Talk to Your Accessibility Data
Connect Rocket Validator to Claude and other AI assistants through our MCP server. Ask questions in natural language and get instant insights about your site's accessibility and HTML compliance.
Ask Questions Like You Would Ask a Colleague
No complex queries. No API documentation. Just natural conversations.
Looking at your reports from the last 30 days, staging.acme-corp.com needs the most attention:
- 847 accessibility issues across 124 pages
- Critical issues include missing alt text on 156 images
- 42 form fields without proper labels
- Color contrast failures on the checkout flow
- Non-standard HTML syntax was found
Would you like me to break down the most impactful fixes you could make?
Here are 3 quick wins that will fix 40% of your issues:
- Add alt attributes to product images - this single fix addresses 156 violations
-
Associate labels with form inputs
using the
forattribute - fixes 42 issues - Increase text contrast on `.btn-secondary` class from 3.2:1 to 4.5:1
Built for How Teams Actually Work
For Managers
Sarah runs the QA team at a digital agency. Every Monday, she used to spend 2 hours pulling data from multiple reports to prepare the weekly accessibility summary for stakeholders.
Now she just asks:
In seconds, she has a complete picture — ready to share with the team or export for the executive report.
For Developers
Marcus is a frontend developer who just inherited a legacy codebase. The site has thousands of pages and he needs to prioritize what to fix first.
Instead of clicking through endless report pages, he asks:
He gets a prioritized action plan that turns a daunting task into a clear roadmap.
For Marketing
Peter works in marketing and wants to highlight how their company leads on accessibility compared to competitors. Gathering competitive data manually would take days.
Now he just asks:
He gets a competitive analysis showing they have 60% fewer critical issues — a compelling story for the next investor pitch.
For QA Engineers
Elena leads responsive QA at a web agency. She needs to ensure sites are accessible across all devices — but manually comparing desktop and mobile reports is tedious.
Now she simply asks:
In minutes, she discovers that mobile has 4 extra critical issues — buttons without labels and images missing alt text that only appear on smaller screens.
Everything You Need, One Question Away
The MCP server gives AI assistants direct access to your Rocket Validator data.
📊 Browse Reports
List, filter, and search through your validation reports. Find reports by URL, tag, date, or issue count.
🔍 Analyze Issues
Dive deep into HTML and accessibility issues. See which problems affect the most pages and get fixing guidance.
📄 Inspect Pages
Check specific web pages within your reports. See all issues affecting a page and their exact locations.
📚 Get Guidance
Access built-in HTML and accessibility guides. Understand why an issue matters and how to fix it properly.
👥 Team Support
Works with guest accounts. Choose to see data from your own reports or from your team.
🚀 Create Reports
Ask the AI to run new validation reports on demand and recheck specific pages.
Set Up in 2 Minutes
- Add MCP to Claude
- Connect
- Start chatting
1. Add MCP to Claude
In Claude.ai or Claude Desktop:
- Go to Settings → Connectors
- Click the Add custom connector button
-
Enter the name Rocket Validator
and the URL:
https://rocketvalidator.com/mcp/server
2. Connect
When you start a conversation using the Rocket Validator connector, Claude will ask you to authorize the connection. Log in to Rocket Validator and grant access — this only needs to be done once.
3. Start Chatting
Ask anything about your accessibility reports and get instant answers. No documentation needed — just talk naturally.
Start a Conversation with Your Accessibility Data
Talk naturally with your validation reports. No complex queries needed. Here are some conversation starters:
What's the most urgent issue to fix on our web site?
Is our client site's accessibility improving or getting worse?
Explain what the 'landmark-one-main' accessibility rule means
Compare HTML errors between our staging and production sites
What's the most common issue across all my sites?
Give me the simplest HTML issue to fix and a detailed guide for our junior developer
Run a new accessibility report on https://example.com
Recheck the homepage now that I've fixed those alt text issues
Ready to try it?
Connect your Rocket Validator account to Claude and start talking to your accessibility data.
Tools Included in the MCP Server
When you connect the Rocket Validator MCP to Claude, it gets access to these specialized tools to help you work with your validation data.
Reports
List, filter, search, and create validation reports. Find reports by URL, tag, date, or issue count. With write permissions, Claude can also create new reports on demand.
- Show me all reports from the last week
- Which reports have the most accessibility errors?
