Image Generation MCP Server

claude mcp add image-generation-mcp-server -e 'IMAGE_GENERATION_MCP_KV_STORE_URL=file:///data/state' -e 'IMAGE_GENERATION_MCP_TOOLS_ALLOW=<IMAGE_GENERATION_MCP_TOOLS_ALLOW>' -e 'IMAGE_GENERATION_MCP_TOOLS_DENY=<IMAGE_GENERATION_MCP_TOOLS_DENY>' -e 'IMAGE_GENERATION_MCP_SERVER_NAME=<IMAGE_GENERATION_MCP_SERVER_NAME>' -e 'IMAGE_GENERATION_MCP_INSTRUCTIONS=<IMAGE_GENERATION_MCP_INSTRUCTIONS>' -e 'FASTMCP_LOG_LEVEL=INFO' -e 'FASTMCP_ENABLE_RICH_LOGGING=true' -e 'IMAGE_GENERATION_MCP_A1111_HOST=<IMAGE_GENERATION_MCP_A1111_HOST>' -e 'IMAGE_GENERATION_MCP_A1111_MODEL=<IMAGE_GENERATION_MCP_A1111_MODEL>' -e 'IMAGE_GENERATION_MCP_READ_ONLY=true' -e 'IMAGE_GENERATION_MCP_SCRATCH_DIR=~/.image-generation-mcp/images' -e 'IMAGE_GENERATION_MCP_OPENAI_API_KEY=<your image_generation_mcp_openai_api_key>' -e 'IMAGE_GENERATION_MCP_GOOGLE_API_KEY=<your image_generation_mcp_google_api_key>' -e 'IMAGE_GENERATION_MCP_SD_WEBUI_HOST=<IMAGE_GENERATION_MCP_SD_WEBUI_HOST>' -e 'IMAGE_GENERATION_MCP_SD_WEBUI_MODEL=<IMAGE_GENERATION_MCP_SD_WEBUI_MODEL>' -e 'IMAGE_GENERATION_MCP_DEFAULT_PROVIDER=auto' -e 'IMAGE_GENERATION_MCP_TRANSFORM_CACHE_SIZE=64' -e 'IMAGE_GENERATION_MCP_PAID_PROVIDERS=openai' -e 'IMAGE_GENERATION_MCP_STYLES_DIR=~/.image-generation-mcp/styles' -e 'IMAGE_GENERATION_MCP_ALLOW_LOCAL_FILE_INPUT=false' -e 'IMAGE_GENERATION_MCP_MAX_INPUT_IMAGE_BYTES=20971520' -e 'IMAGE_GENERATION_MCP_FETCH_TIMEOUT_S=30.0' -e 'IMAGE_GENERATION_MCP_TRANSFER_TTL_DEFAULT_S=3600.0' -e 'IMAGE_GENERATION_MCP_TRANSFER_TTL_MAX_S=86400.0' -e 'IMAGE_GENERATION_MCP_TRANSFER_GRACE_TTL_S=60.0' -e 'IMAGE_GENERATION_MCP_TRANSFER_LEASE_S=60.0' -e 'IMAGE_GENERATION_MCP_TRANSFER_MAX_UPLOAD_BYTES=104857600' -- uvx image-generation-mcp==1.12.1

{
    "mcpServers": {
        "image-generation-mcp-server": {
            "command": "uvx",
            "args": [
                "image-generation-mcp==1.12.1"
            ],
            "env": {
                "IMAGE_GENERATION_MCP_KV_STORE_URL": "file:///data/state",
                "IMAGE_GENERATION_MCP_TOOLS_ALLOW": "<IMAGE_GENERATION_MCP_TOOLS_ALLOW>",
                "IMAGE_GENERATION_MCP_TOOLS_DENY": "<IMAGE_GENERATION_MCP_TOOLS_DENY>",
                "IMAGE_GENERATION_MCP_SERVER_NAME": "<IMAGE_GENERATION_MCP_SERVER_NAME>",
                "IMAGE_GENERATION_MCP_INSTRUCTIONS": "<IMAGE_GENERATION_MCP_INSTRUCTIONS>",
                "FASTMCP_LOG_LEVEL": "INFO",
                "FASTMCP_ENABLE_RICH_LOGGING": "true",
                "IMAGE_GENERATION_MCP_A1111_HOST": "<IMAGE_GENERATION_MCP_A1111_HOST>",
                "IMAGE_GENERATION_MCP_A1111_MODEL": "<IMAGE_GENERATION_MCP_A1111_MODEL>",
                "IMAGE_GENERATION_MCP_READ_ONLY": "true",
                "IMAGE_GENERATION_MCP_SCRATCH_DIR": "~/.image-generation-mcp/images",
                "IMAGE_GENERATION_MCP_OPENAI_API_KEY": "<your image_generation_mcp_openai_api_key>",
                "IMAGE_GENERATION_MCP_GOOGLE_API_KEY": "<your image_generation_mcp_google_api_key>",
