Deno KV Has a Free API: Built-In Key-Value Database with Zero Configuration

What is Deno KV? Deno KV is a built-in key-value database that ships with the Deno runtime. No installation, no configuration, no connection strings. Just Deno.openKv() and you have a globally distributed database. Free on Deno Deploy: unlimited reads, 1 GB storage . Quick Start const kv = await Deno . openKv (); // Set await kv . set ([ " users " , " user_123 " ], { name : " Alice " , email : " alice@example.com " , plan : " pro " , }); // Get const user = await kv . get ([ " users " , " user_123 " ]); console . log ( user . value ); // {name: "Alice", ...} // Delete await kv . delete ([ " users " , " user_123 " ]); That's it. No npm install , no database setup. Hierarchical Keys // Keys are arrays — naturally hierarchical await kv . set ([ " posts " , " 2026 " , " 03 " , " my-post " ], { title : " Hello " , body : " ... " }); await kv . set ([ " posts " , " 2026 " , " 03 " , " another " ], { title : " World " , body : " ... " }); // List all March 2026 posts const posts = kv . list (