Image Generation MCP Server

by pvliesdonk·io.github.pvliesdonk/image-generation-mcp·v1.12.1

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MCP server for AI image generation via OpenAI, Stable Diffusion (SD WebUI), or placeholders.

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claude mcp add image-generation-mcp -- uvx image-generation-mcp

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Image Generation MCP Server: common questions

Is Image Generation MCP Server safe?: Not known yet: the safety scan has not run. New listings are scanned within a few days.
How do I install Image Generation MCP Server?: It runs on your machine. Copy the Claude Code, Claude Desktop or Cursor config from the install section.
Does Image Generation MCP Server need an API key?: Yes. The registry entry asks for IMAGE_GENERATION_MCP_OPENAI_API_KEY, IMAGE_GENERATION_MCP_GOOGLE_API_KEY, IMAGE_GENERATION_MCP_BEARER_TOKEN, IMAGE_GENERATION_MCP_OIDC_CLIENT_SECRET and 1 more.
Is Image Generation MCP Server maintained?: The latest release is v1.12.1.
What can I use instead of Image Generation MCP Server?: Servers from other publishers that do the same job: Imagine MCP server, Image MCP server and Maginary MCP server. Compare all Image Generation MCP Server alternatives.

Alternatives to Image Generation MCP Server

Same job from other publishers: the closest match first, then the best rated.

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Run it through the gateway

Local package. It runs on your machine, not through the gateway.

Rating: —
Safety grade: Pending
Stars: –
Downloads/wk: –
Price: Free
Licence: —
Transport: Local · mixed
Version: 1.12.1
Category: AI and agents
Last release: —