                "IMAGE_GENERATION_MCP_SD_WEBUI_HOST": "<IMAGE_GENERATION_MCP_SD_WEBUI_HOST>",
                "IMAGE_GENERATION_MCP_SD_WEBUI_MODEL": "<IMAGE_GENERATION_MCP_SD_WEBUI_MODEL>",
                "IMAGE_GENERATION_MCP_DEFAULT_PROVIDER": "auto",
                "IMAGE_GENERATION_MCP_TRANSFORM_CACHE_SIZE": "64",
                "IMAGE_GENERATION_MCP_PAID_PROVIDERS": "openai",
                "IMAGE_GENERATION_MCP_STYLES_DIR": "~/.image-generation-mcp/styles",
                "IMAGE_GENERATION_MCP_ALLOW_LOCAL_FILE_INPUT": "false",
                "IMAGE_GENERATION_MCP_MAX_INPUT_IMAGE_BYTES": "20971520",
                "IMAGE_GENERATION_MCP_FETCH_TIMEOUT_S": "30.0",
                "IMAGE_GENERATION_MCP_TRANSFER_TTL_DEFAULT_S": "3600.0",
                "IMAGE_GENERATION_MCP_TRANSFER_TTL_MAX_S": "86400.0",
                "IMAGE_GENERATION_MCP_TRANSFER_GRACE_TTL_S": "60.0",
                "IMAGE_GENERATION_MCP_TRANSFER_LEASE_S": "60.0",
                "IMAGE_GENERATION_MCP_TRANSFER_MAX_UPLOAD_BYTES": "104857600"
            }
        }
    }
}

متغيرات البيئة

• IMAGE_GENERATION_MCP_KV_STORE_URL Persistent-state backend URL shared by every pvl-core subsystem that needs state. `memory://` is in-process and lost on restart; `file:///path` persists on one server; `redis://`, `dynamodb://` and `mongodb://` each need their matching extra. When unset, defaults to `file:///data/state` (the volume family Docker images mount), or to `memory://` — with a warning — on a host where that directory is not usable.
• IMAGE_GENERATION_MCP_TOOLS_ALLOW Comma-separated explicit tool names this instance exposes; every other tool is hidden from listings and cannot be invoked. Names matching no registered tool are inert. Mutually exclusive with `tools_deny`. Takes effect through `apply_tool_visibility`.
• IMAGE_GENERATION_MCP_TOOLS_DENY Comma-separated explicit tool names hidden from this instance (absent from listings, cannot be invoked). Names matching no registered tool are inert. Mutually exclusive with `tools_allow`. Takes effect through `apply_tool_visibility`.
• IMAGE_GENERATION_MCP_SERVER_NAME Rename this server instance; defaults to the project name.
• IMAGE_GENERATION_MCP_INSTRUCTIONS Replaces the default MCP instructions text sent to clients.
• FASTMCP_LOG_LEVEL Log level for FastMCP internals and app loggers (DEBUG / INFO / WARNING / ERROR / CRITICAL). The -v CLI flag overrides to DEBUG.
• FASTMCP_ENABLE_RICH_LOGGING Set false for plain or structured JSON log output.
• IMAGE_GENERATION_MCP_A1111_HOST Deprecated alias for IMAGE_GENERATION_MCP_SD_WEBUI_HOST; logs a warning when used.
• IMAGE_GENERATION_MCP_A1111_MODEL Deprecated alias for IMAGE_GENERATION_MCP_SD_WEBUI_MODEL; logs a warning when used.
• IMAGE_GENERATION_MCP_READ_ONLY When true, write-tagged tools (image generation, transforms, uploads) are hidden from clients. Set false to enable them.
• IMAGE_GENERATION_MCP_SCRATCH_DIR Directory where generated images are saved. Created automatically on first use.
