01 MCP server
OPA MCP
An open-source MCP server that gives Claude, Cursor, VS Code, and any other MCP-compatible client a structured interface to Open Policy Agent and Regal. Author, evaluate, debug, and deploy Rego policies without leaving your AI client.
What it enables
- 50+ tools across 7 categories: authoring, evaluation, bundle builds, server management, high-level helpers, and Conftest configuration testing
- Higher-level helpers: explain decisions, formal verification via Z3 SMT, diagnose undefined queries, share policies as Gists, and more
- Curated MCP resources: OPA built-ins catalog, Rego style guide, RBAC/ABAC/Kubernetes pattern library
- Structured error taxonomy, schema-validated inputs, response-size caps