Fast HTML MCP server

Read from the package source without running it. The installed server may list more.

• check_consistency

  Audit document for stale cross-section references and dependency violations

• edit_html_range

  Replace a range of lines in an HTML file with new content (most token-efficient edit — send only the changed lines)

• edit_section

  Replace a rendered section in an HTML file with a new component. Pages rendered with render_page embed section markers. Use list_sections to discover available indices. Provide component+props to re-render, or html for raw replacement.

• format_html

  Format/beautify an existing HTML file

• get_component_schema

  Get component schema with available props

• get_template_schema

  Get template metadata including available variables with defaults

• insert_sectionwrite action

  Insert a new component section at a specific index, pushing existing sections forward. Uses the same section marker system as render_page. Auto-renumbers all subsequent sections.

• list_components

  List available interactive components (optionally filter by category)

• list_sections

  List all component sections in an HTML file that was built with render_page. Returns section indices, component types, and sizes.

• list_templates

  List available template shells (optionally filter by category)

• patch_htmlwrite action

  Patch HTML element(s) by CSS selector

• preview_html

  Preview rendered HTML string without writing

• propagate_edit

  Propagate an entity edit through the dependency graph, updating all transitively affected sections

• read_html

  Read/analyze existing HTML file. Use mode='text' for token-efficient plain text extraction with offset/limit progressive reading.

• register_template

  Register a custom template at runtime for immediate use with render_page/preview_html

• render_page

  Assemble page from structured components

• set_attribute

  Set attribute on element(s) by CSS selector

• write_html_filewrite action

  Write content as formatted HTML file

• write_raw_htmlwrite action

  Write raw HTML content directly to file

• Code scan115 source files scanned25/25
• –Live reliabilityno gateway calls yet and no remote to proben/a
• –Tool poisoningtools not inspected (local package is not executed); not countedn/a
• Auth qualitylocal package, no credentials required12/15
• Maintenancelast push 103 days ago8/15
• Maintainer identityregistry namespace matches repository owner; GitHub account older than a year9/10

Safety score

83/100

higher than 65% of 48,255 servers

Tools

19

the typical server has 7

Tools that change things

21%

typical: 0%. Fewer write tools means less an agent can break

GitHub stars

7

more than 86% of 28,688 servers

Downloads a week

39

more than 30% of 12,191 servers with a package

Fast HTML MCP: common questions

Is Fast HTML MCP server safe?

Mostly: it is graded B (83/100). Read the Fast HTML MCP safety report

How do I install Fast HTML MCP?

It runs on your machine. Copy the Claude Code, Cursor, VS Code or Claude Desktop config from the install section.

Does Fast HTML MCP need an API key?

Not as far as the registry entry and our scan can tell: no credentials are declared or required.

Is Fast HTML MCP maintained?

The last commit was 141 days ago (2026-06-16). The latest release is v0.1.2.

How does Fast HTML MCP compare with other MCP servers?

safety score 83/100 (higher than 65% of 48,255 servers); tools 19 (the typical server has 7); tools that change things 21% (typical: 0%. Fewer write tools means less an agent can break). Full comparison.