Read-only SQL on shared agent memory database. POST SELECT with optional params; results capped at 1000 rows. With valid session_token from POST /v1/memory/sessions, no x402 until query credits exhausted. x402 settlement USDC per request (see npm run pricing:report) worst-case per standalone query. Hero: GET /heroes/sql-query. Bundle: GET /v1/models?bundle=memory. Shard omitted from default OpenAPI discovery.