Transcribe realtime turns over the pod's own loopback

Shipped: September 25, 2026 at 1:19 AM UTC
Author: Kamo
Commit: d3a17df

Speaches 0.9.0-rc.3 posts every realtime turn to /v1/audio/transcriptions. With LOOPBACK_HOST_URL unset it makes that call in-process through httpx's ASGITransport, which the image's locked FastAPI (0.121.1) rejects with "fastapi_middleware_astack not found in request scope", so no realtime turn ever completes and STT streaming would attest as failed. Reproduced on a local Speaches built from the same tag and uv.lock with the pinned models: set to http://127.0.0.1:8000 (the bearer key travels with the call), turns complete. Loopback traffic never leaves the pod, so the network policy is unchanged.

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