• IMAGE_GENERATION_MCP_OPENAI_API_KEY سري OpenAI API key. Enables the OpenAI provider (gpt-image-2, gpt-image-1.5, dall-e-3) when set.
• IMAGE_GENERATION_MCP_GOOGLE_API_KEY سري Google API key. Enables the Gemini provider (gemini-3.1-flash-image and others) when set. Get a key at https://aistudio.google.com/apikey.
• IMAGE_GENERATION_MCP_SD_WEBUI_HOST SD WebUI base URL (such as http://localhost:7860). Enables the SD WebUI provider when set. Compatible with AUTOMATIC1111, Forge, reForge, and Forge-neo.
• IMAGE_GENERATION_MCP_SD_WEBUI_MODEL SD WebUI checkpoint name, used for model-aware preset detection (SD 1.5 / SDXL / Lightning) and checkpoint override. Unset uses the instance's current model.
• IMAGE_GENERATION_MCP_DEFAULT_PROVIDER Provider used when no keyword triggers auto-selection: auto, openai, gemini, sd_webui, or placeholder. auto picks the first configured provider.
• IMAGE_GENERATION_MCP_TRANSFORM_CACHE_SIZE Maximum number of transformed image results (resize, crop, convert) kept in memory. Set 0 to disable caching.
• IMAGE_GENERATION_MCP_PAID_PROVIDERS Comma-separated provider names that cost money; generate_image asks for confirmation (client elicitation) before using them. An empty value falls back to this default; to disable confirmation, set a value that names no provider (such as none).
• IMAGE_GENERATION_MCP_STYLES_DIR Directory for style preset files (Markdown with YAML front matter). Created automatically if it does not exist.
• IMAGE_GENERATION_MCP_ALLOW_LOCAL_FILE_INPUT Allow reading input images from local filesystem paths. Off by default: only URLs and uploads are accepted.
• IMAGE_GENERATION_MCP_MAX_INPUT_IMAGE_BYTES Maximum accepted input image size in bytes.
• IMAGE_GENERATION_MCP_FETCH_TIMEOUT_S HTTP timeout in seconds when fetching remote image URLs (fetch_image and URL inputs).
• IMAGE_GENERATION_MCP_TRANSFER_TTL_DEFAULT_S Link lifetime in seconds when the caller requests no explicit TTL.
• IMAGE_GENERATION_MCP_TRANSFER_TTL_MAX_S Ceiling in seconds a caller-requested link TTL is clamped to.
• IMAGE_GENERATION_MCP_TRANSFER_GRACE_TTL_S Post-success grace window in seconds: a served token's TTL shrinks to this so a stalled transfer can retry within it.
• IMAGE_GENERATION_MCP_TRANSFER_LEASE_S Crashed-handler reclaim window in seconds for an in-flight reservation.
• IMAGE_GENERATION_MCP_TRANSFER_MAX_UPLOAD_BYTES Maximum size in bytes of a single upload.

claude mcp add image-generation-mcp-server -e 'IMAGE_GENERATION_MCP_BASE_URL=<IMAGE_GENERATION_MCP_BASE_URL>' -e 'IMAGE_GENERATION_MCP_BEARER_TOKEN=<your image_generation_mcp_bearer_token>' -e 'IMAGE_GENERATION_MCP_OIDC_CONFIG_URL=<IMAGE_GENERATION_MCP_OIDC_CONFIG_URL>' -e 'IMAGE_GENERATION_MCP_OIDC_CLIENT_ID=<IMAGE_GENERATION_MCP_OIDC_CLIENT_ID>' -e 'IMAGE_GENERATION_MCP_OIDC_CLIENT_SECRET=<your image_generation_mcp_oidc_client_secret>' -e 'IMAGE_GENERATION_MCP_OIDC_AUDIENCE=<IMAGE_GENERATION_MCP_OIDC_AUDIENCE>' -e 'IMAGE_GENERATION_MCP_OIDC_REQUIRED_SCOPES=openid' -e 'IMAGE_GENERATION_MCP_OIDC_ADVERTISED_SCOPES=openid offline_access' -e 'IMAGE_GENERATION_MCP_OIDC_JWT_SIGNING_KEY=<your