"Invoice Ninja" matching MCP servers:

Invoice by Ouroboros Apps (https://ouroborosapps.com). Freelance invoice records: approved invoice line items, quantities, agreed rates, due dates, and late terms; invoice changes need explicit approval. Connect by pasting https://invoice-continuity2.vercel.app/mcp into Claude, Cursor, Grok, or ChatGPT developer mode (OAuth). Docs: https://ouroborosapps.com/docs/invoice

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.

Enables AI assistants to interact with the Polish National e-Invoice System (KSeF) for authentication, invoice creation, validation, and retrieval via 30 tools.

Enables AI-powered YouTube video analysis including transcript management, video summaries, chapter generation, keyword extraction, and playback control. Supports searching videos, retrieving channel/playlist information, and translating transcripts using Google Gemini AI.

Single-tenant MCP server for Polish KSeF e-invoice workflows, supporting local stdio testing, draft management, and invoice submission with safety gates.

Enables the generation of professional PDF invoices and their distribution via email using customizable templates. It allows users to create, manage, and send invoices with standard business fields like tax rates and line items through natural language.

MCP server that gives AI agents read access to subscription/SaaS invoice history, ingested from Gmail and stored in Postgres and MongoDB, with tools for listing invoices, retrieving PDFs, and summarizing spend.

Enables autonomous agents to validate, audit, and correct e-invoices against European standards (EN16931) and Peppol regulations.

Enables AI agents to issue Greek myDATA electronic invoices (τιμολόγιο) to the AADE platform, returning the official MARK. Supports creating and querying invoices with automatic VAT handling.

A server that queries Taiwan uniform invoice winning numbers and performs automatic prize matching.

Enables Claude to run read-only SQL queries against the DWH.facturas table in SQL Server, including discovering its columns and asking natural-language questions about invoice data.

Enables verification of Japanese companies through JP-Verify's API: checking qualified-invoice registration (T-numbers) and Corporate Numbers, resolving company names to candidate numbers, retrieving official or romanised English names and addresses, and fetching major-shareholder tables from EDINET filings. Supports single or batch lookups with API-key or key-less sandbox access, returning raw responses plus quota and provenance metadata.

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.

Enables issuing credit notes and credit memos against an invoice or standalone as revisable drafts that can be finalized into frozen numbered documents, then rendered as Markdown or printable HTML with totals broken down by currency, reason and month. All amounts are handled as integer minor units and all data stays local, so nothing is sent anywhere.

Payment firewall for AI agents: a signed, independently verifiable verdict on every money-moving action. Blocks wrong/lookalike payee, over-cap, and duplicate-invoice (BEC) fraud before money moves — anyone can verify a verdict against the public JWKS. Free, local-first, non-custodial.

MCP server for HOGSWAP, providing DEX-aggregated quotes, unsigned swap builds, and x402 invoice payments with any assets, all non-custodial.

Enables AI agents to work with Italian FatturaPA electronic invoices and the SDI exchange system: extracting invoice data, running structural XML checks, detecting anomalies, aggregating multi-invoice reports, looking up SDI error codes offline, and verifying Italian or EU VAT numbers via VIES. Installs in one line and runs locally with fail-closed file access so untrusted documents can be processed safely.

Enables AI agents to answer Cryptbrew product questions and check live API health without merchant authentication. Exposes tools for pricing, FAQs, invoice flow, and health probes over stdio or streamable HTTP.

Enables LLM agents to query and reconcile an accounts-payable ledger through safe read-only SQL, deterministic invoice-to-payment matching, and exception explanations for underpayments, duplicates, currency mismatches, and overdue invoices. Ships with a synthetic ledger, golden-set evals, and a month-end review workflow so quality can be measured in CI.

MCP zero-trust gateway that sits in front of every internal MCP server, detects tool-poisoning/metadata drift in real time, and maintains a cryptographic provenance ledger of every agent tool call.