{"name":"PHANTOM ID","description":"Universal payment infrastructure for autonomous AI agents.","protocol_version":"phantom-pay/1","entrypoints":{"capabilities":"/v1/capabilities","assets":"/v1/assets","networks":"/v1/networks","quote":"POST /v1/quotes","receipt_verify":"GET /v1/receipts/verify","openapi":"/openapi.json","agent_card":"/.well-known/agent-card.json","mcp":"/mcp","a2a":"/a2a"},"rules":["Always verify the platform fee in the signed quote before authorizing.","submit_payment is irreversible once broadcast.","Use idempotency_key; retries with the same key never double-pay."]}