For AI agents: the complete documentation index is available at https://aioproxy.dev/llms.txt, the full documentation bundle is available at https://aioproxy.dev/llms-full.txt, and this page is available as Markdown at https://aioproxy.dev/guide/configuration/transforms.md.
AIO Proxy
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      • Request & Response Transforms

      Transforms allow you to adjust incoming requests, inject default hyperparameters, or modify response payloads without modifying client code.

      config.jsonc
      {
  "router": {
    "models": {
      "gpt-5": {
        "params": {
          "temperature": 0.7,
          "max_tokens": 4096,
        },
        "overrides": {
          "openai": {
            "model": "gpt-5-turbo",
          },
        },
      },
    },
  },
}

      Practical Scenarios

      1. Parameter Clamping: Ensure consistent temperature or enforce context length limits across different clients.
      2. Model Rewriting: Expose a unified model name (gpt-5) externally, while mapping to provider-specific model IDs internally (gpt-5-2026-preview).
      3. Response Headers: Inject custom debugging headers or trace IDs into client responses.