SFXMint

SFXMint is a library of more than 10,300 CC0 sound effects for videos, games, and apps. Anyone can search and preview the library and download 10 MP3s a day without creating an account. Sounds from the library can be used commercially without attribution. WAV files and ZIP packs are available as a one-time purchase. Developers can query the library through a free JSON API and an MCP server at https://sfxmint.com/mcp. Without an API key, each network can make 20 lookups or MCP tool calls and 5 downloads per day. A free account key raises that to 100 lookups and 20 downloads per day (300 per month). API docs: https://sfxmint.com/api/docs