Single-hop SQL memory session on db.gedx402.com — one x402 payment prepays sql/exec write and sql/query read credits. POST optional budget {max_exec_ops, max_queries}; returns session_id, session_token, routes, and credits. $0.69 USDC wire settlement (budget caps apply). Send session_token on query/exec (header X-Memory-Session-Token or body) — no 402 until credits exhausted. Bundle hero: GET /v1/models?bundle=memory.

Write SQL on shared agent memory database. POST INSERT, UPDATE, DELETE, CREATE, DROP, ALTER, or REPLACE with optional params; UPDATE/DELETE require WHERE; changes capped at 100 rows. With valid session_token, no x402 until exec credits exhausted. Bundle: GET /v1/models?bundle=memory. Shard omitted from default OpenAPI discovery.

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.