Add x402 market state oracle integration example

Hi,

I noticed agentkit is building Coinbase's agent framework with x402 payment support.

I run headlessoracle.com — a signed market oracle with an MCP server and x402 payments. It gives AI agents a verified pre-trade gate: "Is this exchange open right now, with cryptographic proof?"

The MCP server is at headlessoracle.com/mcp (protocol 2024-11-05). Or via npm:

{
"mcpServers": {
"headless-oracle": {
"command": "npx",
"args": ["headless-oracle-mcp"]
}
}
}

Tools: get_market_status, get_market_schedule, list_exchanges, verify_receipt.

We're already on the Official MCP Registry (io.github.LembaGang/headless-oracle-mcp) and accept x402 payments at $0.001/attestation on Base mainnet. First payment settled today.

Might be a natural addition to the agentkit ecosystem — agents that trade should verify market state first.

— Mike (headlessoracle.com)