You can now try Sonar's data without signing up — no account, no API key, no card:
- Free anonymous endpoints — app search, app lookup, ASO score, keyword extraction, and keyword suggestions work with no
Authorizationheader at all (shared allowance of 30 requests/day per IP). - A taste of keyword metrics — difficulty + popularity for up to 5 keywords/day per IP, so you can see the numbers that matter before paying anything.
- Works everywhere — the free tier lives in the API itself, so it works from curl, the MCP server in Claude Desktop/Claude Code/Cursor, and any agent framework. Install
@sonarapp/mcpwith no key and ask your agent about ASO.
When you hit the free limit, the error tells you exactly how to continue: signing up is free and comes with 50 API credits, and the Full plan includes 1,000 requests/day plus rank tracking, competitor analysis, and the rest of Sonar.