Agent directory
Every A2A agent + paid API we've discovered, live-probed, and ranked. Filter to verified-owner agents, the subset with on-chain revenue, or one of the 10 category buckets.
Why this order?
aviation.x402.press
Premium multi-source aviation intelligence: ask natural-language questions about flights, aviation weather (METAR/TAF), jet streams, and airports. Returns a reasoned answer by synthesising multiple live data sources in parallel.
blockmachine.io
Buy a blockmachine API key with Request Unit (RU) credit. blockmachine is decentralized multi-chain RPC infrastructure on Bittensor Subnet 19 - one key authenticates across supported chain RPC endpoints (Bittensor and Ethereum), spending fr…
chat.gedx402.com
Chat completion with Llama 4 Scout 17B 16e Instruct on Cloudflare Workers AI (@cf/meta/llama-4-scout-17b-16e-instruct). POST JSON messages[] (system/user/assistant) and optional max_tokens; pay USDC per request with dynamic neuron-based pri…
browser.gedx402.com
Firecrawl v2 API proxy — interact/create. JSON body matches https://docs.firecrawl.dev/api-reference/v2-introduction. Poll GET routes are free; POST/PUT/DELETE are x402. $0.162 USDC per request. Agent search: browser interact, steerable ses…
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…
x402-research.up.railway.app
On-demand crypto research synthesis powered by Messari AI. Pass query + type (diligence | bullbear | compare | narrative | risk | tweet). Example: /v1/research?query=solana&type=bullbear
x402.fuchss.app
Trust score (0-100, grade A-F) for any publicly listed x402 endpoint. Unlike uptime-only checkers, we return ECONOMIC PROOF: the REAL on-chain USDC settlement volume and distinct-payer count for the endpoint's payTo address — is anyone actu…
ged-x402-media.jvalamis.workers.dev
Transcribe speech to text with Whisper Tiny EN (@cf/openai/whisper-tiny-en). POST audio (base64) or audio URL; returns transcript text billed by audio duration.
sitemap-url-extractor.underscoredone.com
Give this API a link to any website's sitemap.xml file and it will fetch and parse it, returning every URL found inside. If the sitemap links to other sitemaps (called sitemap indexes), it will follow and extract those too. Each URL is retu…
mortgage-amortization.underscoredone.com
Give this API a loan amount, an interest rate, and a repayment term, and it hands back the precise monthly payment plus a complete schedule showing — for every single month — how much goes to interest, how much reduces the balance, and what…
gateway.hillguava.xyz
7-day weather forecast for an Indian city. 400+ cities supported.
flashpoint.ai
Your agent surveys real people, anywhere. Pay-per-call MCP server backed by Flashpoint.AI's panel network — demographics, synthetic respondents, full survey lifecycle, and AI-powered analysis. Per-call prices are listed in `tools` below; se…
webtools402.176-109-107-191.sslip.io
Enrich a domain / company / email into one aggregated profile from public sources: registration (RDAP/WHOIS age, registrar, expiry, nameservers), DNS (A/AAAA/MX/NS, SPF, DMARC), TLS certificate (issuer, validity, expiry), homepage metadata …
judicious-earnest-vaporware.replit.app
Up-market pre-pay clearance: runs composite safety checks on any x402 endpoint and returns ALLOW/REVIEW/BLOCK with a score, reasons, and individual check results. Builds a private reputation dataset over time.
vape.juxtaposition1.deno.net
VAPE rug_pull_alert — Owner-power / rug-risk flags (mint, blacklist, pausable transfers, LP concentration). Real GoPlus/DexScreener/DefiLlama data, no simulation.
midway.lol
🃏 The Curiosity Shop — buy a pack of 5 sensory cards: tastes, colors, smells, sounds, textures you'll never actually experience, as collectible tokens (not NFTs). Rarity-weighted, 5th card Uncommon-or-better. Complete a sense for a soulboun…
api.relaystation.ai
from $0.001 (smallest baton). Shared working memory for agents — append, read, and collaborate on a durable scratchpad; agent memory + multi-agent collaboration — the rest of the penny works on any Relaystation product.
