AI Agents Integration

Integrate Nexus with AI agents to enable autonomous API payments. This allows AI assistants to make paid API calls on behalf of users.

The Nexus MCP URL is


https://nexus-api.thirdweb.com/mcp

which gives every agent:

A wallet to pay for API calls
A semantic search engine to find APIs
A tool to pay for API calls following the x402 protocol

Integrate into popular AI clients

Install Nexus MCP in ChatGPT

Go to ChatGPT
Click Settings > Apps & Connectors (enable Developer mode in Advanced Settings first) > Create
Enter the MCP name: "Nexus"
Enter the MCP URL:
Click Save and follow the authentication steps

Using Nexus with Your Own Agent

If you're building your own AI agent, you can integrate Nexus MCP as a remote server:

Prerequisites

Create a agent wallet from the Nexus Dashboard
Get your wallet secret

Integration

Add the Nexus MCP URL as a remote MCP server transport and replace <YOUR_WALLET_SECRET> with your agent wallet secret:


import { StreamableHTTPClientTransport } from "@modelcontextprotocol/sdk/client/streamableHttp.js";

const mcpClient = await createMCPClient({
  transport: new StreamableHTTPClientTransport(
    new URL("https://nexus-api.thirdweb.com/mcp"),
    {
      requestInit: {
        headers: {
          Authorization: `Bearer <YOUR_WALLET_SECRET>`,
        },
      },
    },
  ),
});

const response = await generateText({
  model: openai("gpt-4o"),
  tools: await mcpClient.tools(),
  prompt: "What stocks should I buy and sell today?",
});