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

Tool	Description
`apihub_search`	Search for APIs by capability, category, or price range
`apihub_list_services`	List available onboarded API services
`apihub_get_service`	Fetch full details for a specific service
`apihub_call`	Make a paid API call through the proxy (debits credits)
`apihub_search_external`	Search the external x402 catalog
`apihub_call_external`	Call any external x402 API via credits
`apihub_read_content`	Fetch and parse a web page through a paid content gateway
`apihub_topup`	Get payment instructions to top up your credit balance
`apihub_balance`	Check 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

MCP documentation: https://apihub.io/docs/agents/mcp
CLI documentation: https://apihub.io/docs/agents/cli
Full docs: https://apihub.io/docs
Provider onboarding: https://apihub.io/docs/providers/onboarding
Base x402 protocol: https://x402.org

License

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

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