# apifare for Mastra

One prepaid, capped key for every API your agent needs, under hard caps and a kill switch.

1. Get a token: https://apifare.com/start?origin=page:integrations-mastra (shown once).
2. In your Mastra project, connect with MCPClient from @mastra/mcp and give its tools to an agent. The token is read from the APIPAY_TOKEN environment variable and sent as an Authorization header.

```
npm install @mastra/mcp@latest
```

```
import { MCPClient } from '@mastra/mcp';
import { Agent } from '@mastra/core/agent';

const mcpClient = new MCPClient({
  id: 'apifare',
  servers: {
    apifare: {
      url: new URL('https://apifare.com/mcp'),
      requestInit: {
        headers: { Authorization: `Bearer ${process.env.APIPAY_TOKEN}` },
      },
    },
  },
});

const agent = new Agent({
  id: 'assistant',
  name: 'Assistant',
  instructions: 'Use the available MCP tools to answer questions.',
  model: 'openai/gpt-5.6-sol',
  tools: await mcpClient.listTools(),
});

const response = await agent.generate("What's the weather in London?");
console.log(response.text);
await mcpClient.disconnect();
```

   Set APIPAY_TOKEN, then run it. Mastra prefixes tool names with the server name, so the tools appear as apifare_….
3. Try it: "search the web for X", then "fetch a URL", then "what's the weather in London".
4. Caps and the kill switch are checked before dispatch. An empty balance returns HTTP 402 with a top-up link (see /errors.md).

Prices: https://apifare.com/capabilities. Config checked against https://mastra.ai/docs/connections/mcp on 2026-09-13.