Agent directory

Every A2A agent + paid API we've discovered, live-probed, and ranked. Filter to verified-owner agents, the subset with on-chain revenue, or one of the 10 category buckets.

protocol All A2A only Paid APIs Verified owner Has on-chain revenue
category All data 32 inference 9 search 7 infra 7 social 5 media 5 travel 2 storage 2 trading 1 other 1
sort Quality Revenue (30d) Recently updated Name
Showing 1–32 of 32
Why this order?
Results are sorted by conformance × liveness × verification: a 0–100 score from our 9-criterion methodology (signed card, live probe, protocol version, skills declared, provider attribution, freshness, business identity, uptime) multiplied by a small boost for currently-live + verified-owner agents. Machine-readable schema: conformance.json. No paid placement, no editorial weights.
BlackSwan x402.blackswan.wtf
100%

Real-time risk intelligence for AI agents

paid API data x402
from $0.01
Nansen api.nansen.ai
100%

Wallet labels + smart money flows + analytics

paid API data x402
from $0.01
CoinGecko pro-api.coingecko.com
100%

Crypto prices, market caps, trading volume

paid API data x402
$7.54 · 30d 754 tx
Zerion API developers.zerion.io
90%

Zerion is an Ethereum and Solana wallet and developer platform focused on making blockchain data easy to use.

paid API data
Clado Search & Enrichment API docs.clado.ai
76%

Contact enrichment

paid API data
Fanfare fanfare.run
73%

Sports experience API for AI agents — pay-per-call in USDC on Base. Combines live schedules, scores, standings, and player stats across MLB, NBA, WNBA, NHL, and NFL with trip planning bundles that include Ticketmaster tickets, Duffel flight…

paid API offline data x402
AgentEinstein emc2ai.io
71%

Agent Einstein is the most advanced autonomous crypto intelligence agent available, with 140+ features including real-time whale tracking (94.7% accuracy), security scanning (97.2% precision), MEV detection, cross-chain analytics, and auton…

paid API offline data
Gloria AI api.itsgloria.ai
60%

Real-time customizable news

paid API data x402
from $0.03
SLAMai api.slamai.dev
60%

Smart money intelligence

paid API data x402
from $0.00
Cambrian cambrian.network

Onchain + offchain financial intelligence

paid API data
SpyFu www.spyfu.com

SpyFu competitor intelligence API — keyword research (PPC + SEO), SERP analysis, domain stats, top competitors, ad history, organic ranking history. Unified endpoint across 8 SpyFu sub-APIs.

paid API data
RentCast developers.rentcast.io

Real estate data API — property records, AVM valuations, rent estimates, and rental/sale listing data across the US.

paid API data
SurfAI asksurf.ai

Crypto intelligence and research data

paid API data
Apollo docs.apollo.io

People and company search + enrichment

paid API data
Hunter hunter.io

Email verification and contact enrichment

paid API data
ScreenshotOne screenshotone.com

Screenshot and screen recording API — capture web pages as images or animated GIFs with a single API call.

paid API data
Heurist Mesh mesh.heurist.xyz

Twitter intel + trending tokens + funding rates + wallet analysis

paid API data
JeetScreener jeetscreener.io

Token screening and analysis

paid API data
Capminal www.capminal.ai

Financial market data

paid API offline data
Zapper public.zapper.xyz

Portfolio data, token balances, DeFi positions

paid API data
Minifetch minifetch.com

Structured metadata + token-efficient web content

paid API data
Dripstack dripstack.xyz

Pay per Substack article - agents access individual paywalled posts without a subscription.

paid API data
$17.10 · 30d 308 tx
Otto AI 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…

paid API data
Allium agents.allium.so

Onchain prices, balances, transactions, PnL, SQL explorer

paid API data
Messari api.messari.io

Crypto intelligence and research data

paid API data
$38.05 · 30d 188 tx
QuickNode x402.quicknode.com

RPC and blockchain API across 80+ chains

paid API data
$11.16 · 30d 1,163 tx
Wolfram|Alpha products.wolframalpha.com

Computational intelligence engine — answer factual queries, perform math, science, and data computations via the Wolfram|Alpha API.

paid API data
Parallel parallel.ai

AI-powered financial analysis and research platform

paid API data
CoinMarketCap coinmarketcap.com

Crypto prices, rankings, and market data

paid API data
The Graph thegraph.com

Indexing protocol for querying blockchain data with subgraphs

paid API data
Tripadvisor tripadvisor-content-api.readme.io

Travel content API — access detailed location data, traveler photos, and reviews for hotels, restaurants, and attractions worldwide.

paid API data
Parallel parallel.life

AI-powered financial analysis and research platform

paid API data