image_generation_mcp_oidc_jwt_signing_key>' -e 'IMAGE_GENERATION_MCP_OIDC_VERIFY_ACCESS_TOKEN=false' -e 'IMAGE_GENERATION_MCP_KV_STORE_URL=file:///data/state' -e 'IMAGE_GENERATION_MCP_APP_DOMAIN=<IMAGE_GENERATION_MCP_APP_DOMAIN>' -e 'IMAGE_GENERATION_MCP_TOOLS_ALLOW=<IMAGE_GENERATION_MCP_TOOLS_ALLOW>' -e 'IMAGE_GENERATION_MCP_TOOLS_DENY=<IMAGE_GENERATION_MCP_TOOLS_DENY>' -e 'IMAGE_GENERATION_MCP_AUTH_MODE=<IMAGE_GENERATION_MCP_AUTH_MODE>' -e 'IMAGE_GENERATION_MCP_BEARER_TOKENS_FILE=<IMAGE_GENERATION_MCP_BEARER_TOKENS_FILE>' -e 'IMAGE_GENERATION_MCP_BEARER_DEFAULT_SUBJECT=bearer-anon' -e 'IMAGE_GENERATION_MCP_SERVER_NAME=<IMAGE_GENERATION_MCP_SERVER_NAME>' -e 'IMAGE_GENERATION_MCP_INSTRUCTIONS=<IMAGE_GENERATION_MCP_INSTRUCTIONS>' -e 'IMAGE_GENERATION_MCP_HTTP_PATH=/mcp' -e 'PUID=1000' -e 'PGID=1000' -e 'FASTMCP_LOG_LEVEL=INFO' -e 'FASTMCP_ENABLE_RICH_LOGGING=true' -e 'IMAGE_GENERATION_MCP_A1111_HOST=<IMAGE_GENERATION_MCP_A1111_HOST>' -e 'IMAGE_GENERATION_MCP_A1111_MODEL=<IMAGE_GENERATION_MCP_A1111_MODEL>' -e 'IMAGE_GENERATION_MCP_READ_ONLY=true' -e 'IMAGE_GENERATION_MCP_SCRATCH_DIR=~/.image-generation-mcp/images' -e 'IMAGE_GENERATION_MCP_OPENAI_API_KEY=<your image_generation_mcp_openai_api_key>' -e 'IMAGE_GENERATION_MCP_GOOGLE_API_KEY=<your image_generation_mcp_google_api_key>' -e 'IMAGE_GENERATION_MCP_SD_WEBUI_HOST=<IMAGE_GENERATION_MCP_SD_WEBUI_HOST>' -e 'IMAGE_GENERATION_MCP_SD_WEBUI_MODEL=<IMAGE_GENERATION_MCP_SD_WEBUI_MODEL>' -e 'IMAGE_GENERATION_MCP_DEFAULT_PROVIDER=auto' -e 'IMAGE_GENERATION_MCP_TRANSFORM_CACHE_SIZE=64' -e 'IMAGE_GENERATION_MCP_PAID_PROVIDERS=openai' -e 'IMAGE_GENERATION_MCP_STYLES_DIR=~/.image-generation-mcp/styles' -e 'IMAGE_GENERATION_MCP_ALLOW_LOCAL_FILE_INPUT=false' -e 'IMAGE_GENERATION_MCP_MAX_INPUT_IMAGE_BYTES=20971520' -e 'IMAGE_GENERATION_MCP_FETCH_TIMEOUT_S=30.0' -e 'IMAGE_GENERATION_MCP_TRANSFER_TTL_DEFAULT_S=3600.0' -e 'IMAGE_GENERATION_MCP_TRANSFER_TTL_MAX_S=86400.0' -e 'IMAGE_GENERATION_MCP_TRANSFER_GRACE_TTL_S=60.0' -e 'IMAGE_GENERATION_MCP_TRANSFER_LEASE_S=60.0' -e 'IMAGE_GENERATION_MCP_TRANSFER_MAX_UPLOAD_BYTES=104857600' -- docker run -i --rm ghcr.io/pvliesdonk/image-generation-mcp:v1.12.1 --port

{
    "mcpServers": {
        "image-generation-mcp-server": {
            "command": "docker",
            "args": [
                "run",
                "-i",
                "--rm",
                "ghcr.io/pvliesdonk/image-generation-mcp:v1.12.1",
                "--port"
            ],
            "env": {
                "IMAGE_GENERATION_MCP_BASE_URL": "<IMAGE_GENERATION_MCP_BASE_URL>",
                "IMAGE_GENERATION_MCP_BEARER_TOKEN": "<your image_generation_mcp_bearer_token>",
                "IMAGE_GENERATION_MCP_OIDC_CONFIG_URL": "<IMAGE_GENERATION_MCP_OIDC_CONFIG_URL>",
                "IMAGE_GENERATION_MCP_OIDC_CLIENT_ID": "<IMAGE_GENERATION_MCP_OIDC_CLIENT_ID>",
                "IMAGE_GENERATION_MCP_OIDC_CLIENT_SECRET": "<your image_generation_mcp_oidc_client_secret>",
                "IMAGE_GENERATION_MCP_OIDC_AUDIENCE": "<IMAGE_GENERATION_MCP_OIDC_AUDIENCE>",
                "IMAGE_GENERATION_MCP_OIDC_REQUIRED_SCOPES": "openid",
