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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 472 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 37–72 of 115
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.
TechAnalysis ta.lonestaroracle.xyz
q 74

Full technical analysis — 18 indicators + AI signal summary

paid API offline finance x402
$50.27 · 30d 759 tx
GBLIN Protocol gblin.digital
q 73

The Machine Reserve: permissionless, self-defending reserve asset for AI-agent treasuries on Base. Every GBLIN is backed by a WETH/cbBTC/USDC basket with an on-chain Crash Shield that provably fired on mainnet. Risk policy is public code; r…

paid API offline finance x402
$0.12 · 30d 46 tx
RealEstatePulse realestate.lonestaroracle.xyz
q 69

Data report

paid API offline finance x402
$50.27 · 30d 759 tx
FarmDash www.farmdash.one
q 69

FarmDash is an intelligence and control layer for DeFi agents and serious airdrop farmers. It handles protocol discovery, Trail Heat opportunity scoring, wallet intelligence, Sybil-risk audits, swap routing, x402 payments, MCP/OpenAPI/OpenC…

paid API offline finance x402
from $2.99
Vybe Solana Analytics API (x402) x402-api.vybenetwork.xyz
q 65

Solana on-chain analytics — token prices, top holders, wallet PnL, DEX trades, transfers, Pyth oracles. Pay-per-call USDC on Solana or Base; no API key.

paid API finance x402
$0.31 · 30d 25 tx
smartmoney.market pay.smartmoney.market
q 65

Smart money market data API for curated 13-F fund positioning, selected issuer-side Form 4 insider activity, and House PTR trading signals with JSON endpoints for agents.

paid API finance x402
from $0.01
Clustly tip.clustly.ai
q 65

Tip any X (Twitter) handle in Solana USDC via x402. Registered Clustly users receive directly to their linked Solana wallet; unregistered handles are escrowed in a Privy-custodied placeholder pocket the recipient can claim later via X OAuth…

paid API finance x402
from $0.17
TradeOS Crypto Intelligence tradeos.tech
q 65

Plain read-only crypto intelligence APIs for agents, dashboards, screeners, and research workflows.

paid API finance x402
from $0.01
PopaDex Personal Finance Reference API app.popadex.com
q 65

Read-only personal finance reference-data and calculation API for AI agents: tax estimates, disposable-income comparisons, sub-central tax rates, and social-security contribution data.

paid API finance x402
from $0.01
Greenwood Financial Intelligence api.greenwood.financial
q 65

Real-time SEC EDGAR insider trading signals, congressional STOCK Act disclosures, FEC political contribution monitoring, and compound signals — cross-referenced and scored. Pay per query via x402 on Base mainnet. No subscriptions, no API ke…

paid API finance x402
from $0.0020
PayAPI Market UK Finance Data API finance.payapi.market
q 65

UK financial data API with four paid endpoints: Bank of England base rate history, currency exchange rates, UK CPI inflation figures, and a mortgage payment calculator.

paid API finance x402
$0.48 · 30d 286 tx
Satoshi Dispatches — Lightning & x402 API dispatches.mystere.me
q 65

Pay-per-call Lightning Network and Bitcoin data API. Invoice decoding, fee estimates, routing queries, real-time node stats. Dual payment: L402 (Lightning sats) or x402 (USDC on Base). From a real mainnet Lightning node — not a proxy, not a…

paid API finance x402
from $0.0010
Trading Strategy Data strategysignals.duckdns.org
q 65

Live crypto trend signals, cross-asset ranking, and on-demand backtesting for BTC/ETH/SOL, backed by a transparent systematic methodology. Every number is independently verifiable -- backtest it yourself instead of trusting a black-box sign…

paid API finance x402
$0.51 · 30d 34 tx
Trend Signals trend-signals.com
q 65

Derived crypto trend data for autonomous agents — not a price feed. PP-SuperTrend trend state across ~1,600 crypto assets: bull/bear direction on 1D, 4H and 1W, how many bars ago each asset flipped, the band level at which the trend invalid…

paid API finance x402
from $0.02
BRS Signals brs-signals.com
q 65

BRS Signals is the science behind the ORE Signals daily plate - Bitcoin's market structure read live by three independent sensors (on-chain, off-chain, absence) every 30 seconds, with an auditable rejection funnel. Free tier, no card; $0.01…

paid API finance x402
from $0.01
stipend.sh stipend.sh
q 65

Non-custodial USDC wallet on Base that an AI agent installs unaided, with spending limits enforced in the signing path rather than in a prompt. Three paid endpoints, all payable from any wallet that can sign an EIP-3009 authorisation on Bas…

paid API finance x402
from $0.0020
TrafficMonetize BTC Prediction Feed trafficmonetize.com
q 65

