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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 549 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 73–108 of 549
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.
SuperDial API superdial-9fcd9934.main-kill-isr.mintlify.me
q 90

Submit requests and retrieve results programmatically.

A2A data
TUROS docs.secapi.ai
q 90

Build with SEC filing data, macro data, factors, and repeatable investment analysis through TUROS MCP or one API.

A2A data
LoyaltyVIP loyaltyvip.com
q 90

Casino player intelligence. Search the public U.S. casino directory (rewards programs + tier ladders), and with a user-provided API key, read and analyze a player's own loyalty data: tiers, trips, sessions, theo/ADT, offers, tax docs, and h…

A2A data
OnchainPulse onchainpulse-nine.vercel.app
q 90

Intelligence API for the onchain financial transition. Decodes legislation, tracks real world asset tokenization in depth (yield comparison, issuer/redemption risk, tokenized gold), models sector impact scenarios, guides onchain integration…

paid API data x402
$76.74 · 30d 626 tx
Real-time on-chain DEX price, liquidity and 24h volume for any pool/token on any chain via dex-pair-price.hergertsynthora.com
q 88

Real-time on-chain DEX price, liquidity and 24h volume for any pool/token on any chain via GeckoTerminal. For DeFi routing agents. Free source. $0.01 USDC via x402 on Base. SYNTHORA. First call FREE per wallet — send header X-WALLET: 0x<add…

paid API data x402
$3.02 · 30d 127 tx
Real-time and historical OHLCV candles (open/high/low/close/volume) for any crypto pair, a ohlcv-candles.hergertsynthora.com
q 88

Real-time and historical OHLCV candles (open/high/low/close/volume) for any crypto pair, any interval. For backtesting and signal agents. Free source. $0.01 USDC via x402 on Base. SYNTHORA. First call FREE per wallet — send header X-WALLET:…

paid API data x402
$3.02 · 30d 127 tx
SYNTHORA fear-greed fear-greed.hergertsynthora.com
q 88

SYNTHORA fear-greed: indice de miedo/codicia con la VARIACION frente a ayer y el cruce de banda, no solo el valor. Fuente: alternative.me, fechada y con hash.

paid API data x402
$3.02 · 30d 127 tx
Real-time perpetual funding rates + mark price for any Binance futures symbol. Essential f funding-rates.hergertsynthora.com
q 88

Real-time perpetual funding rates + mark price for any Binance futures symbol. Essential for delta-neutral and basis-trading agents. Free source, deterministic, instant JSON. $0.01 USDC via x402 on Base. SYNTHORA. First call FREE per wallet…

paid API data x402
$3.02 · 30d 127 tx
Full DNS + WHOIS/RDAP domain report in one call. Resolves A, AAAA, MX, TXT, NS, CNAME, SOA dnsdomain.hergertsynthora.com
q 88

Full DNS + WHOIS/RDAP domain report in one call. Resolves A, AAAA, MX, TXT, NS, CNAME, SOA and DNSSEC over DNS-over-HTTPS, plus structured WHOIS via RDAP (registrar, registration/expiration/updated dates, EPP status, nameservers), and retur…

paid API data x402
SYNTHORA cryptonews cryptonews.hergertsynthora.com
q 88

SYNTHORA cryptonews: real-time crypto news headlines with sentiment, ranked by importance. Aggregates keyless RSS feeds (CryptoPanic, CoinDesk, CoinTelegraph, Decrypt, Bitcoin Magazine) into deduplicated, freshness-and-source-weighted top h…

paid API data x402
$3.02 · 30d 127 tx
SYNTHORA Perps Snapshot perps.hergertsynthora.com
q 88

SYNTHORA Perps Snapshot: live Hyperliquid perpetual futures snapshot per asset — mark price, oracle price, hourly funding rate (with 8h and APR derivations), open interest (USD), premium and 24h volume for 230+ perps, keyless. Complements t…

paid API data x402
$3.02 · 30d 127 tx
SYNTHORA market-dominance market-dominance.hergertsynthora.com
q 88

SYNTHORA market-dominance: BTC and ETH market dominance contrasted between TWO independent providers (CoinGecko and Coinlore), reporting the discrepancy in percentage points and a confidence grade — you get not just the number but whether t…

paid API data x402
$0.10 · 30d 25 tx
SYNTHORA defidata defidata.hergertsynthora.com
q 88

SYNTHORA defidata: deFi market-data feed: perp open interest, funding rate, mark price and a directional signal across top assets (BTC/ETH/SOL/…), plus optional per-asset verdict. Deterministic, Ed25519-signed. SYNTHORA. First call FREE per…

paid API data x402
$3.02 · 30d 127 tx
002 call (cheaper + fewer round-trips than buying each separately) 5 live datasets, partia derivbundle.hergertsynthora.com
q 88

002 call (cheaper + fewer round-trips than buying each separately) 5 live datasets, partial degradation (never fails whole), Ed25519-signed First call FREE per wallet via X-WALLET header SYNTHORA.

