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mx-fiscal-mcp-server
TypeScript MCP server for Mexican tax and banking validation. It validates RFC, CURP, CLABE, and NSS identifiers; parses CFDI 4.0 invoices; labels SAT catalog codes; checks arithmetic; queries the SAT public CFDI status service; and does it read-only without API keys, CSD certificates, or PAC contracts. Public GitHub repository created September 11, 2026.
MCP unverified
Integration
| Transport | stdio |
| Auth | none |
| Endpoint | npx -y mx-fiscal-mcp-server |
| Install | claude mcp add mx-fiscal -- npx -y mx-fiscal-mcp-server |
Use Cases
| 01 | Parse a Mexican CFDI invoice and explain issuer, receiver, totals, taxes, and SAT catalog codes |
| 02 | Validate RFC, CURP, CLABE, and NSS identifiers using public check-digit and format rules |
| 03 | Check a CFDI status through SAT public services without requiring fiscal credentials or API keys |
Tags
mexico sat cfdi rfc curp clabe tax typescript
Machine-readable: /api/servers.json
· JSON-LD schema embedded in <head>