apicheats.dev anthropic/llms.txt Raw .md
GET

GET /v1/models/{model_id}?beta=true — Claude API

Beta

Anthropic API key (required); https://api.anthropic.com

Claude API

Get a Model

Base URL
https://api.anthropic.com
Auth
x-api-key: <ANTHROPIC_API_KEY>
Last verified
2026-10-20 · upstream hash matched
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Critical gotchas

Authentication uses the x-api-key header and requests also require an anthropic-version header.

The official OpenAPI URL is discovered from the SDK repository manifest and must remain under Anthropic's trusted Stainless storage prefix.

cURL

curl -X GET 'https://api.anthropic.com/v1/models/model-id?beta=true' \  -H "x-api-key: $ANTHROPIC_API_KEY" \  -H 'anthropic-version: 2023-06-01'

Parameters

Name In Type Required Description
model_id path string Yes Model identifier or alias.

Response 200 OK

{
  "allowed_fallback_models": [
    "string"
  ],
  "capabilities": {
    "batch": {
      "supported": true
    },
    "citations": {
      "supported": true
    },
    "code_execution": {
      "supported": true
    },
    "context_management": {
      "clear_thinking_20251015": {
        "supported": true
      },
      "clear_tool_uses_20250919": {
        "supported": true
      },
      "compact_20260112": {
        "supported": true
      },
      "supported": true
    },
    "effort": {
      "high": {
        "supported": true
      },
      "low": {
        "supported": true
      },
      "max": {
        "supported": true
      },
      "medium": {
        "supported": true
      },
      "supported": true,
      "xhigh": {
        "supported": true
      }
    },
    "image_input": {
      "supported": true
    },
    "pdf_input": {
      "supported": true
    },
    "structured_outputs": {
      "supported": true
    },
    "thinking": {
      "supported": true,
      "types": {
        "adaptive": {
          "supported": true
        },
        "enabled": {
          "supported": true
        }
      }
    }
  },
  "created_at": "2026-09-03T00:00:00Z",
  "display_name": "string",
  "id": "string",
  "max_input_tokens": 0,
  "max_tokens": 0,
  "type": "model"
}
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