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.
Why this order?
mesh.heurist.xyz
Twitter intel + trending tokens + funding rates + wallet analysis
www.capminal.ai
Financial market data
intel.chainquery.com
Independent Bitcoin on-chain intelligence: fee-pressure signals, CDD spike detection, address analytics, rich lists, coin velocity, and HODL waves
minifetch.com
Structured metadata + token-efficient web content
api.arkm.com
Onchain intelligence — entity/address labels, token balances, transfers, live token market data, universal search, and Polymarket data.
dripstack.xyz
Pay per Substack article - agents access individual paywalled posts without a subscription.
agi.apify.com
Apify is the largest and most trusted marketplace of tools for web scraping, crawling, data extraction, and automation. Use these tools, called Actors, to extract structured data from social media, e-commerce sites, search engines, maps, tr…
x402.ottoai.services
Otto AI — agentic DeFi services. 26 x402 endpoints spanning trade execution (swaps, bridges, perps), market intelligence (news, KOL sentiment, token alpha, derivatives data), DeFi yield discovery, and AI tools (image/video gen, research, tr…
agents.allium.so
Onchain prices, balances, transactions, PnL, SQL explorer
api.messari.io
Crypto intelligence and research data
x402.quicknode.com
RPC and blockchain API across 80+ chains
products.wolframalpha.com
Computational intelligence engine — answer factual queries, perform math, science, and data computations via the Wolfram|Alpha API.
parallel.ai
AI-powered financial analysis and research platform
coinmarketcap.com
Crypto prices, rankings, and market data
thegraph.com
Indexing protocol for querying blockchain data with subgraphs
tripadvisor-content-api.readme.io
Travel content API — access detailed location data, traveler photos, and reviews for hotels, restaurants, and attractions worldwide.
binance-crypto-24h-stats.hergertsynthora.com
binance_crypto_24h_stats intelligence for autonomous agents. Signed x402 call. 0.03 USDC on Base.
market-dominance.hergertsynthora.com
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…
defidata.hergertsynthora.com
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 3 calls FREE …
dnsdomain.hergertsynthora.com
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…
perps.hergertsynthora.com
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…
cryptonews.hergertsynthora.com
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…
derivbundle.hergertsynthora.com
002 call (cheaper + fewer round-trips than buying each separately) 5 live datasets, partial degradation (never fails whole), Ed25519-signed First 3 calls FREE per wallet via X-WALLET header SYNTHORA.
regwatch.hergertsynthora.com
SYNTHORA regwatch: x402 Registry Watch: signed Ed25519 deltas of the x402/A2A endpoint registry (payTo/listings/endpoints). Pay-per-event feed pull. POST {"since":"<cursor|ISO>","slug":"<slug>","limit":<=200}.
wikipedia.hergertsynthora.com
Returns a Wikipedia article summary for a given title: title, extract, page ID and canonical URL, sourced from the Wikipedia REST API. No API key required. 0.001 USDC per call on Base, with 3 free calls per wallet via the X-WALLET header.
stablecoin-peg.hergertsynthora.com
Returns current price and deviation from $1.00 for stablecoins such as USDT, USDC and DAI, with a peg status flag. Data sourced from CoinGecko. First 3 calls are free per wallet via the X-WALLET header.
holidays.hergertsynthora.com
Returns the public holidays for a given country code and year, sourced from the public Nager.Date API. The first 3 calls per wallet are free using the X-WALLET header, and failed upstream lookups are not charged.
crypto-trending.hergertsynthora.com
Returns the current list of trending coins sourced from the public CoinGecko search trending endpoint, with name, symbol, market cap rank and trend score. Paid per call in USDC on Base, with a declared free trial of 3 calls per wallet via t…
orderbook-liquidity.hergertsynthora.com
Returns live order book depth for a crypto pair, proxying the public Binance depth endpoint. POST a symbol and a limit to get raw bid and ask levels; the response names its upstream source. A free tier of 3 calls per wallet is available via…
vin-decode.hergertsynthora.com
Decodes a Vehicle Identification Number into make, model, year, trim, body class, fuel type and manufacturer, sourced from the public NHTSA vPIC database. The first 3 calls per wallet are free via the X-WALLET header, and each response carr…
stablecoin-mcap.hergertsynthora.com
Returns real-time circulating supply and per-chain breakdown for major stablecoins, sourced from DefiLlama.
parallel.life
AI-powered financial analysis and research platform