Proprietary BTC 15-minute cycle Kalshi prediction feed — 740 verified trades, 82.7% win rate all-time (84.1% last 7d, 82.8% last 30d). Automated Kalshi trading bot signals delivered via x402 micropayments. Pay USDC on Base mainnet OR Solana…

paid API finance x402
from $10.00
Cofferline api.cofferline.com
q 65

Treasury and risk infrastructure for autonomous agents: SIWE wallet identity, policy-enforced conversion and gas top-ups on Base, prediction-market risk checks for Polymarket, and a double-entry ledger. Fees settle in USDC over x402 (EIP-30…

paid API finance x402
from $1.00
AgentTax www.agenttax.io
q 65

US sales tax calculation API for AI-agent commerce. Returns the combined state+local rate, taxability by work type, economic-nexus alerts and a confidence score for all 50 states + DC. Pay per call in USDC on Base via x402 ($0.005) or use a…

paid API finance x402
from $0.0050
Hype-Signal API hype.fortknoxx.pro
q 65

Sudden social-volume spikes on trending US tickers, age-tagged EARLY/MID/LATE (hype lags price, so the tag tells you early vs late). Pay-per-call in USDC via x402 on Base.

paid API finance x402
from $0.01
Central Command rtcelwjnrbmfmrywacky.supabase.co
q 65

AI-native crypto trading intelligence API with 39 pay-per-call endpoints: AI strategy agents, market data, derivatives analytics, funding/liquidation signals, counter-trade alpha, paper brokerage, and indicator generation. x402 v2 on Base U…

paid API finance x402
from $0.0005
CriptoNous Market Intelligence app.criptonous.com
q 65

CriptoNous x402 — pay-per-query crypto market intelligence. Whale accumulation vs distribution · smart-money flow · pumping/dumping narrative heat · market regime · multi-source confluence with cited sources. ownerBrief for human owners. he…

paid API finance x402
from $0.04
Ogena token risk api.ogenalabs.com
q 65

Pre-trade token safety checks for AI agents on Solana and Base: $0.005 safety ping and $0.04 deep risk reports with HMAC attestation, settled per call in x402 USDC.

paid API finance x402
from $0.0050
Qotien — API fiscal & retraite FR app.qotien.fr
q 65

API de calcul fiscal & retraite français 2026, sourcée et datée sur les 32 régimes de retraite. Chaque réponse porte ses sources et son niveau de confiance : fiable / estimé / partiel / non calculable.

paid API finance x402
from $0.05
Coil coil.trade
q 56

Market data and trading signals for AI agents — x402/USDC from $0.001, no account, no API key, no signup. 20+ endpoints: regime verdicts, 0-100 opportunity / entry-timing / hold-strength scores, ranked buy lists, sector rotation, day-trade …

paid API finance x402
$0.58 · 30d 99 tx
XRPreflight destinationpreflight.com
q 35

XRPL destination preflight, payer affordability, and payment receipt for AI agents. Before sending XRP or RLUSD to a classic r-address, check ready + blockers (only send if ready is true); check payer affordability; decode a settled Payment…

paid API finance x402
US CPI Data & Inflation Report API cpi-report-us.underscoredone.com

Gives you official United States inflation numbers from the government's BLS Consumer Price Index. Ask for the newest reading, a specific month in the past, or a whole range of months, and get back clear percentages for overall inflation an…

paid API finance x402
$1.69 · 30d 164 tx
MIND Protocol api.mindprotocol.xyz

Paid Solana data cards for autonomous agents: price signals, wallet market intelligence, and risk scoring over x402 v2 and USDC.

paid API finance x402
from $0.0080
Runbot Strategy Copilot mcp.runbot.io

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
x402stock 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.

paid API finance x402
$17.35 · 30d 694 tx
Gotobi Calendar API gotobi.hugen.tokyo

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
hlrisk hlrisk.paidapis.net

Real-time Hyperliquid BTC/ETH liquidation risk index built from live on-chain position data: notional at risk if price moves +/-1%/3%/5%, the closest position to liquidation, and current funding rate. Also serves backstop liquidation events…

paid API finance x402
$17.14 · 30d 104 tx
DESK LEAD x402 desk-x402.desk-x402-gh.workers.dev

Micropay research APIs on BSC/Base via x402 v2 (brief, wallet, pons, micros, high-ticket packs). Free catalog /.well-known/x402.json. PayTo 0x2e882B5f4D97C2acCEb7D68C97582E8c8Dae6f22. No financial advice.

paid API finance x402
from $0.01
Fin Codes API api.fincodesapi.com

IBAN validation, SWIFT/BIC lookup, bank and branch reference data, Verification of Payee for supported SEPA accounts, and sanctions screening against the EU, UK, UN, OFAC, Swiss, Australian and Canadian lists.

paid API finance x402
$0.54 · 30d 11 tx
Nodavyr nodavyr.com

Machine-payable SEC filing intelligence for AI agents. Nodavyr converts SEC filings and company facts into structured intelligence that autonomous agents can purchase on demand using x402 and USDC on Base.

paid API finance x402
$5.40 · 30d 5 tx
MioDio Meridian workers.miodiollc.com

x402 v2 DeFi Risk Passport: Aave v3 address risk, Lido stETH exit-risk, ERC-4626 vault risk. ~$0.04 USDC Exact on Base per call. Public chain data only.

paid API finance x402
$0.68 · 30d 17 tx