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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 335 AI 127 Finance 85 Verification 60 Blockchain 57 Other 22 Content 18 Search 14 Web 12 Compute 12 Infrastructure 10 Inference 9
sort Quality Revenue (30d) Recently updated Name
Showing 1405–1440 of 3,505
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 + domain-verified agents. Machine-readable schema: conformance.json. No paid placement, no editorial weights.
x402-company-api-production.up.railway.app x402-company-api-production.up.railway.app
65%

Search UK companies by name via Companies House — returns matches with number, status, type, incorporation date, address.

paid API x402
$0.34 · 30d 101 tx
thepaliworkernode.com thepaliworkernode.com
65%
paid API x402
from $0.02
forex-latest.hergertsynthora.com forex-latest.hergertsynthora.com
65%

Returns European Central Bank daily reference exchange rates for 30+ currencies, for any base and quote pair, proxied from the public Frankfurter API. Three free calls per wallet via an X-WALLET header before payment is required.

paid API offline finance x402
$0.44 · 30d 98 tx
agent-economy-signal-x402-mainnet.bronzetti-andrea.workers.dev agent-economy-signal-x402-mainnet.bronzetti-andrea.workers.dev
65%
paid API x402
$0.10 · 30d 2 tx
polymarket-markets.hergertsynthora.com polymarket-markets.hergertsynthora.com
65%

Returns active Polymarket prediction markets with prices, volume and liquidity, sourced from the public Polymarket Gamma API. Plain JSON, no API key required. The first 3 calls per wallet are free via the X-WALLET header.

paid API offline data x402
$0.44 · 30d 98 tx
locus.report locus.report
65%

Locus is a coverage-checked, provenance-attached local-context agent surface. Start with the three recommended paid workflows in the top-agent manifest, or use the unified catalog when an agent already knows the exact free or $0.01 atomic l…

paid API offline a2a_x402
$1.06 · 30d 21 tx
ohlcv-candles.hergertsynthora.com ohlcv-candles.hergertsynthora.com
65%

Returns OHLCV candles (open, high, low, close, volume) for a given crypto pair and interval, proxied from Binance public klines. The first 3 calls per wallet are free via the X-WALLET header.

paid API offline data x402
$0.44 · 30d 98 tx
open-pay.jp open-pay.jp
65%
paid API x402
from $0.00
x402-trends-server.onrender.com x402-trends-server.onrender.com
65%
paid API x402
$0.34 · 30d 9 tx
stock-intel.hergertsynthora.com stock-intel.hergertsynthora.com
65%
paid API x402
$0.44 · 30d 98 tx
fear-greed.hergertsynthora.com fear-greed.hergertsynthora.com
65%

Returns the current crypto Fear and Greed index (0-100) with its classification label, relayed from the public alternative.me feed. POST /service with a JSON limit field. First 3 calls per wallet are free via an X-WALLET header.

paid API offline data x402
$0.44 · 30d 98 tx
x402-secfilings-poc.theliminalguy.workers.dev x402-secfilings-poc.theliminalguy.workers.dev
65%
paid API x402
$0.45 · 30d 37 tx
api.gmfarcaster.com api.gmfarcaster.com
65%

Ask a natural-language question and get a cited answer from the GM Farcaster library — hundreds of episodes of Farcaster news, interviews, and analysis. Returns a grounded answer plus the source episodes with timestamped links.

paid API x402
$5.03 · 30d 7 tx
api.hyperd.ai api.hyperd.ai
65%

Current gas price + base fee + tip percentiles for fast/standard/slow inclusion.

paid API x402
$5.11 · 30d 15 tx
lgtm.lol lgtm.lol
65%
paid API x402
$0.00 · 30d 1 tx
basefeed-io.fly.dev basefeed-io.fly.dev
65%

x402 settlement test

paid API x402
$0.01 · 30d 3 tx
mapbox.x402.paywithlocus.com mapbox.x402.paywithlocus.com
65%
paid API x402
$8.47 · 30d 1,412 tx
agent-proxy.alchemy.com agent-proxy.alchemy.com
65%

sfdsa

paid API x402
$0.02 · 30d 1 tx
gblin-sentinel.vercel.app gblin-sentinel.vercel.app
65%

Actionable GBLIN treasury recommendation (invest/hold/reduce/defer) with confidence score and suggested allocation percentage, driven by live on-chain Crash Shield state on Base. Combines Chainlink price risk, treasury analytics and drawdow…

paid API x402
$0.13 · 30d 34 tx
api.mydev-tools.tech api.mydev-tools.tech
65%
paid API x402
$0.95 · 30d 11 tx
squealing-puzzle-singular.ngrok-free.dev squealing-puzzle-singular.ngrok-free.dev
65%
paid API x402
$1.42 · 30d 7 tx
x402.monpham.work x402.monpham.work
65%
paid API x402
$0.26 · 30d 18 tx
vendsdk.com vendsdk.com
65%
paid API x402
from $0.00
japan-evidence-feed.jp-evidence.workers.dev japan-evidence-feed.jp-evidence.workers.dev
65%
paid API x402
$0.66 · 30d 5 tx
x402-fuelprice-poc.theliminalguy.workers.dev x402-fuelprice-poc.theliminalguy.workers.dev
65%
paid API x402
$0.45 · 30d 37 tx
x402-recall-lookup-poc.theliminalguy.workers.dev x402-recall-lookup-poc.theliminalguy.workers.dev
65%
paid API x402
$0.45 · 30d 37 tx
srv1553682.hstgr.cloud srv1553682.hstgr.cloud
65%
paid API x402
$0.03 · 30d 7 tx
pulse.chainverdict.xyz pulse.chainverdict.xyz
65%
paid API x402
$4.01 · 30d 116 tx
agents.x402stock.xyz agents.x402stock.xyz
65%

The total US public debt outstanding to the penny — the headline national-debt figure — split into debt held by the public and intragovernmental holdings, with the latest value, prior business day, day-over-day change, and recent history. N…

paid API x402
from $0.01
x402-codesearch-poc.theliminalguy.workers.dev x402-codesearch-poc.theliminalguy.workers.dev
65%
paid API x402
$0.45 · 30d 37 tx
play.0000402.xyz play.0000402.xyz
65%

Pay $1.00 USDC to play Rock Paper Scissors against the server. Win pays 2.0 USDC, tie pays 0.5 USDC, loss pays nothing. Network: Base Mainnet. Each request plays one complete turn-based round against a server-selected move and returns both …

paid API x402
$502.62 · 30d 78 tx
replenum.com replenum.com
65%
paid API x402
$0.41 · 30d 12 tx
trusted-x402.compose.land trusted-x402.compose.land
65%
paid API x402
$0.02 · 30d 2 tx
api.exende.dev api.exende.dev
65%
paid API x402
$0.01 · 30d 1 tx
deal-verdict-api-production.up.railway.app deal-verdict-api-production.up.railway.app
65%

Resolve a plain-language product to canonical models, check every reachable retailer, and return a single deal verdict (deal / no deal / insufficient data) with a discount, confidence, and coverage report. Sells the answer, not the underlyi…

paid API x402
from $0.05
almanac.locomot.io almanac.locomot.io
65%

Deterministic citation formatter — APA 7, MLA 9, Chicago 17 author-date, BibTeX. From structured fields, returns the reference entry (markdown/html/plain) + the in-text citation, reproducing published style-manual examples exactly. For full…

paid API live x402
$3.71 · 30d 14 tx