"KDE" matching MCP servers:

Model Context Protocol (MCP) server for German Electronic Invoicing (ZUGFeRD 2.x / XRechnung 3.x). Provides tools to validate, generate, parse, and convert invoices compliant with EN 16931 and KoSIT.

An MCP server that enables AI agents to search, pay for, and call paid APIs using the x402 protocol, with automatic USDC settlement.

Enables read-only consultation of electronic service invoices (NFS-e) from São Paulo city hall via an official source, using a single tool and pay-per-use credits.

Enables querying DETRAN MG vehicle licensing fees and issuing DAE payment slips from the official source, using natural language through any MCP-compatible client.

An MCP server that provides read-only access to Brazilian Federal Revenue (Receita Federal) data to issue installment payment guides for MEI (Microempreendedor Individual) from official sources.

Enables consulting and issuing IPVA guides for Bahia state (Brazil) directly from the official SEFAZ BA source, with a read-only tool.

Read-only MCP server to query ANTT SIFAMA second-issue boletos from the official source. Hosted service with prepaid pay-per-use credits, works with any MCP client.

MCP server that enables users to query and download SABESP (São Paulo state water utility) bills and account data from official sources, with read-only access and pay-per-use pricing.

An MCP server over stdio that exposes strictly validated tools, using Pydantic models as both schema and validator and returning -32602 for invalid arguments.

Enables clients to issue refunds over stdio through a JSON-RPC tool call backed by a ledger. Malformed arguments are rejected with a real -32602 error code instead of the SDK's default isError result.