"X" matching MCP servers:

Enables automated labor and service contract risk review through MCP, supporting single or batch contract analysis, risk knowledge base queries, and regional regulation lookups.

Enables AI clients to access Chinese and global trademark data, including search, announcements, classification, review documents, transfer records, and applicant risk clues through the Quandashi platform.

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.

Validates electronic invoices (XRechnung, ZUGFeRD, Factur-X, Peppol BIS, etc.) against authority-pinned rules and explains failures.

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.

Automates GSTR-1 filing through Sandbox.co APIs, enabling seamless integration with Claude Desktop or API for GST return submission.

MCP server that enables natural-language interaction with the Avito Ads advertising API, including campaign, ad group, and creative management, statistics retrieval, fund transfers, and ORD paperwork filing.

Enables AI agents to validate Mexican RFC, CURP, CLABE and NSS identifiers with real check digits, parse CFDI 4.0 invoices with labelled SAT catalogue codes and verified totals, and query the SAT's public status service to see whether an invoice is still valid. It also generates coherent test people and companies, all read-only and without API keys, certificates or PAC contracts.

Validates EU electronic invoices (Peppol, XRechnung, FatturaPA, etc.) and explains validation error codes, enabling AI coding agents to check invoice validity and get fixes before rejection.

Read and check European e-invoices (Factur-X, ZUGFeRD, XRechnung, UBL, CII) from an AI assistant: contents in plain text plus an EN 16931 consistency check.

Enables real-time retrieval of authoritative Chinese government policies and verification of law article citations (《法名》第X条) via public sources, with no API key required.

MCP server for German e-invoice compliance (XRechnung 3.0 & ZUGFeRD 2.x) enabling AI agents to validate, generate, parse, and check compliance of electronic invoices per EN 16931.

MCP server for searching and retrieving Japanese laws from the e-Gov API, enabling natural language queries for legal information.

Enables LLMs to search and retrieve Japanese laws from the e-Gov API v2, including keyword search, article fetching, table of contents, and revision history.

Enables AI agents to generate documents (PDF/DOCX/Factur-X) and manage electronic signatures (eIDAS/PAdES) via natural language using LayerOne's DocX and Sign APIs.

MCP server that enables AI agents to search and read Puerto Rico legislative measures with pay-per-call in USDC on Base, using the x402 agent-payment standard.

Enables AI agents to interact with EAD Enterprise Suite for managing signatures, evidence, notifications, and dossiers.

MCP server that wraps the official JPO patent information API to enable retrieval of patent, trademark, and design records for known case numbers.

Autonomous M2M compliance and trust APIs for AI agents (KYB, OFAC, VAT, Sanctions checking).

基于 Model Context Protocol (MCP) 的电子签署工具，支持文件上传、PDF转换、签署流程创建和状态查询等功能。