MCPs tagged with # Secure authentication

Braintree MCP Server implements the Model Context Protocol (MCP) to provide AI assistants with structured, direct access to PayPal Braintree's payment services. It supports both STDIO and Server-Sent Events (SSE) transports, facilitating integration with AI clients and standalone web-based deployments. The server allows execution of GraphQL queries against Braintree, supports multi-client access, and handles authentication through environment-based configuration. Designed for secure, extensible, and automated payment operations in AI-driven workflows.

• ⭐ 3
• MCP
• QuentinCody/braintree-mcp-server

Alby Bitcoin Payments MCP Server provides a way to integrate Bitcoin Lightning wallets with large language models (LLMs) via the Model Context Protocol (MCP). This server supports Nostr Wallet Connect (NWC), LNURL, and L402, enabling secure payment and authentication flows. Leveraging the official MCP TypeScript SDK along with Alby SDKs and tools, it allows agents and clients to interact with lightning wallets using various transport protocols like SSE and HTTP Streamable. The server can be integrated with tools such as Claude, Goose, and Cline for seamless wallet operations within AI workflows.

• ⭐ 36
• MCP
• getAlby/mcp

Pica MCP Server provides a standardized Model Context Protocol (MCP) interface for interaction with a wide range of third-party services through Pica. It enables direct platform integrations, action execution, and intelligent intent detection while prioritizing secure environment variable management. The server also offers features such as code generation, form and data handling, and robust documentation for platform actions. It supports multiple deployment methods, including standalone, Docker, Vercel, and integration with tools like Claude Desktop and Cursor.

• ⭐ 8
• MCP
• picahq/mcp

Firefly MCP Server is a TypeScript-based server implementing the Model Context Protocol to enable integration with the Firefly platform for discovering and managing resources across Cloud and SaaS accounts. It supports secure authentication, resource codification into infrastructure as code, and easy integration with tools such as Claude and Cursor. The server can be configured via environment variables or command line and communicates using standardized MCP interfaces. Its features facilitate automation and codification workflows for cloud resource management.

• ⭐ 15
• MCP
• gofireflyio/firefly-mcp

Couchbase MCP Server provides an MCP-compliant server for connecting Large Language Models to Couchbase clusters. It supports various database operations such as bucket and collection listing, document retrieval, upsert, and deletion, as well as running SQL++ queries and retrieving index information. Designed for easy integration with MCP clients like Claude Desktop, it includes features for secure authentication and query mode configuration. The server can be deployed using a prebuilt PyPI package or directly from source.

• ⭐ 24
• MCP
• Couchbase-Ecosystem/mcp-server-couchbase