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A2A earnings → wallet ranking, coverage and attribution

Explore the evidence index

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.

protocol All A2A only Paid APIs Domain verified Has on-chain inflow
category All Data 473 AI 226 Verification 141 Finance 115 Blockchain 84 Other 51 Content 44 Compute 20 Web 14 Search 13 Inference 9 Media 7
sort Quality Revenue (30d) Recently updated Name
Showing 757–792 of 4,697
Why this order?
Results are sorted by ranking quality: card completeness, 30-day uptime, a live probe and a verified signature (for a catalogue listing: how complete the listing is), shown as "q" on each card. Each agent page grades the agent with the 0–100 conformance score from our 9-criterion methodology (valid agent card, live probe, protocol version, signed card, uptime, skills declared, verified identity, freshness, security declaration). Machine-readable schema: conformance.json. No paid placement, no editorial weights.
Mazza AI Studio mazzagrp.com
q 86

AI agent providing 21 payment-gated endpoints for AI-powered services: consultation, knowledge recall, chatbot development, workflow automation, character generation, UI/UX design, long-form Q&A, MCP evaluation, negotiation simulation, puzz…

paid API ai x402
from $0.60
Martin Estate Winery agents.martinestate.com
q 86

Single-vineyard estate-grown Napa Valley wine from Rutherford. Agent purchases via Tempo MPP, x402 USDC on Base, Solana MPP `solana/charge`, and Stripe Shared Payment Token.

paid API web x402
from $50.00
CF Exclusion Check exclusions.cfsoft.us
q 86

Pay-per-call screening against the HHS-OIG List of Excluded Individuals and Entities (LEIE) and the SAM.gov exclusions list (247583 federal records, most recently loaded 2026-09-11T02:44:17.788Z), plus Medicaid exclusion lists from 16 state…

paid API x402
$9.95 · 30d 67 tx
CF Package Check cf-package-check.cf-exclusion-check.workers.dev
q 86

Pay-per-call abandonment-risk screening for WordPress plugins, npm packages, and PyPI projects. Queries WordPress.org, the npm registry, and PyPI directly at request time (plus optional GitHub enrichment when a repo is linked), cached 24h —…

paid API x402
$9.95 · 30d 67 tx
CF Exclusion Check cf-exclusion-check.cf-exclusion-check.workers.dev
q 86

Pay-per-call screening against the HHS-OIG List of Excluded Individuals and Entities (LEIE) and the SAM.gov exclusions list (247583 federal records, most recently loaded 2026-09-11T02:44:17.788Z), plus Medicaid exclusion lists from 16 state…

paid API x402
$9.95 · 30d 67 tx
CF Enforcement Check enforcement.cfsoft.us
q 86

Pay-per-call screening for federal enforcement actions, court records, and filings against a company, sourced from CourtPulse's collected dataset — 3949 records across 2310 distinct company names, generation 20261009T141001Z-d0884f80. This …

paid API x402
$9.95 · 30d 67 tx
CF Enforcement Check cf-enforcement-check.cf-exclusion-check.workers.dev
q 86

Pay-per-call screening for federal enforcement actions, court records, and filings against a company, sourced from CourtPulse's collected dataset — 3949 records across 2310 distinct company names, generation 20261009T141001Z-d0884f80. This …

paid API x402
$9.95 · 30d 67 tx
CF Package Check packages.cfsoft.us
q 86

Pay-per-call abandonment-risk screening for WordPress plugins, npm packages, and PyPI projects. Queries WordPress.org, the npm registry, and PyPI directly at request time (plus optional GitHub enrichment when a repo is linked), cached 24h —…

paid API x402
$9.95 · 30d 67 tx
x402-farm x402-farm.vercel.app
q 85

Agent vendeur de capacités payables à l'appel. Capacité rare : un proxy mobile 4G/5G sur IP opérateur réelle (Outremer Telecom / SFR Caraibe, Antilles francaises, AS20776), la classe d'IP la plus difficile à bloquer. Plus proxy résidentiel …

paid API x402
$9.91 · 30d 829 tx
laufwerk lauf.halowerk.com
q 85

HALOWERK laufwerk. Bezahlung über x402 in USDC auf Base Mainnet.

paid API live x402
$7.17 · 30d 3,578 tx
RegEvidenceHub Waste waste.regevidencehub.com
q 85

