Schema | forge-mcp

forge-mcp

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Server Configuration

Describes the environment variables required to run the server.

Name	Required	Description	Default
`FORGE_URL`	No	Base URL of the Forge/A1111 --api server	http://127.0.0.1:7860
`FORGE_MCP_TOKEN`	No	If set, require Authorization: Bearer <token> on the HTTP transport
`FORGE_GEN_TIMEOUT`	No	Seconds to wait on Forge (covers a cold model-load + generation)	180
`FORGE_DEFAULT_MODEL`	No	Checkpoint used when a request doesn't name one	DreamShaperXL_Turbo_SFW
`FORGE_PREVIEW_MAX_PX`	No	Longest edge of the inline JPEG preview	768

Instructions

Guidance the server publishes about itself, which clients place ahead of the tool catalog so the model reads it before choosing anything.

This server publishes no instructions, or was last inspected before Glama recorded them.

Capabilities

Features and capabilities supported by this server

Protocol revision2025-11-25

Capability	Details
`tools`	{ "listChanged": false }
`prompts`	{ "listChanged": false }
`resources`	{ "subscribe": false, "listChanged": false }

Tools

Functions exposed to the LLM to take actions

Name Description

Name	Description
generate_imageA	Generate an image (txt2img) on the local SDXL box. Returns an inline preview + (in the text block) the exact params and the full-res PNG base64 to save in your repo. Args: prompt: the positive prompt, sent VERBATIM (attention weights like `(grey eyes:1.3)` work). shot: aspect/framing shortcut — `portrait` (832x1216, default, face-focus), `full-figure`, `establishing` (1216x832 scene), `square` (1024). Raw width/height override this. model: checkpoint (default DreamShaperXL_Turbo_SFW). Switched only if different from loaded. seed: -1 = random (the resolved seed is returned so you can lock it); set it to reproduce. steps: default 8 (Turbo). cfg: default 2 (Turbo). sampler/scheduler: DPM++ SDE / Karras (Turbo). negative: extra negative text (combined with the profile; the NSFW block is always appended). negative_profile: named profile(s), e.g. "sfw-strict" (default), "mature", "candid+sfw-strict". style: optional positive preset, e.g. "photoreal". width/height: raw size, must be a VRAM-safe bucket (832x1216, 1216x832, 1024x1024). include_full: include the full-res PNG base64 in the result (default True; False = preview only, lighter for rapid iteration — re-run with the echoed seed to get the full-res of a keeper).
edit_imageA	Edit/vary an image (img2img). ⚠ HOLISTIC — re-derives the WHOLE frame from the init, so use it for variants that should re-settle (wardrobe, pose, lighting, hair-mass), NOT single-feature fixes (those belong in a PSD — pushing just the eyes also moves skin/age/expression). For character consistency, pass the character's canonical keeper as `init_image` and its seed/prompt, then change only the delta. `Args: init_image: the source image as base64 (your client reads the keeper PNG from the repo and passes it; also load its sidecar params so this render builds on the keeper's recipe). denoising_strength: 0.3-0.45 = keep the subject, fix details; 0.5-0.65 = restyle. Default 0.45. (all other args: see generate_image.)`
list_modelsA	List the image models (checkpoints) available on the Forge box, and which one is loaded.

generate_imageA

Generate an image (txt2img) on the local SDXL box. Returns an inline preview + (in the text block) the exact params and the full-res PNG base64 to save in your repo.

    Args:
        prompt: the positive prompt, sent VERBATIM (attention weights like `(grey eyes:1.3)` work).
        shot: aspect/framing shortcut — `portrait` (832x1216, default, face-focus), `full-figure`,
            `establishing` (1216x832 scene), `square` (1024). Raw width/height override this.
        model: checkpoint (default DreamShaperXL_Turbo_SFW). Switched only if different from loaded.
        seed: -1 = random (the resolved seed is returned so you can lock it); set it to reproduce.
        steps: default 8 (Turbo). cfg: default 2 (Turbo). sampler/scheduler: DPM++ SDE / Karras (Turbo).
        negative: extra negative text (combined with the profile; the NSFW block is always appended).
        negative_profile: named profile(s), e.g. "sfw-strict" (default), "mature", "candid+sfw-strict".
        style: optional positive preset, e.g. "photoreal".
        width/height: raw size, must be a VRAM-safe bucket (832x1216, 1216x832, 1024x1024).
        include_full: include the full-res PNG base64 in the result (default True; False = preview only,
            lighter for rapid iteration — re-run with the echoed seed to get the full-res of a keeper).

edit_imageA

Edit/vary an image (img2img). ⚠ HOLISTIC — re-derives the WHOLE frame from the init, so use it for variants that should re-settle (wardrobe, pose, lighting, hair-mass), NOT single-feature fixes (those belong in a PSD — pushing just the eyes also moves skin/age/expression). For character consistency, pass the character's canonical keeper as init_image and its seed/prompt, then change only the delta.

    Args:
        init_image: the source image as base64 (your client reads the keeper PNG from the repo and passes
            it; also load its sidecar params so this render builds on the keeper's recipe).
        denoising_strength: 0.3-0.45 = keep the subject, fix details; 0.5-0.65 = restyle. Default 0.45.
        (all other args: see generate_image.)

list_modelsA

List the image models (checkpoints) available on the Forge box, and which one is loaded.

Prompts

Interactive templates invoked by user choice

Name	Description
No prompts

Resources

Contextual data attached and managed by the client

Name	Description
No resources

Deploy Server

One endpoint for every MCP toolRayrun runs every MCP server behind one URL and holds the credentials. Each call is decided per client, tool, and argument, then recorded.ray.runAd

TDQS

A4.2/5.0

Scored 2026-10-03 04:30 across 3 tools

Disambiguation5/5

generate_image (txt2img), edit_image (img2img), and list_models each have a clearly distinct purpose, and the descriptions explicitly explain the txt2img vs img2img boundary (including when to use PSD instead). No meaningful overlap remains.

Naming Consistency5/5

All three tools follow a clean verb_noun snake_case pattern: generate_image, edit_image, list_models. Fully predictable and consistent.

Tool Count4/5

Three tools is a coherent, well-scoped set for a focused SDXL render server, but it sits at the thin end—common needs like upscaling or inpainting have no dedicated tool.

Completeness4/5

Core lifecycle (text-to-image, image-to-image, model discovery) is covered and the model arg handles checkpoint switching. Minor gaps like upscaling/detail-fix or masked inpainting are acknowledged as out of scope but would otherwise cause dead ends.

Maintenance

ActivityMaintained

ResponsivenessNo issues

Resources

GitHub Repository

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