# FitLLM Agent API API

**Canonical:** https://apis.io/apis/fitllm-run/fitllm-agent-api-api/  
**Provider:** FitLLM — https://apis.io/providers/fitllm-run/  
**Base URL:** https://fitllm.run  
**Documentation:** https://fitllm.run/openapi.json

FitLLM Agent API API is one of 2 APIs that [FitLLM](https://apis.io/providers/fitllm-run/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. The published artifact set on APIs.io includes an OpenAPI specification.

Will this local LLM fit this hardware? Auditable, architecture-aware memory estimates (MLA / sliding-window / hybrid-linear / MoE), with documented runtime/OS reserves. No auth, no key. Engine: MIT (github.com/click6067-ship-it/fitllm-engine) · data: CC0 (fitllm.run/data).

## Operations (2)

| Method | Path | Summary |
|---|---|---|
| GET | `/api/check` | Check whether an LLM fits on a GPU (incl. multi-GPU rigs) or Apple Silicon Mac |
| GET | `/api/badge` | shields.io endpoint badge for a model×hardware verdict (live) |

## Machine-readable artifacts (1)

- **OpenAPI** — https://artifacts.apis.io/fitllm-run/openapi/_original/fitllm-run-api-openapi.json

## Other FitLLM APIs (1)

- [FitLLM Agent API](https://apis.io/apis/fitllm-run/fitllm-agent-api/)

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/fitllm-run/fitllm-agent-api-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/fitllm-run/.