@klymax402/eliza-plugin

15 production x402 APIs on Base for ElizaOS agents. Agents pay USDC per call — no API keys, no accounts, no subscriptions.

Built on klymax402.com · x.com/Br0ski_FX

Install

npm install @klymax402/eliza-plugin

Usage

import { createKlymax402Plugin } from "@klymax402/eliza-plugin";

const klymax = createKlymax402Plugin({
  privateKey: process.env.AGENT_PRIVATE_KEY!, // EVM hex private key (Base wallet)
});

// Add to your ElizaOS agent
const agent = new AgentRuntime({
  plugins: [klymax],
  // ...rest of your config
});

The plugin registers 15 Eliza Actions. The agent pays USDC automatically when it triggers one.

Actions

| Action | Method | Cost | Description | |--------|--------|------|-------------| | KLYMAX_STOCK_PRICE | POST | $0.002 | Real-time stock quote for any ticker | | KLYMAX_COMPANY_ENRICHMENT | GET | $0.01 | Enrich a company from its domain | | KLYMAX_TECH_ENRICHMENT | GET | $0.01 | Detect full tech stack of a website | | KLYMAX_PERSON_ENRICHMENT | GET | $0.01 | Enrich a person from their email | | KLYMAX_DOMAIN_INTELLIGENCE | GET | $0.005 | WHOIS, DNS, hosting, SSL for any domain | | KLYMAX_WEB_SEARCH | POST | $0.005 | Structured web search results | | KLYMAX_SEO_ANALYZER | GET | $0.01 | Full SEO audit with score and issues | | KLYMAX_EMAIL_VERIFICATION | POST | $0.001 | Check if an email is valid and deliverable | | KLYMAX_SENTIMENT_ANALYZER | POST | $0.001 | Sentiment analysis with confidence score | | KLYMAX_LANGUAGE_DETECTOR | POST | $0.001 | Detect language from text (30+ languages) | | KLYMAX_SSL_CHECKER | POST | $0.002 | SSL certificate validity and expiry | | KLYMAX_DNS_LOOKUP | POST | $0.001 | DNS records (A, MX, TXT, NS, CNAME) | | KLYMAX_FUNDING_RATES | GET | $0.002 | Crypto perpetual funding rates | | KLYMAX_KEYWORD_RESEARCH | GET | $0.01 | SEO keyword research with volume and CPC | | KLYMAX_TRUST_SCORE | POST | $0.005 | Domain trust/reputation and blacklist check |

How it works

1. ElizaOS agent detects a trigger phrase (e.g. "stock price AAPL")
2. Plugin builds the API request and calls https://<slug>.api.klymax402.com/<path>
3. API returns HTTP 402 with x402 payment requirements (USDC on Base)
4. Plugin signs an EIP-3009 authorization with the agent's private key
5. Retries the request with the payment-signature header
6. API returns the result — agent continues the conversation

No gas needed for the agent wallet — only USDC on Base.

Selective actions

const klymax = createKlymax402Plugin({
  privateKey: process.env.AGENT_PRIVATE_KEY!,
  enabledActions: ["KLYMAX_STOCK_PRICE", "KLYMAX_WEB_SEARCH", "KLYMAX_COMPANY_ENRICHMENT"],
});

Pricing

All prices are in USDC on Base mainnet (eip155:8453). The agent wallet needs a USDC balance before calling any action.

Full catalog of 100 APIs: klymax402.com