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App-Kit

io.github.app-kit-dev/mcp · v0.1.3

SEO audit (400 checks), text readability and grammar check, PDF to images, image conversion.

Connect Remote server

Terminal
claude mcp add --transport http mcp https://mcp.app-kit.dev/mcp --header "Authorization: Bearer <YOUR_API_KEY>"
~/.cursor/mcp.json
{
  "mcpServers": {
    "mcp": {
      "url": "https://mcp.app-kit.dev/mcp",
      "headers": {
        "Authorization": "Bearer <YOUR_API_KEY>"
      }
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "mcp": {
      "type": "http",
      "url": "https://mcp.app-kit.dev/mcp",
      "headers": {
        "Authorization": "Bearer <YOUR_API_KEY>"
      }
    }
  }
}
Claude Desktop
Settings > Connectors > Add custom connector
URL: https://mcp.app-kit.dev/mcp

Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.

Tools 10 found in our last check

  • text_check

    Check a text: metrics (filler words, spam, keyword stuffing), readability, stop phrases, grammar. Input: text up to 20000 characters, lang (language of the text) ru or en. Returns passed (blocking thresholds), metrics by layer, verdicts (blocking=false means a recommendation), t…

  • seo_audit_fast

    Quick SEO audit of a public website (up to 10 pages): score 0-100 by check group, failed checks, top 5 losses. The site root is audited: URL path and query are dropped (https://example.com/page?x=1 -> https://example.com/). Waits up to 60 s for the result, sending progress. If n…

  • seo_audit_status

    Status and result of an SEO audit by the handle from seo_audit_fast. Does not consume quota. While status=running, call again after poll_after_s seconds. A handle is valid for 60 min and only for the caller who started the audit.

  • pdf_to_images

    Convert an existing PDF to images (one file per page): format png/jpeg/webp, dpi 72-300, first_page/last_page. PDF up to 20 MB and up to 20 pages. Input: exactly one of source_url (public URL, the server downloads it), upload_id (create_upload, then PUT) or data_base64 (up to 51…

  • images_to_pdf

    Combine existing images into one PDF (one image per page), page_size A4/Letter or the image size. Input: source_urls[] or upload_ids[], up to 20 files, each up to 20 MB. Output: download links (resource_link, valid for 10 min; deleted once all files of the job are downloaded) an…

  • image_convert

    Convert an existing image to another format: target_format png/jpeg/webp/bmp/tiff/gif, quality 1-100, max_dim (downscale the long side). File up to 20 MB. For avif and maximum compression use image_compress. Input: exactly one of source_url (public URL, the server downloads it),…

  • conversion_status

    Status and result of a conversion by the handle from pdf_to_images / images_to_pdf / image_convert. Does not consume quota. While status=running, call again after poll_after_s seconds. A handle is valid for 1 hour and only for the caller who started the conversion.

  • image_compress

    Compress an existing image to WebP or AVIF: quality 1-100, width/height (downscale), preset (photo/picture/drawing/icon/text), lossless. Returns a result link (valid up to 5 min), original and new size, compression ratio. File up to 20 MB. Input: exactly one of source_url (publi…

  • create_upload

    Create a one-time upload link for a local file (for clients with local file access, e.g. Claude Code, Cursor). Returns upload_id, put_url and a curl command: upload the file with a single PUT (up to 20 MB, within 10 min), then pass upload_id to a file tool. One upload_id serves…

  • quota_status

    Show the current access tier and the remaining calls for each tool. Tiers: L0 anonymous (shared per platform for Claude and ChatGPT), L1 personal token, L2 App-Kit account (OAuth). Does not consume quota.

Headers

NameDescription
Authorization
Optional, secret
Optional. Free token from https://app-kit.dev/mcp for higher limits, as 'Bearer mcpf_...'.

Details

Endpointhttps://mcp.app-kit.dev/mcp (Streamable HTTP)
First published5 Oct 2026
Last updated5 Oct 2026
Registry nameio.github.app-kit-dev/mcp

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