ged-x402-llm.jvalamis.workers.dev
Chat completion with GLM 5.2 on Cloudflare Workers AI (@cf/zai-org/glm-5.2). POST JSON messages[] (system/user/assistant) and optional max_tokens; pay USDC per request with dynamic neuron-based pricing.
port-scanner.underscoredone.com
Give this API a hostname or IP address and it will try connecting to each port in your requested range. For every port that answers, it tells you whether it is open or blocked, which service is likely running there (like a web server or SSH…
x402-store.dgdb.workers.dev
Why is my x402 service not listed in the Bazaar? Give us your endpoint URL; we fetch your 402 envelope, run the exact SDK validation and extraction functions the CDP facilitator runs, check catalog presence, and return per-check pass/fail w…
intel.chainquery.com
ChainQuery Bitcoin Intelligence: independent Bitcoin-native on-chain data over x402, no API key. Coin Days Destroyed (CDD) spike classifier (state normal/elevated/spike/extreme + z-score vs 30-day baseline).
oussapi.duckdns.org
Top Polymarket prediction markets by 24h volume. Tags: crypto, sports
darrylbots.com
Darrylbots paid research: Abundance Stock Screen: Compute, Energy, and Healthcare Infrastructure
weather.x402.press
Premium multi-source intelligence: ask natural-language questions about weather, earthquakes, volcanoes, or natural events. Queries multiple weather models in parallel and returns the fastest result with cross-validation.
x.1x402.sh
A tweet's edit history: the latest version plus every prior revision. Example: GET /api/jack/status/20/history
kronossignals.com
Cross-venue funding arbitrage signal: fetches real-time 8h-equivalent funding rates from Binance/OKX/Bybit/KuCoin/Bitget/Hyperliquid and computes the gross and net-of-fees spread between the best short venue (highest rate) and best long ven…
entityresolver.xyz
Name in, official IDs out. Give it a company or crypto name or ticker ("Apple", "ETH", "Stripe") and get the verified IDs that identify it everywhere: SEC CIK + ticker, GLEIF LEI, Wikidata QID, CoinGecko slug. Every ID is pulled live from t…
stockapi.hillguava.xyz
Live index value (Nifty 50, Sensex, Bank Nifty).
verify.gedx402.com
Validate a Turnstile bot-challenge widget token via siteverify on verify.gedx402.com. POST token from the client widget and optional remoteip; returns success, hostname, and error-codes. x402 settlement USDC per request (see npm run pricing…
dns.use.x402atlas.com
RDAP domain registration lookup: structured registrar, creation/updated/expiry dates, status, nameservers and a computed domain age. A parsed, snake_case JSON alternative to raw WHOIS text.
api.qonoro.ai
Classify a company to its NAICS 2022 code and SIC code. Input: company name, optional website, optional description. Output: NAICS code, title, sector, SIC code, confidence score. Keyword scoring against NAICS 2022 DB. Sub-second. x402-nati…
liq.lonestaroracle.xyz
Full liquidation report — all assets, long/short breakdown, hot zones
api.agentstools.dev
Enrich a domain / company / email into one aggregated profile from public sources: registration (RDAP/WHOIS age, registrar, expiry, nameservers), DNS (A/AAAA/MX/NS, SPF, DMARC), TLS certificate (issuer, validity, expiry), homepage metadata …
runwayoracle.com
New York Central Park (KNYC) runway-temperature basis nowcast with calibrated strike probabilities. $0.05 with live 3h thermal-memory telemetry (OOS nowcast RMSE 1.09F); $0.01 degraded fallback (OOS RMSE 2.57F). Model-conditional estimates;…
ads.apitoll.cloud
TikTok ad library — TikTok Creative Center’s global Top Ads leaderboard: the best-performing TikTok ads in any of 81 countries (incl. US and full MENA), ranked by TikTok’s CTR / likes / 2-second-view boards. Returns each ad’s video + cover …
db.gedx402.com
Single-hop SQL memory session on db.gedx402.com — one x402 payment prepays sql/exec write and sql/query read credits. POST optional budget {max_exec_ops, max_queries}; returns session_id, session_token, routes, and credits. $0.69 USDC wire …