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Rayrun vs fractal

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

Rayrun compared with fractal
DetailRayrun logo Rayrun fractal
What it doesOne endpoint for every MCP tool Long-term memory for AI agents that organizes itself and corrects itself
StageNot given MVP
FoundedNot given Not given
Based inUS SE
Pricing modelFreemium Free
PricingFree for one developer with up to 25 source-built services, 50,000 tool calls a month, then $0.20 per thousand. Team plan is $25 per developer per month with 100,000 tool calls per developer a month, pooled, then $0.20 per thousand. Enterprise from $1,500 per month. 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
  • Source-built servers with TypeScript or Python projects
  • Remote MCP, OpenAPI, npm package, and container image support
  • Per-tool and per-argument access control policies
  • Tool definition review and approval workflow
  • Content scanning with literal and regex detectors
  • Activity tracking and audit trails
  • OIDC and SAML 2.0 single sign-on
  • SCIM 2.0 provisioning
  • Workspace-specific data encryption
  • Custom domain publishing with DNS and Cloudflare certification
  • 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
  • One endpoint replaces every client config, eliminating need for each client to store every server and secret
  • Coding agent builds the server automatically with no adapter needed
  • Credentials held once by Rayrun instead of distributed across clients
  • Built-in security review with published controls and audit trails for compliance teams
  • Support for multiple service types without writing adapters
  • 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 planNot given Not given
Open sourceNot given Not given
PlatformsNot given Not given
Public APINot given Not given
Community votes00
DR (Domain Rating by Ahrefs)45 no change since last checkNot checked yet no change since last check
Trust Flow (Majestic)120
Citation Flow (Majestic)360
Referring domains (Majestic)1250

6 details filled in for both companies.

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