Show HN: Hosted JayBase – An append-only data store for safe AI agent writes

Category: database

Tags: append-only, ai-agents, event-sourcing, mcp, data-store

Score: 7.0/10 (Innovation: 7, Technical: 7, Documentation: 8, Utility: 6)

Stellar Jay (formerly JayBase) is an append-only, versioned data store designed for safe AI agent writes, providing attribution, reversibility, and tamper-evident history. It combines event sourcing with MCP integration, making it a compelling foundation for agent-native business applications where data integrity and auditability are critical.

Target audience: backend devs, AI engineers, operations teams

Repository: https://jaybase.ai · Go · AGPL-3.0 · 9 stars

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