Side-by-Side Model Context Protocol Comparison
Congress vs Open Sanctions
In-depth architectural comparison of the Congress and Open Sanctions 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
Congress
Developer Tools · Remote HTTP/SSE
Quality: 39/100 (Fair) | Auth: No auth required
Open Sanctions
Developer Tools · Remote HTTP/SSE
Quality: 49/100 (Fair) | Auth: No auth required
Verdict Summary: Choose Congress if you need specialized Developer Tools tools running via a hosted cloud SSE transport. Choose Open Sanctions if your workspace requires Developer Tools integration with remote web transport. Both servers can be configured concurrently in your client's
mcpServers manifest.Which MCP Server Should You Choose?
C
Choose Congress when:
- You need dedicated capabilities in the Developer Tools domain.
- You prefer remote streaming HTTP/SSE transport architecture.
- Your security boundary fits: No auth required (Free / Open Source).
O
Choose Open Sanctions when:
- You need dedicated capabilities in the Developer Tools domain.
- You prefer remote streaming HTTP/SSE transport architecture.
- Your security boundary fits: No auth required (Free / Open Source).
- Primary tools included: search_entities, get_entity.
Feature & Specification Comparison
Tools & Capabilities Breakdown
Congress Tools (0)
No explicit tool names declared in metadata yet. Check project README on main listing page.
Open Sanctions Tools (2)
search_entities
Search global sanctions, watchlists, and PEP (politically exposed persons) databases. Returns matched entities with names, countries, datasets, and sanctions details. Example: search_entities("Vladimir Putin") or search_entities("Huawei", schema="Company")
get_entity
Get full details for a sanctioned entity by its OpenSanctions ID. Returns all properties including names, addresses, identifiers, sanctions programs, and related entities.
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).
Congress Configuration
Open Sanctions Configuration