Kēryx®
Live on Arc testnet

The toll booth for the agent economy.

Kēryx is the registry where developers publish paid tools and AI agents pay to use them. Sub-cent USDC settles on Arc in under half a second. No subscriptions, no API keys, no human in the loop.

Works wherever agents runClaude CodeCursorOpenAILangChainAutoGPTAnthropic MCPWorks wherever agents runClaude CodeCursorOpenAILangChainAutoGPTAnthropic MCP
How it works

Two sides. One rail.

01

Publish a tool

Wrap any HTTP handler with @keryx/middleware. Set a price per call. Point it at an Arc wallet. Your tool is instantly discoverable.

02

Agents discover it

Every listing carries a machine-readable manifest. Claude Code, Cursor, and custom agents find your tool by capability and know its price before they call it.

03

USDC arrives

Every call triggers a nanopayment through Circle Gateway. Your wallet updates in real time. Kēryx never holds a balance.

Registry

Tools live right now

solanaVerified

Whale Wallet Tracker

Returns the top Solana wallets that transacted in a given token in the last 24h, ranked by USD volume.

Price
$0.005
Publisher
Kēryx
solanaVerified

New Token Launches

Returns Solana tokens launched in the last N minutes with 24h volume > threshold, sorted by momentum.

Price
$0.003
Publisher
Kēryx
solanaVerified

Rug Risk Score

Heuristic risk score (0-100) for a Solana token: mint authority, LP lock, holder concentration, dev wallet.

Price
$0.002
Publisher
Kēryx
searchVerified

Grounded Web Search

Web search that returns clean snippets + source URLs. Optimized for LLM grounding.

Price
$0.004
Publisher
Kēryx
scrapeVerified

X / Twitter Trend Scraper

Returns trending topics or a specific user's recent posts, without an X API subscription.

Price
$0.006
Publisher
Kēryx

Make something agents want.

The next trillion users on the internet are AI agents. Kēryx is where they pay for the tools they use.