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.
category
All
data 29
inference 9
infra 7
search 6
social 5
media 5
travel 2
storage 2
trading 1
other 1
Showing 1–4 of 4
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.
CoinGecko
100%
pro-api.coingecko.com
Crypto prices, market caps, trading volume
paid API
data
x402
$7.54 · 30d
754 tx
Dripstack
dripstack.xyz
Pay per Substack article - agents access individual paywalled posts without a subscription.
paid API
data
$17.10 · 30d
308 tx
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