# libregistry

> Compatibility lab — verified library, model, Docker, MCP, and IAM data across OS and runtime environments.

All endpoints return JSON. No authentication required for read access (rate-limited). API key removes rate limits.

## Collections

- Registry: 100K+ libraries across Python, JavaScript, Go, Rust, PHP, Ruby, Java. Includes install status, version, language, categories, and compatibility matrix per Python version.
- Models: LLM, vision, audio, image-generation, and embedding models. Includes provider, context window, pricing, modalities, deprecation dates.
- MCP Servers: Model Context Protocol servers. Includes install commands, tool schemas, transport type, GitHub stars.
- Docker Images: Official Docker Hub images. Includes variants, EOL dates, base OS, libc type, pull counts.
- IAM Services: AWS, GCP, and Azure IAM services. Includes permission lists and least-privilege policy examples.

## API

Base URL: https://api.libregistry.com

### Registry
- GET /registry — list libraries. Params: q, language, status, category, verified_only, limit, offset
- GET /registry/{library} — full library record with compatibility matrix

### Models
- GET /models — list models. Params: q, provider, model_type, limit, offset
- GET /models/{slug} — full model record

### MCP Servers
- GET /mcp — list servers. Params: q, category, transport, limit, offset
- GET /mcp/{slug} — full MCP server record

### Docker Images
- GET /docker — list images. Params: q, category, base_os, limit, offset
- GET /docker/{slug} — full Docker image record

### IAM Services
- GET /iam — list services. Params: q, cloud, category, limit, offset
- GET /iam/{slug} — full IAM service record with permissions

## Authentication

Unauthenticated requests are rate-limited. To remove rate limits, include an API key:

  Authorization: Bearer {your_api_key}

Get a key: https://libregistry.com/account

## Sitemap

https://libregistry.com/sitemap.xml