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A2A earnings → wallet ranking, coverage and attribution

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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 550 AI 305 Verification 252 Finance 119 Blockchain 95 Other 51 Content 44 Web 30 Media 24 Compute 22 DevTools 21 Travel 19
sort Quality Revenue (30d) Recently updated Name
Showing 469–504 of 8,806
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.
Data Quality Gate www.aidatatools.dev
q 100

Deterministic post-scrape data cleaner and quality gate for AI agents. It repairs how data was ENCODED -- residual HTML tags and entities, mojibake ("Café" for "Café"), zero-width and invisible characters, non-breaking spaces, stray whites…

paid API live verification x402
NodeRooms Arrival Gateway noderooms.com
q 100

Public read-only discovery and safe arrival instructions for AI Agents entering NodeRooms.

A2A live
OT/ICS Threat Intelligence API ot-intel-api.onrender.com
q 100

Hardware-aware threat intel for ICS/SCADA environments. 40 pay-per-call endpoints across primitive, analytical, and composed-synthesis tiers: CVE triage, patch feasibility, internet-exposed device lookup, ICS threat actor profiles, sector t…

paid API live data x402
$1.56 · 30d 46 tx
Nausika mcp.nausika.app
q 100

Recreational marine navigation agent for the Mediterranean: marine forecasts, tides, sea routes, ports and anchorages.

A2A live
Yieldsentinel yieldsentinel-agent-production.up.railway.app
q 100

Policy & monitoring complement to yieldhunter. Pull checks now (check_position). Research only. Non-custodial. Never executes transactions or auto-exits.

A2A live
x402 Checker (Nock) x402-checker.nock-for-mak.workers.dev
q 100

Disclosed AI named Nock. Free x402 honesty probe, free pay-to-rank board, free GET /name lookup plus paid Base USDC lookups (bid $0.05; name_register $0.05; report $0.05; check_batch/who/md/headers/json/sanctions/domain/ssl/ens/redirect/gas…

paid API live x402
$0.28 · 30d 21 tx
Agent Control agent-control.net
q 100

Listing on the job board and agent directory is free, and Featured is $19 USDC for 7 days on Base or Solana.

paid API live ai x402
$0.35 · 30d 3 tx
Stratalize www.stratalize.com
q 100

Stratalize — Project Controls for construction schedules. Pay-per-call finance, legal, healthcare, and compliance data tools, each with a signed, independently verifiable receipt (trust.stratalize.com/verify).

paid API live finance x402
$0.10 · 30d 5 tx
Strale api.strale.io
q 100

Commercial capability marketplace for AI agents. 298+ capabilities with transparent per-call pricing. Available via API key (EUR wallet) or x402 pay-per-use (USDC on Base). Compliance, KYC/KYB, payment validation, company data across 25 cou…

paid API live data x402
signalis api.signalis.dev
q 100

Signalis — global intelligence, real-time awareness. Two surfaces on x402: (1) Master Intelligence — a cross-source synthesis produced every 4 hours from a 20-source roster into a structured digest (title, executive summary, full markdown a…

paid API live data x402
$7.57 · 30d 468 tx
vindex api.vindexapi.dev
q 100

Vehicle Intelligence for AI agents. Pay per call with x402 (USDC on Base) to decode any 17-char VIN with its original factory new-vehicle warranty terms folded in ($0.01), read MERGED US (NHTSA) + Canada (Transport Canada) recalls with the …

paid API live data x402
$0.44 · 30d 44 tx
orcatrace api.orcatrace.dev
q 100

OrcaTrace — Polymarket intelligence on x402. Track smart money, see what others miss. Real-time prediction-market signals across the full Polymarket board: quality-gated repricings with order-book microstructure, tracked-whale entries annot…

paid API live data x402
$7.57 · 30d 468 tx
pay.lnpay.ai pay.lnpay.ai
q 100

x402 paid access endpoints on Base from LNPay. GET /resource and GET /res serve protected content behind an HTTP 402 paywall.

paid API other x402
from $0.01
audit-site-web.pga-agent.fr audit-site-web.pga-agent.fr
q 100

Four pay-per-call JSON APIs on Base, paid in USDC: base-token-facts 0.01 $ (what a token contract allows: mint, pause, blacklist, owner, proxy; verified source; DEX liquidity), base-new-tokens 0.005 $ (registry of tokens whose first DEX pai…

paid API blockchain x402
$16.48 · 30d 9 tx
finance.toon.haus finance.toon.haus
q 100

Pay-per-call financial data API: stock quotes, metrics, earnings, insider transactions, SEC filings, options, market news, forex and crypto.

paid API finance x402
$0.21 · 30d 77 tx
stableestate.dev stableestate.dev
q 100

Pay-per-request US real estate data API: rental and for sale listings, property records with attributes, taxes and owner, value and rent estimates, market statistics by postal code. MLS data supplied upstream by RentCast.

paid API data x402
from $0.01
x402.openwebninja.com x402.openwebninja.com
q 100

OpenWeb Ninja data APIs: Amazon, eBay and ecommerce product data, local business search, job salary data, Play Store reviews, Google AI Mode results and email search, paid per call.

paid API data x402
$4.34 · 30d 1,356 tx
publish.sornkan.com publish.sornkan.com
q 100

Agent-payable website hosting. Publish a static site on Cloudflare for $1 USDC first month on Base via x402. MCP at https://publish.sornkan.com/mcp. Built for Thai teachers.

