Pay-per-call APIs for AI agents: web scraping, DNS/email checks, classification, trading risk.
Copy the AI prompt to install this server into Claude Code, Cursor, or another agent β or use 1-click editor setup below.
One-click editor setup isnβt available for this listing yet β we donβt have a confirmed install command, and weβd rather show nothing than point your editor at the wrong package or host. Follow the projectβs own setup instructions, linked above.
Pay-per-call utility APIs for AI agents, priced and paid for over HTTP 402 via the x402 protocol (USDC on Base). No accounts, no API keys β an agent hits an endpoint, gets a 402 with the price, signs a payment, and retries.
| Tool | Price | What it does |
|---|---|---|
url_to_markdown | $0.002 | Fetch a URL, return clean markdown |
validate_domain | $0.001 | DNS check: resolves, A/MX/NS records |
validate_email | $0.001 | Syntax + MX lookup |
classify_text | $0.005 | Classify text into your own labels (LLM) |
perp_risk_check | $0.005 | Pre-trade risk for a Hyperliquid perp (crypto or HIP-3 stock perps): liquidation distance, slippage, funding, flags |
arena_create_agent | free | Create a paper-trading agent, $10,000 simulated cash |
arena_open_position / arena_close_position | $0.001 | Trade the paper account on real Hyperliquid prices |
arena_agent_profile / arena_leaderboard | free | Public paper-trading results |
tools/list is always free. Paid tools/call requires an x402 payment in
_meta["x402/payment"] β see @x402/mcp
for a client that handles this automatically.
Not investment advice. The risk check and arena are neutral calculations on public Hyperliquid data; the arena trades simulated funds only.
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