"Créer des systèmes de prompt pour les modèles de langage (LLM)" 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.

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.

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.

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.

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

Discover audio and LLM services, compare seven voices, and check prices for free. Generate speech, transcribe audio and request LLM text with optional capped USDC payments on Base; voice-cloning requirements are also available.

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.

Conecta sua conta BTGPactual a assistentes de IA via Open Finance Brasil, permitindo consultas de saldos, extratos, faturas de cartão e investimentos em linguagem natural (somente leitura).

Conecta sua conta do Sicoob ao Claude, ChatGPT e agentes de IA via Open Finance Brasil, permitindo consultar saldos, extratos, faturas de cartão e investimentos em linguagem natural.

Emita e gerencie notas fiscais de serviço (NFS-e) conversando com o agente, hospedado pela plataforma, sem precisar de conta na nfe.io.

Reads and validates any European e-invoice a business receives — XRechnung, UBL, CII, ZUGFeRD/Factur-X PDF, Peppol BIS 3, FatturaPA, KSeF FA(3) — into canonical EN 16931 JSON with plain-language fix hints in EN/DE/PL/IT/FR, plus PDF, CSV and DATEV export. Nothing is stored; works without a key on a small daily quota.

Model Context Protocol (MCP) server for Mexican Electronic Invoicing (CFDI 4.0, Complemento de Pagos 2.0). Provide tools to validate, generate, and explore API specifications for SAT/PAC interoperability.

MCP server that gives AI agents paid tools to de-risk costly actions: dependency vetting, x402 endpoint verification, JSON repair, and URL reading. Fronts the Guard HTTP API at guard.fabtally.com.

Enables AI agents to call LLM APIs via x402 micropayments in USDC on Base network, manage a local wallet, and query consumption records.

MCP server exposing a Lightning wallet to LLM agents over Nostr Wallet Connect (NIP-47): balance, invoices, LN address/LNURL payments, batch pay, and keysend. All spend tools are wrapped in a defense-in-depth safety stack — budget caps, allowlist, two-step confirmation, audit log.

AI payment guardrails for Python & MCP: spend-capped agent identity (KYA), dry-run/budget/approval gates, prompt-injection defense, encrypted secret vault.

Enables LLM agents and MCP clients to interact with the Blesta billing API. It provides read-only tools for searching clients, invoices, services, transactions, and payment accounts, plus optional write tools for creating invoices, managing services, recording payments, and generating customer-facing payment links.

Connect Peil to Claude (or any MCP client): log hours, draft invoices from unbilled hours, and check where you stand — from a prompt.

Enables LLM agents to operate a CRM through 114 typed tools across 24 modules, covering contacts, pipelines, calendars, messaging, invoicing, and payments. Destructive and outward-facing actions are annotated for visibility and approval.