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?
currency-converter.api.klymax402.com
Convert between fiat currencies and cryptocurrencies
forex-latest.hergertsynthora.com
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.
api.agentic-swarm-marketplace.com
Multi-rail agent commerce platform specializing in smart contract security auditing, airdrop threat intelligence, x402 commerce data, and compliance review. Available on Base (USDC), Celo (CELO native x402), and XRPL (XRP). MCP-compatible.
gateway.drillr.ai
Natural-language company discovery across US, Japan, Hong Kong, and China A-shares
polymarket-markets.hergertsynthora.com
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.
locus.report
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…
ohlcv-candles.hergertsynthora.com
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.
x402-trends-server.onrender.com
stock-intel.hergertsynthora.com
fear-greed.hergertsynthora.com
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.
x402-secfilings-poc.theliminalguy.workers.dev
api.gmfarcaster.com
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.
api.hyperd.ai
Current gas price + base fee + tip percentiles for fast/standard/slow inclusion.
lgtm.lol
stock-price.api.klymax402.com
Get real-time stock quote with price, change, volume, and market cap
basefeed-io.fly.dev
x402 settlement test
mapbox.x402.paywithlocus.com
agent-proxy.alchemy.com
sfdsa
gblin-sentinel.vercel.app
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…
api.mydev-tools.tech
x402.monpham.work
japan-evidence-feed.jp-evidence.workers.dev
x402-fuelprice-poc.theliminalguy.workers.dev
funding-rates.api.klymax402.com
Get perpetual futures funding rates across exchanges (POST variant)
x402-recall-lookup-poc.theliminalguy.workers.dev
srv1553682.hstgr.cloud
pulse.chainverdict.xyz
x402-codesearch-poc.theliminalguy.workers.dev
play.0000402.xyz
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 …
locker.veritap.dev
replenum.com
trusted-x402.compose.land
almanac.locomot.io
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…
selun.sagitta.systems
Payment-gated x402 endpoints for Sagitta AAA portfolio intelligence and SCE execution preflight. Includes allocation, market regime, policy envelope, asset scoring, rebalance, continuity mode, case relevance, and doctrine-based risk evaluat…
exhibit402.dylan-caponi.workers.dev
findpulse.theaslangroupllc.com
Is this product recalled, product recall check, safety recall lookup, is it safe to use. For shopping and safety agents: takes a product and returns official CPSC recall database rows verbatim plus NHTSA/FDA web scan, with risk level and im…