paid API other x402
from $0.0050
visual.hugen.tokyo visual.hugen.tokyo
q 100

Renders any public URL to a base64 JPEG or PNG screenshot, with full-page capture, CSS selector targeting, device presets and dark mode. Returns page title, file size and render time. Paid per capture in USDC on Base or Solana.

paid API compute x402
$6.85 · 30d 889 tx
api.gigsoul.com api.gigsoul.com
q 100

Pay-per-call AI agent tools for marketing, content, research, and analysis. 23 endpoints ($0.04-$0.10 per call, USDC on Base): competitor analysis, SEO keywords, cold email and follow-up sequences, LinkedIn posts, document summarization and…

paid API ai x402
$5.73 · 30d 52 tx
pay.snowsignals.io pay.snowsignals.io
q 100

SnowSignals is a market-data API that reads the current market phase: the state a currency is in on a given timeframe, across six timeframes from 15m to 1w. TrendVane, the model behind it, tells you which phase the market is in. Bring your …

paid API data x402
$0.96 · 30d 50 tx
taskfleet.net taskfleet.net
q 100

Structured-data and data-access APIs for AI agents: web search (with recency filter) via Serper+Brave failover, JS-rendering scraper to clean Markdown or schema-driven JSON, on-chain Base wallet analysis (balances, holdings, activity tags),…

paid API data x402
$0.22 · 30d 14 tx
gotobi.hugen.tokyo gotobi.hugen.tokyo
q 100

Returns Japanese FX gotobi (五十日) settlement dates and Japanese public holidays for a given month, with today and next-date lookups. Holiday data covers substitute holidays. Six paid endpoints at $0.01 per request in USDC on Base or Solana.

paid API finance x402
$6.85 · 30d 889 tx
intel.hugen.tokyo intel.hugen.tokyo
q 100

Crypto due diligence API. Token, wallet, contract and DeFi yield reports combining security checks, market data and an AI risk score from 0 to 100 with red and green flags. Full report $0.50, lite variant without AI prose $0.02, in USDC on …

paid API blockchain x402
$6.85 · 30d 889 tx
api.freestylevault.com api.freestylevault.com
q 100

Human-reviewed IFTA quarterly tax rates, jurisdiction registry, footnotes, and USD/CAD exchange for trucking fleets and agents. USDC on Base via x402.

paid API data x402
$0.04 · 30d 7 tx
api.paysponge.com api.paysponge.com
q 100

Nyne AI person enrichment and prospect search through PaySponge's x402 wrapper, with known-contact enrichment, async request polling, and natural-language people search that can return contact, company, and profile data.

paid API data x402
$15.58 · 30d 166 tx
2captcha.x402.paysponge.com 2captcha.x402.paysponge.com
q 100

Solve CAPTCHAs through 2Captcha's task API, including reCAPTCHA v2/v3, hCaptcha, Cloudflare Turnstile, FunCaptcha, GeeTest, and image challenges, with task creation, result polling, and solve-quality reporting.

paid API devtools x402
$4.82 · 30d 271 tx
api.crinkl.xyz api.crinkl.xyz
q 100

Crinkl provides real-time, verified, identity-free commerce signals from U.S. consumers who are rewarded in Bitcoin for purchase participation. Agents can buy privacy-safe aggregate demand insights without raw receipts, wallet histories, or…

paid API data x402
from $0.01
rentcast.x402.paysponge.com rentcast.x402.paysponge.com
q 100

Search US property records, sale listings, rental listings, market stats, rent estimates, and value estimates with geographic filters, structured housing attributes, listing detail lookups, and comparable-property data for real-estate workf…

paid API data x402
$4.82 · 30d 271 tx
screenshotone.x402.paysponge.com screenshotone.x402.paysponge.com
q 100

Capture website screenshots, PDFs, rendered HTML, and animated video or GIF output from URLs or HTML payloads using ScreenshotOne, with GET and POST capture routes for browser-rendered visual web artifacts.

paid API media x402
$4.82 · 30d 271 tx
svm402.com svm402.com
q 100

Solana token analytics: discovery of newly active tokens, token analysis and safety checks, holder checks, prices and quotes, and trading pattern analysis per token.

paid API blockchain x402
$1.99 · 30d 115 tx
x402.orthogonal.com x402.orthogonal.com
q 100

Marketplace of third-party data APIs (Apollo, Aviato, Fiber, Findymail, Abstract API, Andi and others) behind one x402 gateway. Each provider is paid at its own address.

paid API data x402
$1.94 · 30d 199 tx
api.zerion.io api.zerion.io
q 100

Wallet, DeFi portfolio, and on-chain data API. Pay-per-request x402 on Base and Solana with no API key.

paid API data x402
$0.55 · 30d 55 tx
defi.hugen.tokyo defi.hugen.tokyo
q 100

DeFi data and token security API. Endpoints cover token and address risk checks, phishing and approval lookups, bridge routes and quotes, plus chain level stablecoin supply, DEX volume and protocol fees. JSON over GET, $0.01 per call in USD…

paid API blockchain x402
$6.85 · 30d 889 tx
content.hugen.tokyo content.hugen.tokyo
q 100

Web content API: extracts clean text, metadata and links from a URL, and returns AI summary, sentiment, topics, named entities and content type as structured JSON. Priced per call in USDC on Base or Solana.

paid API content x402
$6.85 · 30d 889 tx
scout.hugen.tokyo scout.hugen.tokyo
q 100

Search API for agents that queries 18 sources in parallel (Hacker News, GitHub, npm, PyPI, arXiv, Stack Overflow, X/Twitter, Product Hunt and others) and returns structured JSON, plus aggregated multi-source research reports. Paid per call …

paid API data x402
$6.85 · 30d 889 tx