Retro Diffusion Pixel Art vs Web Validator by DigestSEO
A side-by-side look at the Retro Diffusion Pixel Art and Web Validator by DigestSEO MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
Verdict: choose Retro Diffusion Pixel Art for security work over a hosted endpoint; choose Web Validator by DigestSEO for security as a local process. You can also run both side by side in one mcpServers block.
Which MCP server should you choose?
Choose Retro Diffusion Pixel Art when
- You need dedicated capabilities in the Security domain.
- You prefer a remote HTTP/SSE transport.
- You want tools like
authenticate, logout, create_user_style.
Choose Web Validator by DigestSEO when
- You need dedicated capabilities in the Security domain.
- You prefer a local stdio subprocess transport.
- You have the keys it needs:
PUPPETEER_CACHE_DIR. - You want tools like
html.local, html.url, css.local.
Feature & specification comparison
Rows where the two servers differ are marked.
| Spec | ||
|---|---|---|
| Category | Security | Security |
| Quality signal | 57/100 · Good | 59/100 · Good |
| Install command | Confirmed | Confirmed |
| Transport | Remote HTTP/SSE | Local subprocess (stdio) |
| Auth | Not declared | Not declared |
| Pricing | Not declared | Not declared |
| Required env vars | None listed | PUPPETEER_CACHE_DIR |
| Verified owner | Community listing | Community listing |
| GitHub stars | 7 | 9 |
| Directory activity | 0 views 0 installs 0 upvotes | 3 views 0 installs 0 upvotes |
| Tools | 33 | 8 |
| Full listing | View Retro Diffusion Pixel Art | View Web Validator by DigestSEO |
Tools & capabilities
Retro Diffusion Pixel Art tools 33
authenticateAuthenticate this MCP session with a RetroDiffusion public API key.logoutClear the authenticated RetroDiffusion API key for this MCP session.create_user_styleCreate a user style from the public RD Pro template using /v2/styles. Use `style_reference_images` and `style_reference_caption` for style-level references. These are baked into the custom style and are not the same as per-inference `reference_images`.update_user_styleUpdate a public RD Pro user style using /v2/styles/{style_id}. Use `style_reference_images` and `style_reference_caption` for style-level references. These are baked into the custom style and are not the same as per-inference `reference_images`.delete_user_styleDelete a user style using /v2/styles/{style_id}. style_id can be either internal id or prompt_style/public_id.list_available_stylesList publicly available styles from /v2/styles/selector. Use this to discover valid prompt_style values plus style metadata such as require_input_image and supports_reference_images.list_available_modelsReturn unique public model identifiers available in /v2/styles/selector.get_style_usageExplain how to use a public prompt_style from the RetroDiffusion API. Use this before create_inference if you are unsure whether a style expects `input_image`, supports per-inference `reference_images`, or whether you meant style-level `style_reference_images`.get_balanceGet credits/balance using the public /v2/inferences/credits endpoint.estimate_inference_costEstimate generation cost using the public /v2/inferences endpoint with check_cost=true. Use `input_image` for the main source image, `reference_images` for extra per-inference guidance, and `style_reference_images` only on create_user_style/update_user_style.create_inferenceGenerate images using the public /v2/inferences endpoint. For the highest quality prefer RD Pro styles (rd_pro__*); they support reference_images for character/style consistency, and most go as small as 12x12 px (check list_available_styles for each style's limits) — a small target size is never a reason to switch to a cheaper model family. Style ids are opaque strings with no uniform format (some RD Fast styles appear as "default:rd_flux"); take them verbatim from the catalog and never infer capabilities from an id's prefix. For animation styles prefer start_inference_job + get_inference_job instead — animations are long-running, and a failed animation is worth one retry with identical parameters (failures auto-refund). Field-tested workflow rules: N distinct items = N individually usable images (separate calls or num_images=N), never one sheet/grid image unless a sheet IS the deliverable. Variants of ONE image (seasons, day/night, palettes) = generate the base once, then derive each variant with the image_edit tool ("... keep the exact same composition") — independent generations of the "same" scene come out unrelated. Converting an existing image INTO pixel art is rd_pro__pixelate with input_image (16-256 px output, batch<=16); reference_images-based generation re-imagines rather than converts. To animate an image you already have, use rd_advanced_animation__* with input_image (fixed-format rd_animation__* styles generate their own subject from the prompt instead). To get the other directional views of a sprite you already have, use rd_advanced_animation__rotate with input_image (same 8-direction layout as rd_animation__8_dir_rotation). Use `input_image` for the main source image, `reference_images` for extra per-inference guidance, and `style_reference_images` only on create_user_style/update_user_style. The response excludes raw base64 image payloads to keep MCP outputs compact.list_edit_toolsList the enabled canvas edit tools from /v2/edit/tools with their fields, costs, and limits. Edit tools are the recommended way to post-process generated pixel art: background removal, palette conversion, color reduction, pixel correction, rotation, inpainting, outpainting, seam tiling, and prompt-driven edits.- +21 more on the listing page
Web Validator by DigestSEO tools 8
html.localValidate a local HTML or XHTML file.html.urlValidate the markup returned by a public URL.css.localValidate a local CSS file.seo.metadataAudit titles, descriptions, canonical tags, robots noindex directives, headings, viewport metadata, image alt attributes, and Open Graph metadata.links.brokenCheck links extracted from supplied HTML.schema.markupParse JSON-LD blocks and report JSON syntax errors.report.validationCombine HTML/XHTML, optional CSS, SEO, JSON-LD, and bounded link checks in a Markdown report.screenshot.captureCapture desktop, tablet, mobile, or custom viewport screenshots.
Ready-to-paste client configs
Paste either block (or both) into your client config, e.g. claude_desktop_config.json or ~/.cursor/mcp.json. We only show a config when the install command is confirmed.
Retro Diffusion Pixel Art
{
"mcpServers": {
"retro-diffusion-pixel-art": {
"url": "https://mcp.retrodiffusion.ai/mcp"
}
}
}
Web Validator by DigestSEO
{
"mcpServers": {
"web-validator-by-digestseo": {
"command": "npx",
"args": [
"-y",
"mcp-web-validator"
],
"env": {
"PUPPETEER_CACHE_DIR": "YOUR_PUPPETEER_CACHE_DIR_HERE"
}
}
}
}
Frequently asked questions
Retro Diffusion Pixel Art is categorized under Security and uses a remote HTTP/SSE transport. Web Validator by DigestSEO belongs to Security and uses a local stdio subprocess. Pick Retro Diffusion Pixel Art for security work and Web Validator by DigestSEO for security.
Copy the mcpServers block from the config section on this page into your client's config (for example claude_desktop_config.json or ~/.cursor/mcp.json), then fully restart the client.
Retro Diffusion Pixel Art has no declared pricing — check the project's own site. Web Validator by DigestSEO has no declared pricing — check the project's own site. If a server needs environment variables such as API keys, define them under the env key in your client's MCP config.
Yes. MCP clients support multiple servers: add retro-diffusion-pixel-art and web-validator-by-digestseo as separate keys in the same mcpServers object, and your assistant will call tools from either one.
On AllMCPs, Retro Diffusion Pixel Art has a quality signal of 57/100 (Good) with 0 views, 0 installs and 7 GitHub stars. Web Validator by DigestSEO has 59/100 (Good) with 3 views, 0 installs and 9 GitHub stars.