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Apr 20, 2026
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Add tldr docs for responses-api-proxy #18604

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28 changes: 28 additions & 0 deletions codex-rs/responses-api-proxy/README.md
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# codex-responses-api-proxy

#### tl;dr:

```
# Launch the proxy, dump request/response pairs to /tmp/proxy
cd path/to/codex/codex-rs
cargo build
echo $OPENAI_API_KEY | ./target/debug/codex-responses-api-proxy \
--port 60001 \
--dump-dir /tmp/proxy


# Add this to ~/.codex/config.toml:

[model_providers.codex-responses-api-proxy]
name = 'codex-responses-api-proxy'
base_url = 'http://127.0.0.1:60001/v1'
wire_api='responses'

[profiles.proxy]
model_provider = "codex-responses-api-proxy"


# Use it
codex -p proxy
```

# Detailed docs

A strict HTTP proxy that only forwards `POST` requests to `/v1/responses` to the OpenAI API (`https://api.openai.com`), injecting the `Authorization: Bearer $OPENAI_API_KEY` header. Everything else is rejected with `403 Forbidden`.

## Expected Usage
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