                "IMAGE_GENERATION_MCP_OIDC_ADVERTISED_SCOPES": "openid offline_access",
                "IMAGE_GENERATION_MCP_OIDC_JWT_SIGNING_KEY": "<your image_generation_mcp_oidc_jwt_signing_key>",
                "IMAGE_GENERATION_MCP_OIDC_VERIFY_ACCESS_TOKEN": "false",
                "IMAGE_GENERATION_MCP_KV_STORE_URL": "file:///data/state",
                "IMAGE_GENERATION_MCP_APP_DOMAIN": "<IMAGE_GENERATION_MCP_APP_DOMAIN>",
                "IMAGE_GENERATION_MCP_TOOLS_ALLOW": "<IMAGE_GENERATION_MCP_TOOLS_ALLOW>",
                "IMAGE_GENERATION_MCP_TOOLS_DENY": "<IMAGE_GENERATION_MCP_TOOLS_DENY>",
                "IMAGE_GENERATION_MCP_AUTH_MODE": "<IMAGE_GENERATION_MCP_AUTH_MODE>",
                "IMAGE_GENERATION_MCP_BEARER_TOKENS_FILE": "<IMAGE_GENERATION_MCP_BEARER_TOKENS_FILE>",
                "IMAGE_GENERATION_MCP_BEARER_DEFAULT_SUBJECT": "bearer-anon",
                "IMAGE_GENERATION_MCP_SERVER_NAME": "<IMAGE_GENERATION_MCP_SERVER_NAME>",
                "IMAGE_GENERATION_MCP_INSTRUCTIONS": "<IMAGE_GENERATION_MCP_INSTRUCTIONS>",
                "IMAGE_GENERATION_MCP_HTTP_PATH": "/mcp",
                "PUID": "1000",
                "PGID": "1000",
                "FASTMCP_LOG_LEVEL": "INFO",
                "FASTMCP_ENABLE_RICH_LOGGING": "true",
                "IMAGE_GENERATION_MCP_A1111_HOST": "<IMAGE_GENERATION_MCP_A1111_HOST>",
                "IMAGE_GENERATION_MCP_A1111_MODEL": "<IMAGE_GENERATION_MCP_A1111_MODEL>",
                "IMAGE_GENERATION_MCP_READ_ONLY": "true",
                "IMAGE_GENERATION_MCP_SCRATCH_DIR": "~/.image-generation-mcp/images",
                "IMAGE_GENERATION_MCP_OPENAI_API_KEY": "<your image_generation_mcp_openai_api_key>",
                "IMAGE_GENERATION_MCP_GOOGLE_API_KEY": "<your image_generation_mcp_google_api_key>",
                "IMAGE_GENERATION_MCP_SD_WEBUI_HOST": "<IMAGE_GENERATION_MCP_SD_WEBUI_HOST>",
                "IMAGE_GENERATION_MCP_SD_WEBUI_MODEL": "<IMAGE_GENERATION_MCP_SD_WEBUI_MODEL>",
                "IMAGE_GENERATION_MCP_DEFAULT_PROVIDER": "auto",
                "IMAGE_GENERATION_MCP_TRANSFORM_CACHE_SIZE": "64",
                "IMAGE_GENERATION_MCP_PAID_PROVIDERS": "openai",
                "IMAGE_GENERATION_MCP_STYLES_DIR": "~/.image-generation-mcp/styles",
                "IMAGE_GENERATION_MCP_ALLOW_LOCAL_FILE_INPUT": "false",
                "IMAGE_GENERATION_MCP_MAX_INPUT_IMAGE_BYTES": "20971520",
                "IMAGE_GENERATION_MCP_FETCH_TIMEOUT_S": "30.0",
                "IMAGE_GENERATION_MCP_TRANSFER_TTL_DEFAULT_S": "3600.0",
                "IMAGE_GENERATION_MCP_TRANSFER_TTL_MAX_S": "86400.0",
                "IMAGE_GENERATION_MCP_TRANSFER_GRACE_TTL_S": "60.0",
                "IMAGE_GENERATION_MCP_TRANSFER_LEASE_S": "60.0",
                "IMAGE_GENERATION_MCP_TRANSFER_MAX_UPLOAD_BYTES": "104857600"
            }
        }
    }
}

متغيرات البيئة

• IMAGE_GENERATION_MCP_BASE_URL Public base URL of the deployed server, e.g. `https://mcp.example.com`. Required for OIDC. Also the fallback source of the MCP Apps domain when `app_domain` is unset.
