Full-stack Model Context Protocol platform for building, testing, and deploying MCP servers and agentic AI applications
Authorization layer for AI agent spend with human-approved mandates and tamper-evident proof
Stage
Not given
Startup
Founded
Not given
2026
Based in
US
Not given
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.
Free 12 week pilot for card issuing platforms
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
Passkey-signed spend mandates with purpose, budget, merchants, and time windows
Real-time authorization decisions with sub-1 second response time at p99
Human challenge via passkey step-up for exceptional spend
Fail-closed payment processing if no decision arrives in time
Hash-chained evidence ledger with tamper-evident records
Exportable evidence packs for chargebacks and audits
Supports card, wallet, x402 and stablecoin payment rails
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
Human-approved mandates enforce intent, not just static limits or merchant category blocks
Operates outside the agent in the issuer's authorization path, preventing agent bypass or override
Creates tamper-evident audit trail linked to agent identity, run, and policy version
Never holds funds or issues cards; integrates with existing issuer infrastructure
Single mandate and policy core across multiple payment rails and issuers
NitroStack
Levee