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Tom Quist 4d8d44721d Fix MCP API proxy support for streaming and headers (#6461 )

* Fix MCP API proxy support for streaming and headers

This commit fixes two issues with using the core API core/api/mcp through
the API proxy:

1. **Streaming support**: The proxy now detects text/event-stream responses
   and properly streams them instead of buffering all data. This is required
   for MCP's Server-Sent Events (SSE) transport.

2. **Header forwarding**: Added MCP-required headers to the forwarded headers:
   - Accept: Required for content negotiation
   - Last-Event-ID: Required for resuming broken SSE connections
   - Mcp-Session-Id: Required for session management across requests

The proxy now also preserves MCP-related response headers (Mcp-Session-Id)
and sets X-Accel-Buffering to "no" for streaming responses to prevent
buffering by intermediate proxies.

Tests added to verify:
- MCP headers are properly forwarded to Home Assistant
- Streaming responses (text/event-stream) are handled correctly
- Response headers are preserved

* Refactor: reuse stream logic for SSE responses (#3)

* Fix ruff format + cover streaming payload error

* Fix merge error

* Address review comments (headers / streaming proxy) (#4)

* Address review: header handling for streaming/non-streaming

* Forward MCP-Protocol-Version and Origin headers

* Do not forward Origin header through API proxy (#5)

---------

Co-authored-by: Stefan Agner <stefan@agner.ch>

2026-02-04 17:28:11 +01:00

.devcontainer

Update Python to 3.13 (#5564 )

2025-01-21 11:57:30 +01:00

.github

Instruct agents to use relative imports within supervisor package (#6522 )

2026-02-03 13:36:12 +01:00

.vscode

Migrate to Ruff for lint and format (#4852 )

2024-02-05 11:37:39 -05:00

rootfs/etc

Avoid empty newlines in Supervisor logs (#4698 )

2023-11-13 20:12:17 +01:00

script

Add mypy to ci and precommit (#5969 )

2025-06-24 11:48:03 +02:00

supervisor

Fix MCP API proxy support for streaming and headers (#6461 )

2026-02-04 17:28:11 +01:00

tests

Fix MCP API proxy support for streaming and headers (#6461 )

2026-02-04 17:28:11 +01:00

wheels

Use unpublished local wheels during PR builds (#6374 )

2025-12-02 14:08:07 +01:00

.dockerignore

Use unpublished local wheels during PR builds (#6374 )

2025-12-02 14:08:07 +01:00

.gitignore

Use unpublished local wheels during PR builds (#6374 )

2025-12-02 14:08:07 +01:00

.ha-frontend-version

Update frontend to version 20250925.1 (#6120 )

2025-09-26 12:42:39 +02:00

.hadolint.yaml

Revert "Revert "Update base images to 3.11-alpine3.18 (#4639 )" (#4646 )" (#4657 )

2023-11-02 11:29:15 +01:00

.pre-commit-config.yaml

Bump ruff from 0.14.2 to 0.14.3 (#6280 )

2025-10-31 11:42:39 -04:00

.vcnignore

Sign code folder (#2725 )

2021-03-16 15:47:40 +01:00

AGENTS.md

Add AGENTS.md symlink (#6237 )

2025-10-08 10:44:49 +02:00

build.yaml

Remove cosign from container (#6442 )

2025-12-20 08:56:36 -05:00

CLAUDE.md

Add GitHub Copilot/Claude instruction (#5986 )

2025-07-04 07:05:05 +02:00

codecov.yaml

Remove annotations (#2007 )

2020-09-03 16:36:09 +02:00

Dockerfile

Remove cosign from container (#6442 )

2025-12-20 08:56:36 -05:00

LICENSE

Update LICENSE

2020-07-29 14:45:37 +02:00

MANIFEST.in

…

pyproject.toml

Bump setuptools from 80.9.0 to 80.10.1 (#6488 )

2026-01-22 08:29:19 +01:00

README.md

Add OHF logo to README (#5316 )

2024-09-30 18:42:08 +02:00

requirements_tests.txt

Bump coverage from 7.13.2 to 7.13.3 (#6528 )

2026-02-04 11:29:35 +01:00

requirements.txt

Bump orjson from 3.11.6 to 3.11.7 (#6517 )

2026-02-03 10:51:51 +01:00

setup.py

Use version which is treated CalVer by AwesomeVersion (#5572 )

2025-01-24 09:59:50 +01:00

tox.ini

Migrate to Ruff for lint and format (#4852 )

2024-02-05 11:37:39 -05:00

README.md

Home Assistant Supervisor

First private cloud solution for home automation

Home Assistant (former Hass.io) is a container-based system for managing your Home Assistant Core installation and related applications. The system is controlled via Home Assistant which communicates with the Supervisor. The Supervisor provides an API to manage the installation. This includes changing network settings or installing and updating software.

Installation

Installation instructions can be found at https://home-assistant.io/getting-started.

Development

For small changes and bugfixes you can just follow this, but for significant changes open a RFC first. Development instructions can be found here.

Release

Releases are done in 3 stages (channels) with this structure:

Pull requests are merged to the main branch.
A new build is pushed to the dev stage.
Releases are published.
A new build is pushed to the beta stage.
The stable.json file is updated.
The build that was pushed to beta will now be pushed to stable.