feat: add x402_fetch tool

[Intellihackz]

Overview

This PR adds native x402 payment capabilities to the Injective MCP server, allowing AI agents to fetch gated API
endpoints and seamlessly pay the 402 Payment Required invoice using their local keystore.

Changes Made

• Dependency Added: Installed @injectivelabs/x402 to utilize the createInjectiveClient HTTP wrapper.
• New MCP Tool: Added the x402_fetch tool to src/mcp/server.ts.

How it Works

When an agent calls x402_fetch(address, password, url):
1. The server decrypts the local EVM private key.
2. It initiates a fetch request to the gated endpoint.
3. If the server responds with a 402 and a price quote, the client automatically signs an EIP-3009 USDC
authorization.
4. The signed payment is submitted to the x402 facilitator to settle on Injective EVM.
5. The original request is retried with the payment receipt, successfully returning the underlying data back to
the AI.

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• package-lock.json is excluded by !**/package-lock.json

📒 Files selected for processing (2)

• package.json
• src/mcp/server.ts

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[socket-security]

Review the following changes in direct dependencies. Learn more about Socket for GitHub.

Diff	Package	Supply Chain Security	Vulnerability	Quality	Maintenance	License
	@​injectivelabs/​x402@​0.0.1

View full report