• IMAGE_GENERATION_MCP_BEARER_TOKEN سري Single shared bearer token; enables bearer auth unless `bearer_tokens_file` is set, which takes precedence.
• IMAGE_GENERATION_MCP_OIDC_CONFIG_URL OIDC discovery document URL, e.g. `https://auth.example.com/.well-known/openid-configuration`.
• IMAGE_GENERATION_MCP_OIDC_CLIENT_ID OIDC client identifier registered with the provider.
• IMAGE_GENERATION_MCP_OIDC_CLIENT_SECRET سري OIDC client secret registered with the provider.
• IMAGE_GENERATION_MCP_OIDC_AUDIENCE Expected `aud` claim; tokens issued for another audience are rejected.
• IMAGE_GENERATION_MCP_OIDC_REQUIRED_SCOPES Scopes a caller must present, space- or comma-separated. Defaults to `openid` in oidc-proxy mode.
• IMAGE_GENERATION_MCP_OIDC_ADVERTISED_SCOPES Scopes advertised to MCP clients in protected-resource metadata, space- or comma-separated. Overrides the default `openid offline_access`; `oidc_required_scopes` is always added on top. Set this when the registered client is not permitted `offline_access`, or to have clients request extra claim scopes (e.g. `groups`) without also requiring them in every token.
• IMAGE_GENERATION_MCP_OIDC_JWT_SIGNING_KEY سري Signing key for issued JWTs; used in oidc-proxy mode only. When unset, the key is derived deterministically from `oidc_client_secret`, so tokens survive a restart — but rotating that secret invalidates every issued token. Set this explicitly to decouple token validity from secret rotation. Generate with `openssl rand -hex 32`.
• IMAGE_GENERATION_MCP_OIDC_VERIFY_ACCESS_TOKEN Validate the access token instead of the id token.
• IMAGE_GENERATION_MCP_KV_STORE_URL Persistent-state backend URL shared by every pvl-core subsystem that needs state. `memory://` is in-process and lost on restart; `file:///path` persists on one server; `redis://`, `dynamodb://` and `mongodb://` each need their matching extra. When unset, defaults to `file:///data/state` (the volume family Docker images mount), or to `memory://` — with a warning — on a host where that directory is not usable.
• IMAGE_GENERATION_MCP_APP_DOMAIN MCP Apps iframe domain, used for CSP sandboxing. Overrides the host derived from `base_url`.
• IMAGE_GENERATION_MCP_TOOLS_ALLOW Comma-separated explicit tool names this instance exposes; every other tool is hidden from listings and cannot be invoked. Names matching no registered tool are inert. Mutually exclusive with `tools_deny`. Takes effect through `apply_tool_visibility`.
• IMAGE_GENERATION_MCP_TOOLS_DENY Comma-separated explicit tool names hidden from this instance (absent from listings, cannot be invoked). Names matching no registered tool are inert. Mutually exclusive with `tools_allow`. Takes effect through `apply_tool_visibility`.
• IMAGE_GENERATION_MCP_AUTH_MODE Explicit auth-mode override, accepting `remote` or `oidc-proxy` (case- and whitespace-insensitive). When unset the mode is auto-detected from which auth variables are set; the override exists because having all four OIDC variables set is ambiguous between those two modes. Other values are ignored with a warning.
• IMAGE_GENERATION_MCP_BEARER_TOKENS_FILE Path to a TOML file mapping bearer tokens to subjects; overrides the single-token `bearer_token` mode.
• IMAGE_GENERATION_MCP_BEARER_DEFAULT_SUBJECT Subject assigned to the single-token bearer mode; ignored when `bearer_tokens_file` is set, since mapped mode carries per-token subjects.
