---
title: "Comprehend Medical Proxy Route"
method: POST
path: "/comprehendmedical/{operation}"
tags: ["llm_passthrough"]
---

# Comprehend Medical Proxy Route

`POST /comprehendmedical/{operation}`

## Request

- Base URL: `https://api.sea-lion.ai` (the document declares no server; this is the origin it was published from)
- URL: `https://api.sea-lion.ai/comprehendmedical/{operation}`
- Auth: API key in header `x-litellm-api-key`

Pass-through for Amazon Comprehend Medical, e.g. `POST /comprehendmedical/DetectEntitiesV2`.

The request body is forwarded as-is to the AWS JSON 1.1 API and signed with SigV4
using the proxy's AWS credentials.

[Docs](https://docs.litellm.ai/docs/pass_through/comprehend_medical)

## Path parameters

- `operation` string, required

## Response `200`

Successful Response

- unknown

## Other responses

- `422`: Validation Error

## Changes

- **2026-10-21** `f2fb14eab3f5`: 1 info
  - endpoint added

[Operation history](https://skmtc.dev/sea-lion/apis/litellm-api/changes/comprehendmedical/:operation/post.md)

---

[API](https://skmtc.dev/sea-lion/apis/litellm-api.md) · [All operations](https://skmtc.dev/sea-lion/apis/litellm-api/llms.txt) · [OpenAPI document](https://skmtc.dev/sea-lion/apis/litellm-api/revisions/5efb88d3bf35?raw)