- Create a new report for https://example.com with 50 pages
Web Pages
Browse and inspect individual web pages within your reports. See all issues affecting a specific page, filter by issue types, and recheck pages after fixing issues (with write permissions).
- Show me the pages with the most HTML errors in my latest report
- Which pages are affected by the alt text issue?
- Recheck the pricing page
Common HTML Issues
See HTML issues aggregated across your entire report. Find out which problems affect the most pages, so you can prioritize fixes that have the biggest impact.
- What's the most common HTML error across all pages?
- Show me which pages have the "missing alt attribute" issue
- List common HTML issues sorted by frequency
Common Accessibility Issues
View accessibility issues aggregated by type across your entire report. Understand which accessibility problems are most widespread and prioritize fixes based on impact and affected page count.
- What's the most common accessibility issue in my report?
- Show me all pages affected by the heading hierarchy issue
- Which WCAG 2.1 Level AA violations affect the most pages?
HTML Issues
Dive into specific HTML validation issues on individual pages. See the exact code snippets, line numbers, and locations of each issue to make fixing them straightforward.
- Show me all HTML errors on the homepage
- What are the details of this specific validation issue?
- List all warnings related to heading structure
Accessibility Issues
Examine accessibility violations on specific pages. Get detailed information about each issue including severity (critical, serious, moderate, minor) and the elements affected.
- Show me all critical accessibility issues on the checkout page
- What accessibility errors affect form inputs?
- List all color contrast issues on the homepage
HTML Guides
Access a comprehensive database of HTML validation guides. Search for explanations of specific errors, learn why they matter, and get step-by-step instructions on how to fix them.
- Explain what "duplicate ID" means and how to fix it
- Search for guides about heading structure
- What does the error "attribute not allowed" mean?
Accessibility Guides
Explore detailed guides for accessibility rules. Understand WCAG guidelines, learn about disabilities affected, and get practical advice on making your site more accessible.
- Explain the "landmark-one-main" accessibility rule
- What are all the WCAG 2.1 Level AA guidelines?
- How do I fix color contrast issues?
Schedules
View and manage your scheduled validation reports. See when schedules last ran, what they're configured to check, and browse the reports they've generated over time.
- Show me all my scheduled reports
- When did my production schedule last run?
- List all reports created by my weekly schedule
Mutings
Manage rules that suppress specific validation issues. View your existing muting rules, see which are active in a report, and create new rules to hide known issues (with write permissions).
- Show me all my muting rules
- Which mutings are active in this report?
- Create a muting rule for legacy pages with heading-order issues
Devices
Browse available device configurations for validation. See different viewport sizes and user agents you can use when creating reports to test how your site works on desktop, mobile, and tablet devices.
- Show me all available mobile devices
- What device was used for this report?
- Create a report using iPhone viewport
Info
Get general information about Rocket Validator including validation engines used (W3C Validator Nu for HTML, Axe Core for accessibility), available plans, and pricing details.
- What validation engines does Rocket Validator use?
- Show me the available pricing plans
- What's included in the Pro plan?
Start exploring your data
Connect your Rocket Validator reports to Claude and get instant insights.
Frequently Asked Questions
What is MCP?
MCP (Model Context Protocol) is an open standard that lets AI assistants like Claude connect to external data sources. Think of it as giving Claude the ability to "see" your Rocket Validator reports directly, instead of you having to copy-paste data.
Which AI assistants are supported?
Currently, Claude has the best MCP support. Other AI tools are adding MCP compatibility — we'll be documenting how to integrate with other AIs.
Is my account safe?
Yes. We use the OAuth 2.0 industry standard to securely connect your Rocket Validator data to Claude. The AI cannot delete any of your data — it can only read your existing reports and, if you grant write access, create new reports or re-validate web pages on your behalf.
Can Claude create reports on my behalf?
Yes, if you grant write access when authorizing the connection. With write access, Claude can create new validation reports on demand and re-validate specific web pages. This is useful when you want to run a fresh validation or recheck pages after you've made fixes. If you only need to browse existing reports, read-only access is enough.
Do I need a paid Rocket Validator plan?
Yes. You need an active Rocket Validator Pro, Agency or Enterprise subscription to use the MCP. Check out our Pricing page to choose your subscription plan.
Do I need a paid Claude plan?
Yes. MCP Connectors require Claude Pro, Max, or Team. The free tier of Claude does not support MCP connections.
Ready to validate your sites?
Start your trial today.