"1&1" matching MCP servers:

Provides a 1-line USDC paywall wrapper for any FastMCP tool using the Coinbase x402 protocol, enabling pay-per-call endpoints settled on Base, Polygon, Solana, or Bitcoin Lightning.

A pre-payment safety gate for x402 that screens payment metadata for PII, enforces spending policies, and detects replay attacks before signing.

Pay-per-call USDC payment proxy for AI agents. Issue scoped Pay Tokens with hard spending caps and auto-journal every charge to freee / Money Forward / QuickBooks.

Enables AI agents to search marketplace listings, place escrow-protected purchases paid in Nano, track orders, and retrieve signed receipts.

Non-custodial USDC <-> bank for AI agents. Free quotes; $0.05 USDC per session via x402; 1% commission itemised in every quote. Own funds only. PT + EU/EEA (not UK). 18+.

Payment infrastructure MCP server enabling AI agents to make gasless USDC payments on Base and JIT single-use virtual card checkouts, with zero-trust card handling, merchant checkout hints, and signed receipts.

A Model Context Protocol server that executes headless web scraping and ephemeral secret vaults, settling micro-transactions natively on Base Mainnet via the x402 protocol.

Enables MCP clients to render HTML to PDF and check a prepaid account balance through two tools, returning PDF resources plus render and billing metadata.

Enables interaction with the Gumroad v2 API, providing access to all 105 seller operations such as products, sales, payouts, subscribers, email campaigns, licence keys, and webhooks.

Enables AI agents to issue, void, query, and manage Taiwan e-invoices via 27 MCP tools, wrapping the Universal EC POS Web Service.

MCP Server for the LINE Shopping API, enabling AI agents and tools to interact with LINE Shopping data and operations via the Model Context Protocol.

An MCP server that exposes tools for Taiwan's ezPay e-invoice lifecycle, enabling AI assistants to issue, void, and query invoices and allowances through the standard MCP protocol.

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.

Enables AI assistants to accept payments, verify transactions, and manage customers via Paystack API through natural language.

Enables AI agents to autonomously discover services, negotiate binding quotes, make idempotent purchases, and receive cryptographically verifiable deliverables.

An MCP server for autonomous AI agents to discover, pay for, and rate paid APIs on Casper with policy-controlled approvals and on-chain reputation.

Enables querying issued electronic service invoices (NFS-e) from the Brazilian Federal Revenue via natural language, providing read-only access to official invoice data.

Enables querying official electronic service invoices (NFS-e) from the Cuiabá city government in Brazil, providing read-only access to official data.

Enables AI assistants to manage products, shopping carts, and orders in an online store through a well-defined MCP API.

Enables issuing, consulting, and listing Brazilian NFS-e invoices through Spedy's API over an authenticated HTTP endpoint.