Mcp Maigret vs Opa Mcp Server — MCP Server Comparison | AllMCPs
Side-by-Side Model Context Protocol Comparison
Mcp Maigret vs Opa Mcp Server
In-depth architectural comparison of the Mcp Maigret and Opa Mcp Server MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.
At a Glance & Executive Verdict
Mcp Maigret
Security · Local stdio
Quality: 59/100 (Good) | Auth: No auth required
Opa Mcp Server
Security · Local stdio
Quality: 55/100 (Good) | Auth: No auth required
Verdict Summary: Choose Mcp Maigret if you need specialized Security tools running via a local process. Choose Opa Mcp Server if your workspace requires Security integration with local subprocess execution. Both servers can be configured concurrently in your client's mcpServers manifest.
Which MCP Server Should You Choose?
Choose Mcp Maigret when:
You need dedicated capabilities in the Security domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: No auth required (Free / Open Source).
You have access to required keys: MAIGRET_REPORTS_DIR.
MCP server for maigret, a powerful OSINT tool that collects user account information from various public sources. This server provides tools for searching usernames across social networks and analyzing URLs.
Open Policy Agent (OPA) and Rego policy toolkit. 32 tools spanning authoring (format, lint, check, deps), evaluation (eval, test, bench, coverage), and OPA REST control (policies, data, decisions, compile). Wraps the OPA CLI and the Regal linter, with AI-assisted helpers for explaining decisions, generating test skeletons, and suggesting fixes.
Category & Scope
Tools & Capabilities Breakdown
Mcp Maigret Tools (7)
search_username
username
format
use_all_sites
tags
parse_url
url
Opa Mcp Server Tools (52)
rego_format
Ready-to-Paste Client Configurations
Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).
Mcp Maigret is categorized under Security and uses a local stdio subprocess. In contrast, Opa Mcp Server belongs to Security using local stdio subprocess. Select Mcp Maigret when you need capabilities focused on security and Opa Mcp Server when you require tools for security.
Run Regal across a file or directory. Returns findings grouped by category. **Requires `regal` on `PATH` or `REGAL_BINARY` set.
rego_parse_ast
Parse Rego to AST JSON. Wraps `opa parse`.
rego_inspect
Inspect a bundle or directory: packages, rules, annotations. Wraps `opa inspect`.
rego_capabilities
Return the capabilities (built-ins, future keywords) understood by the bundled OPA.
rego_deps
Static dependency analysis: rule-level data references and cross-package calls.
rego_migrate_v1
Migrate Rego v0 source to v1 syntax. Runs `opa fmt --rego-v1` then validates with `opa check --v1-compatible`. Returns `{ original, migrated, changed, valid, errors }`.
rego_check_schema
Check Rego against a JSON Schema. Validates that every `input.*` field the policy reads exists in the schema using `opa check --schema`. Accepts inline schema or a path to a JSON Schema file on disk.
rego_eval
Evaluate a query against a policy and input. The bread-and-butter tool.
rego_eval_with_explain
Evaluate with `--explain=full` and return a structured trace.
rego_eval_with_profile
Evaluate with `--profile` and return per-rule timing and evaluation counts.