---
title: "claude-opus-5-5 (best)"
method: POST
path: "/api/v1/claude-opus-5-5"
tags: ["LLM / Multimodal"]
---

# claude-opus-5-5 (best)

`POST /api/v1/claude-opus-5-5`

## Request

- Base URL: `https://api.muapi.ai`
- URL: `https://api.muapi.ai/api/v1/claude-opus-5-5`
- Auth: one of:
  - API key in header `x-api-key`
  - OAuth 2 (client credentials, token URL `https://api.muapi.ai/oauth/token`)

Generate text using Claude Opus 5.5 (Anthropic, most capable). Input: text prompt. Output: text. Use for: complex reasoning, creative writing, analysis.

## Query parameters

- `webhook` string
- `team_id` integer, nullable

## Headers

- `x-api-key` string
- `x-embed-code` string, nullable
- `x-agent-embed-code` string, nullable
- `x-whitelabel-studio` string, nullable
- `authorization` string, nullable

## Request body

- ClaudeOpus55Request
  - `prompt` string, required
  - `image_url` string, uri, nullable
  - `system_prompt` string, nullable
  - `webhook_url` string, uri, nullable

## Response `200`

Successful Response

- unknown

## Other responses

- `422`: Validation Error

---

[API](https://skmtc.dev/muapi/apis/muapi-api.md) · [All operations](https://skmtc.dev/muapi/apis/muapi-api/llms.txt) · [OpenAPI document](https://skmtc.dev/muapi/apis/muapi-api/revisions/e4b7374381e5?raw)