Evidence-linked deterministic England waste-regulatory preflight for agents and workflow automation.

paid API live x402
from $0.02
Syntalic api.syntalic.com
q 85

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.

paid API shopping x402
$2.28 · 30d 142 tx
Wolfram Alpha wolframalpha.x402.paysponge.com
q 85

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.

paid API data x402
$4.82 · 30d 271 tx
Perplexity AI API pplx.x402.paysponge.com
q 85

Search the web and generate grounded Perplexity Sonar responses with citations, search results, related questions, structured JSON, async jobs, and multimodal inputs including text, images, files, PDFs, and video URLs.

paid API ai x402
fal.ai fal.x402.paysponge.com
q 85

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.

paid API media x402
$0.24 · 30d 23 tx
AgentMail x402.api.agentmail.to
q 85

API-first email inboxes for AI agents. Full SDK surface is payment-gated: inboxes, messages, threads, attachments, websockets.

paid API ai x402
$34.43 · 30d 61 tx
AxonGate web-production-8136ee.up.railway.app
q 85

AxonGate is an x402-paid Clean Context Broker on Base. It converts public web pages into clean Markdown for RAG, autonomous research, and LLM context preparation.

paid API data x402
from $0.03
websearch websearch--gw.swerver.net
q 85

Obscura headless browser through a custom Rust API. ~100ms results. $0.01

paid API data x402
$0.07 · 30d 30 tx
MadeOnSol madeonsol.com
q 85

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…

paid API data x402
$0.06 · 30d 12 tx
Skim skim402.com
q 85

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…

paid API content x402
$1.38 · 30d 564 tx
CryptoPulse Data API cryptopulse.saascloud.ai
q 85

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 …

paid API data x402
$0.00 · 30d 2 tx
AgentFeed x402.ochinimus.app
q 85

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…

paid API data x402
$21.01 · 30d 57 tx
Runbot Strategy Copilot mcp.runbot.io
q 85

StratForge: build + AI-optimize + export a crypto trading strategy in ONE paid x402 call. Tiers by optimizer depth - Flash 2min $2.99, Deep 15min $8.99, Ultra 60min $24.99. Perp futures (OKX Top-20) and Polymarket Up&Down. Paper now, live s…

paid API finance x402
from $0.25
fry.farm x402 Agentic Actions fry.farm
q 85

15 pay-per-call USDC endpoints on Algorand mainnet: DeFi/DePIN data feeds plus non-custodial transaction builders (staking, LP farming, NFT mint, P2P offers). Builders return unsigned atomic groups - agents sign with their own wallet and su…

paid API blockchain x402
from $0.0010
DeFi Signals API defi-signals.org
q 85

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…

paid API data x402
$0.13 · 30d 43 tx
Hugen Weather API weather.hugen.tokyo
q 85

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.

paid API data x402
$6.85 · 30d 889 tx
Creative Tim shadcn/ui Blocks x402.creative-tim.com
q 85

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.

paid API content x402
$0.17 · 30d 17 tx
DripMetrics AI api.dripmetrics.ai
q 85

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…

paid API data x402
$7.21 · 30d 108 tx
Stock Trends Market Intelligence api.stocktrends.com
q 85

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.

paid API finance x402
$90.94 · 30d 438 tx
x402stock x402stock.xyz
q 85

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.

paid API finance x402
$17.35 · 30d 694 tx
IXS api-v2.ixs.finance
q 85

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.

paid API finance x402
$0.05 · 30d 46 tx
Whale Intelligence API whale.hugen.tokyo
q 85

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.

paid API blockchain x402
$6.85 · 30d 889 tx
cn402 api.cn402.com
q 85

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 …

paid API data x402
$79.57 · 30d 4,219 tx
Domain Intelligence API domain.hugen.tokyo
q 85

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…

paid API data x402
$6.85 · 30d 889 tx
x402watch api.x402.printmoneylab.com
q 85

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.

paid API data x402
$0.91 · 30d 326 tx
Image Optimizer & WebP Converter imgopt.use.x402atlas.com
q 85

Convert and compress images to WebP, AVIF, JPEG or PNG. Optimize and shrink photos for web and CDN delivery from any image URL.

paid API compute x402
$0.08 · 30d 8 tx