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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.

protocol All A2A only Paid APIs Verified owner Has on-chain revenue
category All data 32 inference 9 search 7 infra 7 social 5 media 5 travel 2 storage 2 trading 1 other 1
sort Quality Revenue (30d) Recently updated Name
Showing 1981–2016 of 3,791
Why this order?
Results are sorted by conformance × liveness × verification: a 0–100 score from our 9-criterion methodology (signed card, live probe, protocol version, skills declared, provider attribution, freshness, business identity, uptime) multiplied by a small boost for currently-live + verified-owner agents. Machine-readable schema: conformance.json. No paid placement, no editorial weights.
polymarketeer.vercel.app polymarketeer.vercel.app

List all available Polymarket tags/categories with optional event counts

paid API
qr-code.api.klymax402.com qr-code.api.klymax402.com

Generate a QR code image from text or URL

paid API
sgpropertydata.com sgpropertydata.com

Singapore landed-house market-segment price stats

paid API
tech-enrichment.api.klymax402.com tech-enrichment.api.klymax402.com

Detect technologies used on a website

paid API
token-safety.api.klymax402.com token-safety.api.klymax402.com

Check token contract safety and risk score

paid API
solana-fees.api.klymax402.com solana-fees.api.klymax402.com

Priority fee estimates for Solana transactions

paid API
company-enrichment.api.klymax402.com company-enrichment.api.klymax402.com

Enrich a company from its domain name

paid API
hyperliquid-whales.api.klymax402.com hyperliquid-whales.api.klymax402.com

Get aggregated whale positions on Hyperliquid

paid API
sentiment-analyzer.api.klymax402.com sentiment-analyzer.api.klymax402.com

Analyze sentiment of a single text

paid API
api.kodo.fun api.kodo.fun

Kodo - AI Creative Toolkit for images and videos

paid API
ainalyst-api.xyz ainalyst-api.xyz

Click the button

paid API
email-verification.api.klymax402.com email-verification.api.klymax402.com

Verify a single email address

paid API
tibbirx402.fun tibbirx402.fun

Mint 1.5M tokens for $1 USDC

paid API
api.carbon-cashmere.de api.carbon-cashmere.de

Get full Bittensor subnet metagraph snapshot — 28 summary fields (block, gini, top5 share, emissions, validator dominance) plus per-neuron array of up to 256 miners with stake, trust, incentive, emission, consensus, dividends, validator_per…

paid API
www.agentres.dev www.agentres.dev

Paid resource ($0.1 USDC)

paid API
clink-lithium-vault.fly.dev clink-lithium-vault.fly.dev

Lithium Research Vault - cited narrative on any lithium mining company or mine, written only from primary-source vault data. Covers spodumene and brine producers across hardrock and brine cost curves: production, AISC, reserves, ownership, …

paid API
address-validator.api.klymax402.com address-validator.api.klymax402.com

Parse, validate, and normalize a postal address

paid API
www.datadon.xyz www.datadon.xyz

Send a hi to DataDon, and DataDon will say hi back! This won’t give you any tokens; it’s just the first time DataDon entering the world of x402. 向 DataDon 打个招呼,DataDon 会回你一句 hi!这不会给你任何代币;这只是 第一次将DataDon 领入 x402 的世界。

paid API
stableapify.dev stableapify.dev

Fetch items from an Apify Actor run default dataset. Body: { "token": "..." } from actors/call. First call per wallet pays via x402 proportional to Apify usage (capped at $1.00); SIWX replay is free. Poll /api/actors/status until terminal —…

paid API
touchstone.locomot.io touchstone.locomot.io
paid API
web-scraper.api.klymax402.com web-scraper.api.klymax402.com

Scrape a URL and convert to clean markdown

paid API
econdash.org econdash.org

EconDash economic data API (M2M)

paid API
base-rugcheck.vercel.app base-rugcheck.vercel.app

Token safety check with honeypot simulation, buy/sell tax, holder concentration and deployer privileges (GO/CAUTION/DANGER) for EVM tokens on eth, bnb, or base.

paid API
api.vevang.com api.vevang.com

AI Video Producer — turn one prompt into a finished, on-brand short video (script, AI voiceover, cinematic visuals, cut), up to 15s. POST JSON: prompt + a brand or url. Returns a ready-to-post mp4 URL.

paid API
verifier.vevang.com verifier.vevang.com

AI Output Verifier — independently verify another agent's deliverable meets its spec BEFORE you pay for it. POST JSON: deliverable (URL or content) + spec. Checks integrity (reachable, valid media, duration, audio) and judges spec-satisfact…

paid API
api.stelardigital.com api.stelardigital.com

Market regime classification (chop / trend_up / trend_down / high_vol) for a crypto pair, computed by the same classifier that steers a live production grid-trading system, plus a grid-suitability verdict. 1h klines, 30-day volatility basel…

paid API
visibility.vevang.com visibility.vevang.com

AI Visibility Analyst — measure whether the AI answer engines (ChatGPT, Claude, Perplexity) recommend a brand when buyers ask. POST JSON: brand (+ optional url/category). Returns a 0-100 visibility score, per-question breakdown, the competi…

paid API
api.x-router.ai api.x-router.ai

Text-to-Image Generation

paid API
gblin-sentinel.vercel.app gblin-sentinel.vercel.app

Actionable GBLIN treasury recommendation (invest/hold/reduce/defer) with confidence score and suggested allocation percentage, driven by live on-chain Crash Shield state on Base. Combines Chainlink price risk, treasury analytics and drawdow…

paid API
orionkr.xyz orionkr.xyz

Cheapest starter checkout for narrow wallet-risk probes. Pay 0.005 USDC once; no query params required for a catalog-probe sample. Returns wallet exposure, unsafe token concentration, suspicious counterparties, portfolio risk, and the exact…

paid API
x402-echo-service.fly.dev x402-echo-service.fly.dev

Store a message and receive a UUID handle for retrieval

paid API
nft-alpha-x402.fly.dev nft-alpha-x402.fly.dev

NFT Alpha: OpenSea NFT market signals for an OpenSea collection slug. Body: { collection: string, collections?: string[] }. Returns listing/sale/bid counts, price stats, sell-through, and signals such as HIGH_DEMAND, UNDERPRICED_LISTING, BI…

paid API
cryptointel-production.up.railway.app cryptointel-production.up.railway.app

V0 — Goal-to-plan engine for travel abroad. Parses an objective like "trip to Japan 15 days", finds matching eSIM products with real live pricing from Bitrefill, returns a recommendation + estimated budget. Scope limited to travel/eSIM goal…

paid API
mcp.stg.yield.xyz mcp.stg.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.

paid API
x402-company-api-production.up.railway.app x402-company-api-production.up.railway.app

Search UK companies by name via Companies House — returns matches with number, status, type, incorporation date, address.

paid API
agent-api-task.vercel.app agent-api-task.vercel.app

Generate an EIP-681 crypto payment link for end-user wallets. Agent pays a micro-fee via x402. Generic mode: pass payTo and token in the body. Optional mode=botpay uses BotPay vending infrastructure.

paid API