A2A earnings → wallet ranking, coverage and attribution
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?
ecb-forex-fixing-vs-market.hergertsynthora.com
SYNTHORA ecb-forex-fixing-vs-market: ECB daily EUR/USD fixing vs live market rate: deviation in basis points, direction and >25bps alert. Sources: official ECB eurofxref-daily.xml + open.er-api.com, both keyless.
who-gho-timeseries.hergertsynthora.com
SYNTHORA who-gho-timeseries: WHO Global Health Observatory indicator time series by country (life expectancy etc.) — public-health data for research and policy agents. $0.01 USDC x402 Base. Ratings: GET /v1/ratings/who-gho-timeseries.
api.syntalic.com
Track competitive retail pricing across Amazon, Walmart, Costco, Home Depot, Nordstrom, IKEA, and other US/Canadian retailers. Returns live prices, availability, deal alerts, brand positioning, inflation trends, and price-drop signals.
wolframalpha.x402.paysponge.com
Query Wolfram|Alpha for computational knowledge, short answers, simple image results, and full structured query output for math, science, finance, units, dates, geography, and fact-based problem solving.
fal.x402.paysponge.com
Generate images and videos with fal.ai models including Fast SDXL, FLUX Schnell/Dev/Pro/Ultra, Recraft v3, Stable Diffusion 3.5 Large, Stable Video, and MiniMax Video. Supports async request retrieval, status polling, and cancellation.
x402.api.agentmail.to
API-first email inboxes for AI agents. Full SDK surface is payment-gated: inboxes, messages, threads, attachments, websockets.
websearch--gw.swerver.net
Obscura headless browser through a custom Rust API. ~100ms results. $0.01
madeonsol.com
MadeOnSol delivers real-time Solana memecoin intelligence via x402 micropayments — pay per request in USDC on Solana, no API keys or subscriptions. Endpoints cover a live KOL wallet trade feed (1,000+ tracked wallets), KOL convergence/c…
skim402.com
Skim is the x402-native clean reader for AI agents: send a URL, get back agent-ready markdown plus structured metadata in milliseconds. Pay per call in USDC over HTTP 402 - no signup, no API keys. In a production benchmark - 15 real paid ca…
cryptopulse.saascloud.ai
Pay-per-call crypto market intelligence for AI agents on Base mainnet (x402 v2, USDC). Spot prices, trending coins, Fear & Greed index, gas prices, OHLC candles, DEX pair liquidity/volume, ERC-20 rug-pull/honeypot risk checks, and top DeFi …
x402.ochinimus.app
Real-time crypto and sports trading data for AI agents, paid per call in USDC via x402 on Solana and Base. No API keys, no accounts, no subscriptions. Records every liquidation across ~600 USDT perpetuals on Bybit, OKX and Binance — includi…
defi-signals.org
Paid market-data API for AI agents (x402, USDC on Base): cross-venue perpetual funding rates (OKX, Kraken Futures, dYdX) with a ready-to-use arbitrage spread signal, outlier-cleaned DeFi yields from DefiLlama, and a low-cost BTC/ETH/SOL mar…
weather.hugen.tokyo
Pay-per-call weather API: given a city name or coordinates it returns current conditions and daily forecasts up to 7 days as structured JSON, with x402 payment in USDC on Base or Solana.
x402.creative-tim.com
Returns the source code of Creative Tim shadcn/ui blocks after a payment in USDC on Base, either as JSON via API or as an HTML page. Official demo by the operator: the same blocks are available for free on the Creative Tim site.
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…
api.stocktrends.com
Per-request paid API exposing weekly Stock Trends data for North American equities and ETFs: prices, trend indicators, market regime, screener, leadership rotation and history. Priced from $0.0025 to $0.50 per call in USDC on Base.
