Full-stack Model Context Protocol platform for building, testing, and deploying MCP servers and agentic AI applications
Email MCP server for Claude, Cursor and other AI agents to access every mailbox you own
Stage
Not given
Not given
Founded
Not given
Not given
Based in
US
GB
Pricing model
Freemium
Free trial
Pricing
Hobby: free forever with 30k requests/mo; Pro: $30/org/mo with 300k requests/mo included and $0.10 per 1k extra requests beyond 300k; Enterprise: custom pricing starting at $250/mo with dedicated infrastructure and custom SLAs.
Monthly: €8.99/month after 7-day free trial. Yearly: €30/year (€2.50/month equivalent, 72% savings). Includes both the Mac app and the MCP connector.
Key features
Open-source TypeScript SDK with declarative decorators and Zod validation
NitroStudio desktop IDE for visual tool testing and AI reasoning visualization
NitroCloud serverless hosting with auto-scaling and custom domains
GitHub integration for one-click deployment
Enterprise authentication modules
White-label NitroChat AI interface
99.99% uptime SLA on NitroCloud
API to MCP conversion tools
Search across multiple mailboxes simultaneously
Read full email threads with conversation history
Move, archive and mark emails as read
Scoped permissions: read, change, and send separately
Attach files up to 18 MB to drafts and emails
Download and open email attachments
Native macOS mail client included
Support for multiple email providers
Encrypted file handling during transfer
Revoke access anytime within the hour
What makes it different
Designed for teams building custom MCP tools from their own APIs, not a catalog of prebuilt connectors
Complete full-stack platform combining SDK, IDE, and cloud hosting in one suite
Open-source core with npm-installable packages for SDK, CLI, and UI widgets
80,000 deployments and 13 million requests already in production
Enterprise-grade security with AES-256 encryption and JWT authentication
Works with any MCP client, not locked to one AI platform
No installation required; works on macOS, Windows and Linux
Access unlimited email accounts simultaneously in one connection
Send emails with opt-in permission and approval workflow
NitroStack
Sickle