"Opera GX" matching MCP servers:

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.

Enables validating and querying SPEI transfers through 66 public M2M operations, with configurable profiles and risk controls.

An MCP server for the Pluggy Open Finance Brazil API, enabling connection to bank accounts and management of financial data including transactions, accounts, investments, and payment intents through natural language.

Enables paid access to 13 Alipay A2M pay-per-use skill endpoints, each call costing 0.05 CNY, with HTTP 402 payment-required handling and Payment-Proof verification for business results.

Provides an agentic RAG workflow with tool calling, enabling natural-language retrieval of policy docs, payment searches, and ticket creation over MCP stdio or HTTP.

Enables MCP clients to convert amounts between currencies using live ECB daily reference rates and to validate IBAN structure and checksum.

Enables interaction with the Qonto API v2 via 21 tools for organization, transactions, attachments, beneficiaries, clients, invoices, labels, memberships, requests, statements, and transfers, with GitHub OAuth authentication and stateful sessions.

MCP server for document intelligence via x402 micropayments. 6 tools: document analysis, invoice extraction, screenshot data, alt text, PII detection, sentiment analysis. Pay-per-use with USDC on Base — no API keys needed.