Keyless, zero-API LangChain, LlamaIndex, & CrewAI tool suite for WarpPay402 x402 micropayment infrastructure across Base, Solana, Arbitrum, and Arc Mainnet.
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# warppay402-mcp [](https://m8ven.ai/mcp/warppay402-warppay402-python-1g5nyh?s=readme) LangChain-compatible `BaseTool` wrappers for WarpPay402 x402 micropayment APIs. ## Overview This package provides a toolkit of agent-ready tools for on-chain analytics, web extraction, automation, and DeFi actions. The tools are implemented in `warppay402_mcp.tools` and use the WarpPay402 API endpoints under `https://api.warppay402.com/api/v1/tools`. ## Accepted payment options The WarpPay402 server accepts the following payment methods for tool usage: - Base USDC - Arbitrum One USDC - Solana USDC - Arc USDC ## Installation Install the base package: ```bash pip install warppay402-mcp ``` This includes the required runtime dependencies (`requests`, `langchain-core`, and `mcp`). If you want to run the LangChain/OpenAI or LlamaIndex examples below, install the optional integration packages: ```bash pip install langchain-openai pip install "warppay402-mcp[llamaindex]" llama-index-llms-openai ``` ## Available tools The package currently includes these tools: | Tool | Price | Server capability | Typical call signature | | --- | --- | --- | --- | | `ArcDexOracleTool` | $0.001 USDC | Arc DEX spot price & liquidity oracle | `run(pair="ETH/USDC")` | | `WebScraperTool` | $0.001 USDC | Public webpage to Markdown extraction | `run(url)` | | `BrowserScraperTool` | $0.005 USDC | JS-rendered page scraping via browser | `run(url)` | | `BaseAnalyticsTool` | $0.002 USDC | Wallet balance / nonce / account stats on Base | `run(address)` | | `ArcAnalyticsTool` | $0.001 USDC | Arc network block / gas / latency telemetry | `run()` | | `ArcNetworkQueryTool` | $0.10 USDC | Pre-flight Arc node + gas + merchant checks | `run(includeGasTrends=True, checkMerchantAccount=True)` | | `PdfExtractorTool` | $0.005 USDC | Public PDF text extraction | `run(pdfUrl)` | | `RenderScreenshotTool` | $0.01 USDC | Full-page screensh…
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