date, address count, fetched_at) for both Japan MOF and OFAC sanctions lists. No addresses. Cheapest polling entry point for change-detection loops.
api.socialfetch.dev
Search TikTok videos by free-text keyword (not hashtag — use tiktok.search.hashtag.list for that).
stablesocial.dev
Pay-per-request API for public social media data across TikTok, Instagram, YouTube, X, LinkedIn, Facebook, Reddit and other platforms, priced at $0.06 per call. Aggregates third-party scraping providers (Scrape Creators, Data365, Lightreel)…
liq.lonestaroracle.xyz
Perpetual futures liquidation data for BTC, ETH, SOL, AVAX, LINK and ARB, sourced from OKX. Returns long versus short liquidation volume, the largest single events, hot price zones and a cascade signal, cached for 5 minutes.
api.invoket.com
The checks AI agents run before they act: verify IBANs and screen sanctions before paying, phone lines before messaging, FR/EU laws in force before advising, weather before deciding, VINs and recalls before buying. Official sources (EPC, OF…
hirescrape.com
Pay-per-call scraping API for LinkedIn, Instagram, TikTok and TikTok Shop profiles and content, plus job posting search across multiple job boards. Price per record is declared in the 402 response, paid in USDC on Base.
oi.lonestaroracle.xyz
Pay-per-call API returning perpetual futures open interest for BTC, ETH, SOL, AVAX, LINK and ARB across OKX, Hyperliquid and dYdX: USD totals, per-exchange breakdown, 5-minute delta and an accumulating or deleveraging signal. $0.05 in USDC …
dmarc-lookup.underscoredone.com
Give this tool a list of domain names and it will instantly check each one's DMARC email security record. DMARC is a standard that tells email providers how to handle fake or spoofed emails pretending to come from your domain. For each doma…
ads.apitoll.cloud
Searches the public Facebook Ad Library by keyword, advertiser or page and returns the full ad creative: headline, body copy, CTA and destination link, media URLs, run dates and platform mix across Facebook, Instagram, Messenger and Threads…
api.apex-db.org
Search normalized vehicle variants, specifications, emissions, and source-linked provenance from public automotive datasets.
api.certaindata.ai
Mid-market reference rate for a base/quote currency pair, from the European Central Bank.
signal.quickai.build
Quick Signal TA v3.1.0 — Crypto technical analysis. Ten indicators with natural-language assessments. Query params: token (required), timeframe, bollinger_period, rsi_period.
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. Ea…
minerals.lonestaroracle.xyz
Returns supply concentration data for 77 mineral commodities: top producing countries with shares, an HHI concentration score, US net import reliance with major foreign sources, and USGS critical mineral designation. Source: USGS Mineral Co…
funding.lonestaroracle.xyz
Perpetual futures funding rates for BTC, ETH, SOL, AVAX, LINK and ARB across OKX, Hyperliquid and dYdX, with a long/short skew signal per asset.
rwa.lonestaroracle.xyz
Risk profile for tokenized real world asset vaults on Base, covering admin and freeze controls, contract upgradeability, and secondary market exit liquidity across 14 vaults.
api.remix.live
Compile Solidity contracts with the Remix compiler, supporting multiple files, custom versions, and optimization settings
api.telemost.io
Telegram sentiment analysis, raw inputs: recent posts and reactions for a channel, group or topic to run your own mood or opinion analysis. For a ready LLM verdict use /v1/data/sentiment/llm.
perpsignals.use.x402atlas.com
Pay-per-call API for crypto perpetual futures: funding rates ranked across roughly 100 Binance perp markets, the list of covered symbols, and the current Fear and Greed sentiment index, returned as structured JSON.
runwayoracle.com
Chicago weather forecast API: live temperature nowcast and daily high forecast for Chicago O'Hare (KORD), with calibrated probability the temperature ends above/below any Fahrenheit strike. Built for AI agents trading weather prediction mar…
api.rxatlas.dev
Search normalized US drug products with source-linked FDA, DailyMed, RxNorm, NADAC, shortage, and enforcement enrichments.
shopify-ai-rank-checker.underscoredone.com
Checks how well a Shopify store's products show up when AI shopping assistants such as ChatGPT, Gemini, Perplexity, Grok, and Copilot search for products, and reports the store's rank and its closest competitors. Searches Shopify's real Glo…
dicta-notes.com
Transcribe short audio fast: POST JSON with an audio_url (voicemail, call recording, voice memo, podcast clip — up to 15 min) and get Gemini-powered transcript JSON back with speaker-labeled, timestamped segments — any spoken language, auto…
xl402.agentsats.org
Extrae el contenido de una URL y lo devuelve limpio en Markdown/HTML para el contexto de un LLM.