The sound effects API for developers
Search, stream, and download thousands of royalty-free sounds with a simple REST API. One key, one header, works with any language, framework, or AI agent.
Free to browse. Pro starts at $15/mo for API access.
Preview sounds from the API
Browse full catalog →Cinematic Impact
UI Button Click
Footsteps on Gravel
Rain on Window
Ocean Waves Loop
Forest Ambience
Sci-fi Whoosh
Thunder Crack
Campfire Crackle
Lofi Vinyl Hiss
Underwater Bubbles
City Traffic
10,500+
Royalty-free sounds
CC0
License | no attribution
<100ms
Avg API response time
99.9%
Uptime SLA
Built for every use case
From AI agents that fetch sounds on the fly to game studios building dynamic audio, one API covers it all.
AI agents & LLMs
The API accepts natural language queries — pass your user's prompt straight to the search endpoint. Perfect for ChatGPT function calling, LangChain tools, and custom agents.
Games & interactive apps
Load sound effects dynamically instead of bundling asset packs. Search by tag, filter by duration, and stream directly into your game engine.
Web & mobile apps
Add notification sounds, UI feedback, or ambient audio to your app. Fetch what you need at runtime — no static asset folders, no license headaches.
Content & media pipelines
Build pipelines that search for sounds, download them, and stitch them into video or podcast productions — all driven by API calls.
How it works
Three steps to sound effects in your app.
Get your API key
Sign up and grab your key from the dashboard. One header — no OAuth, no SDKs.
Search with natural language
Describe the sound you need. Our API finds the closest matches.
curl api.lotsofsounds.com/v1/sounds -d "q=gentle rain"Stream or download
Get signed URLs to stream in-app or download the file. Works from any stack.
Frequently asked questions
Sign up for a Pro plan, generate an API key, and make a GET request to /api/v1/sounds with your search query. You'll get back JSON with sound metadata and can stream or download any result. It works from any language — JavaScript, Python, Go, or even a cURL command.
Yes — Lotsofsounds is designed for programmatic use including AI agents and LLM function calling. The API uses simple GET requests with an API key header, returns clean JSON, and supports natural language search queries. Pass your user's request straight to the q parameter.
Every sound in the library is licensed under CC0 — royalty-free, no attribution required, cleared for commercial use. Use them in shipped products, games, AI applications, content, or anything else without licensing fees.
Pro plans include 2,500 API requests per day and unlimited downloads. Enterprise plans include 50,000 requests per day and unlimited downloads. Rate limit headers (X-RateLimit-Remaining) are included in every response so your app can handle request limits gracefully.
No. The API is plain REST — any HTTP client works. Add your API key as an x-api-key header and make standard GET requests. No SDK to install, no dependencies to manage, no breaking changes to track.
The library includes thousands of sounds across four categories: sound effects (clicks, impacts, footsteps, explosions), music tracks (beats, melodies, electronic), lofi (chill beats, vinyl crackle), and ambient (rain, forest, ocean, city). All searchable by keyword and filterable by tags and duration.
Free accounts can browse the full catalog and preview sounds in the web dashboard. API access for programmatic search, streaming, and downloads starts at $15/month with the Pro plan.
Get access to royalty-free sounds today
One API key. Thousands of royalty-free sounds. Integrate in minutes, not weeks | so you can focus on what you're building.
Free to explore. No credit card required. Pro from $15/mo.