---
title: "List registered runtime harnesses"
method: GET
path: "/api/runtime-harnesses"
tags: ["Runtimes"]
---

# List registered runtime harnesses

`GET /api/runtime-harnesses`

## Response `200`

List of registered runtimes

- RuntimeHarnessesResponse
  - `harnesses` RuntimeHarness[]
    - `alias` string
    - `api_spec` 'claude_managed_agents' | 'cursor' | 'gemini_antigravity' | 'elastic_agent_builder'
    - `display_name` string
    - `api_base` string
    - `is_default` boolean
    - `connected` boolean
    - `masked_api_key` string, nullable
    - `tools` object[]

## Other responses

- `401` — Unauthorized

---

[API](https://skmtc.dev/litellm-agent-platform/apis/litellm-agent-platform-api.md) · [All operations](https://skmtc.dev/litellm-agent-platform/apis/litellm-agent-platform-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/litellm-agent-platform/litellm-agent-platform-api/revisions/92039c29a228/schema)