NitroStack vs fractal

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

NitroStack compared with fractal
Detail	NitroStack	fractal
What it does	Full-stack Model Context Protocol platform for building, testing, and deploying MCP servers and agentic AI applications	Long-term memory for AI agents that organizes itself and corrects itself
Stage	Not given	MVP
Founded	Not given	Not given
Based in	US	SE
Pricing model	Freemium	Free
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.	Personal: Free during early access. Unlimited memories, all agents with separate memories, no card required. Enterprise: On request, set up by the team for departmental organization with cross-department sharing and direct support.
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	Self-correcting memory that updates when facts change Historical memory queries with time-based retrieval Automatic topic organization and hierarchy Separate memory for each agent with controlled sharing Multi-agent support via MCP, REST API, or LangGraph AES-256 encryption at rest and in backups OAuth 2.1 authentication and API key management Data export and deletion capabilities 37 MCP tools with automated verification on every code change
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	Understands what changed, when it was true, and where it belongs - beyond vector database similarity Never contradicts itself by automatically replacing outdated facts Fully GDPR aligned with built-in privacy by design Two-minute integration with Claude, ChatGPT, Cursor and any MCP client Data stays in Europe on AWS eu-north-1 and never used for model training
Free plan	Not given	Not given
Open source	Not given	Not given
Platforms	Not given	Not given
Public API	Not given	Not given
Community votes	0	0
DR (Domain Rating by Ahrefs)	15 −1 (down) since last check	Not checked yet no change since last check
Trust Flow (Majestic)	7	0
Citation Flow (Majestic)	28	0
Referring domains (Majestic)	125	0

6 details filled in for both companies.

More alternatives to NitroStack More alternatives to fractal