APIbase — The API Hub for AI Agents

What is APIbase?

APIbase is a production MCP server that gives AI agents access to 1,108 real-world API tools from 307 providers through a single endpoint. It is built for AI agents, with auto-registration, zero setup, and pay-per-call via x402 USDC micropayments on Base or MPP on Tempo.

How to use APIbase?

Add the endpoint https://apibase.pro/mcp to your MCP client configuration (Claude Desktop, Cursor, Windsurf). Alternatively, use the npm stdio bridge or the REST API to register an agent and call tools directly.

Key features of APIbase

• Single MCP endpoint for 1,108 tools
• Covers 30+ categories (weather, finance, travel, etc.)
• Pay-per-call with x402 (USDC on Base) or MPP
• Zero API-key management across 307 providers
• Auto-registration and usage analytics dashboard
• REST API and npm client available

Use cases of APIbase

• AI assistant booking flights, checking stock quotes, and fetching weather data
• Data analysis agent querying economic indicators (World Bank, FRED, Bureau of Labor Statistics)
• Content generation agent creating images with Stable Diffusion and sending emails
• Research agent searching academic papers (PubMed, arXiv, DBLP) and clinical trials
• Business intelligence agent analyzing company filings, FDA device recalls, and EV charger locations

FAQ from APIbase

What payment methods does APIbase support?

APIbase supports pay-per-call via x402 (USDC on Base) and MPP (Machine Payments Protocol on Tempo).

Do I need individual API keys for each provider?

No. APIbase aggregates 307 providers, so you do not need to sign up for each one individually.

What transport does APIbase use?

APIbase uses the Model Context Protocol (MCP) over a URL endpoint (https://apibase.pro/mcp). A REST API is also available for direct tool calls.

Is there a REST API?

Yes. You can register an agent via POST /api/v1/agents/register and call any tool via POST /api/v1/tools/{tool}/call using an API key.

What are the runtime requirements?

No server-side dependencies are required. Simply configure your MCP client with the endpoint URL, or run the npm package apibase-mcp-client as a stdio bridge.