Looking for an alternative to Kontor MCP? Whether you need a different runtime environment, custom authentication support, or alternative API integrations in the Developer Tools ecosystem, we have cataloged and compared the top alternative MCP servers below.
Kontor MCP MCP server provides offline tools for German and EU e-invoices in XRechnung, UBL, CII, and ZUGFeRD formats. It parses, validates, audits, generates, converts, and explains invoices using bundled EN 16931 and KoSIT rules without network calls or API keys. Use it when invoice data must remain local or when an agent needs structured validation results and legal obligation guidance. It runs through stdio or Streamable HTTP and requires Node 20 or Docker.
Direct comparison of key metrics, runtimes, authentication methods, and community popularity.
| Server Name | Runtime | Auth | Pricing | GitHub Stars | Downloads | Action |
|---|---|---|---|---|---|---|
| npx | Free/None | Free | — | — | Current | |
| npx | API key | Bring your own API key (usage-based cost) | 28,192 | — | Compare → | |
| npx | No auth required | Free | 101 | — | Compare → | |
| uvx | No auth required | Free | 745 | — | Compare → | |
| npx | Free/None | Free | — | — | Compare → | |
| npx | No auth required | Free | 825 | — | Compare → | |
| npx | Free/None | Free | 1,026 | — | Compare → | |
| npx | No auth required | Free | 3 | 2 | Compare → | |
| npx | API key | Free | 3,021 | — | Compare → | |
| npx | No auth required | Free | 407 | — | Compare → | |
| npx | No auth required | Free | 64 | — | Compare → | |
| Remote (SSE) | API key | Free | 169 | — | Compare → | |
| npx | API key | Free | 1 | — | Compare → |