apply this into your ~/.openclaw/openclaw.json and enjoy free claude model access!

"providers": {
  "anyrouter": {
    "baseUrl": "https://anyrouter.top",
    "apiKey": "sk-free",
    "api": "anthropic-messages",
    "models": [
      {
        "id": "claude-opus-4-5-20251101",
        "name": "Claude Opus 4.5",
        "reasoning": true,
        "input": [
          "text",
          "image"
        ],
        "cost": {
          "input": 0,
          "output": 0,
          "cacheRead": 0,
          "cacheWrite": 0
        },
        "contextWindow": 200000,
        "maxTokens": 8192
      }
    ]
  }
},
"agents": {
  "defaults": {
    "model": {
      "primary": "anyrouter/claude-opus-4-5-20251101"
    },
  }
}