Unit Converter X402

What is Unit Converter X402?

Unit Converter X402 is an MCP server that converts between measurement units (length, weight, temperature, volume, speed, data storage) using a pay-per-call model. It integrates the x402 micropayment protocol (USDC on Base L2) to eliminate API keys, signups, and rate limits. It is part of the klymax402 marketplace, providing 100 such APIs for AI agents.

How to use Unit Converter X402?

Add the server URL https://unit-converter.api.klymax402.com/mcp to your MCP client configuration (e.g., Claude Desktop, Cursor, ElizaOS). For HTTP usage, send a POST request with JSON body {"value","from","to"} to /api/convert; an x402‑aware client automatically handles the 402 payment challenge.

Key features of Unit Converter X402

• Pay-per-call via x402 (USDC on Base L2)
• No API key, no signup, no rate limits
• Supports six unit categories: length, weight, temperature, volume, speed, data
• Returns conversion result with the formula used
• Part of the 100‑API klymax402 marketplace
• One wallet, USDC on Base, zero signup

Use cases of Unit Converter X402

• Unit conversions in data analysis and scientific computing
• Recipe scaling (e.g., liters to gallons, Celsius to Fahrenheit)
• Engineering calculations requiring precise unit conversions
• AI agents needing on‑demand measurement conversion without managing credentials

FAQ from Unit Converter X402

How does payment work for Unit Converter X402?

Each call costs $0.001, paid via the x402 protocol (HTTP‑native pay‑per‑call). Funds are USDC on Base L2 (eip155:8453). No signup or API key is required; the 402 → sign → retry cycle is automatic for x402‑aware clients.

What units can I convert with Unit Converter X402?

The tool covers length (km, mi), weight (lb, kg), temperature (celsius, fahrenheit), volume (l, gal), speed (mph, km/h), and data storage (MB, GB). You may optionally provide a category hint.

Does Unit Converter X402 support currency conversion?

No. It is strictly for measurement units. For currency conversion, use the separate finance_convert_currency tool. It also does not handle timezone conversion or stock prices.

Do I need an API key or sign up to use Unit Converter X402?

No. There is no API key, no signup, and no rate‑limit wall. Payment is handled per‑call through the x402 protocol.

How do I connect Unit Converter X402 to an MCP client?

Add the following to your client’s mcpServers configuration: {"unit-converter": {"url": "https://unit-converter.api.klymax402.com/mcp"}}. Then the tool utility_convert_units becomes available.