klymax402

Quick Start — 3 Lines to Your First Call

import { createClient } from "x402-agent-tools"; const client = createClient("0xYourPrivateKey"); // Crypto: whale positions on Hyperliquid const whales = await client.call("hyperliquid_whales", { coin: "BTC" }); // B2B: enrich a company from domain const company = await client.call("company_enrichment", { domain: "stripe.com" }); // Security: trust score any domain const trust = await client.call("trust_score", { target: "example.com" }); // DeFi: best bridge route across 60+ chains const route = await client.call("bridge_routes", { fromChain: "1", toChain: "8453", token: "USDC", amount: "1000000" });

Use this when building AI agents with Vercel AI SDK. Returns all 103 tools as Vercel-compatible tool objects with automatic x402 payment handling.

import { createClient } from "x402-agent-tools"; import { getX402Tools } from "x402-agent-tools/ai-sdk"; import { generateText } from "ai"; import { anthropic } from "@ai-sdk/anthropic"; const client = createClient("0xYourPrivateKey"); const { text } = await generateText({ model: anthropic("claude-sonnet-4-20250514"), tools: getX402Tools(client), prompt: "What are the current funding rates on Hyperliquid for BTC and ETH? Also check if there are any liquidation levels near current prices on Aave.", });

// Only Hyperliquid + DeFi tools (ideal for trading agents) const tradingTools = getX402Tools(client, { categories: ](https://github.com/Br0ski777/x402-agent-tools)["hyperliquid", "defi", "crypto"] }); // Only specific tools you need const researchTools = getX402Tools(client, { tools: ["web_scraper", "web_search", "fact_checker", "research_report"] });

Use this when building agents with LangChain.js. Returns DynamicStructuredTool instances compatible with all LangChain agent types.

import { createClient } from "x402-agent-tools"; import { getX402LangChainTools } from "x402-agent-tools/langchain"; import { ChatAnthropic } from "@langchain/anthropic"; import { AgentExecutor, createToolCallingAgent } from "langchain/agents"; const client = createClient("0xYourPrivateKey"); const tools = getX402LangChainTools(client); const llm = new ChatAnthropic({ model: "claude-sonnet-4-20250514" }); const agent = createToolCallingAgent({ llm, tools, prompt: yourPrompt }); const executor = new AgentExecutor({ agent, tools }); await executor.invoke({ input: "Find the top whale positions on Hyperliquid BTC, check token safety for the top traded token, then summarize the findings." });

Every tool is also available as a standalone x402 HTTP endpoint. Use@x402/fetchdirectly:

import { wrapFetchWithPaymentFromConfig } from "@x402/fetch"; import { ExactEvmScheme } from "@x402/evm"; import { privateKeyToAccount } from "viem/accounts"; const account = privateKeyToAccount("0xYourPrivateKey"); const paidFetch = wrapFetchWithPaymentFromConfig(fetch, { schemes: [{ network: "eip155:8453", client: new ExactEvmScheme(account) }], }); // trust_score is POST /api/score. GET tools (e.g. dex_quotes -> /api/quote) take query params. const response = await paidFetch("https://trust-score.api.klymax402.com/api/score", { method: "POST", headers: { "Content-Type": "application/json" }, body: JSON.stringify({ target: "example.com" }), }); const result = await response.json();

#1 Hyperliquid data provider on x402. Complete DEX coverage.

Your Agent x402-agent-tools API Server | | | |-- call("trust_score", {}) ->| | | |-- POST /api/score ------------>| | |<-- 402 Payment Required -------| | | | | | [auto-signs USDC payment] | | | | | |-- POST /api/score + payment -->| | |<-- 200 OK + JSON data ---------| |<-- structured result --------| |

- Your agent calls a tool through the SDK
- The SDK sends an HTTP request to our API
- Server responds402 Payment Requiredwith price in USDC
- @x402/fetchautomatically signs a USDC micro-payment on Base L2
- Request retries with the signed payment header
- You get structured JSON data back

No API keys. No rate limits. No subscriptions. Pay per call.

const client = createClient("0xYourPrivateKey"); // List all categories console.log(client.listCategories()); // ["hyperliquid", "prediction", "crypto", "defi", "nft", "solana", // "security", "enrichment", "email", "web", "social", "network", // "nlp", "finance", "media", "text", "research", "compliance", // "validation", "developer", "generator", "document", "utility", "data"] // Get tools in a category const cryptoTools = client.getToolsByCategory("hyperliquid"); // List all 103 tools const all = client.listTools();

Trading Agent— Usehyperliquid_*+funding_rates+liquidation_oracle+prediction_marketsto build autonomous trading strategies. Monitor whale positions, funding arbitrage, and prediction market odds in real-time.

Research Agent— Useweb_search+web_scraper+fact_checker+research_report+ai_summarizerto build deep research pipelines. Scrape, verify, and synthesize information from multiple sources.

Security Agent— Usetrust_score+token_safety+ssl_checker+port_scanner+gdpr_scannerto audit websites, tokens, and infrastructure. Generate compliance reports automatically.

Sales Agent— Useemail_finder+company_enrichment+person_enrichment+email_verification+email_sendto build outbound sales pipelines. Find, enrich, verify, and contact leads at scale.

DeFi Agent— Usedefi_yields+base_defi+bridge_routes+dex_quotes+wallet_portfolioto optimize yield farming, find bridge routes, and manage multi-chain portfolios.

- Node.js >= 18
- A wallet with USDC on Base L2 (even $1 gets you 100-1000+ calls)
- Private key for signing payments (use a dedicated agent wallet,notyour main wallet)

klymax402 publishes a machine-readable catalog for AI systems and LLM crawlers:

- llms.txt:klymax402.com/llms.txt— full API catalog in llms.txt format (100 APIs, pricing, MCP install snippets, x402 payment reference)
- MCP endpoint:https://klymax402.com/mcp— self-hosted MCP gateway, all 100 APIs, Streamable HTTP
- Live stats:klymax402.com/stats— 99.9% uptime, P50 57ms, P95 104ms, 766 txs on-chain

- klymax402.com— marketplace homepage
- llms.txt— AI-readable catalog
- Live stats— real-time dashboard
- GitHub
- x402 Protocol
- x402scan Analytics

One x402/developer-credit control layer for paid AI/data tool calls, crypto conversion quotes, public MCP discovery, progress streaming, and receipt-backed agent spend governance.