odysseus-dev/odysseus · error · HTTPException

No image generation endpoint configured.

Error message

No image generation endpoint configured.

What it means

HTTP 400 raised by POST /api/gallery/style-transfer when no visible image-generation endpoint is configured for the user. Identical cause to the ai-upscale variant (553) with a shorter message: _first_visible_image_endpoint returned None, so there is no diffusion server to send the img2img request to.

Source

Thrown at routes/gallery/gallery_routes.py:626

        user = require_privilege(request, "can_generate_images")
        form = await request.form()
        file = form.get("image")
        prompt = form.get("prompt", "")
        strength = float(form.get("strength", "0.55"))
        if not file: raise HTTPException(400, "No image")

        image_bytes = await read_upload_limited(file, GALLERY_TRANSFORM_UPLOAD_MAX_BYTES, "Image upload")
        b64 = base64.b64encode(image_bytes).decode()

        db = SessionLocal()
        try:
            ep = _first_visible_image_endpoint(db, user)
        finally:
            db.close()

        if not ep:
            raise HTTPException(400, "No image generation endpoint configured.")

        base_url = ep.base_url.rstrip("/")
        if not base_url.endswith("/v1"):
            base_url += "/v1"

        try:
            async with httpx.AsyncClient(timeout=180) as client:
                resp = await client.post(f"{base_url}/images/generations", json={
                    "prompt": prompt,
                    "image": b64,
                    "strength": strength,
                    "response_format": "b64_json",
                })
                if resp.status_code == 200:
                    data = resp.json()
                    img_data = data.get("data", [{}])[0].get("b64_json", "")
                    if img_data:
                        return {"image": img_data}

View on GitHub (pinned to f9235ebbf1)

Solutions

1. Configure an image-generation endpoint in Settings with a valid base_url.
2. Ensure endpoint visibility includes the requesting user.
3. Surface a setup prompt in the UI when this 400 arrives instead of showing a generic failure.

const eps = await getVisibleImageEndpoints();
if (!eps.length) { showSetupGuide('Configure an image generation endpoint'); return; }

const hasImageEndpoint = (eps) => Array.isArray(eps) && eps.length > 0;

try { await styleTransfer(fd); } catch (e) { if (e.status === 400 && /endpoint/.test(e.message)) redirectToSettings(); }

When it happens

Trigger: Running style transfer before any image endpoint is added, or when all configured endpoints are hidden from the requesting user.

Common situations: Post-install onboarding gap; endpoint visibility scoped per user or role; environment where the models table was cleared.

Related errors

• No image generation endpoint configured. Add one in Settings
• HTTP ${resp.status}${detail ? `: ${detail}` : ''}
• HTTP ${saveRes.status}: ${errBody.substring(0, 120)}
• HTTP ${res.status}${body ? ': ' + body.slice(0, 160) : ''}
• Selected model endpoint was removed. Pick another model in S

AI-assisted analysis of odysseus-dev/odysseus@f9235ebbf1 (2026-08-14). Data as JSON: /api/errors/4fcd93f6add68346. Report an issue: GitHub.