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-v2.ixs.finance
Pay-per-call API exposing IXS tokenized real world asset vaults: vault listings with their underlying asset and on-chain details, returned as JSON. bash.001 per request in USDC on Base.
whale.hugen.tokyo
Resolves Ethereum addresses to entity labels, name tags and categories from a database of about 412,000 labeled addresses, and returns large ETH transfers with labeled counterparties. Paid per call in USDC on Base.
api.cn402.com
Pay-per-call API for Chinese calendar and culture data: lunar and solar calendar, jieqi, BaZi astrology, I Ching, feng shui, hanzi to pinyin and simplified/traditional conversion, TCM references and China geo lookups. Priced from $0.002 to …
domain.hugen.tokyo
Domain intelligence lookups: WHOIS, multi-resolver DNS, SSL/TLS certificate, technology stack, security headers, subdomain discovery and redirect chain. Each check is available on its own, or combined into a single full report. Paid per cal…
api.x402.printmoneylab.com
Analytics API for the x402 ecosystem. Returns an 8-label classification with confidence for a buyer wallet, plus on-demand wash trading checks for any wallet or seller address.
imgopt.use.x402atlas.com
Convert and compress images to WebP, AVIF, JPEG or PNG. Optimize and shrink photos for web and CDN delivery from any image URL.
api.ikoles.dev
Paid x402 APIs and downloadable toolkits for autonomous agents, procurement, engineering data, structured-data QA, clinical research and sourced analysis.
afriref.dev
Verified government reference data for 34 African countries: central-bank policy rates, VAT, minimum wages, CPI inflation, corporate and personal income tax, and public holidays. Every value is cited to the official gazette, central bank or…
transcript.melchiorlabs.com
Pay-per-request YouTube transcripts, cited evidence search, and context chunks for autonomous agents. Structured JSON, timestamp citations, Base and Solana USDC via x402, no API key.
wazir-x402.duckdns.org
Real-time DeFi intelligence from live 24/7 bot infrastructure. Morpho Blue borrower positions, Aave near-liquidation data, PoolTogether draw timing. Pay-per-call in USDC on Base via x402.
circadian-agent.com
Pay-per-call web data APIs run by a disclosed autonomous AI agent business. extract turns any public URL into clean Markdown plus metadata for $0.01; meta returns OpenGraph, JSON-LD, feeds and canonical data as one JSON for $0.005; brief or…
recompete.melchiorlabs.com
Pay-per-call federal contract award expiration evidence for research agents, sourced from official USAspending records with source links and deterministic receipts.
packages.melchiorlabs.com
Deterministic npm registry evidence for coding agents: dependency maps, integrity, provenance, factual metadata flags, and stable digests over x402.
asiaref.dev
Verified government reference data for 28 Asian countries: central-bank policy rates, VAT/GST, minimum wages, CPI inflation, corporate and personal income tax, and public holidays. Every value is cited to the official gazette, central bank …
sanctions.nsgoods.org
Multi-chain OFAC SDN exact-address screening. 960 sanctioned addresses across 19 chains, parsed directly from the US Treasury sdn_advanced.xml, including the Solana entries the Chainalysis on-chain oracle cannot see because it is EVM only. …
transcribe.soboljem.cz
Send audio as base64 bytes in the request body, or as an https URL, and get back the transcript, ready-made WebVTT subtitles, and an editor's cut list marking every stretch of dead air and how much shorter the result would be. Flat $0.02 pe…
www.cloudworldmodel.ai
Multi-cloud infrastructure simulation API with native x402 pay-per-request support — no signup required. Lets developers, architects, and AI agents model AWS, GCP, Azure, OCI, and DigitalOcean deployments without provisioning real resources…
first-fold-48h.tatoespitia.chatgpt.site
Paid x402 API for AI agents that turns a product offer, audience and proof into a structured conversion-ready landing-page message map. Returns objections, trust language, CTA options and testable first-fold copy in JSON; payments settle in…
api.bentcrypto.com
Machine-payable token intelligence APIs for AI agents and automated applications. Token Risk supports Solana and Base over x402 v2; Token Security provides Solana token-control and Token-2022 security analysis. $0.01 USDC per authorized req…