TmpState.dev
TmpState (temp state) - a tokenless temporary JSON database. One curl creates a database; the URL is the only credential. No signup, no API keys, 24h free, $1 to keep for a week. Also a zero-key MCP server: https://tmpstate.dev/mcp.
Some of the top features or benefits of TmpState.dev are: Simple Concept, Useful for Prototyping, Developer-Focused, Potentially Low Setup Overhead, and Niche Utility. You can visit the info page to learn more.
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