MantleDB

Store and fetch JSON over HTTP with no signup or schema, plus an MCP server so AI assistants can keep memory, good for prototypes.

mantledb.sh · Free plan

Visit mantledb.sh ↗would rather buy than build

Running since2026Launch year from the maker

Details

Knowl
Gives AI coding agents a memory that lasts between sessions and replaces facts when they change, with sources for each.
Since 2026
Free plan · Developer tools · Developers
memsprout
Team members record their knowledge once and an MCP server passes it to ChatGPT, Copilot, Cursor and Claude Code as shared context.
Since 2026
Subscription · Developer tools · Developers
Artifacta
Stores files made by AI agents and turns them into shareable web pages that show which agent and model made them.
Since 2026
Free plan · Developer tools · Developers
CalmSEO
A hosted MCP server and REST API that gives Claude, ChatGPT or Cursor your Search Console data, SERPs and keyword volumes.
Since 2026
Free plan · SEO