paid API data x402
$3.02 · 30d 127 tx
Wikipedia article summary for any topic wikipedia.hergertsynthora.com
q 88

Wikipedia article summary for any topic: title, extract, thumbnail, canonical URL. Instant knowledge lookup for agents. Deterministic, no key. $0.01 USDC via x402 on Base. First 3 calls FREE per wallet — send header X-WALLET: 0x<addr>. No c…

paid API data x402
Real-time peg deviation for USDT/USDC/DAI/FRAX and more vs $1.00, with depeg risk flag. Pr stablecoin-peg.hergertsynthora.com
q 88

Real-time peg deviation for USDT/USDC/DAI/FRAX and more vs $1.00, with depeg risk flag. Pre-trade safety for treasury and payment agents. Free source. $0.01 USDC via x402 on Base. SYNTHORA. First 3 calls FREE per wallet — send header X-WALL…

paid API data x402
Live order book depth and liquidity (bid/ask walls, spread, imbalance) for any crypto pair orderbook-liquidity.hergertsynthora.com
q 88

Live order book depth and liquidity (bid/ask walls, spread, imbalance) for any crypto pair. For execution and slippage-aware agents. Free source. $0.01 USDC via x402 on Base. SYNTHORA. First 3 calls FREE per wallet — send header X-WALLET: 0…

paid API data x402
Real-time trending coins by search interest and momentum, with rank and price change. Disc crypto-trending.hergertsynthora.com
q 88

Real-time trending coins by search interest and momentum, with rank and price change. Discovery signal for narrative/momentum agents. Free source. $0.005 USDC via x402 on Base. SYNTHORA. First 3 calls FREE per wallet — send header X-WALLET:…

paid API data x402
Real-time circulating supply and chain breakdown for all major stablecoins via DefiLlama. stablecoin-mcap.hergertsynthora.com
q 88

Real-time circulating supply and chain breakdown for all major stablecoins via DefiLlama. Systemic-risk signal for treasury agents. Free source. $0.01 USDC via x402 on Base. SYNTHORA. First 3 calls FREE per wallet — send header X-WALLET: 0x…

paid API data x402
scrape402 x402.shizu.me
q 86

Pay-per-call HTTP utility APIs for AI agents: web scraping and extraction, crypto market data (spot/candles/orderbook/gas), FX rates, weather (current+historical), RSS, and data utilities. Paid via x402 USDC micropayments on Base — no signu…

paid API data x402
$0.97 · 30d 178 tx
fetcher.sh fetcher.sh
q 86

HTTP web-data API. Search or fetch public data from Twitter/X (x.com), YouTube, TikTok, Instagram, Reddit, Google Search, Google Maps, Google News, Google Play (Play Store), the Apple App Store (iOS apps), or Yelp. Pay per call in USDC (x40…

paid API data x402
$8.98 · 30d 719 tx
Search prediction markets ACROSS PLATFORMS (Polymarket + Kalshi) in one call polymarket-markets.hergertsynthora.com
q 85

Search prediction markets ACROSS PLATFORMS (Polymarket + Kalshi) in one call: live prices, implied probability, volume, liquidity, end date and market conviction. Server-side search that actually finds the market (bitcoin, fed, election, ge…

paid API data x402
$3.02 · 30d 127 tx
BABYDOV Agent Microstore — Paid Work & Web Evidence APIs vps-62-120.cloudhosting.lv
q 85

Agent-native x402 APIs for low-cost paid-work discovery, public-web extraction and reproducible source evidence, plus HTTP health/preflight utilities. No account or API key; pay per call in USDC. Canonical stable VPS origin.

paid API data x402
$94.34 · 30d 516 tx
Influship API docs.influship.com
q 84
A2A data
Veezee veezee.io
q 84

LinkedIn, Reddit, and X (formerly Twitter) data for AI agents: structured profiles, subreddits, posts, tweets, and search over MCP or REST.

A2A data
SociaVault API docs.sociavault.com
q 84
A2A data
Tako Docs tako.com
q 84

Data visualization and research platform. Search Tako's curated data and the web for citation-backed knowledge cards, get cited answers, download the data behind a result, chart your own CSV, and run deep-research agents.

paid API data x402
$1.74 · 30d 43 tx
Abstract API docs.abstractapi.com
q 84
A2A data
Criteo Docs developers.criteo.com
q 84
A2A data
RevenueBase docs.revenuebase.ai
q 84
A2A data
Pohjola API pohjola-api.nousulabs.workers.dev
q 84

Agent-native API for Finnish public company data via YTJ. Pay-per-call $0.01 USDC over x402. Available as REST and MCP.

A2A data x402
from $0.01
Paubox API Docs docs.paubox.com
q 84
A2A data
SmartLead API smartlead.main-kill-isr.mintlify.me
q 84
A2A data
Benchmark Email API developers.benchmarkemail.io
q 84
A2A data
SmartLead API api.smartlead.ai
q 84
A2A data
Benzinga API Documentation docs.benzinga.com
q 84
A2A data