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MCP Compatible · API + GitHub Action

Ship on‑brand AI copy, every time

Stop off‑brand AI copy before it ships. StyleMCP validates every draft, flags violations, and auto‑rewrites to your exact voice across Claude, GPT, and any model.

YAML style packs MCP + REST API GitHub Action for CI
Free tier: 5,000 requests/month · No credit card
Terminal — stylemcp
$ curl -X POST https://stylemcp.com/api/validate \
-d '{"text": "Click here to learn more!"}'
{
"valid": false,
"score": 65,
"violations": [{
"rule": "no-click-here",
"message": "Avoid 'click here' — describe the destination"
}],
"suggestion": "Learn more about our features"
}

Integrates with your stack

Claude Vercel Supabase Linear

AI doesn't speak your brand

Every AI model has the same problem: it generates text that sounds like everyone else. Generic, corporate, forgettable.

Your brand voice is unique. But without guardrails, AI outputs slip into jargon, weak CTAs, and off-brand language that erodes trust.

StyleMCP catches these mistakes before your customers do.

"Click here to learn more about our product!"
"Explore our product features"
"We leverage AI to facilitate amazing outcomes"
"We use AI to help you get better results"
"Sorry for any inconvenience this may have caused"
"Here's how we're fixing this"

Everything you need to stay on-brand

A complete toolkit for enforcing brand consistency across every AI-generated output

New

Learn My Voice

Drop in your best content and let AI analyze your brand voice. Generates custom style rules automatically—no manual config needed.

Real-time Validation

Instantly validate AI text against your brand rules. Get scores, violations, and actionable fixes in milliseconds.

AI Auto-Rewrite

When rules can't fix it, AI takes over. Automatically rewrites off-brand content while preserving your meaning.

Style Packs

Pre-built templates for SaaS, E-commerce, Healthcare, and Finance. Or create custom rules in simple YAML.

MCP Integration

Native Model Context Protocol support. Connect directly to Claude, Cursor, and other AI-native tools.

REST API

Simple HTTP API for any integration. Validate single texts or batch process thousands at scale.

GitHub Actions

Run brand checks in CI/CD. Catch off-brand copy in pull requests before it reaches production.

New

AI Trust Layer

Purpose-built validation for AI outputs. Detects voice drift, compliance risks, and hallucination patterns before they reach customers.

Usage Analytics

Track validation metrics across your organization. See trends, identify problem areas, and prove ROI to stakeholders.

See it in action

Watch StyleMCP catch and fix brand violations in real time

Pick a bad example:
or paste your own
Validate as:
118/500
Analyzing content...
Brand Score

Get unlimited validations with a free account

Get Started Free →

Click Validate to see results

Up and running in 5 minutes

No complex setup. No training required. Just plug in and validate.

1

Define Your Rules

Create a style pack with your voice, patterns, and CTAs. Or start with our SaaS, E-commerce, Healthcare, or Finance templates.

2

Connect Your Agents

Add StyleMCP to your AI workflow via MCP, REST API, or CLI. Works with Claude, GPT, Llama, and any model.

3

Stay On Brand

Every AI output is validated and can be auto-corrected. Your brand stays consistent, at any scale.

Simple, powerful API

Integrate brand validation into any workflow. Validate single texts or batch process at scale with sub-50ms response times.

POST /api/validate
POST /api/rewrite
GET /api/packs
GET /api/packs/:pack/voice
GET /api/mcp/sse
Response — validate
{
  "valid": true,
  "score": 92,
  "violations": [],
  "voice": {
    "tone": "confident",
    "formality": "professional"
  },
  "pack": "saas"
}

Where StyleMCP fits

Built for teams that need consistent voice across every AI output.

"Run StyleMCP before publishing. It catches off‑brand phrases, weak CTAs, and jargon so marketing ships clean copy every time."

Pre-ship QA
Pre‑ship QA
Best for: Marketing & Content teams

"Gate your docs and product copy in CI. The GitHub Action fails PRs when brand rules break, before anything reaches production."

CI Guardrails
CI Guardrails
Best for: Engineering & Docs teams

"Keep support bots and copilots on‑brand. Deterministic rules + AI rewrites make every response sound like your company."

Agent Guardrails
Agent Guardrails
Best for: Support & Product teams
8
Style Packs Ready
5,000
Free requests / month
API + MCP
Integration modes
Sub‑second
Typical validation

Ready to keep AI on-brand?

Start validating your AI outputs today. Free to use, open source, and endlessly customizable.