APIHub

Discover and call hundreds of paid APIs from any MCP client using prepaid USDC credits — no wallet, no gas, no per-provider SDKs.

GitHub

APIHub MCP Server

MCP server for APIHub — discover and call paid APIs with USDC credits. No wallet, no gas, no per-provider SDKs.

  • Hosted endpoint: https://mcp.apihub.io/mcp
  • Transport: Streamable HTTP
  • Protocol version: 2025-03-26
  • Auth: Bearer token (get a free key at apihub.io)

Tools

ToolDescription
apihub_searchSearch for APIs by capability, category, or price range
apihub_list_servicesList available onboarded API services
apihub_get_serviceFetch full details for a specific service
apihub_callMake a paid API call through the proxy (debits credits)
apihub_search_externalSearch the external x402 catalog
apihub_call_externalCall any external x402 API via credits
apihub_read_contentFetch and parse a web page through a paid content gateway
apihub_topupGet payment instructions to top up your credit balance
apihub_balanceCheck your credit balance and spending history

Quick start

Claude Desktop / Cursor / Codex

Add to your MCP config:

{
  "mcpServers": {
    "apihub": {
      "url": "https://mcp.apihub.io/mcp",
      "headers": {
        "Authorization": "Bearer ahk_your_api_key"
      }
    }
  }
}

APIHub CLI

npx @apihubio/cli install    # writes the MCP config for you
npx @apihubio/cli register   # get an API key
npx @apihubio/cli topup 10   # fund with $10 USDC

Why credits instead of per-call x402

  • Gasless: pay on-chain once when topping up, not per request
  • Walletless: no USDC, no EIP-3009 signing, no gas
  • Works in any MCP client: just a Bearer token header
  • Instant: D1 debit at the edge, no block confirmations per call

Learn more

License

The hosted service is operated by APIHub. This repository contains integration documentation only.

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