For AI agents

x402 MCP server

One MCP connection that lets any AI agent pay for any x402-protected resource — across Stellar, Base, and Solana — without ever holding a private key.

What it is

Verivyx MCP is a remote Model Context Protocol server. Connect it to Claude, Cursor, or your own agent and it gains a single tool to fetch any URL — and when that URL replies with HTTP 402 Payment Required, the MCP completes the x402 payment automatically and returns the content. It is the buyer-side counterpart to the Verivyx paywall: one side sells, the other pays.

How it works

• Connect once — add the server URL + your key to any MCP client.
• Your agent asks — it calls a paid API or page through the MCP.
• Paid in seconds — USDC settles on-chain, the agent gets its content, you get a receipt.

→ pay_for_resource("https://api.example.com/report")

  chain         solana:devnet
  resource      0.010 USDC
  service fee   0.001 USDC  → Verivyx
  status        200 OK · paid ✓

Supported chains

Payments settle in USDC. The MCP auto-selects the chain the resource advertises.

• Stellar — Soroban USDC, ~5s settlement.
• Base — EVM USDC via EIP-3009 (gasless for the payer).
• Solana — SPL USDC, sub-second settlement.

Tools

• list_supported_chains — which chains/assets are live, plus the service fee.
• wallet_info — the active paying wallet and network config per chain.
• quote_payment — preview the cost (resource price + fee) before paying.
• pay_for_resource — fetch a URL and pay automatically when required.

Connecting

The server speaks MCP over Streamable HTTP. Point any MCP client at it with your early-access key. Example client configuration:

{
  "mcpServers": {
    "verivyx": {
      "type": "streamable-http",
      "url": "https://mcp.verivyx.com/mcp",
      "headers": { "X-Verivyx-MCP-Key": "vxmcp_your_key" }
    }
  }
}

Then prompt your agent: “Use pay_for_resource to GET https://… and show me the result.”

Fees & custody

• Non-custodial — funds stay in your wallet via a capped, revocable spend authorization. Verivyx never holds your money.
• Flat fee — a simple $0.001 service fee per successful payment, on top of the resource price. Network gas is a fraction of a cent.

Get access

Early access is rolling out now. Join the waitlist