Add Offorte official MCP server

[denniswiemer]

Description

Add official Offorte Proposal Software MCP server (https://github.com/offorte/offorte-mcp-server) on Official integrations section.

Server Details

• Server: Offorte MCP server
• Changes to: Adding a new server entry to the README.md

Motivation and Context

Offorte provides a powerful MCP server that enables AI agents to create and send sales & business proposals. Adding this server to the official list will increase visibility and help users discover this useful integration for their AI applications.

How Has This Been Tested?

Integration with the server was tested from several clients, including: Cursor, Claude and Vapi.

Breaking Changes

N/A

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Documentation update

Checklist

• I have read the MCP Protocol Documentation
• My changes follows MCP security best practices
• I have updated the server's README accordingly
• I have tested this with an LLM client
• My code follows the repository's style guidelines
• New and existing tests pass locally
• I have added appropriate error handling
• I have documented all environment variables and configuration options

Additional context

The Offorte MCP server is actively maintained and fully aligned with the latest Model Context Protocol specifications. Built with the FastMCP framework, it enables AI agents to create and send business proposals as part of streamlined, sales-oriented workflows. Currently, it’s the only MCP server focused specifically on proposals.

[olaservo]

Thanks for your contribution to the servers list. This has been merged in this combined PR: #2075

This is a new process we're trying out, so if you see any issues feel free to re-open the PR and tag me.