"Understanding High-Level Control Systems" matching MCP servers:

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.

Enables MCP clients to access hosted models and services via a local stdio bridge, with live model discovery, pricing, balance checks, and paid execution requiring cost estimates.

MCP server for AWS Payment Cryptography that gives AI coding assistants direct access to the APC control plane and data plane, with embedded knowledge of payment standards, HSM vendor command sets, and PCI PIN v3.1 compliance requirements.

Connects an AI assistant to a BuchhaltungsButler tenant through 59 German-language tools — 54 endpoint tools (one per API v1 endpoint) plus 5 bundle tools — covering documents, payments, invoices, postings, master data, cost centers, and reports, of which 19 are read-only. Runs locally, so credentials go only to BuchhaltungsButler itself, and lets users control in their client which tools the assistant may call.

An MCP server for Danish accounting via Billy.dk API, enabling natural-language control over invoices, bank lines, reports, and more, with a write-guard for safety.

Universal billing gateway for MCP servers. Add Stripe subscription billing to any MCP server with one line of code. Supports tiered plans, usage tracking, and automatic access control.

Enables autonomous financial agents and payment systems to analyze transaction streams in real time, detect velocity-based fraud patterns such as card testing, volume spikes, and account takeovers, and produce balanced ledger records with audit telemetry.

Enables interaction with Odoo ERP systems for product, customer, order, invoice, and payment management using MCP tools.

Enables pay-per-call access control for AI agents using HTTP 402 and on-chain settlement, allowing microtransactions for API usage.

MCP server for buying advertising outcomes such as Telegram subscribers and website traffic from a prepaid balance. Provides tools for campaign management, forecasting, and budget control, with guardrails so agents can spend but not fund or withdraw.

Enables Alexa+ agents to purchase x402-protected digital resources while a human retains control over budget, approval, and wallet signing via MCP tools.

Lets agents query anchored ground-level capture data, verify provenance, and commission new captures, paying per request in USDC on Base or Arc via x402.

High-performance Go gateway and reverse proxy for Model Context Protocol servers with rate-limiting, authorization, and pay-per-result metering.

A MakeMyTrip-style travel-booking MCP server with flights, hotels, trains, and bookings, featuring risk-tiered tools and role-based access control.

MCP server that wraps Hive Gamification's 8 BOGO doors behind a 4-level hierarchical budget with atomic reservation, upstream POST, and settlement/release, implementing OpenClaw's 3-layer payment governance.

A self-hosted MCP gateway with Google OAuth and role-based access control, allowing MCP clients like Claude and Cursor to connect and interact with configured Zendesk and Chargebee connectors through an admin dashboard.

An MCP server that enables AI agents to safely interact with a double-entry payments ledger, enforcing idempotency, policy-based access control, and human-in-the-loop approval for high-value actions.

Ledgent is a secure agentic integration layer that exposes Salesforce and billing operations as MCP tools. It enforces action-level authorization, idempotency, PII tokenization, and full audit logging, enabling AI agents to safely perform writes with human approval for high-risk actions.

PayDesk MCP is a production-grade Model Context Protocol (MCP) server that exposes payment gateway APIs, tools, prompts, and resources. It bridges the gap between an AI assistant and three underlying database systems to resemble real payment services like Stripe, Razorpay, or PayPal.

Enables AI systems to interact with PayPal Braintree payment processing, allowing them to fetch transactions, create payments, and manage customer data via MCP tools.