Credentials it needs

IMAGE_GENERATION_MCP_KV_STORE_URLPersistent-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_ALLOWComma-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_DENYComma-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_NAMERename this server instance; defaults to the project name.
IMAGE_GENERATION_MCP_INSTRUCTIONSReplaces the default MCP instructions text sent to clients.
FASTMCP_LOG_LEVELLog level for FastMCP internals and app loggers (DEBUG / INFO / WARNING / ERROR / CRITICAL). The -v CLI flag overrides to DEBUG.
FASTMCP_ENABLE_RICH_LOGGINGSet false for plain or structured JSON log output.
IMAGE_GENERATION_MCP_A1111_HOSTDeprecated alias for IMAGE_GENERATION_MCP_SD_WEBUI_HOST; logs a warning when used.
IMAGE_GENERATION_MCP_A1111_MODELDeprecated alias for IMAGE_GENERATION_MCP_SD_WEBUI_MODEL; logs a warning when used.
IMAGE_GENERATION_MCP_READ_ONLYWhen true, write-tagged tools (image generation, transforms, uploads) are hidden from clients. Set false to enable them.
IMAGE_GENERATION_MCP_SCRATCH_DIRDirectory where generated images are saved. Created automatically on first use.
IMAGE_GENERATION_MCP_OPENAI_API_KEYsecretOpenAI API key. Enables the OpenAI provider (gpt-image-2, gpt-image-1.5, dall-e-3) when set.
IMAGE_GENERATION_MCP_GOOGLE_API_KEYsecretGoogle 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_HOSTSD 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_MODELSD 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_PROVIDERProvider 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_SIZEMaximum number of transformed image results (resize, crop, convert) kept in memory. Set 0 to disable caching.
IMAGE_GENERATION_MCP_PAID_PROVIDERSComma-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_DIRDirectory for style preset files (Markdown with YAML front matter). Created automatically if it does not exist.
IMAGE_GENERATION_MCP_ALLOW_LOCAL_FILE_INPUTAllow reading input images from local filesystem paths. Off by default: only URLs and uploads are accepted.
IMAGE_GENERATION_MCP_MAX_INPUT_IMAGE_BYTESMaximum accepted input image size in bytes.
IMAGE_GENERATION_MCP_FETCH_TIMEOUT_SHTTP timeout in seconds when fetching remote image URLs (fetch_image and URL inputs).
IMAGE_GENERATION_MCP_TRANSFER_TTL_DEFAULT_SLink lifetime in seconds when the caller requests no explicit TTL.
IMAGE_GENERATION_MCP_TRANSFER_TTL_MAX_SCeiling in seconds a caller-requested link TTL is clamped to.
IMAGE_GENERATION_MCP_TRANSFER_GRACE_TTL_SPost-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_SCrashed-handler reclaim window in seconds for an in-flight reservation.
IMAGE_GENERATION_MCP_TRANSFER_MAX_UPLOAD_BYTESMaximum size in bytes of a single upload.
IMAGE_GENERATION_MCP_BASE_URLPublic 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_TOKENsecretSingle shared bearer token; enables bearer auth unless `bearer_tokens_file` is set, which takes precedence.
IMAGE_GENERATION_MCP_OIDC_CONFIG_URLOIDC discovery document URL, e.g. `https://auth.example.com/.well-known/openid-configuration`.
IMAGE_GENERATION_MCP_OIDC_CLIENT_IDOIDC client identifier registered with the provider.
IMAGE_GENERATION_MCP_OIDC_CLIENT_SECRETsecretOIDC client secret registered with the provider.
IMAGE_GENERATION_MCP_OIDC_AUDIENCEExpected `aud` claim; tokens issued for another audience are rejected.
IMAGE_GENERATION_MCP_OIDC_REQUIRED_SCOPESScopes a caller must present, space- or comma-separated. Defaults to `openid` in oidc-proxy mode.
IMAGE_GENERATION_MCP_OIDC_ADVERTISED_SCOPESScopes 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_KEYsecretSigning 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_TOKENValidate the access token instead of the id token.
IMAGE_GENERATION_MCP_KV_STORE_URLPersistent-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_DOMAINMCP Apps iframe domain, used for CSP sandboxing. Overrides the host derived from `base_url`.
IMAGE_GENERATION_MCP_TOOLS_ALLOWComma-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_DENYComma-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_MODEExplicit 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_FILEPath to a TOML file mapping bearer tokens to subjects; overrides the single-token `bearer_token` mode.
IMAGE_GENERATION_MCP_BEARER_DEFAULT_SUBJECTSubject 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_NAMERename this server instance; defaults to the project name.
IMAGE_GENERATION_MCP_INSTRUCTIONSReplaces the default MCP instructions text sent to clients.
IMAGE_GENERATION_MCP_HTTP_PATHMount path for the MCP endpoint.
PUIDRun the server process as this UID; the container entrypoint chowns writable paths to match.
PGIDRun the server process as this GID; pair with PUID to match the owner of a mounted volume.
FASTMCP_LOG_LEVELLog level for FastMCP internals and app loggers (DEBUG / INFO / WARNING / ERROR / CRITICAL). The -v CLI flag overrides to DEBUG.
FASTMCP_ENABLE_RICH_LOGGINGSet false for plain or structured JSON log output.
IMAGE_GENERATION_MCP_A1111_HOSTDeprecated alias for IMAGE_GENERATION_MCP_SD_WEBUI_HOST; logs a warning when used.
IMAGE_GENERATION_MCP_A1111_MODELDeprecated alias for IMAGE_GENERATION_MCP_SD_WEBUI_MODEL; logs a warning when used.
IMAGE_GENERATION_MCP_READ_ONLYWhen true, write-tagged tools (image generation, transforms, uploads) are hidden from clients. Set false to enable them.
IMAGE_GENERATION_MCP_SCRATCH_DIRDirectory where generated images are saved. Created automatically on first use.
IMAGE_GENERATION_MCP_OPENAI_API_KEYsecretOpenAI API key. Enables the OpenAI provider (gpt-image-2, gpt-image-1.5, dall-e-3) when set.
IMAGE_GENERATION_MCP_GOOGLE_API_KEYsecretGoogle 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_HOSTSD 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_MODELSD 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_PROVIDERProvider 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_SIZEMaximum number of transformed image results (resize, crop, convert) kept in memory. Set 0 to disable caching.
IMAGE_GENERATION_MCP_PAID_PROVIDERSComma-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_DIRDirectory for style preset files (Markdown with YAML front matter). Created automatically if it does not exist.
IMAGE_GENERATION_MCP_ALLOW_LOCAL_FILE_INPUTAllow reading input images from local filesystem paths. Off by default: only URLs and uploads are accepted.
IMAGE_GENERATION_MCP_MAX_INPUT_IMAGE_BYTESMaximum accepted input image size in bytes.
IMAGE_GENERATION_MCP_FETCH_TIMEOUT_SHTTP timeout in seconds when fetching remote image URLs (fetch_image and URL inputs).
IMAGE_GENERATION_MCP_TRANSFER_TTL_DEFAULT_SLink lifetime in seconds when the caller requests no explicit TTL.
IMAGE_GENERATION_MCP_TRANSFER_TTL_MAX_SCeiling in seconds a caller-requested link TTL is clamped to.
IMAGE_GENERATION_MCP_TRANSFER_GRACE_TTL_SPost-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_SCrashed-handler reclaim window in seconds for an in-flight reservation.
IMAGE_GENERATION_MCP_TRANSFER_MAX_UPLOAD_BYTESMaximum size in bytes of a single upload.

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