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?
x402scan-hnqp3auxm-merit-systems.vercel.app
Discover and register all x402 resources from an origin via .well-known/x402 or DNS TXT
x402-tools.vercel.app
Get the top trending prediction markets on Polymarket, sorted by 24h volume. Returns up to 5 markets by default.
latent-lounge-x402-production-e6f1.up.railway.app
Paid single-attempt reasoning puzzle for AI agents at The Latent Lounge — infer the hidden rule of an integer sequence and name the next term. Every puzzle is freshly generated and un-memorizable (no fixed test set to game). Correct solves …
mcp.yield.xyz
Construct unsigned transactions to stake or deposit into a yield. Does NOT execute — caller signs and broadcasts each returned tx. Supports staking, lending, vault deposits, RWA, and ERC-4626 across 80+ networks.
www.stable-shovels.dev
Shovels Tags — list all available permit classification tags (and their descriptions) for use as `permit_tags` filters.
horizon-pulse.vercel.app
Horizon Pulse Signals - real RSI(14), MACD(12,26,9), Bollinger(20,2), and live perpetual funding rates for BTC/ETH/SOL. Transparent rule-based buy/hold/sell signal. No black box.
stable-travel-git-migrate-stabletravel-router-140-merit-systems.vercel.app
Search Google Flights for flight offers. Returns best flights, other flights, price insights, and airport info.
finance.toon.haus
Insider transactions (P=buy,S=sell,M=exercise) + sentiment
stock-price.api.klymax402.com
Get real-time stock quote with price, change, volume, and market cap
port-scanner.api.klymax402.com
Scan common ports on a host to check which are open
tweets.use.x402atlas.com
Search Twitter/X tweets with structured filters. Returns up to 20 tweets per page with pagination cursor, full text, author profile and engagement metrics (likes, retweets, replies, views). Params: words, phrase, any_words, none_words, hash…
email-deliverability.api.klymax402.com
Audit email deliverability for a domain — checks SPF, DKIM, DMARC, MX records (POST variant)
gatewaypay.online
SOCKS5 proxies from Zyvrox 540K global pool — 146 countries
domain-intelligence.api.klymax402.com
Get comprehensive domain intelligence (WHOIS + DNS + SSL) (POST variant)
solana-pools.api.klymax402.com
Get liquidity depth for Solana DEX pools by token mint (POST variant)
gateway.drillr.ai
Search companies by ticker / name / CIK (SQL fast-path or NL agentic)
funding-rates.api.klymax402.com
Get perpetual futures funding rates across exchanges (POST variant)
diff-checker.api.klymax402.com
Compare two texts and show line-by-line differences
2captcha.x402.paysponge.com
Service: 2Captcha (https://2captcha.x402.paysponge.com/createTask)
gliana-ai.glianalabs.workers.dev
tools/face-embed: utility API on GlianaAI - pay-per-call, no signup, USDC. Input: { image_url | image_base64 }. Upload flow: POST raw image to /v1/media -> { url } -> pass as image_url. Returns one 512-d vector per face. base64 only for sma…
gdelt.use.x402atlas.com
Global news article search by GDELT — normalized fulltext search across worldwide media (query syntax: phrases, OR, sourcecountry, theme, tone) returned as a clean snake_case envelope.
pqs.onchainintel.net
Pass/Fail before you waste budget on a doomed call. Decide whether to make a paid LLM call before you make it. Preflight scores your prompt against an 8-dimension quality rubric (pass/fail at 28/80) and optionally pulls the target endpoint'…
phone-validation.api.klymax402.com
Validate up to 50 phone numbers in a single batch request
api.syndicatelinks.co
Generate an affiliate tracking link — pay $0.01 USDC per link
email-finder.api.klymax402.com
Find a person's email from their name and company domain (POST variant)
x402pixels.com
Paint pixels on x402-pixel — a shared 1000×1000 collaborative pixel canvas and on-chain ad board for AI agents. POST a batch of { x, y, color } pixels; each claim can carry a title and a link. Pay per pixel in USDC; pixels are permanent onc…
hl-portfolio.api.klymax402.com
Full clearinghouse state for a Hyperliquid wallet: positions, margin, PnL, leverage, liquidation prices.
api.algovault.com
Composite BUY / SELL / HOLD trade verdict for a perpetual-futures market, with a 0–100 confidence score, the current market regime, live price, and multi-factor reasoning (funding rate, open-interest change, 24h volume, trend persistence, b…
keyword-research.api.klymax402.com
Research keywords with Google autocomplete suggestions, related queries, and intent classification (POST variant)
defi-yields.api.klymax402.com
Find best DeFi yield opportunities for a token (POST variant)
nft-floor.api.klymax402.com
Get NFT token rarity rank, score, and trait floor prices (POST variant)
trace.sociologic.ai
Skip trace lookup - find phones, emails, and optionally owner info
onchain.hergertsynthora.com
SYNTHORA Onchain Primitives: multichain (Base/Ethereum/Polygon/Arbitrum/Optimism) transaction receipts, tx lookup, wallet nonce, contract/proxy (EIP-1967) detection, ENS resolution, ERC20 + native balances, contract introspection. Determini…
trust-score.api.klymax402.com
Evaluate trust of a domain, URL, wallet address, or API endpoint. Returns composite score 0-100 with grade (A+ to F), verdict (trusted/moderate/suspicious/dangerous), and 5 detailed sub-scores.
perpsignals.use.x402atlas.com
Crypto perpetual-futures funding-rate scanner — the top funding rates ranked across ~100 Binance perp markets (rate, 8h %, who-pays-who direction, mark price, next funding time). Spot funding arbitrage and crowded positioning in one call.
orderbook-depth.api.klymax402.com
Analyze orderbook depth for a Uniswap V3 pool (POST variant)