• IMAGE_GENERATION_MCP_SERVER_NAME Rename this server instance; defaults to the project name.
• IMAGE_GENERATION_MCP_INSTRUCTIONS Replaces the default MCP instructions text sent to clients.
• IMAGE_GENERATION_MCP_HTTP_PATH Mount path for the MCP endpoint.
• PUID Run the server process as this UID; the container entrypoint chowns writable paths to match.
• PGID Run the server process as this GID; pair with PUID to match the owner of a mounted volume.
• FASTMCP_LOG_LEVEL Log level for FastMCP internals and app loggers (DEBUG / INFO / WARNING / ERROR / CRITICAL). The -v CLI flag overrides to DEBUG.
• FASTMCP_ENABLE_RICH_LOGGING Set false for plain or structured JSON log output.
• IMAGE_GENERATION_MCP_A1111_HOST Deprecated alias for IMAGE_GENERATION_MCP_SD_WEBUI_HOST; logs a warning when used.
• IMAGE_GENERATION_MCP_A1111_MODEL Deprecated alias for IMAGE_GENERATION_MCP_SD_WEBUI_MODEL; logs a warning when used.
• IMAGE_GENERATION_MCP_READ_ONLY When true, write-tagged tools (image generation, transforms, uploads) are hidden from clients. Set false to enable them.
• IMAGE_GENERATION_MCP_SCRATCH_DIR Directory where generated images are saved. Created automatically on first use.
• IMAGE_GENERATION_MCP_OPENAI_API_KEY سري OpenAI API key. Enables the OpenAI provider (gpt-image-2, gpt-image-1.5, dall-e-3) when set.
• IMAGE_GENERATION_MCP_GOOGLE_API_KEY سري Google API key. Enables the Gemini provider (gemini-3.1-flash-image and others) when set. Get a key at https://aistudio.google.com/apikey.
• IMAGE_GENERATION_MCP_SD_WEBUI_HOST SD WebUI base URL (such as http://localhost:7860). Enables the SD WebUI provider when set. Compatible with AUTOMATIC1111, Forge, reForge, and Forge-neo.
• IMAGE_GENERATION_MCP_SD_WEBUI_MODEL SD WebUI checkpoint name, used for model-aware preset detection (SD 1.5 / SDXL / Lightning) and checkpoint override. Unset uses the instance's current model.
• IMAGE_GENERATION_MCP_DEFAULT_PROVIDER Provider used when no keyword triggers auto-selection: auto, openai, gemini, sd_webui, or placeholder. auto picks the first configured provider.
• IMAGE_GENERATION_MCP_TRANSFORM_CACHE_SIZE Maximum number of transformed image results (resize, crop, convert) kept in memory. Set 0 to disable caching.
• IMAGE_GENERATION_MCP_PAID_PROVIDERS Comma-separated provider names that cost money; generate_image asks for confirmation (client elicitation) before using them. An empty value falls back to this default; to disable confirmation, set a value that names no provider (such as none).
• IMAGE_GENERATION_MCP_STYLES_DIR Directory for style preset files (Markdown with YAML front matter). Created automatically if it does not exist.
• IMAGE_GENERATION_MCP_ALLOW_LOCAL_FILE_INPUT Allow reading input images from local filesystem paths. Off by default: only URLs and uploads are accepted.
• IMAGE_GENERATION_MCP_MAX_INPUT_IMAGE_BYTES Maximum accepted input image size in bytes.
• IMAGE_GENERATION_MCP_FETCH_TIMEOUT_S HTTP timeout in seconds when fetching remote image URLs (fetch_image and URL inputs).
• IMAGE_GENERATION_MCP_TRANSFER_TTL_DEFAULT_S Link lifetime in seconds when the caller requests no explicit TTL.
• IMAGE_GENERATION_MCP_TRANSFER_TTL_MAX_S Ceiling in seconds a caller-requested link TTL is clamped to.
• IMAGE_GENERATION_MCP_TRANSFER_GRACE_TTL_S Post-success grace window in seconds: a served token's TTL shrinks to this so a stalled transfer can retry within it.
• IMAGE_GENERATION_MCP_TRANSFER_LEASE_S Crashed-handler reclaim window in seconds for an in-flight reservation.
• IMAGE_GENERATION_MCP_TRANSFER_MAX_UPLOAD_BYTES Maximum size in bytes of a single upload.