# Limitry > Limitry is the runtime that decides, at request time, whether a user, workspace, API key or agent may do something at a given cost — usage, credits, quotas, budgets, concurrency and entitlements in one check. ## Docs - [Documentation index](https://limitry.com/docs/llms.txt): every page, with summaries - [Full documentation](https://limitry.com/docs/llms-full.txt): all pages as plain text ## API - [OpenAPI specification](https://api.limitry.com/v1/openapi.json): machine-readable description of the public API - [API reference](https://api.limitry.com/v1/docs): interactive reference ## Agents - [Use with AI agents](https://limitry.com/docs/agents/): connect an MCP client, drive the command line, install the skill - [MCP server](https://mcp.limitry.com/mcp): remote MCP endpoint — OAuth sign-in, one workspace per connection - [Agent skill](https://limitry.com/docs/skill/SKILL.md): a SKILL.md teaching an agent the command line, MCP tools and API ## Pricing - [Pricing](https://limitry.com/pricing/): plans, limits and what each includes ## Optional - [Security](https://limitry.com/security/): hosting, encryption, access, sub-processors, vulnerability reporting - [Contact](https://limitry.com/contact/): support, sales and security addresses