StyleMCP checks AI-generated drafts against brand rules, reports violations, and can rewrite copy to align with a brand voice. Its Learn My Voice feature analyzes supplied content to generate style rules, while live validation returns scores and actionable fixes. Teams can use ready-made SaaS, E-commerce, Healthcare, and Finance packs or define rules in YAML. The maker describes its AI Trust Layer as detecting voice drift, compliance risks, and hallucination patterns. Connections include MCP with Claude and Cursor, a REST API, a CLI, and GitHub Actions for CI/CD; the maker says it works with Claude, GPT, Llama, and any model. The core validation engine is open source and can be run on a user's infrastructure with Docker Compose. Free costs 0.00 USD per month for 5,000 requests monthly. Pro costs 9.00 USD per month and includes 25,000 requests. Each validate, rewrite, or batch API call counts toward usage, with batch calls counted by items processed. Requests return a 429 error after quota is exceeded until the first-of-month reset.
Who it is for
StyleMCP suits marketing and content teams checking brand voice, as well as engineering and documentation teams. Support and product teams are also named use cases.
What is good
- Generates style rules from supplied content
- Offers four prebuilt style packs
- Supports custom rules in YAML
- Connects through API, CLI, MCP, and GitHub Actions
- Core validation engine can run on your infrastructure
What to know first
- Free plan allows 5,000 requests per month
- Over-quota requests return a 429 error until reset
- Batch requests count by the number of items processed
Verdict
StyleMCP pairs draft validation and rewrites with several ways to connect it to team workflows. Check request limits before choosing a plan, particularly for batch processing.
StyleMCP plans and pricing
All plansCompared on writing style checkers
- Free plan
- Yes
- Custom style guide
- Yes
- Terminology management
- Yes
- Brand voice rules
- Yes
- Editor support
- Claude, Cursor, CLI, GitHub Actions
- Rule action
- suggest
- Team workflow
- Yes
- API access
- Yes
