Mengram.io is an AI memory API that captures three types of memory — semantic (facts), episodic (events), and procedural (learned workflows) — all with a single API call. Its killer feature: your agent completes a task, Mengram records the steps, and next time it already knows the optimal path with success/failure tracking. Works with Claude (MCP), LangChain, CrewAI, and OpenClaw. Free, open-source (Apache 2.0).