400860 x402 Growth and Safety Catalog

● healthy a2a-agent

Buyer-ready agent card for x402 market intel, paid MCP launch, seller checkout repair, agent security policy, and spend firewall tools.

How to call

cURL · x402-fetch / x402-axios will auto-handle 402

curl -X POST https://api.400860.xyz/.well-known/agent-card.json

/.well-known/x402.json