MySQL MCP Server

Context layer for PostgreSQL, SQL Server and MySQL that keeps selected data synchronized and provides governed retrieval, RAG, and AI agents without migrating the system of record.

OpenSEO is a credible open-source attempt to make serious SEO data usable by both humans and AI agents without a legacy-suite price floor. Its hosted plan starts at $10/month with metered DataForSEO-backed usage, while self-hosters can run the MIT-licensed stack and bring their own data key. The strongest differentiation is the combination of conventional SEO workflows, MCP and reusable agent skills; the main caveats are a still-young codebase, dependence on third-party data, several visible self-host/MCP edge cases, and hosted legal terms whose generic anti-automation wording is awkwardly aligned with a product explicitly built for agent-driven queries.

API-first web intelligence and research platform for AI agents, offering Web Search, Contents, Answer, Research and Finance Research APIs; a separate enterprise Chat/ARI surface remains available.

Open Wearables is one of the more substantive open-source options for teams that need a unified wearable-data layer and want health data to remain on infrastructure they control. Its MIT-licensed stack now covers multiple cloud and on-device providers, webhooks, mobile SDKs, open health scores and an MCP layer. The trade-off is ownership of operations: the project is still pre-1.0, provider APIs remain a moving target, health scores are non-clinical and evolving, and independent reliability/accuracy evidence is much thinner than the code and documentation surface.