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 1 category buckets.
Why this order?
bitcoin-fees.hergertsynthora.com
SYNTHORA bitcoin-fees: Bitcoin fee tiers in sat/vB (fastest/half-hour/hour/economy/minimum) plus current block height. Source: mempool.space public API, keyless. Bitcoin only.
defi-llama-tvl-ranking.hergertsynthora.com
SYNTHORA defi-llama-tvl-ranking: Top DeFi protocols by TVL with rank, chain, category and 1d/7d change, capped list (default 50, max 200 via {"limit":N}). Source: api.llama.fi/protocols (DefiLlama), keyless, timestamped.
historical-weather.hergertsynthora.com
SYNTHORA historical-weather: verified historical weather for any place and date (1940 → ~5 days ago) from the ERA5 reanalysis — tmax/tmin, precipitation, max wind. For climate-market backtesting and claim verification. Source: open-meteo ar…
fed-watch.hergertsynthora.com
SYNTHORA fed-watch: US reference-rate funding pulse — SOFR/EFFR/TGCR/BGCR/OBFR with volumes, percentile dispersion and the SOFR-EFFR spread (the funding-stress signal before it hits the news). Cross-check of 5 independent official NY Fed se…
stablecoin-supply.hergertsynthora.com
SYNTHORA stablecoin-supply: circulating USD supply, price and peg deviation in basis points for the top stablecoins (USDT, USDC, DAI...), with a depeg alert flag above 50 bps. Optional symbol filter. Free source: stablecoins.llama.fi (DefiL…
defi-yields.hergertsynthora.com
SYNTHORA defi-yields: stablecoin DeFi yields ranked with a risk outlier detector — APY vs class median (>=3x median = the excess yield IS the risk price). Only pools with TVL >= $10M. Source: DefiLlama, free, no key. $0.01 USDC x402 Base.
gdelt-tension.hergertsynthora.com
SYNTHORA gdelt-tension: geopolitical tension index for any topic/country — news-mention spike vs 7d baseline, average tone shift, escalation flag and the headlines causing it. The early signal for Polymarket geopolitical markets (high varia…
usgs-earthquakes.hergertsynthora.com
SYNTHORA usgs-earthquakes: latest earthquakes (M>=4.5 default, tunable) with PAGER alert level, tsunami flag and ACTIVE SEISMIC CLUSTER detection (>=3 events same zone in 24h) — the actionable signal for insurance-risk and disaster predicti…
gas-oracle-multi.hergertsynthora.com
SYNTHORA gas-oracle-multi: gas price across 5 chains (ethereum, base, arbitrum, optimism, polygon), each VERIFIED by two independent public RPCs with divergence report — a single RPC can lie or lag; dual-verified is what you time transactio…
top-crypto.hergertsynthora.com
SYNTHORA top-crypto: Top N cryptocurrencies by market cap (default 10, max 50): rank, price, 24h change, volume and market cap in USD. Source: CoinGecko free API, keyless, timestamped.
polymarket-trades.hergertsynthora.com
Historical Polymarket trade query with filters plus per-wallet aggregation. $0.03 USDC x402 Base.
port-watch.hergertsynthora.com
SYNTHORA port-watch: daily port activity for any of 2,065 ports (Shanghai, Singapore, Rotterdam, LA, Long Beach presets + any name) — port calls, estimated import/export capacity (dwt), 7d moving average vs 30d baseline deviation and anomal…
ecb-macro.hergertsynthora.com
SYNTHORA ecb-macro: official eurozone macro from the ECB data warehouse — HICP inflation, MRR policy rate, 10Y govt yield, each with previous value, change and direction. For macro/rates agents and prediction markets. Official free source, …
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.
console.mermail.app
Secure email and mailbox assistant for AI-to-machine workflows in the Mermail platform.
nexus-agent-xa12.onrender.com
Live prediction market data oracle. Kalshi + Polymarket odds, cross-venue arb spreads, Fed/BTC/CPI/GDP. Pay-per-query via x402 USDC on Base.
prereason.com
Financial market context for AI agents: macro, rates, bonds, FX, commodities, companies and Bitcoin. 32 briefings covering Treasury yields, the latest FOMC statement, Treasury auctions, who holds US Treasuries, the Fed balance sheet, M2, ne…
www.prereason.com
Financial market context for AI agents: macro, rates, bonds, FX, commodities, companies and Bitcoin. 32 briefings covering Treasury yields, the latest FOMC statement, Treasury auctions, who holds US Treasuries, the Fed balance sheet, M2, ne…
registry-watch.hergertsynthora.com
Monitor registry changes in real-time with x402 M2M API. Signed x402 call. 0.03 USDC on Base.
mem.borisinc.com
Persistent, semantically-indexed memory for AI agents. Your wallet is your private namespace. Try the full loop free on the trial tier, then pay per call in USDC via x402 (eip155:8453) — no account, no API key.
suedeai.ai
Suede Labs agent for paid music, video, and image generation.
stacktr.ee
Agent-first private-by-default HTML hosting. Publish sites from any AI agent over MCP, REST, or a CLI.
agentexchange.work
Toll booth for the AI agent economy: agents post tasks, bid, get matched, execute, and prove value with public on-chain receipts. Non-custodial — payments settle agent-to-agent via x402. Reputation (BotScore) + agent passports.
cheetahsecurity.de
Neutral trust and security layer for the agentic internet. Autonomous, pay-per-call x402 services on Base (USDC, HTTP 402): prompt-injection firewall, URL/domain reputation, on-chain agent trust scoring, and AML/KYA counterparty screening. …
seo.hypa1m.xyz
Website SEO auditing across 200 rules and 20 categories, paid per call in USDC on Base via x402.
reddit.hypa1m.xyz
Reddit reads and authenticated writes for AI agents, paid per call in USDC on Base via x402.
merx.exchange
Specialist agent for TRON blockchain operations: energy market, resource management, standing orders, and treasury automation.
api.mgo.chain-ops.xyz
x402-native API that compares real-time gas prices across up to 9 EVM chains. Built for trading agents, DeFi bots, and AI agents optimizing transaction costs.
dailydrop-five.vercel.app
Proof of Presence agent on Celo and Base. Verify real humans by on-chain daily streak. Free public API for sybil resistance — batch verification available via x402.
x711.io
x711 AI Agent Gas Station — 47 tools for AI agents: live web search, crypto price feed, on-chain wallet forensics, code sandbox, email send, hive collective memory, SUBSTRATE intelligence layer, agent genesis. USDC micropayments on Base. 10…
memory.virohanalife.com
MCP connector for Virohana Agora's paid x402 micro-service catalog. Discovery tools are free; paid tools return an x402 quote and execute once the payment settles. Bi-temporal memory-as-a-service included.
borisinc.com
Infrastructure for the machine economy: trust, discovery, payments, memory, cognition and live data services that AI agents can discover, verify and pay per call via x402 — no account, no API key, independent hardware. Products: Aegis (trus…