Cleanor MCP grows from 4 to 22 read-only tools and now ships output schemas on every tool.
Highlights
- Structured output: all 22 tools declare an
outputSchemaand return validatedstructuredContent, so agents get machine-readable results (not just text). - 18 deterministic dev utilities for the operations LLMs get wrong:
hash,hmac,uuid,base64,json_format,jwt_decode,regex_test,cron_describe,unit_convert,datetime,url_parse,base_convert,diff,color,color_palette,slugify,count,placeholder_image. - 4 signature tools:
optimize_image(WebP/AVIF/JPEG), plus cited Cleanor Labs data (storage_capacity,image_format_savings) andqr_code.
Use it
- Hosted (zero-auth, Streamable HTTP):
https://mcp.cleanor.app/mcp - Local stdio:
npx @cleanor/mcp - Registry:
app.cleanor/cleanor
No API key, no signup. Every tool is read-only and safe to auto-run.